{ "id": "epk99npfrm", "slug": "hydrogen-deuterium-exchange-mass-spectrometry", "title": "Hydrogen–deuterium exchange mass spectrometry", "updated": "2026-10-15", "topic_path": [ { "id": "life", "label": "Life and health", "api_url": "https://www.edgepedia.org/api/v1/topics/life" }, { "id": "life.biology", "label": "Biological foundations", "api_url": "https://www.edgepedia.org/api/v1/topics/life.biology" }, { "id": "life.biology.biochemistry", "label": "Biochemistry and metabolism", "api_url": "https://www.edgepedia.org/api/v1/topics/life.biology.biochemistry" }, { "id": "life.biology.biochemistry.practice", "label": "Biochemistry field and methods", "api_url": "https://www.edgepedia.org/api/v1/topics/life.biology.biochemistry.practice" }, { "id": "life.biology.biochemistry.practice.methods", "label": "Biochemical methods and techniques", "api_url": "https://www.edgepedia.org/api/v1/topics/life.biology.biochemistry.practice.methods" }, { "id": "life.biology.biochemistry.practice.methods.detect", "label": "Detection methods and analytical reactions", "api_url": "https://www.edgepedia.org/api/v1/topics/life.biology.biochemistry.practice.methods.detect" } ], "geo": [ { "id": "geo.nongeo.t1946.life.biology.biochemistry.practice.methods.detect", "label": "Non-geographic · 1946 to 2000: Detection methods and analytical reactions", "api_url": "https://www.edgepedia.org/api/v1/geo/geo.nongeo.t1946.life.biology.biochemistry.practice.methods.detect", "path": [ { "id": "geo.nongeo", "label": "Non-geographic", "api_url": "https://www.edgepedia.org/api/v1/geo/geo.nongeo" }, { "id": "geo.nongeo.t1946", "label": "Non-geographic · 1946 to 2000", "api_url": "https://www.edgepedia.org/api/v1/geo/geo.nongeo.t1946" }, { "id": "geo.nongeo.t1946.life", "label": "Life and health", "api_url": "https://www.edgepedia.org/api/v1/geo/geo.nongeo.t1946.life" }, { "id": "geo.nongeo.t1946.life.biology", "label": "Biological foundations", "api_url": "https://www.edgepedia.org/api/v1/geo/geo.nongeo.t1946.life.biology" }, { "id": "geo.nongeo.t1946.life.biology.biochemistry", "label": "Biochemistry and metabolism", "api_url": "https://www.edgepedia.org/api/v1/geo/geo.nongeo.t1946.life.biology.biochemistry" }, { "id": "geo.nongeo.t1946.life.biology.biochemistry.practice", "label": "Biochemistry field and methods", "api_url": "https://www.edgepedia.org/api/v1/geo/geo.nongeo.t1946.life.biology.biochemistry.practice" }, { "id": "geo.nongeo.t1946.life.biology.biochemistry.practice.methods", "label": "Biochemical methods and techniques", "api_url": "https://www.edgepedia.org/api/v1/geo/geo.nongeo.t1946.life.biology.biochemistry.practice.methods" }, { "id": "geo.nongeo.t1946.life.biology.biochemistry.practice.methods.detect", "label": "Detection methods and analytical reactions", "api_url": "https://www.edgepedia.org/api/v1/geo/geo.nongeo.t1946.life.biology.biochemistry.practice.methods.detect" } ] }, { "id": "geo.nongeo.t2001.life.biology", "label": "Non-geographic · 2001 to 2020: Biological foundations", "api_url": "https://www.edgepedia.org/api/v1/geo/geo.nongeo.t2001.life.biology", "path": [ { "id": "geo.nongeo", "label": "Non-geographic", "api_url": "https://www.edgepedia.org/api/v1/geo/geo.nongeo" }, { "id": "geo.nongeo.t2001", "label": "Non-geographic · 2001 to 2020", "api_url": "https://www.edgepedia.org/api/v1/geo/geo.nongeo.t2001" }, { "id": "geo.nongeo.t2001.life", "label": "Life and health", "api_url": "https://www.edgepedia.org/api/v1/geo/geo.nongeo.t2001.life" }, { "id": "geo.nongeo.t2001.life.biology", "label": "Biological foundations", "api_url": "https://www.edgepedia.org/api/v1/geo/geo.nongeo.t2001.life.biology" } ] } ], "excerpt": "Hydrogen–deuterium exchange mass spectrometry (HDX-MS) measures the exchange of protein backbone amide hydrogens with deuterium from solvent, using the resulting mass shifts to map protein structure, dynamics, and interactions.", "snippet": "Hydrogen–deuterium exchange mass spectrometry (HDX-MS) measures the exchange of protein backbone