1XAX:
reference: NMR structure of HI0004, a putative essential gene product from Haemophilus influenzae, and comparison with the X-ray structure of an Aquifex aeolicus homolog., Yeh DC, Parsons LM, Parsons JF, Liu F, Eisenstein E, Orban J, Protein Sci 2005 Feb;14(2):424-30. Epub 2005 Jan 04. PMID: 15632286

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