3ZRQ:
reference: Crystal structure and substrate specificity of the thermophilic serine:pyruvate aminotransferase from Sulfolobus solfataricus., Sayer C, Bommer M, Isupov M, Ward J, Littlechild J, Acta Crystallogr D Biol Crystallogr. 2012 Jul;68(Pt 7):763-72. Epub 2012 Jun 15. PMID: 22751661

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