3e7k: Difference between revisions

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<StructureSection load='3e7k' size='340' side='right'caption='[[3e7k]], [[Resolution|resolution]] 2.01&Aring;' scene=''>
<StructureSection load='3e7k' size='340' side='right'caption='[[3e7k]], [[Resolution|resolution]] 2.01&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[3e7k]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Buffalo_rat Buffalo rat]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3E7K OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3E7K FirstGlance]. <br>
<table><tr><td colspan='2'>[[3e7k]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3E7K OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3E7K FirstGlance]. <br>
</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=3e7k FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3e7k OCA], [http://pdbe.org/3e7k PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3e7k RCSB], [http://www.ebi.ac.uk/pdbsum/3e7k PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3e7k ProSAT]</span></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.01&#8491;</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3e7k FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3e7k OCA], [https://pdbe.org/3e7k PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3e7k RCSB], [https://www.ebi.ac.uk/pdbsum/3e7k PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3e7k ProSAT]</span></td></tr>
</table>
</table>
== Function ==
[https://www.uniprot.org/uniprot/TRPM7_RAT TRPM7_RAT] Essential ion channel and serine/threonine-protein kinase. Divalent cation channel permeable to calcium and magnesium. Has a central role in magnesium ion homeostasis and in the regulation of anoxic neuronal cell death. Involved in TNF-induced necroptosis downstream of MLKL by mediating calcium influx. The kinase activity is essential for the channel function. May be involved in a fundamental process that adjusts plasma membrane divalent cation fluxes according to the metabolic state of the cell. Phosphorylates annexin A1 (ANXA1) (By similarity).
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=3e7k ConSurf].
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=3e7k ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Transient receptor potential (TRP) channels comprise a large family of tetrameric cation-selective ion channels that respond to diverse forms of sensory input. Earlier studies showed that members of the TRPM subclass possess a self-assembling tetrameric C-terminal cytoplasmic coiled-coil domain that underlies channel assembly and trafficking. Here, we present the high-resolution crystal structure of the coiled-coil domain of the channel enzyme TRPM7. The crystal structure, together with biochemical experiments, reveals an unexpected four-stranded antiparallel coiled-coil architecture that bears unique features relative to other antiparallel coiled-coils. Structural analysis indicates that a limited set of interactions encode assembly specificity determinants and uncovers a previously unnoticed segregation of TRPM assembly domains into two families that correspond with the phylogenetic divisions seen for the complete subunits. Together, the data provide a framework for understanding the mechanism of TRPM channel assembly and highlight the diversity of forms found in the coiled-coil fold.
X-ray crystal structure of a TRPM assembly domain reveals an antiparallel four-stranded coiled-coil.,Fujiwara Y, Minor DL Jr J Mol Biol. 2008 Nov 21;383(4):854-70. Epub 2008 Aug 29. PMID:18782578<ref>PMID:18782578</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 3e7k" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Buffalo rat]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Fujiwara, Y]]
[[Category: Rattus norvegicus]]
[[Category: Minor, D L]]
[[Category: Fujiwara Y]]
[[Category: Antiparallel]]
[[Category: Minor DL]]
[[Category: Assembly domain]]
[[Category: Coiled-coil]]
[[Category: Ion channel]]
[[Category: Membrane protein]]
[[Category: Trpm channel]]
[[Category: Trpm7]]

Latest revision as of 12:45, 21 February 2024

Crystal Structure of an antiparallel coiled-coil tetramerization domain from TRPM7 channelsCrystal Structure of an antiparallel coiled-coil tetramerization domain from TRPM7 channels

Structural highlights

3e7k is a 8 chain structure with sequence from Rattus norvegicus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.01Å
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

TRPM7_RAT Essential ion channel and serine/threonine-protein kinase. Divalent cation channel permeable to calcium and magnesium. Has a central role in magnesium ion homeostasis and in the regulation of anoxic neuronal cell death. Involved in TNF-induced necroptosis downstream of MLKL by mediating calcium influx. The kinase activity is essential for the channel function. May be involved in a fundamental process that adjusts plasma membrane divalent cation fluxes according to the metabolic state of the cell. Phosphorylates annexin A1 (ANXA1) (By similarity).

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

3e7k, resolution 2.01Å

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OCA
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