amide hydrogens with deuterium from solvent, using the resulting mass shifts to map protein structure, dynamics, and interactions.", "node": "life.biology.biochemistry.practice.methods.detect", "markdown": "# Hydrogen–deuterium exchange mass spectrometry\n\nHydrogen–deuterium exchange mass spectrometry (HDX-MS) measures the exchange of protein backbone amide hydrogens with deuterium from solvent, using the resulting mass shifts to map protein structure, dynamics, and interactions. A deuterium has a mass of approximately 2.0141 Da versus approximately 1.0080 Da for hydrogen, so each exchange event adds about 1 Da to a peptide's mass.[1](https://pmc.ncbi.nlm.nih.gov/articles/PMC10070489/) Because the liquid chromatography step washes away deuterium incorporated at side-chain positions, the measured label reports specifically on backbone amides.[2](https://pmc.ncbi.nlm.nih.gov/articles/PMC9053315/) [Experiments](https://www.edgepedia.org/experiments) are usually comparative, interrogating a protein under two or more conditions, such as with and without a ligand or antibody, to identify regions with altered dynamics; uptake is measured quantitatively from peptide isotope envelopes but is usually interpreted comparatively, and peptide-level measurements generally do not uniquely determine an atomic structure; however, quantitative residue-level decoding of uptake is now possible, for example ReX infers residue-level uptake patterns from peptide-overlap data with statistical significance, and HRaDeX computes high-resolution deuterium uptake rates.[3](https://pmc.ncbi.nlm.nih.gov/articles/PMC11570944/) • [4](https://www.nature.com/articles/s42004-025-01719-4)\n\n| Key fact | Value |\n|---|---|\n| Mass added per exchange event | ~1 Da (deuterium ~2.0141 Da vs hydrogen ~1.0080 Da)[1](https://pmc.ncbi.nlm.nih.gov/articles/PMC10070489/) |\n| Residues measurable | All except proline, which lacks a backbone amide hydrogen[1](https://pmc.ncbi.nlm.nih.gov/articles/PMC10070489/) |\n| Typical spatial resolution (bottom-up) | ~5–20 residues[3](https://pmc.ncbi.nlm.nih.gov/articles/PMC11570944/); peptic fragments generally 10–30 residues[5](https://pmc.ncbi.nlm.nih.gov/articles/PMC3992118/) |\n| Backbone amide half-lives | 5 s to 60 days, depending on protection[6](https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=918490) |\n| Protection factors | 1 (unprotected) up to \\( >10^{9} \\)[2](https://pmc.ncbi.nlm.nih.gov/articles/PMC9053315/) |\n| Quench conditions | ~pH 2.5, ~0 °C[2](https://pmc.ncbi.nlm.nih.gov/articles/PMC9053315/), with chaotrope[1](https://pmc.ncbi.nlm.nih.gov/articles/PMC10070489/) |\n| Typical back-exchange | Reports range from 15% to 60%[7](https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=934438); often ~30%, sometimes 50% or more[3](https://pmc.ncbi.nlm.nih.gov/articles/PMC11570944/) |\n\n## How it works\n\nExchange of a backbone amide hydrogen is governed by the Linderstrøm-Lang opening/closing model: a local structural element opens at rate \\( k_{\\mathrm{op}} \\), the exposed amide exchanges chemically at rate \\( k_{\\mathrm{ch}} \\), and the element recloses at rate \\( k_{\\mathrm{cl}} \\).[8](https://pmc.ncbi.nlm.nih.gov/articles/PMC3427778/) In the common EX2 regime, where \\( k_{\\mathrm{cl}} \\gg k_{\\mathrm{ch}} \\), each opening event provides an opportunity for exchange and the observed rate simplifies to \\( k_{\\mathrm{HX}} = k_{\\mathrm{ch}} \\cdot (k_{\\mathrm{op}}/k_{\\mathrm{cl}}) \\); the inverse of this ratio is the protection factor.[9](https://pmc.ncbi.nlm.nih.gov/articles/PMC7399943/) Under the native approximation and EX2 conditions, single-residue deuteration follows \\( d(t) = 1 - e^{-k_{\\mathrm{int}} \\cdot t / P} \\), where \\( P \\equiv k_{\\mathrm{cl}}/k_{\\mathrm{op}} \\) is the protection factor.[10](https://pubs.acs.org/doi/pdf/10.1021/acs.chemrev.4c00438) In the EX1 limit, where \\( k_{\\mathrm{cl}} \\) is more than 10-fold slower than \\( k_{\\mathrm{ch}} \\), the amide exchanges before it can close and \\( k_{\\mathrm{obs}} = k_{\\mathrm{op}} \\); in mass spectra this appears as a bimodal isotope distribution.