The invention provides isolated nucleic acids molecules, designated 2150 nucleic acid molecules, which encode novel protein kinase family members. The invention also provides antisense nucleic acid molecules, recombinant expression vectors containing 2150 nucleic acid molecules, host cells into which the expression vectors have been introduced, and nonhuman transgenic animals in which a 2150 gene has been introduced or disrupted. The invention still further provides isolated 2150 proteins, fusion proteins, antigenic peptides and anti-2150 antibodies. Diagnostic and therapeutic methods utilizing compositions of the invention are also provided.