Arctic adaptation in reindeer The energy saving of a hemoglobin

FEBS Letters

Giardina, Bruno²  Nuutinen, Matti¹  El Sherbini, Said³  Condò, Saverio G.²  Lazzarino, Giuseppe²  Bardgard, Astrid⁴  Brix, Ole⁴ 

[1]Department of Pediatrics, University of Oulu, SF-90220 Oulu 22, Finland

[2]Department of Experimental Medicine and Biochemical Sciences, II University of Rome, Tor Vergata, Via Orazio Raimondo, 00173 Rome, Italy

[3]Department of Biochemistry, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt

[4]Zoological Laboratory, University of Bergen, Allegaten 41, N-5007 Bergen, Norway

关键词: Cold adaptation;    Hemoglobin;    Oxygen binding;    (Reindeer);   

DOI  :  10.1016/0014-5793(89)81256-6

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

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.

【 授权许可】

Unknown