[2](https://pmc.ncbi.nlm.nih.gov/articles/PMC9053315/)\n\nExchange is sensitive to hydrogen bonding and solvent accessibility, so uptake maps which regions are buried, hydrogen-bonded, or stabilized by ligands. Protection from secondary structure can reduce exchange rates by as much as \\( 10^{8} \\), and side-chain exchangeable groups exchange far faster (half-lives of ~0.01–1 ms) than backbone amides (5 s to 60 days), which is why the backbone signal dominates.[6](https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=918490) Under physiological conditions, fully exposed amide hydrogens exchange at rates of \\( 10^{1} \\) to \\( 10^{3} \\) s⁻¹.[11](https://onlinelibrary.wiley.com/doi/10.1002/pro.3790)\n\n## How it is done\n\nThe standard bottom-up workflow has five steps.[12](https://pmc.ncbi.nlm.nih.gov/articles/PMC6614034/) First, the protein is incubated in deuterated buffer, typically diluted 5–10-fold into D2O.[13](https://www.frontiersin.org/journals/analytical-science/articles/10.3389/frans.2023.1118749/full) Labeling times should span at least four orders of magnitude (for example 0.1, 1, 10, 100, and 1,000 min), with the shortest points in the range of 5–15 s.[12](https://pmc.ncbi.nlm.nih.gov/articles/PMC6614034/) Second, exchange is quenched by a shift to ~pH 2.5 and ~0 °C; because exchange is more efficiently base catalyzed than acid catalyzed, the low pH effectively freezes the label.[9](https://pmc.ncbi.nlm.nih.gov/articles/PMC7399943/) The quench solution typically also contains a chaotrope such as urea or guanidinium hydrochloride[1](https://pmc.ncbi.nlm.nih.gov/articles/PMC10070489/), and often a reducing agent such as TCEP to break disulfides.[14](https://www.mdpi.com/2075-1729/10/11/286)\n\nThird, the protein is digested with an acid-functional protease, most often pepsin, frequently immobilized on a column, generating overlapping peptides of roughly 5–30 residues.[1](https://pmc.ncbi.nlm.nih.gov/articles/PMC10070489/) Fourth, peptides are trapped, desalted, and separated by chilled reversed-phase UHPLC, with gradients typically under 15 min, and eluted into the mass spectrometer.[12](https://pmc.ncbi.nlm.nih.gov/articles/PMC6614034/) Even at 0 °C amides exchange with half-lives of 30–120 min, so peptides should enter the gas phase in under 10 min to keep back exchange low.[2](https://pmc.ncbi.nlm.nih.gov/articles/PMC9053315/) Fifth, deuterium uptake is computed from the isotopic envelopes of each peptide across time points, using software such as DECA, HX-Express, or HDsite.[14](https://www.mdpi.com/2075-1729/10/11/286) Ligand-binding experiments use ligand in excess with roughly 30 min room-temperature equilibration before labeling.[15](http://hdxms.net/wp-content/uploads/2018/11/SP_03_HDX-MS-Sample-Prep-v1.2.pdf)\n\nUptake is calculated from the centroid mass of each peptide's isotope envelope. The corrected fractional deuterium is \\( D_{\\mathrm{corr}} = (m - m_{0})/(m_{100} - m_{0}) \\), where \\( m_{0} \\) is the undeuterated centroid mass and \\( m_{100} \\) that of a maximally labeled control; the absolute exchange is \\( D_{\\mathrm{absolute}} = D_{\\mathrm{corr}} \\times N \\), with \\( N \\) the number of backbone amides in the peptide.[12](https://pmc.ncbi.nlm.nih.gov/articles/PMC6614034/) The maximally labeled control is prepared for 12–24 h at room temperature and pH 2.5–4 with 6 M guanidinium deuteriochloride or 6 M urea.[12](https://pmc.ncbi.nlm.nih.gov/articles/PMC6614034/) Back exchange during analysis is expected to be about 1% of carried amide label per minute, giving final label recovery of roughly 70–80%.[8](https://pmc.ncbi.nlm.nih.gov/articles/PMC3427778/) The widely used \\( (m - m_{0})/(m_{100} - m_{0}) \\) correction has been criticized because it can distort HDX kinetic profiles, making back exchange an under-appreciated problem.