Hemerythrin

Literature References: A non-heme, oxygen-carrying protein found in members of four invertebrate phyla: sipunculids, polychaetes, priapulids and brachiopods. Oxygenated form is called oxyhemerythrin. Isoln from the sipunculid, Golfingia goldii (or Phascolosoma goldii): Klotz et al., Arch. Biochem. Biophys. 68, 284 (1957). Consists of eight subunits, each containing two ferrous ions which form a complex with one molecule of oxygen: Klotz, Keresztes-Nagy, Biochemistry 2, 445, 923 (1963). Each subunit is built up from 113 amino acids. Amino acid sequence: Klippenstein et al., ibid. 7, 3868 (1968); Klippenstein, ibid. 11, 372 (1972). Structure of trimeric hemerythrin: J. L. Smith et al., Nature 303, 86 (1983). Reviews: Okamura, Klotz, "Hemerythrin" in Inorganic Biochemistry vol. 1, G. L. Eichhorn, Ed. (Elsevier, New York, 1973) pp 320-343; Klotz et al., Science 192, 335-344 (1976); J. S. Loehr, T. M. Loehr in Advances in Inorganic Biochemistry vol. 1, G. L. Eichhorn, L. G. Marzilli, Eds. (Elsevier, New York, 1979) pp 235-252.