2D9V SOLUTION STRUCTURE OF THE PH DOMAIN OF PLECKSTRIN HOMOLOGY DOMAIN-CONTAINING PROTEIN FAMILY B MEMBER 1 FROM MOUSE MEMBRANE PROTEIN, PH DOMAIN, PHRET1, STRUCTURAL GENOMICS, NPPSFA, NATIONAL PROJECT ON PROTEIN STRUCTURAL AND FUNCTIONAL ANALYSES, RIKEN STRUCTURAL GENOMICS/PROTEOMICS INITIATIVE, RSGI