1U2X:
reference: ADP-dependent 6-phosphofructokinase from Pyrococcus horikoshii OT3: structure determination and biochemical characterization of PH1645., Currie MA, Merino F, Skarina T, Wong AH, Singer A, Brown G, Savchenko A, Caniuguir A, Guixe V, Yakunin AF, Jia Z, J Biol Chem. 2009 Aug 21;284(34):22664-71. Epub 2009 Jun 24. PMID: 19553681

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