J B Shaw studies how different biological molecules, especially proteins and antibodies, interact with viruses and bacteria. His research includes identifying which antibodies are effective against the Ebola virus, providing crucial insights for vaccine design. Additionally, he explores bacterial communities in soil and their effects on plant health. He also develops innovative methods for analyzing complex molecules in order to gain a deeper understanding of how these molecules function in various diseases.
Key findings
In his 2021 study on Ebola, Shaw found that only a small subset of antibody specificities was responsible for most of the neutralizing capacity in convalescent human plasma, indicating this could inform better vaccine designs.
His work on rhizosphere bacteria revealed that 13% of bacterial communities fluctuate between day and night, showing alignment with plant growth cycles, which could enhance agricultural practices.
Shaw's 2013 development of ultraviolet photodissociation mass spectrometry achieved 100% sequence coverage for O-glycopeptides, advancing knowledge in proteomics and potential disease mechanisms.
Using high-throughput methods, he identified 3,663 unique peptides in one proteomic sample, which could lead to better disease understanding and treatment development.
His research showed that the protein RaxST in Xanthomonas oryzae modifies other proteins, providing insight into bacterial communication and plant disease resistance.
Frequently asked questions
Does Dr. Shaw study Ebola virus?
Yes, Dr. Shaw focuses on the immune response to Ebola and how specific antibodies can neutralize the virus.
What methods does Dr. Shaw use in his research?
He employs advanced techniques like mass spectrometry and gene sequencing to analyze complex biological molecules.
Is Dr. Shaw's work relevant to farmers?
Yes, his research on bacterial communities and plant health can help improve agricultural practices and crop resilience.
What types of diseases has Dr. Shaw researched?
Dr. Shaw has researched diseases caused by bacteria and viruses, including Ebola and plant diseases.
How does Dr. Shaw's research help in treating diseases?
By improving our understanding of proteins and antibodies, his work aids in the development of better diagnostics and potential treatments.
Publications in plain English
Native Top-Down Analysis of Membrane Protein Complexes Directly From In Vitro and Native Membranes.
2025
Molecular & cellular proteomics : MCP
Jung W, Panda A, Lee J, Ghosh S, Shaw JB +1 more
Plain English This study focused on understanding how protein complexes function in cell membranes and improved a technique called native mass spectrometry (nMS) to analyze these structures without needing to extract them from their natural environments. Researchers found that they could identify key protein structures directly from native membranes, discovering several important protein forms and their interactions; for instance, they identified multiple forms of a complex related to antibiotic resistance, which could include lipid attachments. This is significant because it enhances our ability to study how proteins operate in their natural settings, potentially aiding drug development.
Who this helps: This helps researchers and drug developers in finding better treatments for bacterial infections.
Protein complex heterogeneity and topology revealed by electron capture charge reduction and surface induced dissociation.
2024
bioRxiv : the preprint server for biology
Shaw JB, Harvey SR, Du C, Xu Z, Edgington RM +3 more
Plain English This study examined a new technique called electron capture charge reduction (ECCR) combined with mass spectrometry to better analyze protein structures, particularly focusing on glycoproteins. The researchers found that using ECCR allowed for more accurate measurements of complex proteins, reducing their charge states effectively, and revealing details about their structure and glycan variations. This improved technique is particularly significant for studying proteins like the SARS-CoV-2 spike protein, which is crucial for understanding its role in the virus.
Who this helps: This helps researchers and scientists who study proteins and their functions, especially in the context of diseases like COVID-19.
Goldilocks Fluctuations: Dynamic Constraints on Loop Formation in Scale-Free Transport Networks.
2024
Physical review letters
Waszkiewicz R, Shaw JB, Lisicki M, Szymczak P
Plain English This study looked at how certain types of transportation networks form loops when influenced by moving fluids. Researchers discovered that these loops only successfully form within specific limits of fluctuating movement; there must be just the right amount of variation in flow, not too little and not too much. This finding is important because it helps us understand the conditions needed for effective transport systems, which can improve efficiency in various applications.
Who this helps: This helps engineers and city planners working on transportation systems.
Protein Complex Heterogeneity and Topology Revealed by Electron Capture Charge Reduction and Surface Induced Dissociation.
2024
ACS central science
Shaw JB, Harvey SR, Du C, Xu Z, Edgington RM +3 more
Plain English This study looked at a new method for examining protein complexes, specifically how they are structured and their variations in sugar molecules (glycosylation). Researchers found that a technique called electron capture charge reduction made it easier to analyze complex proteins like the spike protein of SARS-CoV-2 and GroEL, allowing for clearer measurements of their structure and variations. For example, they improved the ability to identify different glycoforms of the SARS-CoV-2 spike protein, which is crucial for understanding its function and has implications for vaccine development.
