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- EMDB-29926: Domoate-bound GluK2 kainate receptor in partially-open conformation 1 -
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Open data
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Basic information
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Title | Domoate-bound GluK2 kainate receptor in partially-open conformation 1 | |||||||||
![]() | Domoate-bound GluK2 kainate receptor in partially-open conformation 1 | |||||||||
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![]() | ion channel / glutamate kainate receptor 2 / homotetramer / MEMBRANE PROTEIN / partial agonist / gating mechanism | |||||||||
Function / homology | ![]() mossy fiber rosette / detection of cold stimulus involved in thermoception / Activation of Na-permeable kainate receptors / kainate selective glutamate receptor complex / Activation of Ca-permeable Kainate Receptor / negative regulation of synaptic transmission, glutamatergic / regulation of short-term neuronal synaptic plasticity / inhibitory postsynaptic potential / glutamate receptor activity / ubiquitin conjugating enzyme binding ...mossy fiber rosette / detection of cold stimulus involved in thermoception / Activation of Na-permeable kainate receptors / kainate selective glutamate receptor complex / Activation of Ca-permeable Kainate Receptor / negative regulation of synaptic transmission, glutamatergic / regulation of short-term neuronal synaptic plasticity / inhibitory postsynaptic potential / glutamate receptor activity / ubiquitin conjugating enzyme binding / receptor clustering / modulation of excitatory postsynaptic potential / regulation of JNK cascade / kainate selective glutamate receptor activity / ionotropic glutamate receptor complex / extracellularly glutamate-gated ion channel activity / neuronal action potential / behavioral fear response / positive regulation of synaptic transmission / glutamate-gated receptor activity / glutamate-gated calcium ion channel activity / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / presynaptic modulation of chemical synaptic transmission / dendrite cytoplasm / hippocampal mossy fiber to CA3 synapse / regulation of membrane potential / SNARE binding / excitatory postsynaptic potential / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / synaptic transmission, glutamatergic / PDZ domain binding / postsynaptic density membrane / regulation of long-term neuronal synaptic plasticity / modulation of chemical synaptic transmission / terminal bouton / intracellular calcium ion homeostasis / positive regulation of neuron apoptotic process / presynaptic membrane / scaffold protein binding / chemical synaptic transmission / postsynaptic membrane / perikaryon / neuron apoptotic process / negative regulation of neuron apoptotic process / postsynaptic density / axon / neuronal cell body / glutamatergic synapse / ubiquitin protein ligase binding / synapse / dendrite / identical protein binding / membrane / plasma membrane Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 4.1 Å | |||||||||
![]() | Bogdanovic N / Tajima N | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Structural basis for kainate receptor activation by a partial agonist Authors: Bogdanovic N / Tajima N | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 25.2 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 21 KB 21 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 14.9 KB | Display | ![]() |
Images | ![]() | 73.4 KB | ||
Masks | ![]() | 282.6 MB | ![]() | |
Filedesc metadata | ![]() | 7 KB | ||
Others | ![]() ![]() ![]() | 6.6 MB 225.3 MB 225.7 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8gc2MC ![]() 8gc3C ![]() 8gc4C ![]() 8gc5C 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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Annotation | Domoate-bound GluK2 kainate receptor in partially-open conformation 1 | ||||||||||||||||||||
Voxel size | X=Y=Z: 1.06 Å | ||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
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-Additional map: Additional Map
File | emd_29926_additional_1.map | ||||||||||||
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Annotation | Additional Map | ||||||||||||
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-Half map: Half Map 1
File | emd_29926_half_map_1.map | ||||||||||||
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Annotation | Half Map 1 | ||||||||||||
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-Half map: Half Map 2
