Primary structure of myohemerythrin from the annelid Nereis diversicolor
- 8 July 1991
- journal article
- Published by Wiley in FEBS Letters
- Vol. 285 (1) , 25-27
- https://doi.org/10.1016/0014-5793(91)80716-g
Abstract
The metal‐free form of Nereis diversicolor myohemerythrin was purified from whole animal extracts by trichloroacetic acid precipitation and ion exchange chromatography. The amino acid sequence of myohemerythrin has been determined. The protein is composed of 120 residues, possesses an unblocked N‐terminus and is devoid of cysteine residues. It bears 62% sequence identity with Themiste zostericola myohemerythrin, the only other member of this subfamily sequenced to date. Within the family of hemerythrins, homology is particularly high in the segments involved in the binding of the two iron atoms and in the β‐turn‐rich N‐terminal segment.Keywords
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