Who this helps: This benefits researchers and scientists studying proteins, especially those working on vaccines and therapies for diseases like COVID-19.
Enhanced Top-Down Protein Characterization with Electron Capture Dissociation and Cyclic Ion Mobility Spectrometry.
2022
Analytical chemistry
Shaw JB, Cooper-Shepherd DA, Hewitt D, Wildgoose JL, Beckman JS +2 more
Plain English This study looked at a new way to analyze proteins using advanced techniques in mass spectrometry, specifically focusing on how to better dissect larger and more complex proteins. The researchers found that by combining electron capture dissociation and a special type of ion mobility spectrometry, they could improve how much of the protein's sequence they could identify. For example, with the protein carbonic anhydrase, they achieved an impressive 89% coverage of its sequence and found 75% more unique ion products compared to older methods.
Who this helps: This benefits researchers and scientists working on protein studies in various medical and biological fields.
Improved Protein and PTM Characterization with a Practical Electron-Based Fragmentation on Q-TOF Instruments.
2021
Journal of the American Society for Mass Spectrometry
Beckman JS, Voinov VG, Hare M, Sturgeon D, Vasil'ev Y +7 more
Plain English This study focused on improving the way scientists analyze proteins using a new tool that adds electron-based techniques to existing mass spectrometers. Researchers found that this new device, which can be quickly installed, helps produce clearer results and allows for better detection of complex protein modifications, such as phosphorylation and glycosylation, which are important for understanding protein function. By making it easier to analyze larger proteins and their modifications, this advancement enhances our ability to study cellular signaling and disease processes.
Who this helps: This helps researchers and scientists studying diseases and developing new therapies.
Tunable Heteroassembly of a Plant Pseudoenzyme-Enzyme Complex.
2021
ACS chemical biology
Novikova IV, Zhou M, Du C, Parra M, Kim DN +5 more
Plain English This study examined how a specific pseudoenzyme (non-active protein) called PDX1.2 interacts with its active partner enzyme, PDX1.3, to help produce vitamin B in plants. Researchers discovered that these two proteins can form various combinations, or complexes, which are flexible in their structure. They also mapped the detailed shape of the pseudoenzyme and its interactions, revealing new insights about how these complexes work together.
Who this helps: This research benefits plant biologists and agricultural scientists working to enhance vitamin B production in crops.
Proteo-Genomic Analysis Identifies Two Major Sites of Vulnerability on Ebolavirus Glycoprotein for Neutralizing Antibodies in Convalescent Human Plasma.
2021
Frontiers in immunology
Gilchuk P, Guthals A, Bonissone SR, Shaw JB, Ilinykh PA +14 more
Plain English Researchers used a combination of single-cell gene sequencing and mass spectrometry-based proteomics to identify which Ebola-specific antibodies from memory B cells actually circulate in the blood plasma of a survivor, finding that only a fraction of the large pool of Ebola-specific B cell antibodies contributed to circulating plasma antibodies. The antibodies detected in plasma predominantly targeted two sites on the Ebola glycoprotein — the glycan cap and the base region — and many were capable of neutralizing the virus. These results show that a small subset of antibody specificities does most of the protective work in recovered Ebola patients, which has direct implications for vaccine design.
Direct Determination of Antibody Chain Pairing by Top-down and Middle-down Mass Spectrometry Using Electron Capture Dissociation and Ultraviolet Photodissociation.
2020
Analytical chemistry
Shaw JB, Liu W, Vasil Ev YV, Bracken CC, Malhan N +3 more
Plain English This study focused on improving the way scientists determine how the two different parts of monoclonal antibodies (heavy and light chains) pair together. Researchers showed they could use advanced mass spectrometry techniques to directly analyze complete antibodies, leading to faster and more accurate identification of these pairings. They successfully used new methods to break the connections between the parts, allowing for clearer analysis in a single test, which can speed up the development of new antibody treatments.
Who this helps: This helps researchers developing new antibody therapies and the patients who will benefit from these treatments.
Charge Movement and Structural Changes in the Gas-Phase Unfolding of Multimeric Protein Complexes Captured by Native Top-Down Mass Spectrometry.
