Studies on monotreme proteins. IV. Amino acid sequence of haemoglobin-IA of the echidna; a comparison of major haemoglobins from two geographical groups of echidnas

Autor: Eop Thompson, SJ Dodgson, WK Fisher
Rok vydání: 1974
Předmět:
Zdroj: Australian journal of biological sciences. 27(2)
ISSN: 0004-9417
Popis: The amino acid sequences of the ex-and fJ-chains from a major haemoglobin (Hb-IA) of an echidna geographically isolated from those animals previously studied have been determined. The fJ-chain of Hb-IA was identical in amino acid sequence with the fJ-chain in Hb-IB. The ex-chain of Hb-IA varied in four positions from that in Hb-IB, and had one more acidic group, in line with the higher electro-phoretic mobility of Hb-IA at pH 8� 5. There were no differences in 'contact site' residues in the ex-chains of the two haemoglobins.
Databáze: OpenAIRE