OST4

Oligosaccaryltransferase

nmr structure of yeast oligosaccharyltransferase subunit ost4p
Identifiers
Symbol Ost4
Pfam PF10215
InterPro IPR018943
OPM superfamily 274
OPM protein 2lat

In molecular biology, OST4 (Dolichyl-diphosphooligosaccharide—protein glycosyltransferase subunit 4) is a subunit of the oligosaccharyltransferase complex.[1] OST4 is a very short, approximately 30 amino acids, protein found from fungi to vertebrates. It appears to be an integral membrane protein that mediates the en bloc transfer of a pre-assembled high-mannose oligosaccharide onto asparagine residues of nascent polypeptides as they enter the lumen of the rough endoplasmic reticulum.[2][3]

References

This article incorporates text from the public domain Pfam and InterPro IPR018943

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