The Structure of the Carbohydrate Moiety of a Glycopeptide from Royal Jelly

Autor:	I. R. Siddiqui, B. Furgala
Rok vydání:	1966
Předmět:	food.ingredient Periodate Methylation Biology Carbohydrate moiety Glycopeptide chemistry.chemical_compound Hydrolysis food Biochemistry chemistry Amino acid composition Insect Science Royal jelly
Zdroj:	Journal of Apicultural Research. 5:113-120
ISSN:	2078-6913 0021-8839
DOI:	10.1080/00218839.1966.11100143
Popis:	SUMMARYA glycopeptide isolated from royal jelly contained 11·2% D-mannose. Methylation studies showed that the carbohydrate moiety had a branched structure. Hydrolysis of the methylated glycopeptide gave 2,3,4,6-tetra-O-methyl-D-mannose (1 molecular proportion); 3,4,6-tri-O-methyl-D-mannose (0·94 molecular proportion); 2,4,6,-tri-O-methyl-D-mannose (trace); 3,5-di-O-methyl-D-mannose (0·72 molecular proportion). Periodate oxidation studies supported the constitution proposed by the methylation results. The amino acid composition of the glycol-peptide is presented.
Databáze:	OpenAIRE
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