翻訳と辞書 Words near each other ・ Oligoryzomys longicaudatus ・ Oligoryzomys magellanicus ・ Oligoryzomys microtis ・ Oligoryzomys moojeni ・ Oligoryzomys nigripes ・ Oligoryzomys rupestris ・ Oligoryzomys stramineus ・ Oligoryzomys vegetus ・ Oligoryzomys victus ・ Oligosaccharide ・ Oligosaccharide 4-alpha-D-glucosyltransferase ・ Oligosaccharide nomenclature ・ Oligosaccharide reducing-end xylanase ・ Oligosaccharide-diphosphodolichol diphosphatase ・ Oligosaccharide-transporting ATPase ・ Oligosaccharyltransferase ・ Oligosarcus ・ Oligosemia ・ Oligosoma ・ Oligosoma polychroma ・ Oligosoma roimata ・ Oligospermia ・ Oligostachyum ・ Oligostigma ・ Oligostigma chrysota ・ Oligostigma ducale ・ Oligostigma ectogonalis ・ Oligostigma flavialbalis ・ Oligostigma flavimarginale ・ Oligostigma flavipictalis Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Oligosaccharyltransferase ： ウィキペディア英語版 Oligosaccharyltransferase Oligosaccharyltransferase or OST () is a membrane protein complex that transfers a 14-sugar oligosaccharide from dolichol to nascent protein. It is a type of glycosyltransferase. The sugar Glc3Man9GlcNAc2 (where Glc=Glucose, Man=Mannose, and GlcNAc=''N''-acetylglucosamine) is attached to an asparagine (Asn) residue in the sequence Asn-X-Ser or Asn-X-Thr where X is any amino acid except proline. This sequence is called a glycosylation ''sequon.'' The reaction catalyzed by OST is the central step in the ''N''-linked glycosylation pathway. ==Location== OST is a component of the translocon in the endoplasmic reticulum (ER) membrane. A lipid-linked core-oligosaccharide is assembled at the membrane of the endoplasmic reticulum and transferred to selected asparagine residues of nascent polypeptide chains by the oligosaccharyl transferase complex. The active site of OST is located about 4 nm from the lumenal face of the ER membrane. It usually acts during translation as the nascent protein is entering the ER, but this cotranslational glycosylation is nevertheless called a posttranslational modification. A few examples have been found of OST activity after translation is complete. Current opinion is that post-translational activity may occur if the protein is poorly folded or folds slowly.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Oligosaccharyltransferase」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.