4NK1:
reference: Crystal structure of truncated haemoglobin from an extremely thermophilic and acidophilic bacterium., Jamil F, Teh AH, Schadich E, Saito JA, Najimudin N, Alam M, J Biochem. 2014 Aug;156(2):97-106. doi: 10.1093/jb/mvu023. Epub 2014 Apr 14. PMID: 24733432

This OCA Structure page
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