A dual specificity phosphatase subtype that plays a role in intracellular signal transduction by inactivating MITOGEN-ACTIVATED PROTEIN KINASES. It has specificity for EXTRACELLULAR SIGNAL-REGULATED MAP KINASES.

Synonyms: Phosphatase, H1-Related Protein-Tyrosine PTPase, VHR Dual Specificity Phosphatase 3 Vaccinia Virus H1-Related Protein Tyrosine Phosphatase Vaccinia Virus H1 Related Protein Tyrosine Phosphatase EC 3.1.3.48 Dual Specificity Protein Phosphatase 3 VHR PTPase H1-Related Protein-Tyrosine Phosphatase H1 Related Protein Tyrosine Phosphatase Protein-Tyrosine Phosphatase, H1-Related