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The receptor protein tyrosine phosphatases (RPTPs) exhibit a wide repertoire of cellular signalling functions. In particular, type IIa RPTP family members have recently been highlighted as hubs for extracellular interactions in neurons, regulating neuronal extension and guidance, as well as synaptic organisation. In this review, we will discuss the recent progress of structural biology investigations into the architecture of type IIa RPTP ectodomains and their interactions with extracellular ligands. Structural insights, in combination with biophysical and cellular studies, allow us to begin to piece together molecular mechanisms for the transduction and integration of type IIa RPTP signals and to propose hypotheses for future experimental validation.

Original publication




Journal article


Semin Cell Dev Biol

Publication Date





98 - 107


Cell surface receptor, Cell surface signalling, Crystal structure, Neuronal extension, Neuronal synapse, Receptor protein tyrosine phosphatase, Animals, Humans, Models, Molecular, Neurons, Protein Structure, Tertiary, Receptor-Like Protein Tyrosine Phosphatases, Class 2, Synapses