Báo cáo khoa học: Unique features of the hemoglobin system of the Antarctic notothenioid fish Gobionotothen gibberifrons
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Thehemolysateofthe AntarcticteleostGobionotothen gibberifrons(family Nototheniidae) contains two hemoglo-bins (Hb 1 andHb 2). The concentration of Hb 2 (15–20% of the total hemoglobin content) is higher than that found in most cold-adapted Notothenioidei. Unlike the other Antarctic species so far examined having two hemoglobins, Hb 1 and Hb 2 do not have globin chains in common. Therefore this hemoglobin system is made of four globins (two a-and twob-chains). The complete amino-acid sequence of the two hemoglobins (Hb 1,a 1 2b 1 2 ;Hb 2,a 2 b 2 2 ) has been established. ...
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