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Open data
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Basic information
| Entry | Database: EMDB / ID: EMD-9697 | |||||||||
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| Title | alpha-SNAP-SNARE subcomplex in the whole 20S complex | |||||||||
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Keywords | membrane fusion / ATPase / MEMBRANE PROTEIN | |||||||||
| Function / homology | Function and homology informationexocytic insertion of neurotransmitter receptor to postsynaptic membrane / trans-Golgi Network Vesicle Budding / regulation of delayed rectifier potassium channel activity / soluble NSF attachment protein activity / BLOC-1 complex / myosin head/neck binding / Lysosome Vesicle Biogenesis / zymogen granule membrane / positive regulation of glutamate secretion, neurotransmission / positive regulation of voltage-gated calcium channel activity ...exocytic insertion of neurotransmitter receptor to postsynaptic membrane / trans-Golgi Network Vesicle Budding / regulation of delayed rectifier potassium channel activity / soluble NSF attachment protein activity / BLOC-1 complex / myosin head/neck binding / Lysosome Vesicle Biogenesis / zymogen granule membrane / positive regulation of glutamate secretion, neurotransmission / positive regulation of voltage-gated calcium channel activity / synaptic vesicle fusion to presynaptic active zone membrane / storage vacuole / Other interleukin signaling / synaptobrevin 2-SNAP-25-syntaxin-1a-complexin II complex / synaptobrevin 2-SNAP-25-syntaxin-1a complex / synaptobrevin 2-SNAP-25-syntaxin-1a-complexin I complex / presynaptic dense core vesicle exocytosis / extrinsic component of presynaptic membrane / calcium ion-regulated exocytosis of neurotransmitter / Glutamate Neurotransmitter Release Cycle / Norepinephrine Neurotransmitter Release Cycle / Acetylcholine Neurotransmitter Release Cycle / regulation of establishment of protein localization / Serotonin Neurotransmitter Release Cycle / GABA synthesis, release, reuptake and degradation / positive regulation of catecholamine secretion / positive regulation of norepinephrine secretion / hormone secretion / Dopamine Neurotransmitter Release Cycle / eosinophil degranulation / regulation of synaptic vesicle priming / regulated exocytosis / Golgi Associated Vesicle Biogenesis / : / secretion by cell / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / calcium-ion regulated exocytosis / positive regulation of calcium ion-dependent exocytosis / short-term synaptic potentiation / SNARE complex disassembly / positive regulation of hormone secretion / positive regulation of intracellular protein transport / positive regulation of neurotransmitter secretion / ribbon synapse / regulation of vesicle-mediated transport / : / positive regulation of vesicle fusion / chloride channel inhibitor activity / Cargo recognition for clathrin-mediated endocytosis / regulation of exocytosis / Clathrin-mediated endocytosis / SNARE complex / SNAP receptor activity / vesicle fusion / actomyosin / LGI-ADAM interactions / positive regulation of synaptic plasticity / Golgi to plasma membrane protein transport / response to cholesterol / neurotransmitter secretion / ATP-dependent protein binding / insulin secretion / regulation of synaptic vesicle cycle / clathrin-coated vesicle / protein localization to membrane / syntaxin binding / regulation of neuron projection development / syntaxin-1 binding / Neutrophil degranulation / endosomal transport / regulation of synaptic vesicle recycling / myosin binding / regulation of synapse assembly / SNARE complex assembly / neuron projection terminus / exocytosis / response to gravity / synaptic vesicle priming / neurotransmitter transport / positive regulation of exocytosis / associative learning / response to glucose / synaptic vesicle exocytosis / modulation of excitatory postsynaptic potential / protein sumoylation / voltage-gated potassium channel activity / postsynaptic cytosol / axonal growth cone / long-term memory / synaptic vesicle endocytosis / calcium channel inhibitor activity / axonogenesis / vesicle-mediated transport / photoreceptor inner segment / voltage-gated potassium channel complex / somatodendritic compartment / presynaptic active zone membrane / endomembrane system / secretory granule / acrosomal vesicle Similarity search - Function | |||||||||
