CRYSTAL STRUCTURE OF THE HYPOTHETICAL EGULATOR FROM SULFOLOBUS TOKODAII 7 TRANSCRIPTION, REGULATOR, ST1710, MARR, DNA-BINDING, TRANSCRIPTION REGULATION, STRUCTURAL GENOMICS, NPPSFA, NATIONAL PROJECT ON PROTEIN STRUCTURAL AND FUNCTIONAL ANALYSES, RIKEN STRUCTURAL GENOMICS/PROTEOMICS INITIATIVE, RSGI 3GEZ