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- EMDB-40939: E. coli 70S initiation complex (bL33 absent) -

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Basic information

Entry
Database: EMDB / ID: EMD-40939
TitleE. coli 70S initiation complex (bL33 absent)
Map dataE. coli 70S initiation complex (bL33 absent)
Sample
  • Complex: Ternary complex of E.coli ribosome with t-RNA
KeywordsABCF / Initiation-complex / ATPase / RIBOSOME
Function / homology
Function and homology information


negative regulation of cytoplasmic translational initiation / transcriptional attenuation / positive regulation of ribosome biogenesis / endoribonuclease inhibitor activity / RNA-binding transcription regulator activity / negative regulation of cytoplasmic translation / DnaA-L2 complex / translation repressor activity / negative regulation of DNA-templated DNA replication initiation / assembly of large subunit precursor of preribosome ...negative regulation of cytoplasmic translational initiation / transcriptional attenuation / positive regulation of ribosome biogenesis / endoribonuclease inhibitor activity / RNA-binding transcription regulator activity / negative regulation of cytoplasmic translation / DnaA-L2 complex / translation repressor activity / negative regulation of DNA-templated DNA replication initiation / assembly of large subunit precursor of preribosome / ribosome assembly / cytosolic ribosome assembly / translational initiation / regulation of cell growth / DNA-templated transcription termination / response to radiation / maintenance of translational fidelity / mRNA 5'-UTR binding / regulation of translation / large ribosomal subunit / ribosome binding / transferase activity / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / small ribosomal subunit rRNA binding / 5S rRNA binding / ribosomal large subunit assembly / cytosolic small ribosomal subunit / large ribosomal subunit rRNA binding / cytosolic large ribosomal subunit / cytoplasmic translation / tRNA binding / negative regulation of translation / rRNA binding / ribosome / structural constituent of ribosome / translation / ribonucleoprotein complex / response to antibiotic / negative regulation of DNA-templated transcription / mRNA binding / DNA binding / RNA binding / zinc ion binding / membrane / cytosol / cytoplasm
Similarity search - Function
Ribosomal protein S21, conserved site / Ribosomal protein S21 signature. / Ribosomal protein L25, short-form / Ribosomal protein S14, bacterial/plastid / Ribosomal protein L31 type A / Ribosomal protein S21 superfamily / Ribosomal protein S21 / Ribosomal protein S16, conserved site / Ribosomal protein S16 signature. / Ribosomal protein L31 signature. ...Ribosomal protein S21, conserved site / Ribosomal protein S21 signature. / Ribosomal protein L25, short-form / Ribosomal protein S14, bacterial/plastid / Ribosomal protein L31 type A / Ribosomal protein S21 superfamily / Ribosomal protein S21 / Ribosomal protein S16, conserved site / Ribosomal protein S16 signature. / Ribosomal protein L31 signature. / Ribosomal protein S21 / Ribosomal protein L31 / Ribosomal protein L31 superfamily / Ribosomal protein L31 / : / Ribosomal protein L16 signature 1. / Ribosomal protein L21, conserved site / Ribosomal protein L21 signature. / Ribosomal protein L16, conserved site / Ribosomal protein L16 signature 2. / Ribosomal protein L6, conserved site / Ribosomal protein L6 signature 1. / : / Ribosomal protein L9 signature. / Ribosomal protein L9, bacteria/chloroplast / Ribosomal protein L9, C-terminal / Ribosomal protein L9, C-terminal domain / Ribosomal protein L9, C-terminal domain superfamily / Ribosomal protein L17 signature. / Ribosomal L25p family / Ribosomal protein L25 / Ribosomal protein L36 signature. / Ribosomal