2020
Analytical chemistry
Zhou M, Liu W, Shaw JB
Plain English This study investigated how the structure of protein complexes changes when exposed to certain conditions in a gas phase using a technique called native top-down mass spectrometry. Researchers found that when they increased energy during the experiment, the alcohol dehydrogenase (ADH) proteins began to unfold starting from one end, and some proteins even showed a pattern of unfolding and then refolding. This research is important because it reveals how proteins behave in different environments, which can help scientists develop better techniques for studying diseases and drug interactions.
Who this helps: This helps researchers and scientists working on drug development and protein-related diseases.
Rapid and Simultaneous Characterization of Drug Conjugation in Heavy and Light Chains of a Monoclonal Antibody Revealed by High-Resolution Ion Mobility Separations in SLIM.
2020
Analytical chemistry
Nagy G, Attah IK, Conant CR, Liu W, Garimella SVB +4 more
Plain English This study looked at how to better understand antibody-drug conjugates (ADCs), which are treatments combining antibodies with drugs to fight cancer. The researchers used a new method that allowed them to quickly and accurately measure how many drugs are attached to these antibodies. They found that their technique provided clearer data, revealing how the drugs were distributed across different parts of the antibody, which is crucial for ensuring these treatments are effective and safe.
Who this helps: This helps patients undergoing cancer treatment by improving the design of more effective and safer therapies.
Antifungal symbiotic peptide NCR044 exhibits unique structure and multifaceted mechanisms of action that confer plant protection.
2020
Proceedings of the National Academy of Sciences of the United States of America
Velivelli SLS, Czymmek KJ, Li H, Shaw JB, Buchko GW +1 more
Plain English This study focused on a specific peptide called NCR044 that protects plants from fungal diseases. Researchers discovered that NCR044 is uniquely structured and can kill harmful fungi, reducing disease symptoms significantly. For instance, when sprayed on tomato and tobacco plants, it effectively lessened gray mold symptoms caused by the fungus.
Who this helps: This benefits farmers and agricultural producers by providing a new method to protect crops from fungal infections.
Interlaboratory Study for Characterizing Monoclonal Antibodies by Top-Down and Middle-Down Mass Spectrometry.
2020
Journal of the American Society for Mass Spectrometry
Srzentić K, Fornelli L, Tsybin YO, Loo JA, Seckler H +55 more
Plain English This study looked at advanced methods for analyzing monoclonal antibodies, which are crucial for many treatments, to see if they provide better information than the standard methods currently in use. Researchers tested three different antibodies in 20 laboratories worldwide and found that the new mass spectrometry techniques can reveal important details about antibody structures and modifications that the traditional methods might miss. This matters because understanding these details can help improve the safety and effectiveness of antibody-based therapies.
Who this helps: This helps patients who rely on monoclonal antibody treatments and doctors who prescribe them.
Single-Cell Metabolic Profiling: Metabolite Formulas from Isotopic Fine Structures in Heterogeneous Plant Cell Populations.
2020
Analytical chemistry
Samarah LZ, Khattar R, Tran TH, Stopka SA, Brantner CA +9 more
Plain English This research focused on examining the different chemical processes happening in individual plant cells, especially those affected by bacteria, using a new high-tech method. They successfully measured 47 known and 11 unknown metabolites (the small molecules produced in metabolism) directly from single plant cells without altering them, giving detailed insight into the varied chemical profiles within different cells. This method is important because it allows scientists to understand how infections affect plant cells at a very granular level, which could lead to better disease management in agriculture.
Who this helps: This benefits researchers and agricultural scientists studying plant infections and health.
Siderophore profiling of co-habitating soil bacteria by ultra-high resolution mass spectrometry.
2019
Metallomics : integrated biometal science
Boiteau RM, Fansler SJ, Farris Y, Shaw JB, Koppenaal DW +2 more
Plain English This study explored how certain soil bacteria produce organic molecules that help them capture and use iron, an important nutrient, in the soils of Eastern Washington. Researchers found four main types of these iron-capturing molecules called siderophores, each coming from different bacteria and playing distinct roles in their competition for iron. The findings help us understand how these microbes interact with their environment, which is crucial for soil health and nutrient availability.
Who this helps: This benefits scientists studying soil health and farmers looking to improve crop yields.
Ambient Metabolic Profiling and Imaging of Biological Samples with Ultrahigh Molecular Resolution Using Laser Ablation Electrospray Ionization 21 Tesla FTICR Mass Spectrometry.
2019
Analytical chemistry
Stopka SA, Samarah LZ, Shaw JB, Liyu AV, Veličković D +7 more
Plain English This study looked at a new method for analyzing biological samples directly, without needing to process them extensively. The researchers combined a technique called laser ablation electrospray ionization with a powerful mass spectrometry system, achieving detailed insights into the chemical makeup of tissues. This approach allows for a quicker and more accurate identification of molecules, which is important for understanding diseases and developing new treatments.
