TY - JOUR
T1 - Interlaboratory Comparison of Hydrogen-Deuterium Exchange Mass Spectrometry Measurements of the Fab fragment of NISTmAb
AU - Hudgens, Jeffrey W
AU - Gallagher, Elyssia S
AU - Karageorgos, Ioannis
AU - Anderson, Kyle W
AU - Filliben, James J
AU - Huang, Richard Y-C
AU - Chen, Guodong
AU - Bou-Assaf, George M
AU - Espada, Alfonso
AU - Chalmers, Michael J
AU - Harguindey, Eduardo
AU - Zhang, Hui-Min
AU - Walters, Benjamin T
AU - Zhang, Jennifer
AU - Venable, John D
AU - Steckler, Caitlin
AU - Park, Inhee
AU - Brock, Ansgar
AU - Lu, Xiaojun
AU - Pandey, Ratnesh K
AU - Chandramohan, Arun
AU - Anand, Ganesh S
AU - Nirudodhi, Sasidhar N
AU - Sperry, Justin B
AU - Rouse, Jason C
AU - Carroll, James A
AU - Rand, Kasper D
AU - Leurs, Ulrike
AU - Weis, David D
AU - Al-Naqshabandi, Mohammed A
AU - Hageman, Tyler S
AU - Deredge, Daniel
AU - Wintrode, Patrick L
AU - Papanastasiou, Malvina
AU - Lambris, John D
AU - Li, Sheng
AU - Urata, Sarah
PY - 2019/6/4
Y1 - 2019/6/4
N2 - Hydrogen-deuterium exchange mass spectrometry (HDX-MS) is an established, powerful tool for investigating protein-ligand interactions, protein folding, and protein dynamics. However, HDX-MS is still an emergent tool for quality control of biopharmaceuticals and for establishing dynamic similarity between a biosimilar and an innovator therapeutic. Because industry will conduct quality control and similarity measurements over a product lifetime and in multiple locations, an understanding of HDX-MS reproducibility is critical. To determine the reproducibility of continuous-labeling, bottom-up HDX-MS measurements, the present interlaboratory comparison project evaluated deuterium uptake data from the Fab fragment of NISTmAb reference material (PDB: 5K8A) from 15 laboratories. Laboratories reported ∼89 800 centroid measurements for 430 proteolytic peptide sequences of the Fab fragment (∼78 900 centroids), giving ∼100% coverage, and ∼10 900 centroid measurements for 77 peptide sequences of the Fc fragment. Nearly half of peptide sequences are unique to the reporting laboratory, and only two sequences are reported by all laboratories. The majority of the laboratories (87%) exhibited centroid mass laboratory repeatability precisions of sLab»≤ (0.15 ± 0.01) Da (1σ). All laboratories achieved sLab»≤ 0.4 Da. For immersions of protein at THDX = (3.6 to 25) °C and for D2O exchange times of tHDX = (30 s to 4 h) the reproducibility of back-exchange corrected, deuterium uptake measurements for the 15 laboratories is σreproducibility15 Laboratories(tHDX) = (9.0 ± 0.9) % (1σ). A nine laboratory cohort that immersed samples at THDX = 25 °C exhibited reproducibility of σreproducibility25C cohort(tHDX) = (6.5 ± 0.6) % for back-exchange corrected, deuterium uptake measurements.
AB - Hydrogen-deuterium exchange mass spectrometry (HDX-MS) is an established, powerful tool for investigating protein-ligand interactions, protein folding, and protein dynamics. However, HDX-MS is still an emergent tool for quality control of biopharmaceuticals and for establishing dynamic similarity between a biosimilar and an innovator therapeutic. Because industry will conduct quality control and similarity measurements over a product lifetime and in multiple locations, an understanding of HDX-MS reproducibility is critical. To determine the reproducibility of continuous-labeling, bottom-up HDX-MS measurements, the present interlaboratory comparison project evaluated deuterium uptake data from the Fab fragment of NISTmAb reference material (PDB: 5K8A) from 15 laboratories. Laboratories reported ∼89 800 centroid measurements for 430 proteolytic peptide sequences of the Fab fragment (∼78 900 centroids), giving ∼100% coverage, and ∼10 900 centroid measurements for 77 peptide sequences of the Fc fragment. Nearly half of peptide sequences are unique to the reporting laboratory, and only two sequences are reported by all laboratories. The majority of the laboratories (87%) exhibited centroid mass laboratory repeatability precisions of sLab»≤ (0.15 ± 0.01) Da (1σ). All laboratories achieved sLab»≤ 0.4 Da. For immersions of protein at THDX = (3.6 to 25) °C and for D2O exchange times of tHDX = (30 s to 4 h) the reproducibility of back-exchange corrected, deuterium uptake measurements for the 15 laboratories is σreproducibility15 Laboratories(tHDX) = (9.0 ± 0.9) % (1σ). A nine laboratory cohort that immersed samples at THDX = 25 °C exhibited reproducibility of σreproducibility25C cohort(tHDX) = (6.5 ± 0.6) % for back-exchange corrected, deuterium uptake measurements.
U2 - 10.1021/acs.analchem.9b01100
DO - 10.1021/acs.analchem.9b01100
M3 - Journal article
C2 - 31045344
SN - 0003-2700
VL - 91
SP - 7336
EP - 7345
JO - Industrial And Engineering Chemistry Analytical Edition
JF - Industrial And Engineering Chemistry Analytical Edition
IS - 11
ER -