A subclass of receptor-like protein tryosine phosphatases that contain short highly glycosylated extracellular domains and two active cytosolic protein tyrosine phosphatase domains.

Synonyms: Protein Tyrosine Phosphatase epsilon R-PTP-alpha Phosphatase Receptor Like Protein Tyrosine Phosphatases, Class IV R PTP epsilon Receptor-Like Protein Tyrosine Phosphatases, Class 4 Protein Tyrosine Phosphatase alpha Receptor-Like Protein Tyrosine Phosphatases, Class IV Phosphatase alpha, Protein-Tyrosine Phosphatase epsilon, Protein-Tyrosine Protein Tyrosine Phosphatase, Receptor Type E R-PTP-epsilon Protein-Tyrosine Phosphatase epsilon EC 3.1.3.48 Protein-Tyrosine Phosphatase alpha Protein Tyrosine Phosphatase, Receptor Type A Phosphatase, R-PTP-alpha R PTP alpha Phosphatase Receptor Like Protein Tyrosine Phosphatases, Class 4