Who this helps: This benefits patients and doctors by improving diagnostic accuracy and treatment monitoring.
LeDuc RD, Schwämmle V, Shortreed MR, Cesnik AJ, Solntsev SK +13 more
Plain English This research introduces a new way to clearly write and share information about specific protein forms, called ProForma. It uses a straightforward notation that makes it easier for scientists to communicate about these proteins and their characteristics, helping ensure that studies can be compared and repeated. By establishing this standard, the researchers aim to improve how protein information is stored and analyzed across different studies.
Who this helps: This benefits researchers and scientists studying proteins.
High Speed Intact Protein Characterization Using 4X Frequency Multiplication, Ion Trap Harmonization, and 21 Tesla FTICR-MS.
2018
Analytical chemistry
Shaw JB, Gorshkov MV, Wu Q, Paša-Tolić L
Plain English The study focused on improving the analysis of large proteins using advanced mass spectrometry techniques, making it possible to get detailed information about these molecules much faster. The researchers achieved this using a special setup that allowed them to measure large proteins like apo-transferrin (78 kDa) and monoclonal antibodies (150 kDa) in as little as 384 to 768 milliseconds, compared to much longer times previously required. This advancement is important because it can enhance the understanding of proteins, which is crucial for developing new treatments and diagnostics in medicine.
Who this helps: This benefits researchers and clinicians working on protein-related diseases and drug development.
Author Correction: Informed-Proteomics: open-source software package for top-down proteomics.
2018
Nature methods
Park J, Piehowski PD, Wilkins C, Zhou M, Mendoza J +13 more
Plain English This paper corrects a mistake in an earlier publication regarding a software called ProSightPC 3.0, which is used for studying proteins. The authors clarified that they had incorrectly stated how the software searches for proteins, ensuring that future use of the software is based on accurate information. This matters because accurate data is crucial for researchers working on understanding proteins and their functions in health and disease.
Who this helps: Researchers in the field of proteomics.
Sequencing Grade Tandem Mass Spectrometry for Top-Down Proteomics Using Hybrid Electron Capture Dissociation Methods in a Benchtop Orbitrap Mass Spectrometer.
2018
Analytical chemistry
Shaw JB, Malhan N, Vasil'ev YV, Lopez NI, Makarov A +2 more
Plain English This study looked at a new method for analyzing proteins using advanced technology that helps to more accurately identify their structures. Researchers found that their new approach achieved impressive sequence coverage; for example, they reached 95% coverage of a protein called carbonic anhydrase II, and 86% coverage for a monoclonal antibody, which is essential for understanding how these proteins function in the body. This matters because it allows scientists to get a better understanding of proteins, leading to improved drug development and targeted therapies.
Who this helps: This helps researchers and pharmaceutical companies working on new treatments.
Increasing the Separation Capacity of Intact Histone Proteoforms Chromatography Coupling Online Weak Cation Exchange-HILIC to Reversed Phase LC UVPD-HRMS.
2018
Journal of proteome research
Gargano AFG, Shaw JB, Zhou M, Wilkins CS, Fillmore TL +3 more
Plain English This study focused on a new method to analyze complex proteins called histones, which undergo many chemical modifications that can be hard to separate and identify. Researchers developed a two-step liquid chromatography system that significantly improved their ability to detect these modified proteins, allowing them to analyze hundreds of different versions from just a small sample of about 1.5 micrograms. This advancement is important because it enables a better understanding of protein functions and may lead to insights in health and disease.
Who this helps: This helps researchers and scientists working on diseases related to protein modifications.
Unambiguous identification and discovery of bacterial siderophores by direct injection 21 Tesla Fourier transform ion cyclotron resonance mass spectrometry.
2017
Metallomics : integrated biometal science
Walker LR, Tfaily MM, Shaw JB, Hess NJ, Paša-Tolić L +1 more
Plain English This study looked at how certain marine bacteria produce special molecules called siderophores to capture iron in their environments, which is important for their survival. Using a powerful new mass spectrometry method, the researchers successfully identified specific types of siderophores from two bacteria species and discovered two new ones. This matters because understanding these molecules can improve our knowledge of how ecosystems cycle nutrients and can help in various environmental applications.
Who this helps: This helps scientists and environmental researchers studying nutrient cycles in marine ecosystems.
