منابع مشابه
The Basic Amino Acids of Serum Proteins
The importance of a classification of proteins based on amino acid composition has been previously pointed out (1,2). A measure of success has been achieved only with the keratinoid tissues and the protamines (3). The protamines, moreover, seem to form a special class of proteins. This leaves the keratins as the only true proteins which have been classified on a purely chemical basis. Rlock and...
متن کاملThe Basic Amino Acids of Serum Proteins (orosins)
We have recently pointed out that even when the amount and ratio of the serum albumin and globulin are greatly changed, the proportion of the basic amino acids, yielded by hydrolysis of the total coagulable serum protein, is constant (l-3). This observation has led us to suggest (3) that instead of the protein of mammalian serum consisting of albumin and globulin, it is composed of two or more ...
متن کاملThe Basic Amino Acids of Silk Fibroin. the Determination of the Basic Amino Acids Yielded by Proteins*
Previous investigations of the basic amino acids yielded by human hair and by wool (1, 2) showed that the keratins of these closely allied tissues yield relatively high proportions of arginine but very low proportions of hi&line; both tissues also yield high proportions of cystine. Because of this the determination of the basic amino acids presented special analytical difficulties that necessit...
متن کاملDetermination of methylated basic amino acids with the amino acid analyzer. Application to total acid hydrolyzates of myelin basic proteins.
A procedure is described for the direct determination of methyl derivatives of basic amino acids in total acid hydrolyzates of proteins by the use of a Beckman amino acid analyzer operated in the high sensitivity mode with automatic integration. The conditions described permit the separation of ornithine, lysine, 5-hydroxylysine, N’-monomethyllysine, N”-dimethyllysine, histidine, N’-methylhisti...
متن کاملThe Basic Amino Acids of Casein*
Although the basic ammo acids yielded by casein have frequently been determined by indirect methods, only one analysis appears to have been carried out in recent years in which the direct isolation of the bases from a relatively large sample of the protein was attempted. This is t,he analysis of 50 gm. of casein reported by Calvery, incidental to his development of modifications of t.he dver pr...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1933
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(20)70823-9