1TUX:
reference: Crystal structure at 1.8 A resolution and proposed amino acid sequence of a thermostable xylanase from Thermoascus aurantiacus., Natesh R, Bhanumoorthy P, Vithayathil PJ, Sekar K, Ramakumar S, Viswamitra MA, J Mol Biol 1999 May 21;288(5):999-1012. PMID: 10329194

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