Plain English This study looked at the tiny particles (called secondary organic aerosol, or SOA) that form when diesel and biodiesel fuels are exposed to sunlight and certain chemicals. Researchers found that these particles contain sulfur compounds, which are more abundant in dry conditions than in humid ones. This is important because it reveals that many organic compounds previously thought to come from natural sources may actually originate from human activities, specifically vehicle emissions.
Who this helps: This helps air quality researchers, public health officials, and policymakers working to improve environmental health standards.
A unique deubiquitinase that deconjugates phosphoribosyl-linked protein ubiquitination.
2017
Cell research
Qiu J, Yu K, Fei X, Liu Y, Nakayasu ES +6 more
Plain English This study looked at how a bacterial protein called SidJ interacts with other proteins modified by a unique type of ubiquitination during an infection by Legionella pneumophila. Researchers found that SidJ can reverse the modifications made by another protein, SidE, and is crucial for the bacteria's ability to infect cells, specifically by reducing the amount of proteins like Rab33b that are tagged with ubiquitin. This matters because understanding how these proteins work can help develop strategies to fight bacterial infections.
Who this helps: Patients at risk of Legionella infections and healthcare providers treating these infections.
Informed-Proteomics: open-source software package for top-down proteomics.
2017
Nature methods
Park J, Piehowski PD, Wilkins C, Zhou M, Mendoza J +13 more
Plain English This study focused on developing a new open-source software called Informed-Proteomics, designed to help analyze proteins in their complete form, which is important for understanding how proteins work after they're made. The researchers showed that this software helps identify and measure proteins better than some existing tools when applied to breast tumor samples, which revealed notable differences in protein levels. The findings matter because better tools can lead to more accurate insights into diseases and improve patient care.
Who this helps: This benefits researchers and doctors working on cancer and other diseases linked to protein changes.
Diurnal cycling of rhizosphere bacterial communities is associated with shifts in carbon metabolism.
2017
Microbiome
Staley C, Ferrieri AP, Tfaily MM, Cui Y, Chu RK +15 more
Plain English This study looked at how the daily light and dark cycles affect the communities of bacteria in the soil around plants, specifically focusing on Arabidopsis thaliana. The researchers found that these bacterial communities changed significantly between day and night, with 13% of the bacteria showing these daily fluctuations, especially in families like Burkholderiaceae and Rhodospirillaceae. This is important because it indicates that the bacteria's activity aligns with the plants' daily rhythms, which can influence how well plants grow and use carbon from the soil.
Who this helps: This benefits researchers and farmers who are trying to improve plant health and productivity.
Vacuum Ultraviolet Photodissociation and Fourier Transform-Ion Cyclotron Resonance (FT-ICR) Mass Spectrometry: Revisited.
2016
Analytical chemistry
Shaw JB, Robinson EW, Paša-Tolić L
Plain English This study looked at a technique called ultraviolet photodissociation (UVPD) used in a type of mass spectrometer to break down molecules into smaller parts for analysis. Researchers found that by adjusting the timing of the laser pulses, they could improve the breakdown of peptides and proteins, achieving better results in identifying their sequences. Efficient UVPD led to high fragmentation, which greatly enhanced the analysis quality.
Who this helps: This helps researchers and scientists in fields like biochemistry and proteomics who need to analyze complex proteins and peptides.
21 Tesla Fourier Transform Ion Cyclotron Resonance Mass Spectrometer Greatly Expands Mass Spectrometry Toolbox.
2016
Journal of the American Society for Mass Spectrometry
Shaw JB, Lin TY, Leach FE, Tolmachev AV, Tolić N +3 more
Plain English Researchers tested a powerful new mass spectrometer that operates at 21 Tesla, enabling it to identify and analyze complex molecules more accurately. They found that this device could determine the precise structure of molecules like proteins and organic matter, achieving an impressive accuracy level of 10 parts per billion. This technology improves our ability to analyze biological samples, which could lead to better understanding of diseases and more effective treatments.
Who this helps: Patients and scientists working in medical research.
High-throughput bioconjugation for enhanced 193 nm photodissociation via droplet phase initiated ion/ion chemistry using a front-end dual spray reactor.
2015
Analytical chemistry
Cotham VC, Shaw JB, Brodbelt JS
Plain English This study looked at a new method for tagging small protein fragments called peptides to make them easier to identify using a specialized technique called ultraviolet photodissociation (UVPD). Researchers found that by modifying the peptides with a specific chemical label, they could increase the efficiency of UVPD by about 20%, allowing for better analysis of the peptide sequences. This improvement matters because it can speed up the process of analyzing complex mixtures of peptides, which is important in fields like drug development and disease research.
