GENE REGULATION, WD40, STRUCTURAL GENOMICS, NPPSFA, NATIONAL PROJECT ON PROTEIN STRUCTURAL AND FUNCTIONAL ANALYSES, STRUCTURAL GENOMICS CONSORTIUM, SGC, ALTERNATIVE INITIATION, CHROMATIN REGULATOR, NUCLEUS, PHOSPHOPROTEIN, REPRESSOR, TRANSCRIPTION, TRANSCRIPTION REGULATION, WD REPEAT 3K27 COMPLEX STRUCTURE OF EED AND TRIMETHYLATED H3K9