O‐Mannosylation of recombinant human insulin‐like growth factor I (IGF‐I) produced in Saccharomyces cerevisiae

FEBS Letters

Hård, Karl¹  Vliegenthart, Johannes F.G.¹  Bitter, Wilbert¹  Kamerling, Johannis P.¹ 

[1] Department of Bio-Organic Chemistry, Utrecht University, Transitorium III, PO Box 80.075, NL-3508 TB Utrecht, The Netherlands

关键词: Insulin-like growth factor I;    Recombinant glycoprotein;    Carbohydrate;    O-linked;    (Human;    Saccharomyces cerevisiae);   

DOI  :  10.1016/0014-5793(89)80442-9

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

A glycosylated form of recombinant human insulin-like growth factor I (IGF-I) expressed in Saccharomyces cerevisiae was shown to contain mannose as the only carbohydrate constituent. All oligosaccharide chains of the glycoprotein could be released by mild alkaline treatment, and separated from the protein by gel-permeation chromatography on Bio-Gel P-2. The structures of these O-linked carbohydrate chains were determined by 500-MHz ¹H-NMR spectroscopy, affording the disaccharide Manα1-2Man as the major component and the tetrasaccharide Manα1-3Manα1-2Manα1-2Man as a minor component. Reference oligosaccharides were prepared from mannoproteins released from the cell wall of S. cerevisiae X2180 (α-wild type). In addition to previously reported structures, ranging from mannose to mannotetraose, the pentasaccharide Manα1-3Manα1-3Manα1-2Manα1-2Man was identified in the cell wall mannoprotein.

【 授权许可】

Unknown