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- EMDB-32513: Cryo-EM structure of Dnf1 from Saccharomyces cerevisiae in deterg... -
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Open data
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Basic information
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Title | Cryo-EM structure of Dnf1 from Saccharomyces cerevisiae in detergent with AMPPCP (E1-ATP state) | |||||||||
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Function / homology | ![]() regulation of vacuole organization / glycosylceramide flippase activity / mating projection tip membrane / aminophospholipid translocation / Ion transport by P-type ATPases / phosphatidylcholine flippase activity / phosphatidylserine flippase activity / ceramide translocation / phospholipid-translocating ATPase complex / ATPase-coupled intramembrane lipid transporter activity ...regulation of vacuole organization / glycosylceramide flippase activity / mating projection tip membrane / aminophospholipid translocation / Ion transport by P-type ATPases / phosphatidylcholine flippase activity / phosphatidylserine flippase activity / ceramide translocation / phospholipid-translocating ATPase complex / ATPase-coupled intramembrane lipid transporter activity / phosphatidylserine floppase activity / phosphatidylethanolamine flippase activity / phosphatidylcholine floppase activity / cellular bud neck / cell septum / P-type phospholipid transporter / phospholipid translocation / establishment or maintenance of cell polarity / Neutrophil degranulation / cell periphery / intracellular protein transport / endocytosis / cell surface receptor signaling pathway / endosome membrane / magnesium ion binding / Golgi apparatus / endoplasmic reticulum / ATP hydrolysis activity / mitochondrion / ATP binding / identical protein binding / plasma membrane / cytoplasm Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.1 Å | |||||||||
![]() | Xu J / He Y / Wu X / Li L | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Conformational changes of a phosphatidylcholine flippase in lipid membranes. Authors: Jinkun Xu / Yilin He / Xiaofei Wu / Long Li / ![]() Abstract: Type 4 P-type ATPases (P4-ATPases) actively and selectively translocate phospholipids across membrane bilayers. Driven by ATP hydrolysis, P4-ATPases undergo conformational changes during lipid ...Type 4 P-type ATPases (P4-ATPases) actively and selectively translocate phospholipids across membrane bilayers. Driven by ATP hydrolysis, P4-ATPases undergo conformational changes during lipid flipping. It is unclear how the active flipping states of P4-ATPases are regulated in the lipid membranes, especially for phosphatidylcholine (PC)-flipping P4-ATPases whose substrate, PC, is a substantial component of membranes. Here, we report the cryoelectron microscopy structures of a yeast PC-flipping P4-ATPase, Dnf1, in lipid environments. In native yeast lipids, Dnf1 adopts a conformation in which the lipid flipping pathway is disrupted. Only when the lipid composition is changed can Dnf1 be captured in the active conformations that enable lipid flipping. These results suggest that, in the native membrane, Dnf1 may stay in an idle conformation that is unable to support the trans-membrane movement of lipids. Dnf1 may have altered conformational preferences in membranes with different lipid compositions. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 9.7 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 12.9 KB 12.9 KB | Display Display | ![]() |
Images | ![]() | 130.7 KB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 342.3 KB | Display | ![]() |
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Full document | ![]() | 341.8 KB | Display | |
Data in XML | ![]() | 6.5 KB | Display | |
Data in CIF | ![]() | 7.4 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7whwMC ![]() 7drxC ![]() 7dshC ![]() 7dsiC ![]() 7f7fC ![]() 7whvC M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Voxel size | X=Y=Z: 1.07 Å | ||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
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Sample components
-Entire : Dnf1_Lem3 complex
Entire | Name: Dnf1_Lem3 complex |
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Components |
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-Supramolecule #1: Dnf1_Lem3 complex
Supramolecule | Name: Dnf1_Lem3 complex / type: complex / Chimera: Yes / ID: 1 / Parent: 0 / Macromolecule list: #1-#2 |
