| Literature DB >> 3181138 |
C Smythe1, F B Caudwell, M Ferguson, P Cohen.
Abstract
The glucosylation site on glycogenin, the protein primer required for de novo glycogen synthesis, has been identified. The glucose is attached at position C1 in a glycosidic linkage with a unique tyrosine, and the sequence surrounding this residue was found to be: His-Leu-Pro-Phe-Ile-Tyr-Asn-Leu-Ser-Ser-Ile-Ser-Ile-Tyr(Glc)-Ser-Tyr-Leu -Pro- Ala-Phe-Lys. The same tyrosine residue is glycosylated whether glycogenin is isolated as a complex with the catalytic subunit of glycogen synthase, or covalently attached to glycogen. The possibility that insulin and growth factors may enhance glycogen synthesis via stimulation of the priming reaction is discussed.Entities:
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Year: 1988 PMID: 3181138 PMCID: PMC457056 DOI: 10.1002/j.1460-2075.1988.tb03121.x
Source DB: PubMed Journal: EMBO J ISSN: 0261-4189 Impact factor: 11.598