Synthetic Amphoteric Polypeptides. I-III. I. Synthesis of Copoly-(DL-glutamic acid, DL-lysine, DL-phenylalanine)
نویسندگان
چکیده
منابع مشابه
Enzymatic hydrolysis of poly-DL-lysine.
The c o n d e n s a t io n o f racemic ly s in e to p o ly -D L ly s in e produces a great number o f d is t in guishable molecules. Following merely statistical reasoning the number o f “pure peptides“ — consisting of only one sort of enantiomers — should be extremely low. The hydrolysis of polyD L -ly s in e by pronase a n d t a k a -d ia s ta s e shows that a content of about 3% “pure“ pol...
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In the structure of DL-proline, C5H9NO2, the molecules are connected via classical intermolecular N-H...O hydrogen bonds involving the amine and carboxyl groups [N...O = 2.7129 (15) and 2.8392 (16) A], and form chains along the b-axis direction and parallel to (-101). The chains are linked into sheets via weak non-classical hydrogen bonds. The conformation of the molecule and its packing are no...
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ژورنال
عنوان ژورنال: Nippon kagaku zassi
سال: 1956
ISSN: 0369-5387,2185-0917
DOI: 10.1246/nikkashi1948.77.44