Built-in co-operativity of oxygen binding by arthropod hemocyanins

Alexander Klarman*, Ezra Daniel

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


Oxygen binding by arthropod hemocyanin from the scorpion Leirus quinquestriatus and the crabs Telphusa fluviatilis and Ocypoda cursor was studied in Ca2+, Mg2+-free solutions. The binding was found to be co-operative in all three cases. Our results and a re-examination of the literature lead us to conclude that co-operative oxygen binding is a built-in feature common to arthropod hemocyanins, distinguishing them from mollusc hemocyanins where co-operativity is conditional upon the presence of Ca2+ or Mg2+.

Original languageEnglish
Pages (from-to)257-261
Number of pages5
JournalJournal of Molecular Biology
Issue number2
StatePublished - 15 Sep 1977


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