Enzyme or Coenzyme

Protein Tyrosine Phosphatase, Non-Receptor Type 4

A subtype of non-receptor protein tyrosine phosphatases that is characterized by the presence of an amino-terminal FERM domain, an intervening region containing one or more PDZ domains, and a carboxyl-terminal phosphatase domain. The subtype was originally identified in a cell line derived from MEGAKARYOCYTES.