Document Detail


Presence of O-glycosidic linkage through serine residue in kappa-casein component from bovine mature milk.
MedLine Citation:
PMID:  6793704     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This paper describes the glycosylation sites of kappa-casein component P-5 from bovine mature milk. A short glycopeptide was prepared from kappa-casein component P-5 containing two carbohydrate chains by pronase P digestion, followed by gel filtration and ion exchange chromatographies. The glycopeptide obtained corresponded to residues 128-141 (Gly-Glu-Pro-Thr-Ser-Thr-Pro-Thr-Thr-Glu-Ala-Val-Glu-Ser) of kappa-casein A from the results of analyses with chemical and enzymatic procedures. The effect of alkaline borohydride treatment indicated the presence of serine as well as threonine as the binding site of carbohydrate moieties. From the facts of Edman degradation and carboxypeptidase P hydrolysis of glycopeptide treated with alkali, the carbohydrate moieties were considered to be attached to threonine residue No. 133 and serine residue No. 141.
Authors:
M Kanamori; H Doi; S Ideno; F Ibuki
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of nutritional science and vitaminology     Volume:  27     ISSN:  0301-4800     ISO Abbreviation:  J. Nutr. Sci. Vitaminol.     Publication Date:  1981  
Date Detail:
Created Date:  1981-12-21     Completed Date:  1981-12-21     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0402640     Medline TA:  J Nutr Sci Vitaminol (Tokyo)     Country:  JAPAN    
Other Details:
Languages:  eng     Pagination:  231-41     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Amino Acid Sequence
Animals
Binding Sites
Carboxypeptidases
Caseins*
Cattle
Chemical Phenomena
Chemistry
Female
Glycopeptides*
Glycosides
Milk / analysis*
Peptide Fragments
Pregnancy
Pronase
Serine*
Threonine
Chemical
Reg. No./Substance:
0/Caseins; 0/Glycopeptides; 0/Glycosides; 0/Peptide Fragments; 0/kappa-casein glycomacropeptide; 56-45-1/Serine; 72-19-5/Threonine; EC 3.4./carboxypeptidase P; EC 3.4.-/Carboxypeptidases; EC 3.4.24.-/Pronase

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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