+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-33276 | ||||||||||||
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Title | Cryo-EM structure of human pannexin 2 | ||||||||||||
Map data | |||||||||||||
Sample |
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Function / homology | Function and homology information Electric Transmission Across Gap Junctions / wide pore channel activity / positive regulation of interleukin-1 production / gap junction / monoatomic cation transport / monoatomic ion transmembrane transport / response to ischemia / cell-cell signaling / structural molecule activity / plasma membrane / cytoplasm Similarity search - Function | ||||||||||||
Biological species | Homo sapiens (human) | ||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.44 Å | ||||||||||||
Authors | Hang Z / Huawei Z / Daping W | ||||||||||||
Funding support | China, 3 items
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Citation | Journal: Nat Commun / Year: 2023 Title: Cryo-EM structure of human heptameric pannexin 2 channel Authors: Zhang H / Wang S / Zhang Z / Hou M / Du C / Zhao Z / Vogel H / Li Z / Yan K / Zhang X / Lu J / Liang Y / Yuan S / Wang D / Zhang H | ||||||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_33276.map.gz | 85.8 MB | EMDB map data format | |
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Header (meta data) | emd-33276-v30.xml emd-33276.xml | 15.1 KB 15.1 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_33276_fsc.xml | 13.2 KB | Display | FSC data file |
Images | emd_33276.png | 73.1 KB | ||
Others | emd_33276_half_map_1.map.gz emd_33276_half_map_2.map.gz | 84.3 MB 84.3 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-33276 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-33276 | HTTPS FTP |
-Related structure data
Related structure data | 7xlbMC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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-Map
File | Download / File: emd_33276.map.gz / Format: CCP4 / Size: 91.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||
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Voxel size | X=Y=Z: 0.92 Å | ||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #1
File | emd_33276_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_33276_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
-Entire : Heptamer of human pannexin 2 channel
Entire | Name: Heptamer of human pannexin 2 channel |
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Components |
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-Supramolecule #1: Heptamer of human pannexin 2 channel
Supramolecule | Name: Heptamer of human pannexin 2 channel / type: complex / ID: 1 / Chimera: Yes / Parent: 0 / Macromolecule list: all |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 323 KDa |
-Macromolecule #1: Pannexin-2
Macromolecule | Name: Pannexin-2 / type: protein_or_peptide / ID: 1 / Number of copies: 7 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 46.301543 KDa |
Recombinant expression | Organism: Homo sapiens (human) |
Sequence | String: MHHLLEQSAD MATALLAGEK LRELILPGAQ DDKAGALAAL LLQLKLELPF DRVVTIGTVL VPILLVTLVF TKNFAEEPIY CYTPHNFTR DQALYARGYC WTELRDALPG VDASLWPSLF EHKFLPYALL AFAAIMYVPA LGWEFLASTR LTSELNFLLQ E IDNCYHRA ...String: MHHLLEQSAD MATALLAGEK LRELILPGAQ DDKAGALAAL LLQLKLELPF DRVVTIGTVL VPILLVTLVF TKNFAEEPIY CYTPHNFTR DQALYARGYC WTELRDALPG VDASLWPSLF EHKFLPYALL AFAAIMYVPA LGWEFLASTR LTSELNFLLQ E IDNCYHRA AEGRAPKIEK QIQSKGPGIT EREKREIIEN AEKEKSPEQN LFEKYLERRG RSNFLAKLYL ARHVLILLLS AV PISYLCT YYATQKQNEF TCALGASPDG AAGAGPAVRV SCKLPSVQLQ RIIAGVDIVL LCVMNLIILV NLIHLFIFRK SNF IFDKLH KVGIKTRRQW RRSQFCDINI LAMFCNENRD HIKSLNRLDF ITNESDLMYD NVVRQLLAAL AQSNHDATPT VRDS GVQTV DPSAN |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Concentration | 10 mg/mL | ||||||||||||
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Buffer | pH: 7.6 Component:
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Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy / Nominal defocus max: 2.5 µm / Nominal defocus min: 1.0 µm |
Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 50.0 e/Å2 |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |