Receptor protein tyrosine phosphatases (RPTPs) form a group of over 20 enzymes in vertebrates, each with unique ectodomains subject to potential extracellular interactions with ligands. It has recently become clear that a remarkably diverse range of ligands exist, including homophilic binders, adhesion molecules, neurotrophin receptors, and proteoglycans. Individual RPTPs can bind several ligands, and vice versa, suggesting that complex cell signaling networks exist. The identification of RPTP ligands and where they are located in tissues remains a challenge for a large number of these enzymes. Here we describe some powerful methods that have proved successful for several research groups, leading to our improved understanding of RPTP-ligand interactions and functional regulation.
CITATION STYLE
Stoker, A. W. (2016). Detection and identification of ligands for mammalian RPTP extracellular domains. In Methods in Molecular Biology (Vol. 1447, pp. 267–281). Humana Press Inc. https://doi.org/10.1007/978-1-4939-3746-2_15
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