1GMP:
reference: Complex of ribonuclease from Streptomyces aureofaciens with 2'-GMP at 1.7 A resolution., Sevcik J, Hill CP, Dauter Z, Wilson KS, Acta Crystallogr D Biol Crystallogr. 1993 Mar 1;49(Pt 2):257-71. PMID: 15299531

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