Absence of water at the sixth co-ordination site in ferric Aplysia myoglobin

Giorgio M. Giacometti, Paolo Ascenzi, Maurizio Brunori, Giorgio Rigatti, Giovanni Giacometti, Martino Bolognesi

Research output: Contribution to journalArticlepeer-review

Abstract

The acidic ferric form of hemoglobin and myoglobin carries a water molecule as the sixth ligand of the iron atom. On the other hand, Aplysia met myoglobin shows a pentaco-ordinated active site below the pK of the acid-alkaline transition (7.5). This finding rationalizes some peculiar properties of Aplysia myoglobin as compared with sperm whale myoglobin.

Original languageEnglish
Pages (from-to)315-319
Number of pages5
JournalJournal of Molecular Biology
Volume151
Issue number2
DOIs
Publication statusPublished - Sep 15 1981

ASJC Scopus subject areas

  • Virology

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