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Yorodumi- EMDB-24094: Continuous movement of the pre-catalytic spliceosome, mode 1-2. -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-24094 | |||||||||
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Title | Continuous movement of the pre-catalytic spliceosome, mode 1-2. | |||||||||
Map data | Continuous movement of the pre-catalytic spliceosome, mode 1-2. | |||||||||
Sample |
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Function / homology | Function and homology information Sm-like protein family complex / spliceosomal conformational changes to generate catalytic conformation / mRNA decay by 5' to 3' exoribonuclease / snoRNA splicing / maturation of 5S rRNA / snoRNA guided rRNA 2'-O-methylation / Lsm1-7-Pat1 complex / U6 snRNP / box C/D sno(s)RNA 3'-end processing / deadenylation-dependent decapping of nuclear-transcribed mRNA ...Sm-like protein family complex / spliceosomal conformational changes to generate catalytic conformation / mRNA decay by 5' to 3' exoribonuclease / snoRNA splicing / maturation of 5S rRNA / snoRNA guided rRNA 2'-O-methylation / Lsm1-7-Pat1 complex / U6 snRNP / box C/D sno(s)RNA 3'-end processing / deadenylation-dependent decapping of nuclear-transcribed mRNA / generation of catalytic spliceosome for first transesterification step / box C/D methylation guide snoRNP complex / splicing factor binding / U4/U6 snRNP / spliceosome conformational change to release U4 (or U4atac) and U1 (or U11) / 7-methylguanosine cap hypermethylation / pICln-Sm protein complex / P-body assembly / sno(s)RNA-containing ribonucleoprotein complex / snRNP binding / small nuclear ribonucleoprotein complex / U4 snRNA binding / SMN-Sm protein complex / spliceosomal tri-snRNP complex / U2-type spliceosomal complex / mRNA cis splicing, via spliceosome / poly(U) RNA binding / commitment complex / U2-type prespliceosome assembly / U2-type catalytic step 2 spliceosome / U4 snRNP / U2 snRNP / U3 snoRNA binding / U1 snRNP / U2-type prespliceosome / tRNA processing / precatalytic spliceosome / Major pathway of rRNA processing in the nucleolus and cytosol / generation of catalytic spliceosome for second transesterification step / spliceosomal complex assembly / mRNA 5'-splice site recognition / nuclear-transcribed mRNA catabolic process / mRNA 3'-splice site recognition / spliceosomal tri-snRNP complex assembly / U5 snRNA binding / U5 snRNP / U2 snRNA binding / U6 snRNA binding / spliceosomal snRNP assembly / cellular response to glucose starvation / pre-mRNA intronic binding / U1 snRNA binding / U4/U6 x U5 tri-snRNP complex / catalytic step 2 spliceosome / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of SSU-rRNA / small-subunit processome / spliceosomal complex / P-body / mRNA splicing, via spliceosome / rRNA processing / metallopeptidase activity / nucleic acid binding / RNA helicase activity / RNA helicase / response to xenobiotic stimulus / GTPase activity / mRNA binding / nucleolus / GTP binding / ATP hydrolysis activity / mitochondrion / RNA binding / zinc ion binding / nucleoplasm / ATP binding / identical protein binding / nucleus / metal ion binding / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | Saccharomyces cerevisiae (brewer's yeast) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 20.0 Å | |||||||||
Authors | Chen M / Ludtke SJ | |||||||||
Funding support | United States, 1 items
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Citation | Journal: Nat Methods / Year: 2021 Title: Deep learning-based mixed-dimensional Gaussian mixture model for characterizing variability in cryo-EM. Authors: Muyuan Chen / Steven J Ludtke / Abstract: Structural flexibility and/or dynamic interactions with other molecules is a critical aspect of protein function. Cryogenic electron microscopy (cryo-EM) provides direct visualization of individual ...Structural flexibility and/or dynamic interactions with other molecules is a critical aspect of protein function. Cryogenic electron microscopy (cryo-EM) provides direct visualization of individual macromolecules sampling different conformational and compositional states. While numerous methods are available for computational classification of discrete states, characterization of continuous conformational changes or large numbers of discrete state without human supervision remains challenging. Here we present e2gmm, a machine learning algorithm to determine a conformational landscape for proteins or complexes using a three-dimensional Gaussian mixture model mapped onto two-dimensional particle images in known orientations. Using a deep neural network architecture, e2gmm can automatically resolve the structural heterogeneity within the protein complex and map particles onto a small latent space describing conformational and compositional changes. This system presents a more intuitive and flexible representation than other manifold methods currently in use. We demonstrate this method on both simulated data and three biological systems to explore compositional and conformational changes at a range of scales. The software is distributed as part of EMAN2. | |||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_24094.map.gz | 7.3 MB | EMDB map data format | |
