View source for 8sqm


==Cleaved Ycf1p Monomer in the IFwide-alpha conformation==
<StructureSection load='8sqm' size='340' side='right'caption='[[8sqm]], [[Resolution|resolution]] 3.40&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[8sqm]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8SQM OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8SQM 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]] 3.4&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=8PE:(2R)-3-{[(S)-(2-AMINOETHOXY)(HYDROXY)PHOSPHORYL]OXY}-2-(TETRADECANOYLOXY)PROPYL+OCTADECANOATE'>8PE</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=8sqm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8sqm OCA], [https://pdbe.org/8sqm PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8sqm RCSB], [https://www.ebi.ac.uk/pdbsum/8sqm PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8sqm ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/YCFI_YEAST YCFI_YEAST] Cooperates for the ATP-dependent vacuolar transport of bilirubin and glutathione conjugates.<ref>PMID:10790694</ref> <ref>PMID:8626454</ref> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Activities of ATP binding cassette (ABC) proteins are regulated by multiple mechanisms, including protein interactions, phosphorylation, proteolytic processing, and/or oligomerization of the ABC protein itself. Here we present the structure of yeast cadmium factor 1 (Ycf1p) in its mature form following cleavage by Pep4p protease. Ycf1p, a C subfamily ABC protein (ABCC), is homologue of human multidrug resistance protein 1. Remarkably, a portion of cleaved Ycf1p forms a well-ordered dimer, alongside monomeric particles also present in solution. While numerous other ABC proteins have been proposed to dimerize, no high-resolution structures have been reported. Both phosphorylation of the regulatory (R) region and ATPase activity are lower in the Ycf1p dimer compared to the monomer, indicating that dimerization affects Ycf1p function. The interface between Ycf1p protomers features protein-protein interactions and contains bound lipids, suggesting that lipids stabilize the dimer. The Ycf1p dimer structure may inform the dimerization interfaces of other ABCC dimers.

Structure of a dimeric full-length ABC transporter.,Bickers SC, Benlekbir S, Rubinstein JL, Kanelis V Nat Commun. 2024 Nov 16;15(1):9946. doi: 10.1038/s41467-024-54147-8. PMID:39550367<ref>PMID:39550367</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 8sqm" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Saccharomyces cerevisiae]]
[[Category: Benlekbir S]]
[[Category: Bickers SC]]
[[Category: Kanelis V]]
[[Category: Rubinstein JL]]