+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-9297 | ||||||||||||
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Title | Cryo-EM structure of phosphodiesterase 6 | ||||||||||||
Map data | Cryo-EM structure of phosphodiesterase 6, primary map | ||||||||||||
Sample |
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Keywords | GAF domain / phosphohydrolase / G protein-coupled receptor signaling / SIGNALING PROTEIN | ||||||||||||
Function / homology | Function and homology information 3',5'-cyclic-GMP phosphodiesterase / Inactivation, recovery and regulation of the phototransduction cascade / positive regulation of G protein-coupled receptor signaling pathway / Activation of the phototransduction cascade / Ca2+ pathway / positive regulation of epidermal growth factor receptor signaling pathway / photoreceptor outer segment membrane / entrainment of circadian clock by photoperiod / cGMP binding / 3',5'-cyclic-GMP phosphodiesterase activity ...3',5'-cyclic-GMP phosphodiesterase / Inactivation, recovery and regulation of the phototransduction cascade / positive regulation of G protein-coupled receptor signaling pathway / Activation of the phototransduction cascade / Ca2+ pathway / positive regulation of epidermal growth factor receptor signaling pathway / photoreceptor outer segment membrane / entrainment of circadian clock by photoperiod / cGMP binding / 3',5'-cyclic-GMP phosphodiesterase activity / 3',5'-cyclic-AMP phosphodiesterase activity / cAMP-mediated signaling / visual perception / photoreceptor disc membrane / retina development in camera-type eye / molecular adaptor activity / zinc ion binding / metal ion binding Similarity search - Function | ||||||||||||
Biological species | Bos taurus (cattle) | ||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.4 Å | ||||||||||||
Authors | Gulati S / Palczewski K / Kovacik L / Stahlberg H | ||||||||||||
Funding support | United States, 3 items
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Citation | Journal: Sci Adv / Year: 2019 Title: Cryo-EM structure of phosphodiesterase 6 reveals insights into the allosteric regulation of type I phosphodiesterases. Authors: Sahil Gulati / Krzysztof Palczewski / Andreas Engel / Henning Stahlberg / Lubomir Kovacik / Abstract: Cyclic nucleotide phosphodiesterases (PDEs) work in conjunction with adenylate/guanylate cyclases to regulate the key second messengers of G protein-coupled receptor signaling. Previous attempts to ...Cyclic nucleotide phosphodiesterases (PDEs) work in conjunction with adenylate/guanylate cyclases to regulate the key second messengers of G protein-coupled receptor signaling. Previous attempts to determine the full-length structure of PDE family members at high-resolution have been hindered by structural flexibility, especially in their linker regions and N- and C-terminal ends. Therefore, most structure-activity relationship studies have so far focused on truncated and conserved catalytic domains rather than the regulatory domains that allosterically govern the activity of most PDEs. Here, we used single-particle cryo-electron microscopy to determine the structure of the full-length PDE6αβ2γ complex. The final density map resolved at 3.4 Å reveals several previously unseen structural features, including a coiled N-terminal domain and the interface of PDE6γ subunits with the PDE6αβ heterodimer. Comparison of the PDE6αβ2γ complex with the closed state of PDE2A sheds light on the conformational changes associated with the allosteric activation of type I PDEs. | ||||||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_9297.map.gz | 1.2 MB | EMDB map data format | |
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Header (meta data) | emd-9297-v30.xml emd-9297.xml | 15.2 KB 15.2 KB | Display Display | EMDB header |
Images | emd_9297.png | 157.1 KB | ||
