6k7i

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Current revision (05:22, 21 November 2024) (edit) (undo)
 
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<SX load='6k7i' size='340' side='right' viewer='molstar' caption='[[6k7i]], [[Resolution|resolution]] 3.22&Aring;' scene=''>
<SX load='6k7i' size='340' side='right' viewer='molstar' caption='[[6k7i]], [[Resolution|resolution]] 3.22&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[6k7i]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6K7I OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=6K7I FirstGlance]. <br>
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<table><tr><td colspan='2'>[[6k7i]] 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=6K7I OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6K7I FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACP:PHOSPHOMETHYLPHOSPHONIC+ACID+ADENYLATE+ESTER'>ACP</scene>, <scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=Y01:CHOLESTEROL+HEMISUCCINATE'>Y01</scene></td></tr>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 3.22&#8491;</td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CDC50A ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACP:PHOSPHOMETHYLPHOSPHONIC+ACID+ADENYLATE+ESTER'>ACP</scene>, <scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=Y01:CHOLESTEROL+HEMISUCCINATE'>Y01</scene></td></tr>
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<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/P-type_phospholipid_transporter P-type phospholipid transporter], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=7.6.2.1 7.6.2.1] </span></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=6k7i FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6k7i OCA], [https://pdbe.org/6k7i PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6k7i RCSB], [https://www.ebi.ac.uk/pdbsum/6k7i PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6k7i ProSAT]</span></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=6k7i FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6k7i OCA], [http://pdbe.org/6k7i PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6k7i RCSB], [http://www.ebi.ac.uk/pdbsum/6k7i PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6k7i ProSAT]</span></td></tr>
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</table>
</table>
== Function ==
== Function ==
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[[http://www.uniprot.org/uniprot/CC50A_HUMAN CC50A_HUMAN]] Accessory component of a P4-ATPase flippase complex which catalyzes the hydrolysis of ATP coupled to the transport of aminophospholipids from the outer to the inner leaflet of various membranes and ensures the maintenance of asymmetric distribution of phospholipids. Phospholipid translocation seems also to be implicated in vesicle formation and in uptake of lipid signaling molecules. The beta subunit may assist in binding of the phospholipid substrate. Required for the proper folding, assembly and ER to Golgi exit of the ATP8A2:TMEM30A flippase complex. ATP8A2:TMEM30A may be involved in regulation of neurite outgrowth, and, reconstituted to liposomes, predomiminantly transports phosphatidylserine (PS) and to a lesser extent phosphatidylethanolamine (PE). The ATP8A1:TMEM30A flippase complex seems to play a role in regulation of cell migration probably involving flippase-mediated translocation of phosphatidylethanolamine (PE) at the plasma membrane. Required for the formation of the ATP8A2, ATP8B1 and ATP8B2 P-type ATPAse intermediate phosphoenzymes. Involved in uptake of platelet-activating factor (PAF), synthetic drug alkylphospholipid edelfosine, and, probably in association with ATP8B1, of perifosine. Also mediate the export of alpha subunits ATP8A1, ATP8B1, ATP8B2, ATP8B4, ATP10A, ATP10B, ATP10D, ATP11A, ATP11B and ATP11C from the ER to other membrane localizations.<ref>PMID:20510206</ref> <ref>PMID:20947505</ref> <ref>PMID:20961850</ref> <ref>PMID:21289302</ref>
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[https://www.uniprot.org/uniprot/AT8A1_HUMAN AT8A1_HUMAN] Catalytic component of a P4-ATPase flippase complex which catalyzes the hydrolysis of ATP coupled to the transport of aminophospholipids from the outer to the inner leaflet of various membranes and ensures the maintenance of asymmetric distribution of phospholipids (PubMed:31416931). Phospholipid translocation seems also to be implicated in vesicle formation and in uptake of lipid signaling molecules. In vitro, its ATPase activity is selectively and stereospecifically stimulated by phosphatidylserine (PS) (PubMed:31416931). The flippase complex ATP8A1:TMEM30A seems to play a role in regulation of cell migration probably involving flippase-mediated translocation of phosphatidylethanolamine (PE) at the cell membrane (By similarity). Acts as aminophospholipid translocase at the cell membrane in neuronal cells (By similarity).[UniProtKB:P70704]<ref>PMID:31416931</ref>
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== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
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<div class="pdbe-citations 6k7i" style="background-color:#fffaf0;"></div>
<div class="pdbe-citations 6k7i" style="background-color:#fffaf0;"></div>
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==See Also==
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*[[ATPase 3D structures|ATPase 3D structures]]
== References ==
== References ==
<references/>
<references/>
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[[Category: Human]]
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[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Large Structures]]
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[[Category: P-type phospholipid transporter]]
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[[Category: Hiraizumi M]]
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[[Category: Hiraizumi, M]]
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[[Category: Nishizawa T]]
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[[Category: Nishizawa, T]]
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[[Category: Nureki O]]
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[[Category: Nureki, O]]
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[[Category: Yamashita K]]
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[[Category: Yamashita, K]]
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[[Category: Flippase]]
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[[Category: Membrane protein]]
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Current revision

Cryo-EM structure of the human P4-type flippase ATP8A1-CDC50 (E1-ATP state class2)

6k7i, resolution 3.22Å

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