Method of identifying modulators of protein tyrosine phosphatase activity

摘要

A human protein tyrosine phosphatase (PTP) has been identified and its cDNA has been isolated. This PTP, denoted PTP-OB, has a receptor-like three dimensional structure and is present in osteoblasts. PTP-OB is involved in osteoblast differentiation, and modulators of PTP-OB activity in turn modulate osteoblast differentiation, osteoclast differentiation and osteoclast activity.