Masks | emd_9297_msk_1.map | 27 MB | Mask map | |
Filedesc metadata | emd-9297.cif.gz | 6.6 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-9297 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-9297 | HTTPS FTP |
-Validation report
Summary document | emd_9297_validation.pdf.gz | 422.5 KB | Display | EMDB validaton report |
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Full document | emd_9297_full_validation.pdf.gz | 422 KB | Display | |
Data in XML | emd_9297_validation.xml.gz | 5.8 KB | Display | |
Data in CIF | emd_9297_validation.cif.gz | 6.7 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-9297 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-9297 | HTTPS FTP |
-Related structure data
Related structure data | 6mzbMC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | |
EM raw data | EMPIAR-10228 (Title: Cryo-EM structure of phosphodiesterase 6 reveals insights into the allosteric regulation of type I phosphodiesterases Data size: 166.3 Data #1: Aligned micrographs of Phosphodiesterase 6 [micrographs - single frame]) |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_9297.map.gz / Format: CCP4 / Size: 27 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Cryo-EM structure of phosphodiesterase 6, primary map | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.058 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Mask #1
File | emd_9297_msk_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
-Entire : Phosphodiesterase 6
Entire | Name: Phosphodiesterase 6 |
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Components |
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-Supramolecule #1: Phosphodiesterase 6
Supramolecule | Name: Phosphodiesterase 6 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#3 |
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Source (natural) | Organism: Bos taurus (cattle) |
-Macromolecule #1: Rod cGMP-specific 3',5'-cyclic phosphodiesterase subunit beta
Macromolecule | Name: Rod cGMP-specific 3',5'-cyclic phosphodiesterase subunit beta type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO / EC number: 3',5'-cyclic-GMP phosphodiesterase |
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Source (natural) | Organism: Bos taurus (cattle) / Organ: Eye / Tissue: Retina |
Molecular weight | Theoretical: 98.449648 KDa |
Recombinant expression | Organism: Bos taurus (cattle) |
Sequence | String: MSLSEGQVHR FLDQNPGFAD QYFGRKLSPE DVANACEDGC PEGCTSFREL CQVEESAALF ELVQDMQENV NMERVVFKIL RRLCSILHA DRCSLFMYRQ RNGVAELATR LFSVQPDSVL EDCLVPPDSE IVFPLDIGVV GHVAQTKKMV NVQDVMECPH F SSFADELT ...String: MSLSEGQVHR FLDQNPGFAD QYFGRKLSPE DVANACEDGC PEGCTSFREL CQVEESAALF ELVQDMQENV NMERVVFKIL RRLCSILHA DRCSLFMYRQ RNGVAELATR LFSVQPDSVL EDCLVPPDSE IVFPLDIGVV GHVAQTKKMV NVQDVMECPH F SSFADELT DYVTRNILAT PIMNGKDVVA VIMAVNKLDG PCFTSEDEDV FLKYLNFGTL NLKIYHLSYL HNCETRRGQV LL WSANKVF EELTDIERQF HKAFYTVRAY LNCDRYSVGL LDMTKEKEFF DVWPVLMGEA QAYSGPRTPD GREILFYKVI DYI LHGKED IKVIPSPPAD HWALASGLPT YVAESGFICN IMNAPADEMF NFQEGPLDDS GWIVKNVLSM PIVNKKEEIV GVAT FYNRK DGKPFDEQDE VLMESLTQFL GWSVLNTDTY DKMNKLENRK DIAQDMVLYH VRCDREEIQL ILPTRERLGK EPADC EEDE LGKILKEVLP GPAKFDIYEF HFSDLECTEL ELVKCGIQMY YELGVVRKFQ IPQEVLVRFL FSVSKGYRRI TYHNWR HGF NVAQTMFTLL MTGKLKSYYT DLEAFAMVTA GLCHDIDHRG TNNLYQMKSQ NPLAKLHGSS ILERHHLEFG KFLLSEE TL NIYQNLNRRQ HEHVIHLMDI AIIATDLALY FKKRTMFQKI VDESKNYEDR KSWVEYLSLE TTRKEIVMAM MMTACDLS A ITKPWEVQSK VALLVAAEFW EQGDLERTVL DQQPIPMMDR NKAAELPKLQ VGFIDFVCTF VYKEFSRFHE EILPMFDRL QNNRKEWKAL ADEYEAKVKA LEEDQKKETT AKKVGTEICN GGPAPRSSTC RIL UniProtKB: Rod cGMP-specific 3',5'-cyclic phosphodiesterase subunit beta |
-Macromolecule #2: Rod cGMP-specific 3',5'-cyclic phosphodiesterase subunit alpha
Macromolecule | Name: Rod cGMP-specific 3',5'-cyclic phosphodiesterase subunit alpha type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO / EC number: 3',5'-cyclic-GMP phosphodiesterase |
