CRYSTAL STRUCTURE OF JAK2 COMPLEXED WITH A POTENT 2,8-DIARYL- QUINOXALINE INHIBITOR TRANSFERASE, SMALL MOLECULE INHIBITOR, ATP SITE KINASE INHIBITOR, NOVARTIS PRODUCT NVP-BLU040, ATP-BINDING, CHROMOSOMAL REARRANGEMENT, DISEASE MUTATION, KINASE, MEMBRANE, NUCLEOTIDE-BINDING, PHOSPHOPROTEIN, POLYMORPHISM, PROTO-ONCOGENE, SH2 DOMAIN, TYROSINE- PROTEIN KINASE 3LPB