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The structure of Artemia sp. haemoglobin. Cleavage of the native molecules into functional units by limited subtilisin digestion.

By L Moens, D Geelen, M L Van Hauwaert, G Wolf, R Blust, R Witters and R Lontie

Abstract

Limited subtilisin digestion of the high-Mr haemoglobin of the crustacean Artemia sp. results in a series of fragments that are multiples of Mr 16000. Properties such as amino acid composition, iron content, absorption and c.d. spectra of the 16000-Mr functional units strongly resemble those of the intact haemoglobin molecules. The 16000-Mr functional units can bind O2 in a non-co-operative way. They thus represent the structural units from which the globin chains are built up

Topics: Research Article
Year: 1984
DOI identifier: 10.1042/bj2230861
OAI identifier: oai:pubmedcentral.nih.gov:1144373
Provided by: PubMed Central
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