[3](https://pmc.ncbi.nlm.nih.gov/articles/PMC11570944/)\n\n## Origin\n\nProtein hydrogen exchange was quantified early on with a density gradient column sensitive to about one part in a million; Englander's historical account notes the early densitometry data were partly incorrect due to an artifact, yet the dynamic mechanisms and equations written then are still used.[8](https://pmc.ncbi.nlm.nih.gov/articles/PMC3427778/) The theoretical framework was consolidated in the review by [S. Walter Englander](https://www.edgepedia.org/s-walter-englander) and [Neville R. Kallenbach](https://www.edgepedia.org/neville-r-kallenbach) in Quarterly Reviews of Biophysics in 1983.[16](https://doi.org/10.1017/s0033583500005217) From the 1960s, tritium exchange with gel-filtration separation dominated the field for roughly 20 years and allowed proteolysis to localize exchange to the peptide level.[8](https://pmc.ncbi.nlm.nih.gov/articles/PMC3427778/)\n\nThe proteolytic fragmentation route to higher structural resolution was reported by Joseph J. Rosa and [Frederic M. Richards](https://www.edgepedia.org/frederic-m-richards) in 1979 in the Journal of Molecular Biology, applied to ribonuclease S peptide,[17](https://doi.org/10.1016/0022-2836%2879%2990400-5) and the fragment separation method by Joan J. Englander, Jose R. Rogero, and S. Walter Englander in 1985 in Analytical Biochemistry.[18](https://doi.org/10.1016/0003-2697%2885%2990033-8) Mass spectrometric measurement of amide exchange as a tool for protein structure elucidation was reported by Zhongqi Zhang and David L. Smith in 1993 in Protein Science,[19](https://doi.org/10.1002/pro.5560020404) applied to rabbit muscle aldolase by Zhang, Carol Beth Post, and Smith in 1996 in [Biochemistry](https://www.edgepedia.org/biochemistry),[20](https://doi.org/10.1021/bi952227q) and extended to non-covalent structure by Smith, Yuzhong Deng, and Zhang in 1997 in the Journal of Mass Spectrometry.[21](https://doi.org/10.1002/%28sici%291096-9888%28199702%2932:2<135::aid-jms486>3.0.co;2-m) Protein-folding studies by mass spectrometry were reported by Andrew Miranker and colleagues in 1996 in The FASEB Journal.[22](https://doi.org/10.1096/fasebj.10.1.8566553) The basic pulse-label, quench, digest, and LC-MS workflow remains recognizable, while instrumentation, labeling timescales, fragmentation methods, and data analysis have advanced substantially.[3](https://pmc.ncbi.nlm.nih.gov/articles/PMC11570944/) An automated platform with solid-phase proteolysis, automated liquid handling, and integrated data reduction, achieving nearly 10-fold higher sample throughput than manual methods, was reported by Yoshitomo Hamuro and colleagues in 2003.[23](https://pmc.ncbi.nlm.nih.gov/articles/PMC2279949/)\n\n## Variants\n\n**Bottom-up** HDX-MS digests the protein after quench and resolves uptake at peptide level. Published estimates of typical spatial resolution differ: around 5 to 20 residues,[3](https://pmc.ncbi.nlm.nih.gov/articles/PMC11570944/) generally 10–30 residues for peptic fragments,[5](https://pmc.ncbi.nlm.nih.gov/articles/PMC3992118/) and averaging 10–15 residues in the cryo-EM comparison literature.[24](https://pmc.ncbi.nlm.nih.gov/articles/PMC7502526/) Overlapping peptides from pepsin's nonspecific cleavage can improve resolution within these limits.[5](https://pmc.ncbi.nlm.nih.gov/articles/PMC3992118/)\n\n**Top-down and electron-based fragmentation.** CID fragmentation scrambles deuterium, randomizing the labeling pattern, so it cannot localize exchange to single residues.[1](https://pmc.ncbi.nlm.nih.gov/articles/PMC10070489/) Electron-based methods avoid this: ETD measurement of deuterium incorporation into selectively labeled peptides at single-residue resolution was reported by Martin Zehl and colleagues in 2008 in the [Journal of the American Chemical Society](https://www.edgepedia.org/journal-of-the-american-chemical-society),[25](https://doi.org/10.1021/ja805573h) and single-residue HDX by ETD-MS by Kasper D. Rand and colleagues in 2009 in Analytical Chemistry.