Identification of Human Pituitary Growth Hormone Variants by Mass Spectrometry

被引：29
作者：
Kohler, Maxie [1 ]
Thomas, Andreas [1 ]
Pueschel, Klaus [2 ]
Schaenzer, Wilhelm [1 ]
Thevis, Mario [1 ]
机构：
[1] German Sport Univ Cologne, Ctr Prevent Doping Res, Inst Biochem, D-50933 Cologne, Germany
[2] Univ Hosp Hamburg Eppendorf, Dept Legal Med, Hamburg, Germany
来源：
JOURNAL OF PROTEOME RESEARCH | 2009年 / 8卷 / 02期
关键词：
2D-PAGE; orbitrap mass spectrometry; glycosylation; fragment; sport; DIMERIC FORMS; RADIOIMMUNOASSAY; GLYCOPROTEINS; PROTEINS; EXTRACTS; ISOFORMS; HEALTHY; WOMEN; HGH;
D O I：
10.1021/pr800945b
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
The heterogeneity of human endogenous growth hormone (GH) is used in doping control analysis to distinguish it from the homogeneous recombinant analogue in plasma samples. Pituitary GH variants were characterized by gel electrophoresis and mass spectrometry. Besides 22 and 20 We isoforms, fragments of 9 and 12 kDa were identified and a glycosylated 23 kDa GH variant was elucidated to bear a HexHexNac*2 NeuAc modification presumably located at Thr 60.
引用
收藏
页码：1071 / 1076
页数：6
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