View source for 8zqq


==Human high-affinity choline transporter CHT1 bound to choline under NaCl condition, with sodium and chloride ions coordinated.==
<StructureSection load='8zqq' size='340' side='right'caption='[[8zqq]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[8zqq]] is a 1 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=8ZQQ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8ZQQ 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]] 2.5&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BMA:BETA-D-MANNOSE'>BMA</scene>, <scene name='pdbligand=CHT:CHOLINE+ION'>CHT</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></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=8zqq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8zqq OCA], [https://pdbe.org/8zqq PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8zqq RCSB], [https://www.ebi.ac.uk/pdbsum/8zqq PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8zqq ProSAT]</span></td></tr>
</table>
== Disease ==
[https://www.uniprot.org/uniprot/SC5A7_HUMAN SC5A7_HUMAN] Distal hereditary motor neuropathy type 7;Presynaptic congenital myasthenic syndromes. The disease is caused by variants affecting the gene represented in this entry.  The disease is caused by variants affecting the gene represented in this entry.
== Function ==
[https://www.uniprot.org/uniprot/SC5A7_HUMAN SC5A7_HUMAN] High-affinity Na(+)-coupled choline transmembrane symporter (PubMed:11027560, PubMed:11068039, PubMed:12237312, PubMed:12969261, PubMed:17005849, PubMed:23132865, PubMed:23141292, PubMed:27569547). Functions as an electrogenic, voltage-dependent transporter with variable charge/choline stoichiometry (PubMed:17005849). Choline uptake and choline-induced current is also Cl(-)-dependent where Cl(-) is likely a regulatory ion rather than cotransported ion (PubMed:11068039, PubMed:12237312, PubMed:17005849). Plays a critical role in acetylcholine (ACh) synthesis by taking up the substrate choline from the synaptic cleft into the presynaptic nerve terminals after neurotransmitter release (PubMed:27569547). SLC5A7/CHT1-mediated choline high-affinity transport in cholinergic neurons is the rate-limiting step for production of ACh, thereby facilitating communication by subsequent action potentials (PubMed:11027560). Localized predominantly in presynaptic terminal intracellular organelles, and translocated to the plasma membrane in active form in response to neuronal activity (PubMed:12969261, PubMed:15953352).<ref>PMID:11027560</ref> <ref>PMID:11068039</ref> <ref>PMID:12237312</ref> <ref>PMID:12969261</ref> <ref>PMID:15953352</ref> <ref>PMID:17005849</ref> <ref>PMID:23132865</ref> <ref>PMID:23141292</ref> <ref>PMID:27569547</ref> 
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Gao Y]]
[[Category: Qiu Y]]
[[Category: Zhao Y]]