4RCA

Crystal structure of human PTPdelta and human Slitrk1 complex

4RCA の概要

• エントリーDOI: 10.2210/pdb4rca/pdb
• 分子名称: Receptor-type tyrosine-protein phosphatase delta, SLIT and NTRK-like protein 1, 2-acetamido-2-deoxy-beta-D-glucopyranose, ... (5 entities in total)
• 機能のキーワード: leucine rich-repeat, ig-like domain, synaptic adhesion, signaling protein
• 由来する生物種: Homo sapiens (human); 詳細
• タンパク質・核酸の鎖数: 2
• 化学式量合計: 63277.84

構造登録者

Kim, H.M.,Park, B.S.,Kim, D.,Lee, S.G. (登録日: 2014-09-15, 公開日: 2014-11-19, 最終更新日: 2023-09-20)

主引用文献

Um, J.W.,Kim, K.H.,Park, B.S.,Choi, Y.,Kim, D.,Kim, C.Y.,Kim, S.J.,Kim, M.,Ko, J.S.,Lee, S.G.,Choii, G.,Nam, J.,Heo, W.D.,Kim, E.,Lee, J.O.,Ko, J.,Kim, H.M.
Structural basis for LAR-RPTP/Slitrk complex-mediated synaptic adhesion.
Nat Commun, 5:5423-5423, 2014

PubMed Abstract: Synaptic adhesion molecules orchestrate synaptogenesis. The presynaptic leukocyte common antigen-related receptor protein tyrosine phosphatases (LAR-RPTPs) regulate synapse development by interacting with postsynaptic Slit- and Trk-like family proteins (Slitrks), which harbour two extracellular leucine-rich repeats (LRR1 and LRR2). Here we identify the minimal regions of the LAR-RPTPs and Slitrks, LAR-RPTPs Ig1-3 and Slitrks LRR1, for their interaction and synaptogenic function. Subsequent crystallographic and structure-guided functional analyses reveal that the splicing inserts in LAR-RPTPs are key molecular determinants for Slitrk binding and synapse formation. Moreover, structural comparison of the two Slitrk1 LRRs reveal that unique properties on the concave surface of Slitrk1 LRR1 render its specific binding to LAR-RPTPs. Finally, we demonstrate that lateral interactions between adjacent trans-synaptic LAR-RPTPs/Slitrks complexes observed in crystal lattices are critical for Slitrk1-induced lateral assembly and synaptogenic activity. Thus, we propose a model in which Slitrks mediate synaptogenic functions through direct binding to LAR-RPTPs and the subsequent lateral assembly of LAR-RPTPs/Slitrks complexes.

PubMed: 25394468
DOI: 10.1038/ncomms6423

実験手法

X-RAY DIFFRACTION (2.9908 Å)