| Biological species | ![]() ![]() | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.9 Å | |||||||||
Authors | Huang X / Sun S | |||||||||
Citation | Journal: Sci Adv / Year: 2019Title: Mechanistic insights into the SNARE complex disassembly. Authors: Xuan Huang / Shan Sun / Xiaojing Wang / Fenghui Fan / Qiang Zhou / Shan Lu / Yong Cao / Qiu-Wen Wang / Meng-Qiu Dong / Jun Yao / Sen-Fang Sui / ![]() Abstract: NSF (-ethylmaleimide-sensitive factor) and α-SNAP (α-soluble NSF attachment protein) bind to the SNARE (soluble NSF attachment protein receptor) complex, the minimum machinery to mediate membrane ...NSF (-ethylmaleimide-sensitive factor) and α-SNAP (α-soluble NSF attachment protein) bind to the SNARE (soluble NSF attachment protein receptor) complex, the minimum machinery to mediate membrane fusion, to form a 20S complex, which disassembles the SNARE complex for reuse. We report the cryo-EM structures of the α-SNAP-SNARE subcomplex and the NSF-D1D2 domain in the 20S complex at 3.9- and 3.7-Å resolutions, respectively. Combined with the biochemical and electrophysiological analyses, we find that α-SNAPs use R116 through electrostatic interactions and L197 through hydrophobic interactions to apply force mainly on two positions of the VAMP protein to execute disassembly process. Furthermore, we define the interaction between the amino terminus of the SNARE helical bundle and the pore loop of the NSF-D1 domain and demonstrate its essential role as a potential anchor for SNARE complex disassembly. Our studies provide a rotation model of α-SNAP-mediated disassembly of the SNARE complex. | |||||||||
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Structure visualization
| Movie |
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| Structure viewer | EM map: SurfView Molmil Jmol/JSmol |
| Supplemental images |
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Downloads & links
-EMDB archive
| Map data | emd_9697.map.gz | 14.6 MB | EMDB map data format | |
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| Header (meta data) | emd-9697-v30.xml emd-9697.xml | 13.6 KB 13.6 KB | Display Display | EMDB header |
| Images | emd_9697.png | 185.1 KB | ||
| Filedesc metadata | emd-9697.cif.gz | 5.8 KB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-9697 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-9697 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 6ip1MC ![]() 9698C ![]() 9723C ![]() 9724C ![]() 9725C ![]() 9726C ![]() 9727C ![]() 9728C ![]() 9729C ![]() 6ip2C M: atomic model generated by this map C: citing same article ( |
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| Similar structure data |
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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_9697.map.gz / Format: CCP4 / Size: 15.6 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: 1.30654 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
-Entire : alpha-SNAP-SNARE subcomplex in the whole 20S complex
| Entire | Name: alpha-SNAP-SNARE subcomplex in the whole 20S complex |
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| Components |
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-Supramolecule #1: alpha-SNAP-SNARE subcomplex in the whole 20S complex
