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Open data
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Basic information
| Entry | ![]() | |||||||||||||||
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| Title | Cryo-EM structure of P5A-ATPase CtSpf1 (E1-ATP state) | |||||||||||||||
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Keywords | translocase / MEMBRANE PROTEIN | |||||||||||||||
| Function / homology | Function and homology informationP-type ion transporter activity / ATPase-coupled monoatomic cation transmembrane transporter activity / intracellular calcium ion homeostasis / endoplasmic reticulum membrane / ATP hydrolysis activity / ATP binding Similarity search - Function | |||||||||||||||
| Biological species | Thermochaetoides thermophila (fungus) | |||||||||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.2 Å | |||||||||||||||
Authors | Li P / Gourdon P | |||||||||||||||
| Funding support | Sweden, Denmark, 4 items
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Citation | Journal: Nat Commun / Year: 2024Title: The structure and function of P5A-ATPases. Authors: Ping Li / Viktoria Bågenholm / Per Hägglund / Karin Lindkvist-Petersson / Kaituo Wang / Pontus Gourdon / ![]() Abstract: Endoplasmic reticulum (ER) membrane resident P5A-ATPases broadly affect protein biogenesis and quality control, and yet their molecular function remains debated. Here, we report cryo-EM structures of ...Endoplasmic reticulum (ER) membrane resident P5A-ATPases broadly affect protein biogenesis and quality control, and yet their molecular function remains debated. Here, we report cryo-EM structures of a P5A-ATPase, CtSpf1, covering multiple transport intermediates of the E1 → E1-ATP → E1P-ADP → E1P → E2P → E2.P → E2 → E1 cycle. In the E2P and E2.P states a cleft spans the entire membrane, holding a polypeptide cargo molecule. The cargo includes an ER luminal extension, pinpointed as the C-terminus in the E2.P state, which reenters the membrane in E2P. The E1 structure harbors a cytosol-facing cavity that is blocked by an insertion we refer to as the Plug-domain. The Plug-domain is nestled to key ATPase features and is displaced in the E1P-ADP and E1P states. Collectively, our findings are compatible with a broad range of proteins as cargo, with the P5A-ATPases serving a role in membrane removal of helices, although insertion/secretion cannot be excluded, as well as with a mechanistic role of the Plug-domain. #1: Journal: Acta Crystallogr., Sect. D: Biol. Crystallogr. / Year: 2018Title: Real-space refinement in PHENIX for cryo-EM and crystallography Authors: Li P / Gourdon P | |||||||||||||||
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Structure visualization
| Supplemental images |
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Downloads & links
-EMDB archive
| Map data | emd_17040.map.gz | 84 MB | EMDB map data format | |
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| Header (meta data) | emd-17040-v30.xml emd-17040.xml | 16.5 KB 16.5 KB | Display Display | EMDB header |
| Images | emd_17040.png | 85.3 KB | ||
| Filedesc metadata | emd-17040.cif.gz | 6.3 KB | ||
| Others | emd_17040_half_map_1.map.gz emd_17040_half_map_2.map.gz | 151.7 MB 151.7 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-17040 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-17040 | HTTPS FTP |
-Validation report
| Summary document | emd_17040_validation.pdf.gz | 862.9 KB | Display | EMDB validaton report |
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| Full document | emd_17040_full_validation.pdf.gz | 862.4 KB | Display | |
| Data in XML | emd_17040_validation.xml.gz | 14.9 KB | Display | |
| Data in CIF | emd_17040_validation.cif.gz | 17.7 KB | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-17040 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-17040 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 8op4MC ![]() 8op3C ![]() 8op5C ![]() 8op6C ![]() 8op7C ![]() 8op8C C: citing same article ( M: atomic model generated by this map |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_17040.map.gz / Format: CCP4 / Size: 163.6 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 0.832 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
-Half map: #2
| File | emd_17040_half_map_1.map | ||||||||||||
