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. 2011 Jun 10;409(3):572-6.
doi: 10.1016/j.bbrc.2011.05.050. Epub 2011 May 15.

Solution Structure of a Human Minimembrane Protein Ost4, a Subunit of the Oligosaccharyltransferase Complex

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Solution Structure of a Human Minimembrane Protein Ost4, a Subunit of the Oligosaccharyltransferase Complex

Shovanlal Gayen et al. Biochem Biophys Res Commun. .

Abstract

Oligosaccharyltransferase (OST) is a membrane associated enzyme complex that mediates transfer of an oligosaccharide onto asparagine residue of a protein. Human Ost4 is a small membrane protein and belongs to one of the seven subunits of human OST. This study determined the solution structure of human Ost4 in solvent system using NMR spectroscopy. Ost4 was demonstrated that the residues 5-30 adopt an α-helical structure. A kink structure was observed in the transmembrane domain, which may be important for its function.

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