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Source (natural) | Organism: Bos taurus (cattle) / Organ: Eye / Tissue: Retina |
Molecular weight | Theoretical: 99.461789 KDa |
Recombinant expression | Organism: Bos taurus (cattle) |
Sequence | String: MGEVTAEEVE KFLDSNVSFA KQYYNLRYRA KVISDLLGPR EAAVDFSNYH ALNSVEESEI IFDLLRDFQD NLQAEKCVFN VMKKLCFLL QADRMSLFMY RARNGIAELA TRLFNVHKDA VLEECLVAPD SEIVFPLDMG VVGHVALSKK IVNVPNTEED E HFCDFVDT ...String: MGEVTAEEVE KFLDSNVSFA KQYYNLRYRA KVISDLLGPR EAAVDFSNYH ALNSVEESEI IFDLLRDFQD NLQAEKCVFN VMKKLCFLL QADRMSLFMY RARNGIAELA TRLFNVHKDA VLEECLVAPD SEIVFPLDMG VVGHVALSKK IVNVPNTEED E HFCDFVDT LTEYQTKNIL ASPIMNGKDV VAIIMVVNKV DGPHFTENDE EILLKYLNFA NLIMKVFHLS YLHNCETRRG QI LLWSGSK VFEELTDIER QFHKALYTVR AFLNCDRYSV GLLDMTKQKE FFDVWPVLMG EAPPYAGPRT PDGREINFYK VID YILHGK EDIKVIPNPP PDHWALVSGL PTYVAQNGLI CNIMNAPSED FFAFQKEPLD ESGWMIKNVL SMPIVNKKEE IVGV ATFYN RKDGKPFDEM DETLMESLTQ FLGWSVLNPD TYELMNKLEN RKDIFQDMVK YHVKCDNEEI QTILKTREVY GKEPW ECEE EELAEILQGE LPDADKYEIN KFHFSDLPLT ELELVKCGIQ MYYELKVVDK FHIPQEALVR FMYSLSKGYR RITYHN WRH GFNVGQTMFS LLVTGKLKRY FTDLEALAMV TAAFCHDIDH RGTNNLYQMK SQNPLAKLHG SSILERHHLE FGKTLLR DE SLNIFQNLNR RQHEHAIHMM DIAIIATDLA LYFKKRTMFQ KIVDQSKTYE TQQEWTQYMM LDQTRKEIVM AMMMTACD L SAITKPWEVQ SKVALLVAAE FWEQGDLERT VLQQNPIPMM DRNKADELPK LQVGFIDFVC TFVYKEFSRF HEEITPMLD GITNNRKEWK ALADEYETKM KGLEEEKQKQ QAANQAAAGS QHGGKQPGGG PASKSCCVQ UniProtKB: Rod cGMP-specific 3',5'-cyclic phosphodiesterase subunit alpha |
-Macromolecule #3: Retinal rod rhodopsin-sensitive cGMP 3',5'-cyclic phosphodiestera...
Macromolecule | Name: Retinal rod rhodopsin-sensitive cGMP 3',5'-cyclic phosphodiesterase subunit gamma type: protein_or_peptide / ID: 3 / Number of copies: 2 / Enantiomer: LEVO / EC number: 3',5'-cyclic-GMP phosphodiesterase |
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Source (natural) | Organism: Bos taurus (cattle) / Organ: Eye / Tissue: Retina |
Molecular weight | Theoretical: 9.684229 KDa |
Recombinant expression | Organism: Bos taurus (cattle) |
Sequence | String: MNLEPPKAEI RSATRVMGGP VTPRKGPPKF KQRQTRQFKS KPPKKGVQGF GDDIPGMEGL GTDITVICPW EAFNHLELHE LAQYGII UniProtKB: Retinal rod rhodopsin-sensitive cGMP 3',5'-cyclic phosphodiesterase subunit gamma |
-Macromolecule #4: ZINC ION
Macromolecule | Name: ZINC ION / type: ligand / ID: 4 / Number of copies: 2 / Formula: ZN |
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Molecular weight | Theoretical: 65.409 Da |
-Macromolecule #5: MAGNESIUM ION
Macromolecule | Name: MAGNESIUM ION / type: ligand / ID: 5 / Number of copies: 2 / Formula: MG |
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Molecular weight | Theoretical: 24.305 Da |
-Macromolecule #6: GUANOSINE-3',5'-MONOPHOSPHATE
Macromolecule | Name: GUANOSINE-3',5'-MONOPHOSPHATE / type: ligand / ID: 6 / Number of copies: 2 / Formula: 35G |
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Molecular weight | Theoretical: 345.205 Da |
Chemical component information | ChemComp-35G: |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.5 |
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Grid | Model: Quantifoil R2/2 / Material: COPPER |
Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: SUPER-RESOLUTION / Average electron dose: 80.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: OTHER / Imaging mode: BRIGHT FIELD |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
-Image processing
Startup model | Type of model: NONE |
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Final reconstruction | Applied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 3.4 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 43597 |
Initial angle assignment | Type: ANGULAR RECONSTITUTION |
Final angle assignment | Type: ANGULAR RECONSTITUTION |