[English] 日本語
Yorodumi- EMDB-48276: Cryo-EM reconstruction of PI3KC3-C1 in complex with Human RAB1A(Q70L) -
+
Open data
-
Basic information
| Entry | ![]() | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Title | Cryo-EM reconstruction of PI3KC3-C1 in complex with Human RAB1A(Q70L) | |||||||||
Map data | Composite map, produced through VOP maximum command | |||||||||
Sample |
| |||||||||
Keywords | Complex / GTPase / GTP-binding / Autophagy / Kinase / Lipid Kinase / SIGNALING PROTEIN | |||||||||
| Function / homology | Function and homology informationextrinsic component of omegasome membrane / phosphatidylinositol 3-kinase inhibitor activity / regulation of triglyceride metabolic process / positive regulation of glycoprotein metabolic process / extrinsic component of phagophore assembly site membrane / nucleus-vacuole junction / cellular response to aluminum ion / positive regulation of protein lipidation / postsynaptic endosome / growth hormone secretion ...extrinsic component of omegasome membrane / phosphatidylinositol 3-kinase inhibitor activity / regulation of triglyceride metabolic process / positive regulation of glycoprotein metabolic process / extrinsic component of phagophore assembly site membrane / nucleus-vacuole junction / cellular response to aluminum ion / positive regulation of protein lipidation / postsynaptic endosome / growth hormone secretion / Toll Like Receptor 9 (TLR9) Cascade / Synthesis of PIPs at the late endosome membrane / positive regulation of stress granule assembly / phosphatidylinositol 3-kinase complex, class III / cellular response to oxygen-glucose deprivation / Synthesis of PIPs at the early endosome membrane / phosphatidylinositol 3-kinase complex, class III, type II / phosphatidylinositol 3-kinase complex, class III, type I / host-mediated activation of viral genome replication / response to mitochondrial depolarisation / presynaptic endosome / positive regulation of attachment of mitotic spindle microtubules to kinetochore / mitochondria-associated endoplasmic reticulum membrane contact site / COPII-coated vesicle cargo loading / negative regulation of lysosome organization / engulfment of apoptotic cell / Synthesis of PIPs at the Golgi membrane / phosphatidylinositol kinase activity / regulation of protein complex stability / positive regulation of autophagosome assembly / early endosome to late endosome transport / response to L-leucine / cytoplasmic side of mitochondrial outer membrane / negative regulation of autophagosome assembly / protein localization to phagophore assembly site / phosphatidylinositol 3-kinase regulator activity / receptor catabolic process / phagophore assembly site membrane / protein targeting to vacuole / RAB geranylgeranylation / protein targeting to lysosome / SMAD protein signal transduction / late endosome to vacuole transport / endosome organization / melanosome transport / pexophagy / RAB GEFs exchange GTP for GDP on RABs / Golgi Cisternae Pericentriolar Stack Reorganization / vesicle transport along microtubule / phagophore assembly site / Translation of Replicase and Assembly of the Replication Transcription Complex / phosphatidylinositol-3-phosphate biosynthetic process / COPII-mediated vesicle transport / cellular response to nitrogen starvation / negative regulation of programmed cell death / phosphatidylinositol 3-kinase / COPI-dependent Golgi-to-ER retrograde traffic / lysosome organization / 1-phosphatidylinositol-3-kinase activity / post-transcriptional regulation of gene expression / response to vitamin E / mitotic metaphase chromosome alignment / cytoplasmic pattern recognition receptor signaling pathway / endosome to lysosome transport / transport vesicle membrane / virion assembly / response to iron(II) ion / positive regulation of cardiac muscle hypertrophy / Macroautophagy / phosphatidylinositol-mediated signaling / autophagosome membrane docking / RSV-host interactions / p38MAPK cascade / Golgi organization / phosphatidylinositol phosphate biosynthetic process / negative regulation of protein phosphorylation / autolysosome / autophagosome membrane / PI3K Cascade / axoneme / autophagosome assembly / autophagosome maturation / amyloid-beta metabolic process / RHO GTPases Activate NADPH Oxidases / synaptic vesicle endocytosis / regulation of macroautophagy / endoplasmic reticulum to Golgi vesicle-mediated transport / cellular defense response / neuron development / phosphatidylinositol 3-kinase binding / cellular response to glucose starvation / mitophagy / positive regulation of intrinsic apoptotic signaling pathway / COPI-mediated anterograde transport / intercellular bridge / phagocytic vesicle / vesicle-mediated transport / JNK cascade / protein-membrane adaptor activity / positive regulation of autophagy Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 2.73 Å | |||||||||
Authors | Cook ASI / Hurley JH / Chen M | |||||||||
| Funding support | United States, 1 items
| |||||||||