[26](https://doi.org/10.1021/ac9008447) ECD of electrosprayed protein ions for spatially resolved HDX was reported by Jingxi Pan and colleagues in 2008 in the Journal of the American Chemical Society,[27](https://doi.org/10.1021/ja802871c) building on the finding by Kasper D. Rand and colleagues the same year that ECD proceeds with a low degree of intramolecular amide hydrogen migration.[28](https://doi.org/10.1021/ja076448i) Automated ETD HDX at single-amide resolution was reported by Rachelle R. Landgraf, Michael J. Chalmers, and Patrick R. Griffin in 2011 in the Journal of the American Society for Mass Spectrometry.[29](https://doi.org/10.1007/s13361-011-0298-2) These approaches are not widely adopted because collisional heating causes scrambling and fragmentation efficiencies are low.[3](https://pmc.ncbi.nlm.nih.gov/articles/PMC11570944/)\n\n**Middle-down** occupies an intermediate position: intact IgG1 (Herceptin, 150 kDa) digested with pepsin for 1 min at pH 2.5 and 0 °C yielded three fragments of 12–25 kDa, and online ETD after subzero HPLC gave average resolutions of about 1–2.3 residues with single-residue resolution in many regions, covering 96.8% of the antibody, with back exchange reduced to ~2%.[30](https://pubs.rsc.org/en/content/articlepdf/2016/sc/c5sc03420e) Site-specific differential HDX for ligand binding has also been demonstrated with zero-scrambling, high-efficiency [electron-activated dissociation](https://www.edgepedia.org/electron-activated-dissociation) (EAD) on a ZenoTOF 7600; applied to WDR5 binding DS0413, it showed that a peptide-level uptake decrease in residues 250–263 is dominated by a single backbone amide, C261.[31](https://pmc.ncbi.nlm.nih.gov/articles/PMC12492393/) **Millisecond labeling** extends the observable timescale: microfluidic devices with adjustable capillary mixers achieve labeling times from 80 ms to 10 s,[9](https://pmc.ncbi.nlm.nih.gov/articles/PMC7399943/) and the fully automated ms2min system achieved reproducible labeling from 50 ms to 300 s with 1 ms mixing resolution, where conventional methods start at several seconds.[32](https://doi.org/10.1021/acs.analchem.2c05310)\n\nOn the data side, AutoHX uses data-independent acquisition to collect deuterated fragment ions alongside precursors, raising sequence redundancy from 4.6 (MS1 only) to 49.7 (MS1 plus MS2), decreasing deuteration uncertainty by 41%, and processing six samples in 10 min on a single desktop computer.[33](https://doi.org/10.1038/s41467-024-46610-3) For higher-resolution uptake rates, HRaDeX fits expanded ZS-model trajectories of superimposed peptides, reaching an average root-mean-square error of 7.15% across eight benchmark datasets, though it cannot extrapolate for regions covered by only one peptide. A multilayer-perceptron deep learning model predicts back and forward exchange to within 5% of experimentally controlled data without control acquisitions, improving calculated exchange kinetics by more than 35% and restoring native-fold classification of α-lactalbumin from 69% to 95%.[34](https://pubs.acs.org/doi/10.1021/jasms.3c00285)\n\n## Applications\n\n**Epitope mapping** was the first major application: HDX-MS can be used for epitope mapping.[13](https://www.frontiersin.org/journals/analytical-science/articles/10.3389/frans.2023.1118749/full) In TNFα complexes with three monoclonal antibodies, 76% of peptides with significant deuterium-uptake decreases included epitope residues; combining peptide-level HDX-MS with residue-level DEPC covalent labeling helps distinguish binding-site protection from binding-induced stabilization.[35](https://pmc.ncbi.nlm.nih.gov/articles/PMC9631465/)\n\n**Drug and ligand binding** is widely studied. Residue-level energetic analysis with PIGEON-FEATHER explained why two competitive inhibitors inhibit E. coli dihydrofolate reductase but only one inhibits the human ortholog.