7rd7: Difference between revisions
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==Structure of the S. cerevisiae P4B ATPase lipid flippase in the E2P-transition state== | ==Structure of the S. cerevisiae P4B ATPase lipid flippase in the E2P-transition state== | ||
<StructureSection load='7rd7' size='340' side='right'caption='[[7rd7]]' scene=''> | <StructureSection load='7rd7' size='340' side='right'caption='[[7rd7]], [[Resolution|resolution]] 3.08Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7RD7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7RD7 FirstGlance]. <br> | <table><tr><td colspan='2'>[[7rd7]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7RD7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7RD7 FirstGlance]. <br> | ||
</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=7rd7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7rd7 OCA], [https://pdbe.org/7rd7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7rd7 RCSB], [https://www.ebi.ac.uk/pdbsum/7rd7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7rd7 ProSAT]</span></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ALF:TETRAFLUOROALUMINATE+ION'>ALF</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> | ||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/P-type_phospholipid_transporter P-type phospholipid transporter], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=7.6.2.1 7.6.2.1] </span></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=7rd7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7rd7 OCA], [https://pdbe.org/7rd7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7rd7 RCSB], [https://www.ebi.ac.uk/pdbsum/7rd7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7rd7 ProSAT]</span></td></tr> | |||
</table> | </table> | ||
== Function == | |||
[[https://www.uniprot.org/uniprot/ATC7_YEAST ATC7_YEAST]] This magnesium-dependent enzyme catalyzes the hydrolysis of ATP coupled with the transport of phospholipids (Potential). Leads to neomycin-resistance when overexpressed. Required for traffic between late Golgi and early endosomes.<ref>PMID:15314152</ref> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
P4 ATPases are lipid flippases that are phylogenetically grouped into P4A, P4B and P4C clades. The P4A ATPases are heterodimers composed of a catalytic alpha-subunit and accessory beta-subunit, and the structures of several heterodimeric flippases have been reported. The S. cerevisiae Neo1 and its orthologs represent the P4B ATPases, which function as monomeric flippases without a beta-subunit. It has been unclear whether monomeric flippases retain the architecture and transport mechanism of the dimeric flippases. Here we report the structure of a P4B ATPase, Neo1, in its E1-ATP, E2P-transition, and E2P states. The structure reveals a conserved architecture as well as highly similar functional intermediate states relative to dimeric flippases. Consistently, structure-guided mutagenesis of residues in the proposed substrate translocation path disrupted Neo1's ability to establish membrane asymmetry. These observations indicate that evolutionarily distant P4 ATPases use a structurally conserved mechanism for substrate transport. | |||
Structural basis of the P4B ATPase lipid flippase activity.,Bai L, Jain BK, You Q, Duan HD, Takar M, Graham TR, Li H Nat Commun. 2021 Oct 13;12(1):5963. doi: 10.1038/s41467-021-26273-0. PMID:34645814<ref>PMID:34645814</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 7rd7" style="background-color:#fffaf0;"></div> | |||
== References == | |||
<references/> | |||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
[[Category: Bai L]] | [[Category: P-type phospholipid transporter]] | ||
[[Category: Duan | [[Category: Bai, L]] | ||
[[Category: Graham | [[Category: Duan, H D]] | ||
[[Category: Jain | [[Category: Graham, T R]] | ||
[[Category: Li H]] | [[Category: Jain, B K]] | ||
[[Category: You Q]] | [[Category: Li, H]] | ||
[[Category: You, Q]] | |||
[[Category: P4b atpase lipid flippase]] | |||
[[Category: Translocase]] | |||
Revision as of 15:55, 27 October 2021
Structure of the S. cerevisiae P4B ATPase lipid flippase in the E2P-transition state
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