Arctic adaptation in reindeer The energy saving of a hemoglobin

Previous results [(1988) Arct. Med. Res. 47, 83–88] have shown that hemoglobin from reindeer is characterized by a low overall heat of oxygenation. This particular aspect has been investigated further in a series of precise oxygen equilibrium experiments. The results obtained show a peculiar depende...

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Bibliographic Details
Published in:FEBS Letters
Main Authors: Giardina, Bruno, Brix, Ole, Nuutinen, Matti, El Sherbini, Said, Bardgard, Astrid, Lazzarino, Giuseppe, Condò, Saverio G.
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 1989
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Online Access:http://dx.doi.org/10.1016/0014-5793(89)81256-6
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Summary:Previous results [(1988) Arct. Med. Res. 47, 83–88] have shown that hemoglobin from reindeer is characterized by a low overall heat of oxygenation. This particular aspect has been investigated further in a series of precise oxygen equilibrium experiments. The results obtained show a peculiar dependence of the temperature effect on the fractional saturation of hemoglobin with oxygen, which could be regarded as a very interesting case of molecular adaptation to extreme environmental conditions.