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Yorodumi- EMDB-28267: Phospholipase C beta 3 (PLCb3) in complex with Gbg on liposomes -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-28267 | |||||||||
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Title | Phospholipase C beta 3 (PLCb3) in complex with Gbg on liposomes | |||||||||
Map data | final sharpened map | |||||||||
Sample |
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Keywords | PIP2 degradation / IP3 production / DAG production / G protein signaling / HYDROLASE | |||||||||
Function / homology | Function and homology information phosphoinositide phospholipase C / Fatty Acids bound to GPR40 (FFAR1) regulate insulin secretion / Acetylcholine regulates insulin secretion / phosphatidylinositol metabolic process / PLC beta mediated events / regulation of systemic arterial blood pressure / phospholipase C activity / phosphatidylinositol phospholipase C activity / postsynaptic cytosol / Synthesis of IP3 and IP4 in the cytosol ...phosphoinositide phospholipase C / Fatty Acids bound to GPR40 (FFAR1) regulate insulin secretion / Acetylcholine regulates insulin secretion / phosphatidylinositol metabolic process / PLC beta mediated events / regulation of systemic arterial blood pressure / phospholipase C activity / phosphatidylinositol phospholipase C activity / postsynaptic cytosol / Synthesis of IP3 and IP4 in the cytosol / phosphatidylinositol-mediated signaling / lipid catabolic process / release of sequestered calcium ion into cytosol / molecular function activator activity / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine receptor signaling pathway / G-protein activation / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Prostacyclin signalling through prostacyclin receptor / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / photoreceptor disc membrane / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / adenylate cyclase-activating dopamine receptor signaling pathway / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / cellular response to prostaglandin E stimulus / Inactivation, recovery and regulation of the phototransduction cascade / G-protein beta-subunit binding / heterotrimeric G-protein complex / G alpha (12/13) signalling events / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / GTPase binding / retina development in camera-type eye / Ca2+ pathway / phospholipase C-activating G protein-coupled receptor signaling pathway / fibroblast proliferation / G alpha (i) signalling events / G alpha (s) signalling events / G alpha (q) signalling events / Ras protein signal transduction / cell population proliferation / Extra-nuclear estrogen signaling / molecular adaptor activity / calmodulin binding / cadherin binding / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / calcium ion binding / synapse / protein-containing complex binding / signal transduction / protein-containing complex / extracellular exosome / membrane / nucleus / plasma membrane / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | Homo sapiens (human) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.5 Å | |||||||||
Authors | Falzone ME / MacKinnon R | |||||||||
Funding support | United States, 2 items
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Citation | Journal: Proc Natl Acad Sci U S A / Year: 2023 Title: activates hydrolysis by recruiting and orienting on the membrane surface. Authors: Maria E Falzone / Roderick MacKinnon / Abstract: catalyze the hydrolysis of phosphatidylinositol 4, 5-bisphosphate [Formula: see text] into [Formula: see text] [Formula: see text] and [Formula: see text] [Formula: see text]. [Formula: see text] ... catalyze the hydrolysis of phosphatidylinositol 4, 5-bisphosphate [Formula: see text] into [Formula: see text] [Formula: see text] and [Formula: see text] [Formula: see text]. [Formula: see text] regulates the activity of many membrane proteins, while and lead to increased intracellular Ca levels and activate protein kinase C, respectively. are regulated by G protein-coupled receptors through direct interaction with [Formula: see text] and [Formula: see text] and are aqueous-soluble enzymes that must bind to the cell membrane to act on their lipid substrate. This study addresses the mechanism by which [Formula: see text] activates 3. We show that 3 functions as a slow Michaelis-Menten enzyme ( [Formula: see text] ) on membrane surfaces. We used membrane partitioning experiments to study the solution-membrane localization equilibrium of 3. Its partition coefficient is such that only a small quantity of 3 exists in the membrane in the absence of [Formula: see text] . When [Formula: see text] is present, equilibrium binding on the membrane surface increases 3 in the membrane, increasing [Formula: see text] in proportion. Atomic structures on membrane vesicle surfaces show that two [Formula: see text] anchor 3 with its catalytic site oriented toward the membrane surface. Taken together, the enzyme kinetic, membrane partitioning, and structural data show that [Formula: see text] activates by increasing its concentration on the membrane surface and orienting its catalytic core to engage [Formula: see text] . This principle of activation explains rapid stimulated catalysis with low background activity, which is essential to the biological processes mediated by [Formula: see text], and . | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_28267.map.gz | 146.6 MB | EMDB map data format | |
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Header (meta data) | emd-28267-v30.xml emd-28267.xml | 27 KB 27 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_28267_fsc.xml | 11.3 KB | Display | FSC data file |
Images | emd_28267.png | 67 KB | ||
Filedesc metadata | emd-28267.cif.gz | 7.2 KB | ||
Others | emd_28267_additional_1.map.gz emd_28267_additional_2.map.gz emd_28267_half_map_1.map.gz emd_28267_half_map_2.map.gz | 75.8 MB 73.8 MB 143.6 MB 143.6 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-28267 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-28267 | HTTPS FTP |
-Validation report
Summary document | emd_28267_validation.pdf.gz | 1.2 MB | Display | EMDB validaton report |
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Full document | emd_28267_full_validation.pdf.gz | 1.2 MB | Display | |
Data in XML | emd_28267_validation.xml.gz | 20.2 KB | Display | |
Data in CIF | emd_28267_validation.cif.gz | 26 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-28267 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-28267 | HTTPS FTP |
-Related structure data
Related structure data | 8emwMC 8emvC 8emxC C: citing same article (ref.) M: atomic model generated by this map |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_28267.map.gz / Format: CCP4 / Size: 155.3 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Annotation | final sharpened map | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.839 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Additional map: final unsharpened map
File | emd_28267_additional_1.map | ||||||||||||
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Annotation | final unsharpened map | ||||||||||||
Projections & Slices |
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Density Histograms |
-Additional map: reconstruction with membrane
File | emd_28267_additional_2.map | ||||||||||||
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Annotation | reconstruction with membrane | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_28267_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_28267_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
+Entire : Phospholipase C beta 3 (PLCb3) in complex with Gbg on liposomes
+Supramolecule #1: Phospholipase C beta 3 (PLCb3) in complex with Gbg on liposomes
+Supramolecule #2: phospholipase C beta 3 (PLCb3)
+Supramolecule #3: human G protein beta subunit 1 (Gb1)
+Supramolecule #4: bovine G protein gamma subunit 2 (Gg2)
+Supramolecule #5: human G protein beta subunit 1 (Gb1)
+Supramolecule #6: bovine G protein gamma subunit 2 (Gg2)
+Macromolecule #1: 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase beta-3
+Macromolecule #2: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
+Macromolecule #3: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
+Macromolecule #4: CALCIUM ION
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.4 |
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Grid | Model: Quantifoil R1.2/1.3 / Material: GOLD / Mesh: 400 / Support film - Material: CARBON / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 22 sec. |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 295 K / Instrument: FEI VITROBOT MARK IV |
Details | Gbg was reconstituted at 1:15 (wt/wt). Final lipid concentration was 17.5 mM. PLCb3 concentration was 0.5 mg/mL |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Number grids imaged: 2 / Number real images: 27454 / Average exposure time: 4.194 sec. / Average electron dose: 60.0 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: 2.5 µm / Nominal defocus min: 1.5 µm |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |