منابع مشابه
The Metabolism of Amino Acids
It was shown by Seth and Luck (1) that the intestinal absorption of glycine and alanine by rabbits was followed by pronounced aminoacidemia. Other amino acids when administered in similar amounts provoked smaller increases in the amino nitrogen content of the blood. Glutamic acid and aspartic acid were absorbed with but a slight aminoacidemia. The question then arose as to whether these strikin...
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...
متن کاملThe 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 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 کاملThe metabolism of "surplus" amino acids.
For an adult in N balance, apart from small amounts of amino acids required for the synthesis of neurotransmitters, hormones, etc, an amount of amino acids almost equal to that absorbed from the diet can be considered to be "surplus" in that it will be catabolized. The higher diet-induced thermogenesis from protein than from carbohydrate or fat has generally been assumed to be due to increased ...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1937
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)74255-5