STRUCTURAL GENOMICS, UNKNOWN FUNCTION, NIAID, SSGCID, INFECTIOUS DISEASE, ENTAMOEBA HISTOLYTICA, ANAEROBIC PARASITIC PROTOZOAN, DECODE, UW, SBRI, SEATTLE STRUCTURAL GENOMICS CENTER FOR INFECTIOUS DISEASE CRYSTAL STRUCTURE OF PUTATIVE DIPHTHINE SYNTHASE FROM ENTAMOEBA HISTOLYTICA 3I4T