3puk

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Template:STRUCTURE 3puk

Contents

Re-refinement of the crystal structure of Munc18-3 and Syntaxin4 N-peptide complex

Template:ABSTRACT PUBMED 21193638

Function

[STXB3_MOUSE] Together with STX4 and VAMP2, may play a role in insulin-dependent movement of GLUT4 and in docking/fusion of intracellular GLUT4-containing vesicles with the cell surface in adipocytes.[1] [STX4_MOUSE] Plasma membrane t-SNARE that mediates docking of transport vesicles. Necessary for the translocation of SLC2A4 from intracellular vesicles to the plasma membrane. Together with STXB3 and VAMP2, may also play a role in docking/fusion of intracellular GLUT4-containing vesicles with the cell surface in adipocytes and in docking of synaptic vesicles at presynaptic active zones.[2] [3] [4]

About this Structure

3puk is a 4 chain structure with sequence from Lk3 transgenic mice. This structure supersedes the now removed PDB entry 2pjx. Full crystallographic information is available from OCA.

Reference

  • Hu SH, Christie MP, Saez NJ, Latham CF, Jarrott R, Lua LH, Collins BM, Martin JL. Possible roles for Munc18-1 domain 3a and Syntaxin1 N-peptide and C-terminal anchor in SNARE complex formation. Proc Natl Acad Sci U S A. 2010 Dec 30. PMID:21193638 doi:10.1073/pnas.0914906108
  1. ↑ Tellam JT, Macaulay SL, McIntosh S, Hewish DR, Ward CW, James DE. Characterization of Munc-18c and syntaxin-4 in 3T3-L1 adipocytes. Putative role in insulin-dependent movement of GLUT-4. J Biol Chem. 1997 Mar 7;272(10):6179-86. PMID:9045631
  2. ↑ Tellam JT, Macaulay SL, McIntosh S, Hewish DR, Ward CW, James DE. Characterization of Munc-18c and syntaxin-4 in 3T3-L1 adipocytes. Putative role in insulin-dependent movement of GLUT-4. J Biol Chem. 1997 Mar 7;272(10):6179-86. PMID:9045631
  3. ↑ Min J, Okada S, Kanzaki M, Elmendorf JS, Coker KJ, Ceresa BP, Syu LJ, Noda Y, Saltiel AR, Pessin JE. Synip: a novel insulin-regulated syntaxin 4-binding protein mediating GLUT4 translocation in adipocytes. Mol Cell. 1999 Jun;3(6):751-60. PMID:10394363
  4. ↑ Pooley RD, Moynihan KL, Soukoulis V, Reddy S, Francis R, Lo C, Ma LJ, Bader DM. Murine CENPF interacts with syntaxin 4 in the regulation of vesicular transport. J Cell Sci. 2008 Oct 15;121(Pt 20):3413-21. doi: 10.1242/jcs.032847. Epub 2008, Sep 30. PMID:18827011 doi:10.1242/jcs.032847

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