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  • Title: Amino-acid sequence of a cooperative, dimeric myoglobin from the gastropod mollusc, Buccinum undatum L.
    Author: Wen D, Laursen RA.
    Journal: Biochim Biophys Acta; 1994 Oct 19; 1208(2):263-7. PubMed ID: 7947957.
    Abstract:
    The complete amino-acid sequence of a dimeric myoglobin from the radular mussel of the gastropod mollusc, Buccinum undatum L. has been determined. The globin, which shows cooperative binding of oxygen, contains 146 amino acids, is N-terminal aminoacetylated, and has histidine residues at position 65 and 97, corresponding to the heme-binding histidines seen in mammalian myoglobins. It shows about 75% and 50% homology, respectively, with the dimeric molluscan myoglobins from Busycon canaliculatum and Cerithidea rhizophorarum, the former of which also shows weak cooperatively, but much less similarity to other species of myoglobin and hemoglobin.
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