Who this helps: This benefits researchers and scientists working on peptide analysis in biomedical research.
Ultraviolet photodissociation for characterization of whole proteins on a chromatographic time scale.
2014
Analytical chemistry
Cannon JR, Cammarata MB, Robotham SA, Cotham VC, Shaw JB +5 more
Plain English Researchers studied a method called ultraviolet photodissociation (UVPD) to identify intact proteins quickly and accurately. They found that this method was able to identify 46 unique protein sequences from E. coli ribosomes, which is an improvement over the 44 identified using a different technique called HCD. Additionally, the confidence in these identifications was significantly higher, with an average increase in accuracy of about 40 orders of magnitude, allowing them to identify proteins from 215 genes and 292 unique forms with modifications.
Who this helps: This helps researchers and scientists working on protein analysis and characterization in various fields.
The first pilot project of the consortium for top-down proteomics: a status report.
2014
Proteomics
Dang X, Scotcher J, Wu S, Chu RK, Tolić N +20 more
Plain English This study focused on identifying and analyzing a specific protein called histone H4 from human cells. Researchers from seven different labs found that they could confidently identify this protein with an impressive accuracy range and discovered 74 different forms of it, including one new modification. These findings are important because they improve our understanding of proteins, which can lead to advancements in diagnosing and treating diseases.
Who this helps: This helps researchers and clinicians working in genetics and disease treatment.
Comparison of MS/MS methods for characterization of DNA/cisplatin adducts.
2013
Journal of the American Society for Mass Spectrometry
Xu Z, Shaw JB, Brodbelt JS
Plain English This study looked at different methods for analyzing how cisplatin, a chemotherapy drug, attaches to DNA, which is important for understanding its effects on cancer treatment. The researchers compared six techniques and found that the IRMPD and UVPD methods produced the most detailed and useful results, specifically identifying the exact locations where cisplatin binds to DNA. This is important because it can help scientists understand how to optimize cancer treatments and potentially make them more effective.
Who this helps: This benefits cancer researchers and doctors involved in chemotherapy treatment.
Activated ion negative electron transfer dissociation of multiply charged peptide anions.
2013
Analytical chemistry
Shaw JB, Kaplan DA, Brodbelt JS
Plain English This study looked at a method called AI-NETD, which helps scientists better analyze proteins made up of small building blocks called peptides. Researchers found that using AI-NETD significantly improved the ability to identify and understand the structure of these peptides, with the best results showing a higher sequence coverage of nearly 40% for certain peptides. This matters because knowing the exact structure of proteins is crucial for developing targeted therapies and improving medical treatments.
Who this helps: This helps researchers and doctors working on personalized medicine and targeted therapies.
Complete protein characterization using top-down mass spectrometry and ultraviolet photodissociation.
2013
Journal of the American Chemical Society
Shaw JB, Li W, Holden DD, Zhang Y, Griep-Raming J +5 more
Plain English This study focused on a new technique using a special type of mass spectrometry to better analyze proteins, specifically how they are structured and modified. Researchers found that their method could accurately break down proteins weighing up to 29 kDa and identify specific changes in a protein linked to Alzheimer's disease and cancer. This is important because it enhances our understanding of protein functions and modifications, which can lead to better diagnostics and treatments for these diseases.
Who this helps: This benefits researchers and clinicians working on Alzheimer’s and cancer treatments.
Extending the isotopically resolved mass range of Orbitrap mass spectrometers.
2013
Analytical chemistry
Shaw JB, Brodbelt JS
Plain English This study focused on improving the ability of Orbitrap mass spectrometers to analyze large biomolecules, specifically proteins larger than 30 kDa. The researchers found that by using a combination of new techniques, they could enhance sensitivity and reduce the loss of signals when analyzing these big molecules, which allowed them to achieve a new high-mass record for measuring monoclonal immunoglobulin G. This improvement is important because it makes it easier and more accurate to study large proteins, which are crucial in many medical applications.
Who this helps: This helps scientists and researchers working with large proteins, particularly in drug development and disease research.
High-throughput database search and large-scale negative polarity liquid chromatography-tandem mass spectrometry with ultraviolet photodissociation for complex proteomic samples.
Plain English This study explored a new method for analyzing proteins in complex biological samples. Researchers developed a technique called ultraviolet photodissociation (UVPD) that helped identify a total of 3,663 peptides from one type of sample and 2,350 from another, revealing unique proteins that other methods missed—49 and 50 respectively. This advancement allows for better detection of a wider variety of proteins, which is crucial for understanding health and diseases.
