The invention provides an isolated nucleic acid molecule, designated as a kinase nucleic acid molecule, which encodes a novel protein kinase. The invention also provides antisense nucleic acid molecules, recombinant expression vectors containing kinase nucleic acid molecules, host cells into which the expression vectors have been introduced, and nonhuman transgenic animals in which a kinase gene has been introduced or disrupted. The invention still further provides isolated 14790 proteins, fusion proteins, antigenic peptides and anti-kinase antibodies. Diagnostic, screening, and therapeutic methods utilizing compositions of the invention are also provided.