1Z47:
reference: Structure of the ATPase subunit CysA of the putative sulfate ATP-binding cassette (ABC) transporter from Alicyclobacillus acidocaldarius., Scheffel F, Demmer U, Warkentin E, Hulsmann A, Schneider E, Ermler U, FEBS Lett 2005 May 23;579(13):2953-8. Epub 2005 Apr 25. PMID: 15893314

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