CRYSTAL STRUCTURE OF N-TERMINAL GTP-BINDING DOMAIN OF ENGA FROM THERMUS THERMOPHILUS HB8 RIBOSOME, GTPASE, RIBOSOME-BINDING PROTEIN, STRUCTURAL GENOMICS, NPPSFA, NATIONAL PROJECT ON PROTEIN STRUCTURAL AND FUNCTIONAL ANALYSES, RIKEN STRUCTURAL GENOMICS/PROTEOMICS INITIATIVE, RSGI 2DYK