2gh0
From Proteopedia
Growth factor/receptor complex
Structural highlights
Function[ARTN_HUMAN] Ligand for the GFR-alpha-3-RET receptor complex but can also activate the GFR-alpha-1-RET receptor complex. Supports the survival of sensory and sympathetic peripheral neurons in culture and also supports the survival of dopaminergic neurons of the ventral mid-brain. Strong attractant of gut hematopoietic cells thus promoting the formation Peyer's patch-like structures, a major component of the gut-associated lymphoid tissue.[1] [2] [GFRA3_HUMAN] Receptor for the glial cell line-derived neurotrophic factor, ARTN (artemin). Mediates the artemin-induced autophosphorylation and activation of the RET receptor tyrosine kinase.[3] Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedArtemin (ARTN) is a member of the glial cell line-derived neurotrophic factor (GDNF) family ligands (GFLs) which regulate the development and maintenance of many neuronal populations in the mammalian nervous system. Here we report the 1.92 A crystal structure of the complex formed between ARTN and its receptor GFRalpha3, which is the initiating step in the formation of a ternary signaling complex containing the shared RET receptor. It represents a new receptor-ligand interaction mode for the TGF-beta superfamily that reveals both conserved and specificity-determining anchor points for all GFL-GFRalpha pairs. In tandem with the complex structure, cellular studies using receptor chimeras implicate dyad-symmetric composite interfaces for recruitment and dimerization of RET, leading to intracellular signaling. These studies should facilitate the functional dissection of the specific versus pleiotropic roles of this system in neurobiology, as well as its exploitation for therapeutic applications. Structure of artemin complexed with its receptor GFRalpha3: convergent recognition of glial cell line-derived neurotrophic factors.,Wang X, Baloh RH, Milbrandt J, Garcia KC Structure. 2006 Jun;14(6):1083-92. PMID:16765900[4] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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