4C7D:
reference: Structure and activity of the Streptomyces coelicolor A3(2) beta-N-acetylhexosaminidase provides further insight into GH20 family catalysis and inhibition., Nguyen Thi N, Offen WA, Shareck F, Davies GJ, Doucet N, Biochemistry. 2014 Feb 21. PMID: 24559145

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