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The amino acid sequence of the α‐ and β‐chains of the two hemoglobins of the Antarctic fish Notothenia coriiceps neglecta
Author(s) -
D'Avino Rossana,
Caruso Carla,
Schininà M.Eugenia,
Rutigliano Bruno,
Romano Mario,
Camardella Laura,
Bossa Francesco,
Barra Donatella,
di Prisco Guido
Publication year - 1989
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/0014-5793(89)80683-0
Subject(s) - fish <actinopterygii> , zoology , biology , sequence (biology) , genetics , fishery
The blood of the Antarctic fish Notothenia coriiceps neglecta contains two hemoglobins, Hb 1 and Hb 2, which have a β‐chain in common. We have elucidated the primary structure of the β‐chain (146 residues) and of the α‐chains (142 residues) of the two hemoglobins. The two α‐chains differ from each other by 51 residues; in comparison with globin sequences of temperate fishes, the α‐chain of Hb 1 is more similar to that of bluefin tuna than to the α‐chain of Hb 2 of the same species.