3M4F:
reference: Structural insights into the acidophilic pH adaptation of a novel endo-1,4-beta-xylanase from Scytalidium acidophilum., Michaux C, Pouyez J, Mayard A, Vandurm P, Housen I, Wouters J, Biochimie. 2010 Jul 15. PMID: 20621155

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