1YAK:
reference: Structural characterization of the regulatory proteins TenA and TenI from Bacillus subtilis and identification of TenA as a thiaminase II., Toms AV, Haas AL, Park JH, Begley TP, Ealick SE, Biochemistry. 2005 Feb 22;44(7):2319-29. PMID: 15709744

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