File | emd_29926_half_map_2.map | ||||||||||||
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Annotation | Half Map 2 | ||||||||||||
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Density Histograms |
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Sample components
-Entire : Homotetrameric GluK2 bound with domoate state 1
Entire | Name: Homotetrameric GluK2 bound with domoate state 1 |
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Components |
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-Supramolecule #1: Homotetrameric GluK2 bound with domoate state 1
Supramolecule | Name: Homotetrameric GluK2 bound with domoate state 1 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1 Details: Tetramer isolated and dyalised extensively. The domoate was applied prior to grid freezing. |
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Source (natural) | Organism: ![]() ![]() |
-Macromolecule #1: Glutamate receptor ionotropic, kainate 2
Macromolecule | Name: Glutamate receptor ionotropic, kainate 2 / type: protein_or_peptide / ID: 1 / Number of copies: 4 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 98.883469 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: HVLRFGGIFE YVESGPMGAE ELAFRFAVNT INRNRTLLPN TTLTYDTQKI NLYDSFEASK KACDQLSLGV AAIFGPSHSS SANAVQSIC NALGVPHIQT RWKHQVSDNK DSFYVSLYPD FSSLSRAILD LVQFFKWKTV TVVYDDSTGL IRLQELIKAP S RYNLRLKI ...String: HVLRFGGIFE YVESGPMGAE ELAFRFAVNT INRNRTLLPN TTLTYDTQKI NLYDSFEASK KACDQLSLGV AAIFGPSHSS SANAVQSIC NALGVPHIQT RWKHQVSDNK DSFYVSLYPD FSSLSRAILD LVQFFKWKTV TVVYDDSTGL IRLQELIKAP S RYNLRLKI RQLPADTKDA KPLLKEMKRG KEFHVIFDCS HEMAAGILKQ ALAMGMMTEY YHYIFTTLDL FALDVEPYRY SG VNMTGFR ILNTENTQVS SIIEKWSMER LQAPPKPDSG LLDGFMTTDA ALMYDAVHVV SVAVQQFPQM TVSSLQCNRH KPW RFGTRF MSLIKEAHWE GLTGRITFNK TNGLRTDFDL DVISLKEEGL EKIGTWDPAS GLNMTESQKG KPANITDSLS NRSL IVTTI LEEPYVLFKK SDKPLYGNDR FEGYCIDLLR ELSTILGFTY EIRLVEDGKY GAQDDVNGQW NGMVRELIDH KADLA VAPL AITYVREKVI DFSKPFMTLG ISILYRKPNG TNPGVFSFLN PLSPDIWMYV LLAYLGVSVV LFVIARFSPY EWYNPH PSN PDSDVVENNF TLLNSFWFGV GALMQQGSEL MPKALSTRIV GGIWWFFTLI IISSYTANLA AFLTVERMES PIDSADD LA KQTKIEYGAV EDGATMTFFK KSKISTYDKM WAFMSSRRQS VLVKSNEEGI QRVLTSDYAF LMESTTIEFV TQRNCNLT Q IGGLIDSKGY GVGTPMGSPY RDKITIAILQ LQEEGKLHMM KEKWWRGNGC PEEESKEASA LGVQNIGGIF IVLAAGLVL SVFVAVGEFL YKSKKNAQLE KRSFCSAMVE ELRMSLKCQR RLKHKPQAPV IVKTEEVINM HTFNDRRLPG KETMA UniProtKB: Glutamate receptor ionotropic, kainate 2 |
-Macromolecule #6: 2-acetamido-2-deoxy-beta-D-glucopyranose
Macromolecule | Name: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 6 / Number of copies: 8 / Formula: NAG |
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Molecular weight | Theoretical: 221.208 Da |
Chemical component information | ![]() ChemComp-NAG: |
-Macromolecule #7: (2S,3S,4S)-2-CARBOXY-4-[(1Z,3E,5R)-5-CARBOXY-1-METHYL-1,3-HEXADIE...
Macromolecule | Name: (2S,3S,4S)-2-CARBOXY-4-[(1Z,3E,5R)-5-CARBOXY-1-METHYL-1,3-HEXADIENYL]-3-PYRROLIDINEACETIC ACID type: ligand / ID: 7 / Number of copies: 3 / Formula: DOQ |
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Molecular weight | Theoretical: 311.33 Da |
Chemical component information | ![]() ChemComp-DOQ: |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 3.5 mg/mL |
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Buffer | pH: 8 / Component - Concentration: 150.0 mmol / Component - Formula: NaCl / Component - Name: sodium chloride / Details: 50 mM Tris/HCl 150 mM NaCl 1mM DDM pH 8.0 |
Grid | Model: Quantifoil R1.2/1.3 / Material: GOLD / Mesh: 300 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 60 sec. |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277.15 K / Instrument: FEI VITROBOT MARK IV |
Details | The sample was isolated from SEC and concentrated. Monodispersity of the final sample determined by the analytical HPLC, S200i column. |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Specialist optics | Energy filter - Name: GIF Bioquantum / Energy filter - Slit width: 20 eV |
Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Number grids imaged: 1 / Number real images: 12486 / Average electron dose: 60.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: SPOT SCAN / Imaging mode: OTHER / Cs: 2.7 mm / Nominal defocus max: 2.5 µm / Nominal defocus min: 1.0 µm / Nominal magnification: 81000 |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
-Atomic model buiding 1
Refinement | Space: REAL / Protocol: RIGID BODY FIT / Overall B value: 30 / Target criteria: 0.85 |
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Output model | ![]() PDB-8gc2: |