3ARL:
reference: Involvement of the distal Arg residue in Cl binding of midge larval haemoglobin., Kuwada T, Hasegawa T, Takagi T, Sakae T, Sato I, Shishikura F, Acta Crystallogr D Biol Crystallogr. 2011 May;67(Pt 5):488-95. Epub 2011 Apr 16. PMID: 21543852

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