2PU3:
reference: Structural adaptation of endonuclease I from the cold-adapted and halophilic bacterium Vibrio salmonicida., Altermark B, Helland R, Moe E, Willassen NP, Smalas AO, Acta Crystallogr D Biol Crystallogr. 2008 Apr;64(Pt 4):368-76. Epub 2008, Mar 19. PMID: 18391403

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