SPECTRAL CHANGES AND ALLOSTERIC TRANSITION IN TROUT HEMOGLOBIN

Bruno Giardina, F Ascoli, M. Brunori

Risultato della ricerca: Contributo in rivistaArticolo in rivista

31 Citazioni (Scopus)

Abstract

PREVIOUS results have shown that two of the haemoglobin components from trout blood, Hb trout I and Hb trout IV, have different functional properties, which may be correlated directly with their physiological role (see ref. 1 for review). Thus, Hb trout I, which displays cooperative ligand binding at all pH values, completely lacks heterotropic interactions; on the other hand, these interactions are clearly evident in Hb trout IV, for which lowering of pH, or addition of organic phosphates, produces a large decrease in oxygen affinity and in cooperativity (n drops from 2.3 at pH 8 to ~1 at pH 6)
Lingua originaleEnglish
pagine (da-a)761-762
Numero di pagine2
RivistaNature
Volume256
DOI
Stato di pubblicazionePubblicato - 1975

Keywords

  • ALLOSTERIC
  • FISH HEMOGLOBIN

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