The globulins of cotton seeds X. Structures of tryptic peptides of the 7S globulin

Summary The amino-acid sequences of the tryptic peptides of the 7S globulin of cotton seeds have been determined.An analysis of the peptides obtained has been performed and on the basis of the overlapping chymotryptic peptides the sequence of tryptic peptides in the chain of the 7S globulin has been established.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 679–682, September–October, 1977.     

The globulins of cotton seeds XIX. Chymotryptic and tryptic peptides of subunit C of the 11S globulin

Summary 1. The structures of 51 chymotryptic peptides isolated from a chymotryptic hydrolyzate of subunit C have been determined.2. The structures of 15 tryptic peptides from a tryptic hydrolyzate of subunit C have been established.3. On the basis of the structures of the peptides, the structure of the molecule of subunit C of the 11S globulin of cotton seeds has been established.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 613–621, September–October, 1978.     

The globulins of cotton seeds XII. The structure of the 7S-globulin

Summary 1. The 7S globulin of cotton seeds consists of eight polypeptide chains of two types differing by their contents of carbohydrates and of amide groups.2. On the basis of the results of a study of the amino-acid sequences of the peptides obtained by cleaving the 7S globulin with trypsin and chymotrypsin, its complete primary structure has been put forward.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 687–690, September–October, 1977.     

Investigation of the globulins of cotton seeds VIII. Chymotryptic hydrolysis of the 7S-globulin. Isolation and purification of a chymotryptic peptide

Summary From a chymotryptic hydrolyzate of the CM-7S-globulin of cotton seeds we have isolated and characterized in relation to amino-acid composition and N-terminal amino acids 65 homogeneous peptides, 38 of which contain arginine or lysine residues and are overlapping.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 560–566, July–August, 1977.