2FAM:
reference: X-ray crystal structure of ferric Aplysia limacina myoglobin in different liganded states., Conti E, Moser C, Rizzi M, Mattevi A, Lionetti C, Coda A, Ascenzi P, Brunori M, Bolognesi M, J Mol Biol 1993 Oct 5;233(3):498-508. PMID: 8411158

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