title: Absolute quantitation of proteins by acid hydrolysis combined with amino acid detection by mass spectrometry.
abstract: Amino acid analysis is among the most accurate methods for absolute quantification of proteins and peptides. Here, we combine acid hydrolysis with the addition of isotopically labeled standard amino acids and analysis by mass spectrometry for accurate and sensitive protein quantitation. Quantitation of less than 10 fmol of protein standards with errors below 10% has been demonstrated using this method.
authors: Research Institute of Influenza, Saint-Petersburg, Russia.
authors: Olga A
authors: OA
authors: Mirgorodskaya
authors: Roman
authors: R
authors: Körner
authors: Yuri P
authors: YP
authors: Kozmin
authors: Peter
authors: P
authors: Roepstorff
mesh_terms: D000143:Acids / Q000378:metabolism*; D000596:Amino Acids / Q000032:analysis* / Q000737:chemistry; D006868:Hydrolysis; D013058:Mass Spectrometry / Q000379:methods*; D011506:Proteins / Q000032:analysis* / Q000737:chemistry
chemical_list: D000143:Acids; D000596:Amino Acids; D011506:Proteins