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| Density Histograms |
-Half map: #1
| File | emd_17040_half_map_2.map | ||||||||||||
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Sample components
-Entire : CtSpf1 with AMPPNP bound
| Entire | Name: CtSpf1 with AMPPNP bound |
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| Components |
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-Supramolecule #1: CtSpf1 with AMPPNP bound
| Supramolecule | Name: CtSpf1 with AMPPNP bound / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1 |
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| Source (natural) | Organism: Thermochaetoides thermophila (fungus) |
-Macromolecule #1: Cation-transporting ATPase-like protein
| Macromolecule | Name: Cation-transporting ATPase-like protein / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Thermochaetoides thermophila (fungus) |
| Molecular weight | Theoretical: 149.103156 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: MAPLVDNPQI KSAELLRPLP LYQHAYVWPY VIVWPVFLRV YLTQELYDKY IGAQEWTFVW IISIVTFQTL TWLCTHWSVN LNALFTAKK ASSIEDAQLI KVIPVANAGA ADICKLVRDK VGDNKTNISF LFQKRRFLWY PERKAFSTLE FDIDAEPKPT L SKFQLSRG ...String: MAPLVDNPQI KSAELLRPLP LYQHAYVWPY VIVWPVFLRV YLTQELYDKY IGAQEWTFVW IISIVTFQTL TWLCTHWSVN LNALFTAKK ASSIEDAQLI KVIPVANAGA ADICKLVRDK VGDNKTNISF LFQKRRFLWY PERKAFSTLE FDIDAEPKPT L SKFQLSRG IESEDELKRL EQHYGTNTFD IPVPTFTELF KEHAVAPFFV FQVFCVGLWL LDEYWYYSLF TLVMLVVFES TV VWQRQRT LTEFRSMSIK PYPIYVYRLG KWTEIQSDKL LPGDLVSVTR TKEDSGVACD MILVEGTAIV NEAMLSGEST PLL KDSIQL RPGDAVLEVD GLDKNSLLWG GTKVLQITHG TAEEERPKPA SGIPPPPDNG AMAVVTKTGF ETSQGSLVRT MIYS TERVS ANNTEALLFI LFLLVFALAA SWYVWDEGVR KDRKRSKLLL DCILIITSVV PPELPMELSL AVNTSLSALA KFAIF CTEP FRIPFAGRID VACFDKTGTL TGEDLVVEGI AGLGLGHSGT DTPKEADGAH TRMVSVHDAG METTLVLATA HALVKL DEG EIVGDPMEKA TLNALGWVLG KNDTLTSKPG NAASSGILGT VQIKRRFQFS SALKRQSSVA TITATEVKTG RKLRGSF VG VKGAPETIMK MLVTVPEHYE ETYKYFTRRG SRVLALAYKQ LTTEGELGAN KINDLKRESV EADLHFAGFL VLQCPLKE D AKQAVRMLNE SSHRVVMITG DNPLTAVHVA KEVEIVDRDV LILDAPEHSV YGEESLVWRS VDDKIRIDVD PTKPIDPEI LKTKDLCVTG YALNKFKGQV GWKSLLRYTW VYARVSPKQK EDILLGLKDM GYYTLMAGDG TNDVGALKQA HVGVALLNGT QEDLNRIAE HTRNQKMKEL YQKQVDLMAR WGQPPPPVPA MIAHLYPPGP SNPHYQKAME REAQKRGVTV EQLAKVNGTN V TSNPAGVQ QQSGQDAKKA KQVEAAKKAA NFADKLTSSL MEAEMDDEPP TLKLGDASVA APFTSKLRNV MAIPNILRQG RC TLVATIQ MYKILALNCL ISAYSLSVLY LEGIKFGDGQ ITISGMLMSV CFLSISRARS VEGLSKERPQ PNIFNFYIIG SIL GQFAVH VATLIYIAQL CDQIEPRTEV IDLEAEFKPS LLNSAVYLLQ LIQQISTFAV NYQGRPFRES LSENKGMFYG IVGV TAIAF ACSTEMLPEL NEAMKLVPFN ENFKTIMTTV MIIDFVACYV IEWVLKKLFS DLRARDIAER RPDQLERERV RKEKE AREK EEEEERKERE RIEAFERRLE EKRTRLVEAA AQREQQQQQW AQRR UniProtKB: Cation-transporting ATPase-like protein |
-Macromolecule #2: PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER
| Macromolecule | Name: PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER / type: ligand / ID: 2 / Number of copies: 1 / Formula: ANP |
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| Molecular weight | Theoretical: 506.196 Da |
| Chemical component information | ![]() ChemComp-ANP: |
-Macromolecule #3: MAGNESIUM ION
| Macromolecule | Name: MAGNESIUM ION / type: ligand / ID: 3 / 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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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Buffer | pH: 7.5 |
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| Vitrification | Cryogen name: ETHANE |
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Electron microscopy
| Microscope | FEI TITAN KRIOS |
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| Image recording | Film or detector model: FEI FALCON III (4k x 4k) / Average electron dose: 40.0 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.6 µm / Nominal defocus min: 1.2 µm |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
| Startup model | Type of model: NONE |
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| Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 115476 |
| Initial angle assignment | Type: RANDOM ASSIGNMENT |
| Final angle assignment | Type: RANDOM ASSIGNMENT |
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About Yorodumi




Keywords
Thermochaetoides thermophila (fungus)
Authors
Sweden,
Denmark, 4 items
Citation













Z (Sec.)
Y (Row.)
X (Col.)






































FIELD EMISSION GUN
