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Amino acid sequence of α-chain of hemoglobin IV from trout (Salmo irideus)

1989; Elsevier BV; Volume: 995; Issue: 3 Linguagem: Inglês

10.1016/0167-4838(89)90043-5

1878-1454

Raffaele Petruzzelli, Donatella Barra, Luana Sensi, Francesco Bossa, Maurizio Brunori,

Physiological and biochemical adaptations

The amino acid sequence of the α-chain of trout hemoglobin (Hb) IV is given, thus completing the primary structure of the hemoglobin component of trout's blood characterized by the Root effect. The trout Hb IV α-chain consists of 142 amino acid residues; comparison with the corresponding sequences from human and carp hemoglobins shows differences of 50.0 and 35.9%, respectively. A difference of 39.6% is found with the α-chain of trout Hb I, the other major hemoglobin component of trout blood, devoid of heterotropic effects.