Who this helps: This benefits researchers and scientists studying diseases and developing new treatments.
Concurrent automated sequencing of the glycan and peptide portions of O-linked glycopeptide anions by ultraviolet photodissociation mass spectrometry.
2013
Analytical chemistry
Madsen JA, Ko BJ, Xu H, Iwashkiw JA, Robotham SA +3 more
Plain English This study investigated a new technique for analyzing complex molecules called O-glycopeptides, which are made up of sugars and proteins. Using a method called ultraviolet photodissociation mass spectrometry, researchers successfully obtained complete information about both the protein and sugar parts of these molecules in one go, achieving 100% sequence coverage. This is important because it allows for a better understanding of how specific modifications to these molecules affect their role in diseases, particularly in identifying new aspects of how a problematic bacteria, A. baumannii, operates.
Who this helps: This benefits researchers and healthcare providers focusing on bacterial infections.
Flapping tail membrane in bats produces potentially important thrust during horizontal takeoffs and very slow flight.
2012
PloS one
Adams RA, Snode ER, Shaw JB
Plain English This study examined how bats use their tail membranes, in addition to their wings, to help them take off and fly at very low speeds. Researchers found that bats can flap their tail membranes in wide arcs, helping them generate lift and thrust; this motion is connected to their body size, with heavier bats using it more effectively. Understanding this unique adaptation is important because it reveals a new aspect of bat flight mechanics that could influence how we design better flying drones or understand animal flight in general.
Who this helps: This benefits researchers studying bat flight and engineers working on aerial vehicle design.
Tyrosine deprotonation yields abundant and selective backbone cleavage in peptide anions upon negative electron transfer dissociation and ultraviolet photodissociation.
Plain English This study looked at how a specific change in the amino acid tyrosine affects the way peptides break down when exposed to certain energy forms. Researchers found that when tyrosine is modified, it leads to significant and targeted breaks in the peptide structure—specifically, they saw a 50% increase in bond cleavage near the tyrosine residue when specific methods were used for analysis. Understanding this process matters because it helps improve how we analyze peptide structures, which is important for drug development and biological research.
Who this helps: This helps researchers and scientists working in fields like biochemistry and pharmacology.
Systematic comparison of ultraviolet photodissociation and electron transfer dissociation for peptide anion characterization.
2012
Journal of the American Society for Mass Spectrometry
Shaw JB, Madsen JA, Xu H, Brodbelt JS
Plain English This study compared two techniques—ultraviolet photodissociation (UVPD) and negative electron transfer dissociation (NETD)—to see which is better for analyzing peptides, which are small chains of proteins. Researchers found that UVPD provided much more detailed information, especially for peptides with low charge states (up to 2 charges), identifying more sequence variations. This is important because it helps scientists and doctors understand proteins better, potentially aiding in disease diagnosis or treatment development.
Who this helps: This benefits researchers and healthcare professionals studying protein-related diseases.
Han SW, Lee SW, Bahar O, Schwessinger B, Robinson MR +4 more
Plain English This study looked at a specific protein from a type of bacteria known as Xanthomonas oryzae, which causes disease in rice plants. Researchers found that this protein, called RaxST, adds a sulfate group to a specific part of another protein (tyrosine 22 of Ax21) in bacteria. This discovery is significant because it shows a new way bacteria can modify their proteins, which could affect how they interact with plant immune systems and communicate with each other.
Who this helps: This helps researchers and farmers working on plant disease management.
Ab initio calculations for industrial materials engineering: successes and challenges.
2010
Journal of physics. Condensed matter : an Institute of Physics journal
Wimmer E, Najafabadi R, Young GA, Ballard JD, Angeliu TM +8 more
Plain English This study looked at how certain elements and impurities affect the strength and behavior of materials used in industrial applications, specifically focusing on zirconium and nickel. Researchers found that computer calculations can accurately predict how these materials behave on an atomic level, which is crucial for improving their performance. However, they also identified challenges in achieving precise energy calculations and exploring large variations in material configurations, highlighting the need for more advanced computer technology and new theoretical approaches.
Who this helps: This benefits engineers and researchers working to develop stronger and more efficient materials for various industries.
Young infants can develop protective levels of neutralizing antibody after infection with respiratory syncytial virus.
2008
The Journal of infectious diseases
Shinoff JJ, O'Brien KL, Thumar B, Shaw JB, Reid R +3 more
Plain English Researchers studied how young infants develop protective antibodies after being infected with respiratory syncytial virus (RSV). They found that 66% of infants under 6 months old developed strong neutralizing antibodies that can help protect their lungs from severe disease. This is important because it shows that even infants with low existing immunity can still build a strong defense after RSV infection.
