7ynk: Difference between revisions

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'''Unreleased structure'''


The entry 7ynk is ON HOLD
==Structure of human SGLT2-MAP17 complex in the apo state in the inward-facing conformation==
<StructureSection load='7ynk' size='340' side='right'caption='[[7ynk]], [[Resolution|resolution]] 3.48&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[7ynk]] is a 2 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=7YNK OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7YNK 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]] 3.48&#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=7ynk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7ynk OCA], [https://pdbe.org/7ynk PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7ynk RCSB], [https://www.ebi.ac.uk/pdbsum/7ynk PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7ynk ProSAT]</span></td></tr>
</table>
== Disease ==
[https://www.uniprot.org/uniprot/SC5A2_HUMAN SC5A2_HUMAN] Familial renal glucosuria. The disease is caused by variants affecting the gene represented in this entry.
== Function ==
[https://www.uniprot.org/uniprot/SC5A2_HUMAN SC5A2_HUMAN] Electrogenic Na(+)-coupled sugar symporter that actively transports D-glucose at the plasma membrane, with a Na(+) to sugar coupling ratio of 1:1. Transporter activity is driven by a transmembrane Na(+) electrochemical gradient set by the Na(+)/K(+) pump (PubMed:20980548, PubMed:28592437, PubMed:34880493). Has a primary role in D-glucose reabsorption from glomerular filtrate across the brush border of the early proximal tubules of the kidney (By similarity).[UniProtKB:Q923I7]<ref>PMID:20980548</ref> <ref>PMID:28592437</ref> <ref>PMID:34880493</ref>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Sodium-Glucose Cotransporters (SGLT) mediate the uphill uptake of extracellular sugars and play fundamental roles in sugar metabolism. Although their structures in inward-open and outward-open conformations are emerging from structural studies, the trajectory of how SGLTs transit from the outward-facing to the inward-facing conformation remains unknown. Here, we present the cryo-EM structures of human SGLT1 and SGLT2 in the substrate-bound state. Both structures show an occluded conformation, with not only the extracellular gate but also the intracellular gate tightly sealed. The sugar substrate are caged inside a cavity surrounded by TM1, TM2, TM3, TM6, TM7, and TM10. Further structural analysis reveals the conformational changes associated with the binding and release of substrates. These structures fill a gap in our understanding of the structural mechanisms of SGLT transporters.


Authors:  
Structures of human SGLT in the occluded state reveal conformational changes during sugar transport.,Cui W, Niu Y, Sun Z, Liu R, Chen L Nat Commun. 2023 May 22;14(1):2920. doi: 10.1038/s41467-023-38720-1. PMID:37217492<ref>PMID:37217492</ref>


Description:  
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
[[Category: Unreleased Structures]]
</div>
<div class="pdbe-citations 7ynk" style="background-color:#fffaf0;"></div>
 
==See Also==
*[[Sodium/glucose cotransporter 3D structures|Sodium/glucose cotransporter 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Chen L]]
[[Category: Niu Y]]

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