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Source (natural) | Organism: ![]() ![]() |
Recombinant expression | Organism: ![]() ![]() |
-Macromolecule #1: Phospholipid-transporting ATPase DNF1
Macromolecule | Name: Phospholipid-transporting ATPase DNF1 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO / EC number: P-type phospholipid transporter |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 178.000172 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MSGTFHGDGH APMSPFEDTF QFEDNSSNED THIAPTHFDD GATSNKYSRP QVSFNDETPK NKREDAEEFT FNDDTEYDNH SFQPTPKLN NGSGTFDDVE LDNDSGEPHT NYDGMKRFRM GTKRNKKGNP IMGRSKTLKW ARKNIPNPFE DFTKDDIDPG A INRAQELR ...String: MSGTFHGDGH APMSPFEDTF QFEDNSSNED THIAPTHFDD GATSNKYSRP QVSFNDETPK NKREDAEEFT FNDDTEYDNH SFQPTPKLN NGSGTFDDVE LDNDSGEPHT NYDGMKRFRM GTKRNKKGNP IMGRSKTLKW ARKNIPNPFE DFTKDDIDPG A INRAQELR TVYYNMPLPK DMIDEEGNPI MQYPRNKIRT TKYTPLTFLP KNILFQFHNF ANVYFLVLII LGAFQIFGVT NP GLSAVPL VVIVIITAIK DAIEDSRRTV LDLEVNNTKT HILEGVENEN VSTDNISLWR RFKKANSRLL FKFIQYCKEH LTE EGKKKR MQRKRHELRV QKTVGTSGPR SSLDSIDSYR VSADYGRPSL DYDNLEQGAG EANIVDRSLP PRTDCKFAKN YWKG VKVGD IVRIHNNDEI PADIILLSTS DTDGACYVET KNLDGETNLK VRQSLKCTNT IRTSKDIART KFWIESEGPH SNLYT YQGN MKWRNLADGE IRNEPITINN VLLRGCTLRN TKWAMGVVMF TGGDTKIMLN SGITPTKKSR ISRELNFSVV INFVLL FIL CFVSGIANGV YYDKKGRSRF SYEFGTIAGS AATNGFVSFW VAVILYQSLV PISLYISVEI IKTAQAAFIY GDVLLYN AK LDYPCTPKSW NISDDLGQVE YIFSDKTGTL TQNVMEFKKC TINGVSYGRA YTEALAGLRK RQGIDVETEG RREKAEIA K DRDTMIDELR ALSGNSQFYP EEVTFVSKEF VRDLKGASGE VQQRCCEHFM LALALCHSVL VEANPDNPKK LDLKAQSPD EAALVATARD VGFSFVGKTK KGLIIEMQGI QKEFEILNIL EFNSSRKRMS CIVKIPGLNP GDEPRALLIC KGADSIIYSR LSRQSGSNS EAILEKTALH LEQYATEGLR TLCIAQRELS WSEYEKWNEK YDIAAASLAN REDELEVVAD SIERELILLG G TAIEDRLQ DGVPDCIELL AEAGIKLWVL TGDKVETAIN IGFSCNLLNN EMELLVIKTT GDDVKEFGSE PSEIVDALLS KY LKEYFNL TGSEEEIFEA KKDHEFPKGN YAIVIDGDAL KLALYGEDIR RKFLLLCKNC RAVLCCRVSP SQKAAVVKLV KDS LDVMTL AIGDGSNDVA MIQSADVGIG IAGEEGRQAV MCSDYAIGQF RYLARLVLVH GRWSYKRLAE MIPEFFYKNM IFAL ALFWY GIYNDFDGSY LYEYTYMMFY NLAFTSLPVI FLGILDQDVN DTISLVVPQL YRVGILRKEW NQRKFLWYML DGLYQ SIIC FFFPYLVYHK NMIVTSNGLG LDHRYFVGVY VTTIAVISCN TYVLLHQYRW DWFSGLFIAL SCLVVFAWTG IWSSAI ASR EFFKAAARIY GAPSFWAVFF VAVLFCLLPR FTYDSFQKFF YPTDVEIVRE MWQHGHFDHY PPGYDPTDPN RPKVTKA GQ HGEKIIEGIA LSDNLGGSNY SRDSVVTEEI PMTFMHGEDG SPSGYQKQET WMTSPKETQD LLQSPQFQQA QTFGRGPS T NVRSSLDRTR EQMIATNQLD NRYSVERART SLDLPGVTNA ASLIGTQQNN |
-Macromolecule #2: Alkylphosphocholine resistance protein LEM3
Macromolecule | Name: Alkylphosphocholine resistance protein LEM3 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 47.490395 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MVNFDLGQVG EVFRRKDKGA IVSGDNPEEE EDVDASEFEE DEVKPVRTKN RRPKEDAFTQ QRLAAINPVL TPRTVLPLYL LIAVVFVIV GGCILAQNSK VDEVTIYYQD CMTNATSSWS DIPSEHWQFV FHKYKTYNTA PQWRFVDDES DDFTKQRGTC Q IRFTTPSD ...String: MVNFDLGQVG EVFRRKDKGA IVSGDNPEEE EDVDASEFEE DEVKPVRTKN RRPKEDAFTQ QRLAAINPVL TPRTVLPLYL LIAVVFVIV GGCILAQNSK VDEVTIYYQD CMTNATSSWS DIPSEHWQFV FHKYKTYNTA PQWRFVDDES DDFTKQRGTC Q IRFTTPSD MKNNVYLNYV LEKFAANHRR YVLSFSEDQI RGEDASYETV HDATGINCKP LSKNADGKIY YPCGLIANSM FN DTFPLQL TNVGDTSNNY SLTNKGINWE SDKKRYKKTK YNYTQIAPPP YWEKMYPDGY NETNIPDIQD WEEFQNWMRP GAF DKITKL IRINKNDTLP AGEYQLDIGL HWPVLEFNGK KGIYLTHGSH LGGRNPFLGI VYLIGGCICA AMALILLTFW LFGG RKIAD ASSLSWNMK |
-Macromolecule #4: PHOSPHOMETHYLPHOSPHONIC ACID ADENYLATE ESTER
Macromolecule | Name: PHOSPHOMETHYLPHOSPHONIC ACID ADENYLATE ESTER / type: ligand / ID: 4 / Number of copies: 1 / Formula: ACP |
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Molecular weight | Theoretical: 505.208 Da |
Chemical component information | ![]() ChemComp-ACP: |
-Macromolecule #5: MAGNESIUM ION
Macromolecule | Name: MAGNESIUM ION / type: ligand / ID: 5 / Number of copies: 1 / Formula: MG |
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Molecular weight | Theoretical: 24.305 Da |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: NITROGEN |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 8.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: SPOT SCAN / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.0 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
Startup model | Type of model: PDB ENTRY PDB model - PDB ID: |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.1 Å / Resolution method: FSC 0.33 CUT-OFF / Number images used: 295853 |
Initial angle assignment | Type: ANGULAR RECONSTITUTION |
Final angle assignment | Type: RANDOM ASSIGNMENT |