Who this helps: This benefits infants infected with RSV and their healthcare providers.
Heterogeneity of histamine H3 receptor genomic expression in the cerebral cortex of spontaneously hypertensive rat.
2007
Cellular and molecular biology (Noisy-le-Grand, France)
Shaw JB, Cai Q, Mtshali C, Myles EL, Washington B
Plain English This study looked at how the H3 receptor, a protein involved in brain signaling, behaves in the brains of two types of rats: normal rats and those with high blood pressure. The researchers found that as the high blood pressure rats aged, the number of these receptors increased significantly—by 38 to 84 fmol/mg of protein over different ages—while the variety of genetic expressions decreased. This is important because it may help explain why high blood pressure affects brain function differently than in normal conditions.
Who this helps: This helps researchers and doctors understand blood pressure-related brain changes, which could improve treatment for patients with hypertension.
Accentuated Virchow-Robin spaces in the centrum semiovale in children with autistic disorder.
2004
Journal of computer assisted tomography
Taber KH, Shaw JB, Loveland KA, Pearson DA, Lane DM +1 more
Plain English This study looked at the presence of unusual brain spaces, called Virchow-Robin spaces, in children with autism. Researchers found that about 44% of the children with autism had enlarged VR spaces, while none of the children without autism showed abnormalities. This finding is important because it suggests that these enlarged spaces may be more common in autism compared to other conditions, potentially offering insights into the brain changes associated with the disorder.
Who this helps: This helps patients with autism and their doctors by providing better understanding of brain changes linked to the condition.
WASI profile variability in a sample of psychiatric inpatients.
2003
Psychological reports
Hays JR, Shaw JB
Plain English This study looked at how much the scores from the Wechsler Abbreviated Scale of Intelligence (WASI) varied among 70 psychiatric patients. The researchers found a strong correlation (0.93) between two ways of measuring this variability, meaning they can use either method to assess differences in patients' scores. Understanding these variations is important because it helps better evaluate the cognitive abilities of psychiatric patients.
Who this helps: Patients and doctors working in psychiatric care.
Concurrent validity of the Wechsler abbreviated scale of intelligence and the Kaufman brief intelligence test among psychiatric inpatients.
2002
Psychological reports
Hays JR, Reas DL, Shaw JB
Plain English This study looked at two intelligence tests, the Wechsler Abbreviated Scale of Intelligence (WASI) and the Kaufman Brief Intelligence Test (K-BIT), in 85 patients in a psychiatric hospital. The researchers found a strong relationship between the scores from both tests (with a correlation of 0.89), but the Wechsler test provided more detailed information about different cognitive abilities. This is important because it means the Wechsler can better assess patients' strengths and weaknesses in a quicker way when longer tests can't be used.
Who this helps: This helps psychiatrists and other healthcare providers understand their patients' cognitive abilities more effectively.
Effects of brief training on application of the Global Assessment of Functioning Scale.
2002
Psychological reports
Bates LW, Lyons JA, Shaw JB
Plain English Researchers trained 31 staff members at a VA medical center on how to use the Global Assessment of Functioning (GAF) scale, which is used to evaluate a patient’s overall functioning. Before training, there were inconsistencies in how the staff rated hypothetical patients, but after the training, scores became more consistent and some lowered their ratings to match a standard measure. This is important because better training leads to more accurate assessments, which ultimately improves patient care.
Who this helps: This helps healthcare providers and improves the evaluations that influence patient treatment plans.
In vivo histamine release from brain cortex: the effects of modulating cellular and extracellular sodium and calcium channels.
2000
European journal of pharmacology
Washington B, Shaw JB, Li J, Fisher B, Gwathmey J
Plain English This research looked at how certain channels in brain cells affect the release of histamine, a important messenger in the brain, in rats. The study found that the normal level of histamine was about 0.67 picomoles in a small sample, and using a drug called diltiazem reduced the amount of histamine released by 48%. Additionally, increasing potassium levels boosted histamine release to 223% of its normal level, showing that these channels play a significant role in controlling histamine release.
Who this helps: This helps researchers and doctors understand brain chemistry better, which can lead to new treatments for conditions related to histamine levels.
Jared B Shaw Jennifer S Brodbelt Ljiljana Paša-Tolić Mowei Zhou Nikola Tolić Neil L Kelleher Joseph S Beckman Valery G Voinov David W Koppenaal James A Madsen
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Plain-English summaries generated by AI.
Not medical advice.