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Biol Chem Hoppe Seyler. 1988 Sep;369(9):975-84.

The primary structure of the hemoglobin from the grey-headed flying fox (Pteropus poliocephalus) and the black flying fox (P. alecto, Megachiroptera).

Author information

1
Max-Planck-Institut für Biochemie, Abteilung Proteinchemie, Martinsried bei München.

Abstract

The primary structures of the hemoglobins of two Flying Foxes of the genus Pteropus are presented. Both comprise two components: in P. alecto hemoglobin two alpha-chains at a ratio of 1:1 and two beta-chains at a ratio of 4:1 were detected. The hemoglobin of P. poliocephalus comprises one alpha-chain and two beta-chains, the latter at a ratio of 1:1. The globin chains were separated by high-performance liquid chromatography and the sequences determined by automatic liquid and gas phase Edman degradation of the chains and their tryptic peptides. Compared with human hemoglobin, the alpha-chains of P. alecto and P. poliocephalus show 18 and 19 exchanges, respectively, whereas in the beta-chains 16/17 substitutions are found in both cases. In the alpha-chains of P. alecto, one exchange involves an alpha 1/beta 1-contact. In the beta-chains of both species one heme-, one alpha 1/beta 2- and two alpha 1/beta 1-contacts are exchanged. The relevant side chains are the same in both species. The functional and systematic aspects of these findings are discussed.

PMID:
3228493
DOI:
10.1515/bchm3.1988.369.2.975
[Indexed for MEDLINE]

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