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Header (meta data) | emd-24094-v30.xml emd-24094.xml | 19.1 KB 19.1 KB | Display Display | EMDB header |
Images | emd_24094.png | 127.9 KB | ||
Others | emd_24094_additional_1.map.gz emd_24094_additional_2.map.gz emd_24094_additional_3.map.gz emd_24094_additional_4.map.gz emd_24094_additional_5.map.gz | 7.5 MB 7.3 MB 7.3 MB 7.4 MB 7.3 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-24094 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-24094 | HTTPS FTP |
-Validation report
Summary document | emd_24094_validation.pdf.gz | 328.5 KB | Display | EMDB validaton report |
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Full document | emd_24094_full_validation.pdf.gz | 328.1 KB | Display | |
Data in XML | emd_24094_validation.xml.gz | 5.7 KB | Display | |
Data in CIF | emd_24094_validation.cif.gz | 6.4 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-24094 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-24094 | HTTPS FTP |
-Related structure data
Related structure data | C: citing same article (ref.) |
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Similar structure data |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_24094.map.gz / Format: CCP4 / Size: 8 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Continuous movement of the pre-catalytic spliceosome, mode 1-2. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 4.2475 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Additional map: Continuous movement of the pre-catalytic spliceosome, mode 1-2,...
File | emd_24094_additional_1.map | ||||||||||||
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Annotation | Continuous movement of the pre-catalytic spliceosome, mode 1-2, frame 3. | ||||||||||||
Projections & Slices |
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Density Histograms |
-Additional map: Continuous movement of the pre-catalytic spliceosome, mode 1-2,...
File | emd_24094_additional_2.map | ||||||||||||
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Annotation | Continuous movement of the pre-catalytic spliceosome, mode 1-2, frame 2. | ||||||||||||
Projections & Slices |
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Density Histograms |
-Additional map: Continuous movement of the pre-catalytic spliceosome, mode 1-2,...
File | emd_24094_additional_3.map | ||||||||||||
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Annotation | Continuous movement of the pre-catalytic spliceosome, mode 1-2, frame 5. | ||||||||||||
Projections & Slices |
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Density Histograms |
-Additional map: Continuous movement of the pre-catalytic spliceosome, mode 1-2,...
File | emd_24094_additional_4.map | ||||||||||||
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Annotation | Continuous movement of the pre-catalytic spliceosome, mode 1-2, frame 4. | ||||||||||||
Projections & Slices |
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Density Histograms |
-Additional map: Continuous movement of the pre-catalytic spliceosome, mode 1-2,...
File | emd_24094_additional_5.map | ||||||||||||
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Annotation | Continuous movement of the pre-catalytic spliceosome, mode 1-2, frame 1. | ||||||||||||
Projections & Slices |
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Density Histograms |
-Sample components
-Entire : Pre-catalytic spliceosome
Entire | Name: Pre-catalytic spliceosome |
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Components |
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-Supramolecule #1: Pre-catalytic spliceosome
Supramolecule | Name: Pre-catalytic spliceosome / type: complex / ID: 1 / Parent: 0 Details: Re-processing of the dataset EMPIAR-10180 to resolve the continuous movement of the system. Five frames of the first motion mode are attached as additional map files. |
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Source (natural) | Organism: Saccharomyces cerevisiae (brewer's yeast) |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 8 |
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Vitrification | Cryogen name: ETHANE |
Details | Re-processing of EMPIAR-10180. |
-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: 56.0 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 |