View source for 6puo


==Human TRPM2 in the apo state==
<SX load='6puo' size='340' side='right' viewer='molstar' caption='[[6puo]], [[Resolution|resolution]] 3.30&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6puo]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6PUO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6PUO FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 3.3&#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=6puo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6puo OCA], [https://pdbe.org/6puo PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6puo RCSB], [https://www.ebi.ac.uk/pdbsum/6puo PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6puo ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/TRPM2_HUMAN TRPM2_HUMAN] Isoform 1: Nonselective, voltage-independent cation channel that mediates Na(+) and Ca(2+) influx, leading to increased cytoplasmic Ca(2+) levels (PubMed:11960981, PubMed:12594222, PubMed:11385575, PubMed:11509734, PubMed:11804595, PubMed:15561722, PubMed:16601673, PubMed:19171771, PubMed:20660597, PubMed:27383051, PubMed:27068538). Extracellular calcium passes through the channel and increases channel activity by binding to the cytoplasmic domain and stabilizing the channel in an open conformation (PubMed:19171771). Also contributes to Ca(2+) release from intracellular stores in response to ADP-ribose (PubMed:19454650). Plays a role in numerous processes that involve signaling via intracellular Ca(2+) levels (Probable). Besides, mediates the release of lysosomal Zn(2+) stores in response to reactive oxygen species, leading to increased cytosolic Zn(2+) levels (PubMed:25562606, PubMed:27068538). Activated by moderate heat (35 to 40 degrees Celsius) (PubMed:16601673). Activated by intracellular ADP-ribose, beta-NAD (NAD(+)) and similar compounds, and by oxidative stress caused by reactive oxygen or nitrogen species (PubMed:11960981, PubMed:11385575, PubMed:11509734, PubMed:11804595, PubMed:15561722, PubMed:16601673, PubMed:19171771, PubMed:27383051, PubMed:27068538). The precise physiological activators are under debate; the true, physiological activators may be ADP-ribose and ADP-ribose-2'-phosphate (PubMed:20650899, PubMed:25918360). Activation by ADP-ribose and beta-NAD is strongly increased by moderate heat (35 to 40 degrees Celsius) (PubMed:16601673). Likewise, reactive oxygen species lower the threshold for activation by moderate heat (37 degrees Celsius) (PubMed:22493272). Plays a role in mediating behavorial and physiological responses to moderate heat and thereby contributes to body temperature homeostasis. Plays a role in insulin secretion, a process that requires increased cytoplasmic Ca(2+) levels (By similarity). Required for normal IFNG and cytokine secretion and normal innate immune immunity in response to bacterial infection. Required for normal phagocytosis and cytokine release by macrophages exposed to zymosan (in vitro). Plays a role in dendritic cell differentiation and maturation, and in dendritic cell chemotaxis via its role in regulating cytoplasmic Ca(2+) levels (By similarity). Plays a role in the regulation of the reorganization of the actin cytoskeleton and filopodia formation in response to reactive oxygen species via its role in increasing cytoplasmic Ca(2+) and Zn(2+) levels (PubMed:27068538). Confers susceptibility to cell death following oxidative stress (PubMed:12594222, PubMed:25562606).[UniProtKB:Q91YD4]<ref>PMID:11385575</ref> <ref>PMID:11509734</ref> <ref>PMID:11804595</ref> <ref>PMID:11960981</ref> <ref>PMID:12594222</ref> <ref>PMID:15561722</ref> <ref>PMID:16601673</ref> <ref>PMID:19171771</ref> <ref>PMID:19454650</ref> <ref>PMID:20650899</ref> <ref>PMID:20660597</ref> <ref>PMID:22493272</ref> <ref>PMID:25562606</ref> <ref>PMID:25918360</ref> <ref>PMID:27068538</ref> <ref>PMID:27383051</ref>   Isoform 2: Lacks cation channel activity. Does not mediate cation transport in response to oxidative stress or ADP-ribose.<ref>PMID:11960981</ref>   Isoform 3: Lacks cation channel activity and negatively regulates the channel activity of isoform 1. Negatively regulates susceptibility to cell death in reposponse to oxidative stress.<ref>PMID:12594222</ref> 
== References ==
<references/>
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[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Du J]]
[[Category: Huang Y]]
[[Category: Lu W]]