[36](https://www.nature.com/articles/s41589-025-02049-1) **Lysate screening** is now feasible: a platform combining protein thermal depletion at 60 °C with subzero long-gradient UPLC identified the acetazolamide–carbonic anhydrase II interaction site within E. coli cell lysate.[37](https://pubs.acs.org/doi/full/10.1021/acs.analchem.2c04266) The technique has also illuminated protein-protein interfaces, folding, allostery, covalent modification, and enzyme function.[38](https://www.annualreviews.org/content/journals/10.1146/annurev.biophys.32.110601.142417)\n\n## Limitations and alternatives\n\n**Back exchange** is the dominant quantitative limitation: standard systems digesting and separating at pH 2.7 and 0 °C can lose more than 30% of the label within 15 min of injection, with reported peptide values of 15–60%.[7](https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=934438) Mitigation uses rapid chromatography, ~0 °C, ~pH 2, and a maximally labeled control for correction.[1](https://pmc.ncbi.nlm.nih.gov/articles/PMC10070489/) **Scrambling** under CID randomizes deuterium within peptides; a properly tuned instrument shows little to no scrambling, and electron-based fragmentation avoids it.[14](https://www.mdpi.com/2075-1729/10/11/286) **Interpretive pitfalls** include bimodal spectra that do not indicate EX1 kinetics but instead sample impurity, degradation, unsaturated ligand binding, or carryover,[11](https://onlinelibrary.wiley.com/doi/10.1002/pro.3790) and aggregation, which lowers sequence coverage by reducing proteolysis efficiency.[11](https://onlinelibrary.wiley.com/doi/10.1002/pro.3790) [Histidine](https://www.edgepedia.org/histidine) side chains can incorporate deuterium at imidazole c-2 if labeling is done above pH 5, over 24 h, or above 25 °C.[12](https://pmc.ncbi.nlm.nih.gov/articles/PMC6614034/) The readout is comparative and qualitative rather than atomistic.[3](https://pmc.ncbi.nlm.nih.gov/articles/PMC11570944/)\n\nCompared with **NMR**, HDX-MS offers higher sensitivity, wider sequence coverage, larger-protein applicability,[38](https://www.annualreviews.org/content/journals/10.1146/annurev.biophys.32.110601.142417) and no restriction to small proteins, whereas NMR is generally limited to about 30 kDa and needs at least 100 µM protein but routinely delivers single-residue rates.[5](https://pmc.ncbi.nlm.nih.gov/articles/PMC3992118/) Compared with **cryo-EM**, HDX-MS cannot conclude much about overall shape or stoichiometry but is very sensitive to conformational changes and provides data on flexible regions unresolved in cryo-EM maps; the two are complementary.[24](https://pmc.ncbi.nlm.nih.gov/articles/PMC7502526/) Covalent-labeling MS with DEPC adds residue-level information that disambiguates HDX protection patterns.[35](https://pmc.ncbi.nlm.nih.gov/articles/PMC9631465/)\n\n## References\n\n1. [Fundamentals of HDX-MS (2023 review)](https://pmc.ncbi.nlm.nih.gov/articles/PMC10070489/)\n2. [Advances in Hydrogen/Deuterium Exchange Mass Spectrometry and the Pursuit of Challenging Biological Systems (Chemical Reviews, 2022)](https://pmc.ncbi.nlm.nih.gov/articles/PMC9053315/)\n3. [Hydrogen/Deuterium Exchange Mass Spectrometry: Fundamentals, Limitations, and Opportunities (Mol Cell Proteomics, 2024; Konermann & Scrosati; merged with publisher copy sciencedirect.com/science/article/pii/S1535947624001439)](https://pmc.ncbi.nlm.nih.gov/articles/PMC11570944/)\n4. [Inferring residue level hydrogen deuterium exchange with ReX | Communications Chemistry](https://www.nature.com/articles/s42004-025-01719-4)\n5. [Analyzing Protein Dynamics Using Hydrogen Exchange Mass Spectrometry (JoVE protocol, 2013)](https://pmc.ncbi.nlm.nih.gov/articles/PMC3992118/)\n6. [Protein–ligand interface mapping by continuous-labeling proteolytic fragmentation HDX-MS (NIST book chapter)](https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=918490)\n7. [Subzero-temperature dual-enzyme HDX-MS instrument (NIST publication)](https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=934438)\n8. [Hydrogen Exchange and Mass Spectrometry: A Historical Perspective (Englander)](https://pmc.ncbi.nlm.nih.gov/articles/PMC3427778/)\n9. [HDX-MS: An Analytical Tool to Capture Protein Motion in Action](https://pmc.ncbi.nlm.nih.gov/articles/PMC7399943/)\n10. [Computational Tools for Hydrogen–Deuterium Exchange Mass Spectrometry Data Analysis (Chemical Reviews, 2024/2025)](https://pubs.acs.org/doi/pdf/10.1021/acs.chemrev.4c00438)\n11. [Bridging protein structure, dynamics, and function using HDX-MS (Protein Science, 2019)](https://onlinelibrary.wiley.com/doi/10.1002/pro.3790)\n12. [Recommendations for performing, interpreting and reporting hydrogen deuterium exchange mass spectrometry (HDX-MS) experiments (Nature Methods, 2019)](https://pmc.ncbi.nlm.nih.gov/articles/PMC6614034/)\n13. [Hydrogen deuterium exchange and other mass spectrometry-based approaches for epitope mapping (Frontiers in Analytical Science, 2023)](https://www.frontiersin.org/journals/analytical-science/articles/10.3389/frans.2023.1118749/full)\n14. [Hydrogen-Deuterium Exchange Mass Spectrometry: A Novel Structural Biology Approach... (Life, MDPI, 2020)](https://www.mdpi.com/2075-1729/10/11/286)\n15. [SP_03 HDX-MS Sample Prep protocol (hdxms.net)](http://hdxms.net/wp-content/uploads/2018/11/SP_03_HDX-MS-Sample-Prep-v1.2.pdf)\n16. [S. Walter Englander, Neville R. Kallenbach (1983). Hydrogen exchange and structural dynamics of proteins and nucleic acids. Quarterly Reviews of Biophysics.](https://doi.org/10.1017/s0033583500005217)\n17. [An experimental procedure for increasing the structural resolution of chemical hydrogen-exchange measurements on proteins: Application to ribonuclease S peptide (Journal of Molecular Biology, 1979)](https://doi.org/10.1016/0022-2836%2879%2990400-5)\n18. [Protein hydrogen exchange studied by the fragment separation method (Analytical Biochemistry, 1985)](https://doi.org/10.1016/0003-2697%2885%2990033-8)\n19. [Zhongqi Zhang, David L. Smith (1993). Determination of amide hydrogen exchange by mass spectrometry: A new tool for protein structure elucidation. Protein Science.](https://doi.org/10.1002/pro.5560020404)\n20. [Zhongqi Zhang, Carol Beth Post, David. L. Smith (1996). Amide Hydrogen Exchange Determined by Mass Spectrometry: Application to Rabbit Muscle Aldolase. Biochemistry.](https://doi.org/10.1021/bi952227q)\n21. [Probing the Non-covalent Structure of Proteins by Amide Hydrogen Exchange and Mass Spectrometry (Journal of Mass Spectrometry, 1997)](https://doi.org/10.1002/%28sici%291096-9888%28199702%2932:2<135::aid-jms486>3.0.co;2-m)\n22. [Andrew Miranker and colleagues (1996). Investigation of protein folding by mass spectrometry. The FASEB Journal.](https://doi.org/10.1096/fasebj.10.1.8566553)\n23. [Rapid Analysis of Protein Structure and Dynamics by Hydrogen/Deuterium Exchange Mass Spectrometry (Hamuro et al., J Am Soc Mass Spectrom, 2003)](https://pmc.ncbi.nlm.nih.gov/articles/PMC2279949/)\n24. [Complementarity of HDX-MS and Cryo-Electron Microscopy (2020)](https://pmc.ncbi.nlm.nih.gov/articles/PMC7502526/)\n25. [Martin Zehl and colleagues (2008). Electron Transfer Dissociation Facilitates the Measurement of Deuterium Incorporation into Selectively Labeled Peptides with Single Residue Resolution. Journal of the American Chemical Society.](https://doi.org/10.1021/ja805573h)\n26. [Kasper D. Rand and colleagues (2009). Protein Hydrogen Exchange Measured at Single-Residue Resolution by Electron Transfer Dissociation Mass Spectrometry. Analytical Chemistry.](https://doi.org/10.1021/ac9008447)\n27. [Jingxi Pan and colleagues (2008). Electron Capture Dissociation of Electrosprayed Protein Ions for Spatially Resolved Hydrogen Exchange Measurements. Journal of the American Chemical Society.](https://doi.org/10.1021/ja802871c)\n28. [Kasper D. Rand and colleagues (2008). Electron Capture Dissociation Proceeds with a Low Degree of Intramolecular Migration of Peptide Amide Hydrogens. Journal of the American Chemical Society.](https://doi.org/10.1021/ja076448i)\n29. [Rachelle R. Landgraf, Michael J. Chalmers, Patrick R. Griffin (2011). Automated