+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-5116 | |||||||||
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Title | 30S subunit of ribosomal protein S1 | |||||||||
Map data | surface view of S1 protein | |||||||||
Sample |
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Keywords | protein S1 / EM density / spider / ribosome / single particle reconstruction | |||||||||
Biological species | unidentified (others) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 11.5 Å | |||||||||
Authors | Sengupta J / Agrawal RK / Frank J | |||||||||
Citation | Journal: Proc Natl Acad Sci U S A / Year: 2001 Title: Visualization of protein S1 within the 30S ribosomal subunit and its interaction with messenger RNA. Authors: J Sengupta / R K Agrawal / J Frank / Abstract: S1 is the largest ribosomal protein, present in the small subunit of the bacterial ribosome. It has a pivotal role in stabilizing the mRNA on the ribosome. Thus far, S1 has eluded structural ...S1 is the largest ribosomal protein, present in the small subunit of the bacterial ribosome. It has a pivotal role in stabilizing the mRNA on the ribosome. Thus far, S1 has eluded structural determination. We have identified the S1 protein mass in the cryo-electron microscopic map of the Escherichia coli ribosome by comparing the map with a recent x-ray crystallographic structure of the 30S subunit, which lacks S1. According to our finding, S1 is located at the junction of head, platform, and main body of the 30S subunit, thus explaining all existing biochemical and crosslinking data. Protein S1 as identified in our map has a complex, elongated shape with two holes in its central portion. The N-terminal domain, forming one of the extensions, penetrates into the head of the 30S subunit. Evidence for direct interaction of S1 with 11 nucleotides of the mRNA, immediately upstream of the Shine-Dalgarno sequence, explains the protein's role in the recognition of the 5' region of mRNA. #1: Journal: CELL (CAMBRIDGE,MASS.) / Year: 2000 Title: Solution structure of the E. coli 70S ribosome at 11.5 angstrom resolution Authors: Gabashvili IS / Agrawal RK / Spahn CMT / Grassucci RA / Svergun DI / Frank J / Penczek P | |||||||||
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_5116.map.gz | 7 MB | EMDB map data format | |
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Header (meta data) | emd-5116-v30.xml emd-5116.xml | 7.7 KB 7.7 KB | Display Display | EMDB header |
Images | emd_5116_1.png | 101.4 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-5116 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-5116 | HTTPS FTP |
-Validation report
Summary document | emd_5116_validation.pdf.gz | 77.4 KB | Display | EMDB validaton report |
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Full document | emd_5116_full_validation.pdf.gz | 76.5 KB | Display | |
Data in XML | emd_5116_validation.xml.gz | 493 B | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-5116 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-5116 | HTTPS FTP |
-Related structure data
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 |
-Map
File | Download / File: emd_5116.map.gz / Format: CCP4 / Size: 7.3 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | surface view of S1 protein | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 2.93 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Sample components
-Entire : Protein S1
Entire | Name: Protein S1 |
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Components |
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-Supramolecule #1000: Protein S1
Supramolecule | Name: Protein S1 / type: sample / ID: 1000 Details: see additional reference by Gabashvili I S, Agrawal R K, Spahn C M T, Grassucci R,Svergun D I,and Frank J, 7. Penczek P (2000) Cell 100,537-549 Number unique components: 1 |
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-Macromolecule #1: Protein S1
Macromolecule | Name: Protein S1 / type: protein_or_peptide / ID: 1 / Name.synonym: Protein S1 / Number of copies: 1 / Recombinant expression: No / Database: NCBI |
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Source (natural) | Organism: unidentified (others) |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Vitrification | Cryogen name: ETHANE / Instrument: OTHER |
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-Electron microscopy
Microscope | FEI TECNAI 20 |
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Date | Jul 1, 1999 |
Electron beam | Acceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: OTHER / Imaging mode: BRIGHT FIELD |
Sample stage | Specimen holder: Side entry liquid nitrogen-cooled cryo specimen holder. Specimen holder model: GATAN LIQUID NITROGEN |
-Image processing
CTF correction | Details: see the additional reference |
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Final reconstruction | Algorithm: OTHER / Resolution.type: BY AUTHOR / Resolution: 11.5 Å / Resolution method: OTHER / Software - Name: spider / Details: see the additional reference |