hemerythrins

hemerythrins
Iron-containing, oxygen-binding proteins in certain invertebrates, with molecular weights approximately that of hemoglobin but differing from hemoglobin in that the molecules do not contain porphyrin groups. Oxygenated h. is oxyhemerythrin. [G. haima, blood, + G. erythros, red, + -in]

Medical dictionary. 2011.

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