CRYSTAL STRUCTURE OF SCO4454, A TETR-FAMILY TRANSCRIPTIONAL REGULATOR FROM STREPTOMYCES COELICOLOR 3G7R TRANSCRIPTION REGULATOR, TETR, TRANSCRIPTIONAL REGULATOR, STREPTOMYCES COELICOLOR, ALL-HELICAL, STRUCTURAL GENOMICS, PSI-2, PROTEIN STRUCTURE INITIATIVE, MIDWEST CENTER FOR STRUCTURAL GENOMICS, MCSG, DNA-BINDING, TRANSCRIPTION, TRANSCRIPTION REGULATION