6bcj: Difference between revisions

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'''Unreleased structure'''


The entry 6bcj is ON HOLD until Paper Publication
==cryo-EM structure of TRPM4 in apo state with short coiled coil at 3.1 angstrom resolution==
 
<StructureSection load='6bcj' size='340' side='right' caption='[[6bcj]], [[Resolution|resolution]] 3.14&Aring;' scene=''>
Authors:  
== Structural highlights ==
 
<table><tr><td colspan='2'>[[6bcj]] is a 4 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6BCJ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6BCJ FirstGlance]. <br>
Description:  
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=NA:SODIUM+ION'>NA</scene></td></tr>
[[Category: Unreleased Structures]]
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[6bcl|6bcl]], [[6bco|6bco]], [[6bcq|6bcq]]</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6bcj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6bcj OCA], [http://pdbe.org/6bcj PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6bcj RCSB], [http://www.ebi.ac.uk/pdbsum/6bcj PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6bcj ProSAT]</span></td></tr>
</table>
== Function ==
[[http://www.uniprot.org/uniprot/TRPM4_MOUSE TRPM4_MOUSE]] Calcium-activated non selective (CAN) cation channel that mediates membrane depolarization. While it is activated by increase in intracellular Ca(2+), it is impermeable to it. Mediates transport of monovalent cations (Na(+) > K(+) > Cs(+) > Li(+)), leading to depolarize the membrane. It thereby plays a central role in cadiomyocytes, neurons from entorhinal cortex, dorsal root and vomeronasal neurons, endocrine pancreas cells, kidney epithelial cells, cochlea hair cells etc. Participates in T-cell activation by modulating Ca(2+) oscillations after T lymphocyte activation, which is required for NFAT-dependent IL2 production. Involved in myogenic constriction of cerebral arteries. Controls insulin secretion in pancreatic beta-cells. May also be involved in pacemaking or could cause irregular electrical activity under conditions of Ca(2+) overload. Affects T-helper 1 (Th1) and T-helper 2 (Th2) cell motility and cytokine production through differential regulation of calcium signaling and NFATC1 localization. Enhances cell proliferation through up-regulation of the beta-catenin signaling pathway (By similarity). Essential for the migration but not the maturation of dendritic cells.<ref>PMID:17188667</ref> <ref>PMID:18758465</ref>  
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Bai, X]]
[[Category: Chen, Q]]
[[Category: Guo, J]]
[[Category: Jiang, Y]]
[[Category: She, J]]
[[Category: Ion channel]]
[[Category: Transport protein]]

Revision as of 10:03, 13 December 2017

cryo-EM structure of TRPM4 in apo state with short coiled coil at 3.1 angstrom resolutioncryo-EM structure of TRPM4 in apo state with short coiled coil at 3.1 angstrom resolution

Structural highlights

6bcj is a 4 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[TRPM4_MOUSE] Calcium-activated non selective (CAN) cation channel that mediates membrane depolarization. While it is activated by increase in intracellular Ca(2+), it is impermeable to it. Mediates transport of monovalent cations (Na(+) > K(+) > Cs(+) > Li(+)), leading to depolarize the membrane. It thereby plays a central role in cadiomyocytes, neurons from entorhinal cortex, dorsal root and vomeronasal neurons, endocrine pancreas cells, kidney epithelial cells, cochlea hair cells etc. Participates in T-cell activation by modulating Ca(2+) oscillations after T lymphocyte activation, which is required for NFAT-dependent IL2 production. Involved in myogenic constriction of cerebral arteries. Controls insulin secretion in pancreatic beta-cells. May also be involved in pacemaking or could cause irregular electrical activity under conditions of Ca(2+) overload. Affects T-helper 1 (Th1) and T-helper 2 (Th2) cell motility and cytokine production through differential regulation of calcium signaling and NFATC1 localization. Enhances cell proliferation through up-regulation of the beta-catenin signaling pathway (By similarity). Essential for the migration but not the maturation of dendritic cells.[1] [2]

References

  1. ↑ Demion M, Bois P, Launay P, Guinamard R. TRPM4, a Ca2+-activated nonselective cation channel in mouse sino-atrial node cells. Cardiovasc Res. 2007 Feb 1;73(3):531-8. doi: 10.1016/j.cardiores.2006.11.023., Epub 2006 Nov 22. PMID:17188667 doi:http://dx.doi.org/10.1016/j.cardiores.2006.11.023
  2. ↑ Barbet G, Demion M, Moura IC, Serafini N, Leger T, Vrtovsnik F, Monteiro RC, Guinamard R, Kinet JP, Launay P. The calcium-activated nonselective cation channel TRPM4 is essential for the migration but not the maturation of dendritic cells. Nat Immunol. 2008 Oct;9(10):1148-56. doi: 10.1038/ni.1648. Epub 2008 Aug 31. PMID:18758465 doi:http://dx.doi.org/10.1038/ni.1648

6bcj, resolution 3.14Å

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