Indirect protein quantification of drug-transforming enzymes using peptide group-specific immunoaffinity enrichment and mass spectrometry.

Abstract:

:Immunoaffinity enrichment of proteotypic peptides, coupled with selected reaction monitoring, enables indirect protein quantification. However the lack of suitable antibodies limits its widespread application. We developed a method in which multi-specific antibodies are used to enrich groups of peptides, thus facilitating multiplexed quantitative protein assays. We tested this strategy in a pharmacokinetic experiment by targeting a group of homologous drug transforming proteins in human hepatocytes. Our results indicate the generic applicability of this method to any biological system.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Weiß F,Schnabel A,Planatscher H,van den Berg BH,Serschnitzki B,Nuessler AK,Thasler WE,Weiss TS,Reuss M,Stoll D,Templin MF,Joos TO,Marcus K,Poetz O

doi

10.1038/srep08759

subject

Has Abstract

pub_date

2015-03-04 00:00:00

pages

8759

issn

2045-2322

pii

srep08759

journal_volume

5

pub_type

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