Citation | Journal: Science / Year: 2025Title: Structural pathway for PI3-kinase regulation by VPS15 in autophagy. Authors: Annan S I Cook / Minghao Chen / Thanh N Nguyen / Ainara Claveras Cabezudo / Grace Khuu / Shanlin Rao / Samantha N Garcia / Mingxuan Yang / Anthony T Iavarone / Xuefeng Ren / Michael Lazarou ...Authors: Annan S I Cook / Minghao Chen / Thanh N Nguyen / Ainara Claveras Cabezudo / Grace Khuu / Shanlin Rao / Samantha N Garcia / Mingxuan Yang / Anthony T Iavarone / Xuefeng Ren / Michael Lazarou / Gerhard Hummer / James H Hurley / ![]() Abstract: The class III phosphatidylinositol-3 kinase complexes I and II (PI3KC3-C1 and PI3KC3-C2) have vital roles in macroautophagy and endosomal maturation, respectively. We elucidated a structural pathway ...The class III phosphatidylinositol-3 kinase complexes I and II (PI3KC3-C1 and PI3KC3-C2) have vital roles in macroautophagy and endosomal maturation, respectively. We elucidated a structural pathway of enzyme activation through cryo-electron microscopy analysis of PI3KC3-C1. The inactive conformation of the VPS15 pseudokinase stabilizes the inactive conformation, sequestering its -myristate in the N-lobe of the pseudokinase. Upon activation, the myristate is liberated such that the VPS34 lipid kinase catalyzes phosphatidylinositol-3 phosphate production on membranes. The VPS15 pseudokinase domain binds tightly to guanosine triphosphate and stabilizes a web of interactions to autoinhibit the cytosolic complex and promote activation upon membrane binding. These findings show in atomistic detail how the VPS34 lipid kinase is activated in the context of a complete PI3K complex. | |||||||||
| History |
|
-
Structure visualization
| Supplemental images |
|---|
-
Downloads & links
-EMDB archive
| Map data | emd_48276.map.gz | 226.6 MB | EMDB map data format | |
|---|---|---|---|---|
| Header (meta data) | emd-48276-v30.xml emd-48276.xml | 28.1 KB 28.1 KB | Display Display | EMDB header |
| Images | emd_48276.png | 39.6 KB | ||
| Filedesc metadata | emd-48276.cif.gz | 9.4 KB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-48276 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-48276 | HTTPS FTP |
-Validation report
| Summary document | emd_48276_validation.pdf.gz | 493 KB | Display | EMDB validaton report |
|---|---|---|---|---|
| Full document | emd_48276_full_validation.pdf.gz | 492.6 KB | Display | |
| Data in XML | emd_48276_validation.xml.gz | 7.1 KB | Display | |
| Data in CIF | emd_48276_validation.cif.gz | 8.3 KB | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-48276 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-48276 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 9mhfMC ![]() 9mhgC ![]() 9mhhC C: citing same article ( M: atomic model generated by this map |
|---|---|
| Similar structure data | Similarity search - Function & homology F&H Search |
-
Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
|---|---|
| Related items in Molecule of the Month |
-
Map
| File | Download / File: emd_48276.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Annotation | Composite map, produced through VOP maximum command | ||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.048 Å | ||||||||||||||||||||||||||||||||||||
| Density |
| ||||||||||||||||||||||||||||||||||||
| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
|
-Supplemental data
-
Sample components
+Entire : Phosphatidylinositol-3 kinase class III complex I bound to RAB1A
+Supramolecule #1: Phosphatidylinositol-3 kinase class III complex I bound to RAB1A
+Macromolecule #1: Phosphoinositide 3-kinase regulatory subunit 4
+Macromolecule #2: Phosphatidylinositol 3-kinase catalytic subunit type 3
+Macromolecule #3: Beclin 1-associated autophagy-related key regulator
+Macromolecule #4: Beclin-1
+Macromolecule #5: Ras-related protein Rab-1A
+Macromolecule #6: GUANOSINE-5'-TRIPHOSPHATE
+Macromolecule #7: MAGNESIUM ION
+Macromolecule #8: MYRISTIC ACID
+Macromolecule #9: water
-Experimental details
-Structure determination
| Method | cryo EM |
|---|---|
Processing | single particle reconstruction |
| Aggregation state | particle |
-
Sample preparation
| Concentration | 0.2 mg/mL | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Buffer | pH: 7.4 Component:
| |||||||||||||||
| Grid | Model: Quantifoil Active R2/1 / Material: COPPER / Mesh: 300 / Support film - Material: CARBON / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 60 sec. / Details: 25 mA | |||||||||||||||
| Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV |
-
Electron microscopy
| Microscope | TFS KRIOS |
|---|---|
| Specialist optics | Energy filter - Slit width: 20 eV |
| Image recording | Film or detector model: GATAN K3 (6k x 4k) / Number real images: 19300 / 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 / Cs: 2.7 mm / Nominal defocus max: 2.0 µm / Nominal defocus min: 0.8 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 |
+
Image processing
-Atomic model buiding 1
| Initial model | Chain - Source name: AlphaFold / Chain - Initial model type: in silico model |
|---|---|
| Software | Name: ISOLDE (ver. 1.7) |
| Refinement | Space: REAL / Protocol: FLEXIBLE FIT |
| Output model | ![]() PDB-9mhf: |
Movie
Controller
About Yorodumi



Keywords
Homo sapiens (human)
Authors
United States, 1 items
Citation






























Z (Sec.)
Y (Row.)
X (Col.)























FIELD EMISSION GUN
