LIGASE, BIOTIN BIOSYNTHESIS, DIMER, STRUCTURAL GENOMICS, NPPSFA, NATIONAL PROJECT ON PROTEIN STRUCTURAL AND FUNCTIONAL ANALYSES, RIKEN STRUCTURAL GENOMICS/PROTEOMICS INITIATIVE, RSGI 2DXT CRYSTAL STRUCTURE OF BIOTIN PROTEIN LIGASE FROM PYROCOCCUS HORIKOSHII COMPLEXED WITH ATP AND BIOTIN, MUTATION D104A