In:
European Journal of Biochemistry, Wiley, Vol. 179, No. 3 ( 1989-02), p. 699-705
Abstract:
Antarctic fishes live at a constant temperature of −1.8°C, in an oxygen‐rich environment. In comparison with fishes that live in temperate or tropical waters, their blood contains less erythrocytes and hemoglobin. A study was initiated on the structure and function of Antarctic fish hemoglobin. The erythrocytes of the Antarctic benthic teleost Notothenia coriiceps neglecta , of the family Nototheniidae, have been shown to contain two hemoglobins, accounting for about 90% and 5% of the total content. These hemoglobins have been isolated, and obtained in crystalline form. They are tetramers and contain two pairs of globin chains. The globin chains of each hemoglobin have been purified and characterised. The two hemoglobins appear to have one of the two globin chains in common. The Root and Bohr effects have been investigated in erythrocytes, ‘stripped' hemolysates and pure hemoglobins, indicating that the functional properties are finely regulated by pH and allosteric effectors.
Type of Medium:
Online Resource
ISSN:
0014-2956
,
1432-1033
DOI:
10.1111/ejb.1989.179.issue-3
DOI:
10.1111/j.1432-1033.1989.tb14603.x
Language:
English
Publisher:
Wiley
Publication Date:
1989
detail.hit.zdb_id:
1398347-7
detail.hit.zdb_id:
2172518-4
SSG:
12
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