Studies on Hemoglobin:VI. Amino Acid Compositions of the Fractionated Bovine Globin α and β
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1. The amino acid compositions of bovine globin α and β were determined by two different methods: (a) dinitrophenylation of amino acids, and resolution and spectrophotometry of these yellow spots; (b) direct resolution of amino acids, and assay as their trinitrophenyl derivatives. 2. Bovine globin α and β had the following composition: α-Gly 10, Ala 18, Val 10, Leu 16, Ileu 0, Pro 5, Phe 8, Tyr 3, Try 1, Ser 9, Thr 7, CysH 1, Met 1, Arg 3, His 7, Lys 10, Asp 11, Glu 7, Total 127, molecular weight 13, 700. β-Gly 12, Ala 19, Val 16, Leu 19, Ileu 0, Pro 7, Phe 8, Tyr 2, Try 2, Ser 7, Thr 8, CysH 1, Met 2, Arg 5. His 7, Lys 11, Asp 15, Glu 10 Total 150, molecular weight 16, 400. 3. By comparing the N-terminals liberated from intact and from completely acetylated bovine globin, the arginyl and lysyl residues were presumed to present as the following sequences. α-Arg-Val, -Vat, -Phe. Lys-Gly (3), -Ser, -Thr, -Ala (2), -Val, -Leu, His-Lys-OH.α β-Arg-Glu, -Ala, -Leu, -Phe. Lys-Gly (3), -Ala (3), -Val (3), -Leu (2). The author wishes to express her gratitude to Prof. K. Satake for his interest and discussion, and also to Mr. Y. Kimura, Miss M. Yoshida and Miss Y. Nagatsuka for their assistance in the experiments.
- 社団法人 日本生化学会の論文
社団法人 日本生化学会 | 論文
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