| Supramolecule | Name: alpha-SNAP-SNARE subcomplex in the whole 20S complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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| Source (natural) | Organism: ![]() |
-Macromolecule #1: Vesicle-associated membrane protein 2
| Macromolecule | Name: Vesicle-associated membrane protein 2 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: ![]() |
| Molecular weight | Theoretical: 10.550823 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: GSHMSATAAT VPPAAPAGEG GPPAPPPNLT SNRRLQQTQA QVDEVVDIMR VNVDKVLERD QKLSELDDRA DALQAGASQF ETSAAKLKR KYWWKNLK UniProtKB: Vesicle-associated membrane protein 2 |
-Macromolecule #2: Syntaxin-1A
| Macromolecule | Name: Syntaxin-1A / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: ![]() |
| Molecular weight | Theoretical: 29.363736 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: GSKDRTQELR TAKDSDDDDD VTVTVDRDRF MDEFFEQVEE IRGFIDKIAE NVEEVKRKHS AILASPNPDE KTKEELEELM SDIKKTANK VRSKLKSIEQ SIEQEEGLNR SSADLRIRKT QHSTLSRKFV EVMSEYNATQ SDYRERCKGR IQRQLEITGR T TTSEELED ...String: GSKDRTQELR TAKDSDDDDD VTVTVDRDRF MDEFFEQVEE IRGFIDKIAE NVEEVKRKHS AILASPNPDE KTKEELEELM SDIKKTANK VRSKLKSIEQ SIEQEEGLNR SSADLRIRKT QHSTLSRKFV EVMSEYNATQ SDYRERCKGR IQRQLEITGR T TTSEELED MLESGNPAIF ASGIIMDSSI SKQALSEIET RHSEIIKLEN SIRELHDMFM DMAMLVESQG EMIDRIEYNV EH AVDYVER AVSDTKK UniProtKB: Syntaxin-1A |
-Macromolecule #3: Synaptosomal-associated protein 25
| Macromolecule | Name: Synaptosomal-associated protein 25 / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: ![]() |
| Molecular weight | Theoretical: 11.571022 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: GSMAEDADMR NELEEMQRRA DQLADESLES TRRMLQLVEE SKDAGIRTLV MLDEQGEQLE RIEEGMDQIN KDMKEAEKNL TDLGKFCGL CVCPCNKLKS SDA UniProtKB: Synaptosomal-associated protein 25 |
-Macromolecule #4: Synaptosomal-associated protein 25
| Macromolecule | Name: Synaptosomal-associated protein 25 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: ![]() |
| Molecular weight | Theoretical: 9.277316 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: GSQMAISGGF IRRVTNDARE NEMDENLEQV SGIIGNLRHM ALDMGNEIDT QNRQIDRIME KADSNKTRID EANQRATKML GSG UniProtKB: Synaptosomal-associated protein 25 |
-Macromolecule #5: Alpha-soluble NSF attachment protein
| Macromolecule | Name: Alpha-soluble NSF attachment protein / type: protein_or_peptide / ID: 5 / Number of copies: 4 / Enantiomer: LEVO |
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| Source (natural) | Organism: ![]() |
| Molecular weight | Theoretical: 34.795332 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: GSMRGSHHHH HHGSMDNSGK EAEAMALLAE AERKVKNSQS FFSGLFGGSS KIEEACEIYA RAANMFKMAK NWSAAGSAFC QAAQLHLQL QSKHDAATCF VDAGNAFKKA DPQEAINCLM RAIEIYTDMG RFTIAAKHHI SIAEIYETEL VDIEKAIAHY E QSADYYKG ...String: GSMRGSHHHH HHGSMDNSGK EAEAMALLAE AERKVKNSQS FFSGLFGGSS KIEEACEIYA RAANMFKMAK NWSAAGSAFC QAAQLHLQL QSKHDAATCF VDAGNAFKKA DPQEAINCLM RAIEIYTDMG RFTIAAKHHI SIAEIYETEL VDIEKAIAHY E QSADYYKG EESNSSANKC LLKVAGYAAQ LEQYQKAIDI YEQVGTNAMD SPLLKYSAKD YFFKAALCHF CIDMLNAKLA VQ KYEELFP AFSDSRECKL MKKLLEAHEE QNVDSYTEAV KEYDSISRLD QWLTTMLLRI KKTIQGDEED LR UniProtKB: NAPA protein |
-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: 7.4 |
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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: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 50.0 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
| Startup model | Type of model: EMDB MAP |
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| Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.9 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 97910 |
| Initial angle assignment | Type: RANDOM ASSIGNMENT |
| Final angle assignment | Type: MAXIMUM LIKELIHOOD |
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