Hydrogen/Deuterium Exchange Electron Transfer Dissociation High Resolution Mass Spectrometry Measured at Single-Amide Resolution. Journal of the American Society for Mass Spectrometry.](https://doi.org/10.1007/s13361-011-0298-2)\n30. [Higher-order structural interrogation of antibodies using middle-down hydrogen/deuterium exchange mass spectrometry (Chemical Science, 2016)](https://pubs.rsc.org/en/content/articlepdf/2016/sc/c5sc03420e)\n31. [Site-Specific Hydrogen Deuterium Exchange Difference Mass Spectrometry Measurements for Ligand Binding (Analytical Chemistry)](https://pmc.ncbi.nlm.nih.gov/articles/PMC12492393/)\n32. [Monika Kish and colleagues (2023). Online Fully Automated System for Hydrogen/Deuterium-Exchange Mass Spectrometry with Millisecond Time Resolution. Analytical Chemistry.](https://doi.org/10.1021/acs.analchem.2c05310)\n33. [Frantisek Filandr and colleagues (2024). Automating data analysis for hydrogen/deuterium exchange mass spectrometry using data-independent acquisition methodology. Nature Communications.](https://doi.org/10.1038/s41467-024-46610-3)\n34. [Deep Learning Enables Automatic Correction of Experimental HDX-MS Data with Applications in Protein Modeling (JASMS, 2023/2024)](https://pubs.acs.org/doi/10.1021/jasms.3c00285)\n35. [Complementary Structural Information for Antibody-Antigen Complexes from HDX and Covalent Labeling MS](https://pmc.ncbi.nlm.nih.gov/articles/PMC9631465/)\n36. [Site-resolved energetic information from HX–MS experiments (PIGEON-FEATHER, Nature Chemical Biology, 2025)](https://www.nature.com/articles/s41589-025-02049-1)\n37. [Elucidating Protein–Ligand Interactions in Cell Lysates Using High-Throughput HDX-MS with Integrated Protein Thermal Depletion (Analytical Chemistry)](https://pubs.acs.org/doi/full/10.1021/acs.analchem.2c04266)\n38. [Protein Analysis by Hydrogen Exchange Mass Spectrometry (Annual Review of Biophysics, 2003, Hoofnagle, Resing, Ahn)](https://www.annualreviews.org/content/journals/10.1146/annurev.biophys.32.110601.142417)\n\n---\n*Topic: Encyclopedia › Life and health › Biological foundations › Biochemistry and metabolism › Biochemistry field and methods › Biochemical methods and techniques › Detection methods and analytical reactions*\n\n*Initially written Sep 29, 2026 · Edited: Oct 15, 2026*\n\n*Copyright 2026 EdgeChat AI, a subsidiary of Biostate AI.*\n\nLicense: Edgepedia Community License 1.0, https://www.edgepedia.org/edgepedia/license\n", "same_as": [], "url": "https://www.edgepedia.org/hydrogen-deuterium-exchange-mass-spectrometry", "markdown_url": "https://www.edgepedia.org/hydrogen-deuterium-exchange-mass-spectrometry.md", "license": { "name": "Edgepedia Community License 1.0", "url": "https://www.edgepedia.org/edgepedia/license", "summary": "Free with credit, commercial use included. AI training is open to everyone. For other uses, organizations over USD 100M in revenue or 100M monthly users license separately.", "spdx": "LicenseRef-Edgepedia-Community-1.0" }, "credit": "\"Hydrogen–deuterium exchange mass spectrometry\", Edgepedia (EdgeChat), https://www.edgepedia.org/hydrogen-deuterium-exchange-mass-spectrometry. Edgepedia Community License 1.0.", "credit_md": "\"[Hydrogen–deuterium exchange mass spectrometry](https://www.edgepedia.org/hydrogen-deuterium-exchange-mass-spectrometry)\", Edgepedia (EdgeChat), [https://www.edgepedia.org/hydrogen-deuterium-exchange-mass-spectrometry](https://www.edgepedia.org/hydrogen-deuterium-exchange-mass-spectrometry). [Edgepedia Community License 1.0](https://www.edgepedia.org/edgepedia/license).", "credit_html": "\"Hydrogen–deuterium exchange mass spectrometry\", Edgepedia (EdgeChat), https://www.edgepedia.org/hydrogen-deuterium-exchange-mass-spectrometry. Edgepedia Community License 1.0.", "speakable": "Hydrogen–deuterium exchange mass spectrometry measures the exchange of protein backbone amide hydrogens with deuterium from solvent, using the resulting mass shifts to map protein structure, dynamics, and interactions." }