Related ArticlesIdentification and quantification of oxidation products in full-length biotherapeutic antibodies by NMR spectroscopy.
Anal Chem. 2020 Jun 12;:
Authors: Hinterholzer A, Stanojlovic V, Regl C, Huber CG, Cabrele C, Schubert M
Abstract
Therapeutic proteins are an indispensable class of drugs and often therapeutics of last resort. They are sensitive to oxidation, which is of critical concern, because it can affect drug safety and efficacy. Protein oxidation, with methionine and tryptophan as the most susceptible moieties, is mainly monitored by HPLC-MS techniques. However, since several oxidation products display the same mass difference, their identification by MS is often ambiguous. Therefore, an alternative analytical method able to unambiguously identify and, ideally, also quantify oxidation species in proteins is highly desired. Here we present an NMR-based approach to monitor oxidation in full-length proteins under denaturing conditions, as demonstrated on two biotherapeutic monoclonal antibodies (mAbs). We show that methionine sulfoxide, methionine sulfone, N-formylkynurenine, kynurenine, oxindolylalanine, hydroxypyrroloindole and 5-hydroxytryptophan result in characteristic chemical shift correlations suited for their identification and quantification. We identified the five most abundant oxidation products in forced degradation studies of two full-length therapeutic mAbs and can also unambiguously distinguish oxindolylalanine from 5-hydroxytryptophan, which are undistinguishable by MS due to the same mass shift. Quantification of the abundant methionine sulfoxide by NMR and MS gave highly comparable values. These results underline the suitability of NMR spectroscopy for the identification and quantification of critical quality attributes of biotherapeutics.
PMID: 32530275 [PubMed - as supplied by publisher]
[NMR paper] Dynamic Interaction Between Membrane-Bound Full-Length Cytochrome P450 and Cytochrome b5 Observed by Solid-State NMR Spectroscopy.
Dynamic Interaction Between Membrane-Bound Full-Length Cytochrome P450 and Cytochrome b5 Observed by Solid-State NMR Spectroscopy.
Dynamic Interaction Between Membrane-Bound Full-Length Cytochrome P450 and Cytochrome b5 Observed by Solid-State NMR Spectroscopy.
Sci Rep. 2013 Aug 29;3:2538
Authors: Yamamoto K, Dürr UH, Xu J, Im SC, Waskell L, Ramamoorthy A
Abstract
Microsomal monoxygenase enzymes of the cytochrome-P450 family are found in all biological kingdoms, and play a central role in the breakdown of metabolic as well as...
nmrlearner
Journal club
0
08-30-2013 04:35 PM
[NMR paper] Full-length Vpu and human CD4(372-433) in phospholipid bilayers as seen by magic angle spinning NMR.
Full-length Vpu and human CD4(372-433) in phospholipid bilayers as seen by magic angle spinning NMR.
Related Articles Full-length Vpu and human CD4(372-433) in phospholipid bilayers as seen by magic angle spinning NMR.
Biol Chem. 2013 Jul 17;
Authors: Do HQ, Wittlich M, Glück JM, Möckel L, Willbold D, Koenig BW, Heise H
Abstract
Abstract HIV-1 Vpu and CD4(372-433), a peptide comprising the transmembrane and cytoplasmic domain of human CD4, were recombinantly expressed in Escherichia coli, uniformly labeled with 13C und 15N isotopes,...
nmrlearner
Journal club
0
07-19-2013 09:20 PM
[NMR paper] Mapping the binding site of full length HIV-1 Nef on human Lck SH3 by NMR spectroscop
Mapping the binding site of full length HIV-1 Nef on human Lck SH3 by NMR spectroscopy.
Related Articles Mapping the binding site of full length HIV-1 Nef on human Lck SH3 by NMR spectroscopy.
J Biomed Sci. 2005;12(3):451-6
Authors: Briese L, Preusser A, Willbold D
The Nef protein of human immunodeficiency virus type 1 (HIV-1) is known to directly bind to the SH3 domain of human lymphocyte specific kinase (Lck) via a proline-rich region located in the amino terminal part of Nef. To address the question whether Nef binding to Lck SH3 involves...
nmrlearner
Journal club
0
11-24-2010 11:14 PM
[NMR paper] Functional characterization and NMR spectroscopy on full-length Vpu from HIV-1 prepar
Functional characterization and NMR spectroscopy on full-length Vpu from HIV-1 prepared by total chemical synthesis.
Related Articles Functional characterization and NMR spectroscopy on full-length Vpu from HIV-1 prepared by total chemical synthesis.
J Am Chem Soc. 2004 Mar 3;126(8):2439-46
Authors: Kochendoerfer GG, Jones DH, Lee S, Oblatt-Montal M, Opella SJ, Montal M
Vpu is an 81-residue integral membrane protein encoded in the HIV-1 genome that is of considerable interest because it plays important roles in the release of virus particles...
nmrlearner
Journal club
0
11-24-2010 09:25 PM
[NMR paper] NMR assignment of the full-length ribosomal protein L11 from Thermotoga maritima.
NMR assignment of the full-length ribosomal protein L11 from Thermotoga maritima.
Related Articles NMR assignment of the full-length ribosomal protein L11 from Thermotoga maritima.
J Biomol NMR. 2003 Feb;25(2):163-4
Authors: Ilin S, Hoskins A, Schwalbe H, Wöhnert J
nmrlearner
Journal club
0
11-24-2010 09:01 PM
[NMR paper] NMR identification of epitopes of Lyme disease antigen OspA to monoclonal antibodies.
NMR identification of epitopes of Lyme disease antigen OspA to monoclonal antibodies.
Related Articles NMR identification of epitopes of Lyme disease antigen OspA to monoclonal antibodies.
J Mol Biol. 1998 Aug 7;281(1):61-7
Authors: Huang X, Yang X, Luft BJ, Koide S
Outer surface protein A (OspA) from the Lyme disease spirochete Borrelia burgdorferi has been a focus of vaccine development. We have identified epitopes of OspA to two monoclonal antibodies (mAbs) by comparing NMR chemical shifts of free OspA and those in Fab complexes....
Identification and quantification of oxidation products in full-length biotherapeutic antibodies by NMR spectroscopy.
Linear Mode