protein L28/L24 superfamily / Ribosomal protein L32p, bacterial type / Ribosomal protein L25/Gln-tRNA synthetase, N-terminal / Ribosomal protein L25/Gln-tRNA synthetase, anti-codon-binding domain superfamily / Ribosomal protein L9, N-terminal domain superfamily / Ribosomal protein L9 / Ribosomal protein L9, N-terminal / Ribosomal protein L9, N-terminal domain / Ribosomal protein L35, conserved site / Ribosomal protein L35 signature. / : / Ribosomal protein L28 / Ribosomal protein L35, non-mitochondrial / Ribosomal protein L5, bacterial-type / Ribosomal protein L18, bacterial-type / : / Ribosomal protein L6, bacterial-type / Ribosomal protein S3, bacterial-type / Ribosomal protein S19, bacterial-type / Ribosomal protein L9/RNase H1, N-terminal / Ribosomal protein S13, bacterial-type / Ribosomal protein S6, conserved site / Ribosomal protein S6 signature. / Ribosomal protein S7, bacterial/organellar-type / Ribosomal protein S9, bacterial/plastid / Ribosomal protein S11, bacterial-type / Ribosomal protein L36 / Ribosomal protein L36 superfamily / Ribosomal protein L36 / Ribosomal protein S20 / Ribosomal protein S20 superfamily / Ribosomal protein S20 / Ribosomal protein S4, bacterial-type / Ribosomal protein L19, conserved site / Ribosomal protein L19 signature. / 30S ribosomal protein S17 / Ribosomal protein S5, bacterial-type / Ribosomal protein L27, conserved site / Ribosomal protein L27 signature. / Ribosomal protein S6, plastid/chloroplast / Ribosomal protein L20 signature. / Ribosomal protein L22, bacterial/chloroplast-type / Ribosomal protein L14P, bacterial-type / Ribosomal protein L34, conserved site / Ribosomal protein L34 signature. / Ribosomal protein L2, bacterial/organellar-type / Ribosomal protein S2, bacteria/mitochondria/plastid / Ribosomal protein L35 / Ribosomal protein L35 superfamily / Ribosomal protein L35 / Ribosomal L28 family / Ribosomal protein L16 / Ribosomal protein L28/L24 / Ribosomal protein L18 / Ribosomal L18 of archaea, bacteria, mitoch. and chloroplast / Ribosomal protein S18, conserved site / Ribosomal protein S18 signature. / Ribosomal protein L30, bacterial-type / Ribosomal protein S16 / Ribosomal protein S16 domain superfamily / Ribosomal protein S16 / : / L28p-like / Ribosomal protein S15, bacterial-type / Ribosomal protein L27 / Ribosomal L27 protein / Ribosomal protein S6 / Ribosomal protein S6
Similarity search - Domain/homology
Large ribosomal subunit protein bL28 / Large ribosomal subunit protein bL36 / Small ribosomal subunit protein uS10 / Large ribosomal subunit protein uL5 / Small ribosomal subunit protein uS19 / Large ribosomal subunit protein uL24 / Small ribosomal subunit protein uS8 / Large ribosomal subunit protein bL32 / Small ribosomal subunit protein uS14 / Large ribosomal subunit protein bL34 ...Large ribosomal subunit protein bL28 / Large ribosomal subunit protein bL36 / Small ribosomal subunit protein uS10 / Large ribosomal subunit protein uL5 / Small ribosomal subunit protein uS19 / Large ribosomal subunit protein uL24 / Small ribosomal subunit protein uS8 / Large ribosomal subunit protein bL32 / Small ribosomal subunit protein uS14 / Large ribosomal subunit protein bL34 / Small ribosomal subunit protein uS12 / Large ribosomal subunit protein uL23 / Large ribosomal subunit protein uL29 / Large ribosomal subunit protein uL6 / Small ribosomal subunit protein uS11 / Small ribosomal subunit protein uS4 / Small ribosomal subunit protein uS9 / Small ribosomal subunit protein bS16 / Large ribosomal subunit protein bL20 / Small ribosomal subunit protein bS20 / Small ribosomal subunit protein bS18 / Small ribosomal subunit protein bS6 / Small ribosomal subunit protein uS7 / Large ribosomal subunit protein uL15 / Large ribosomal subunit protein bL27 / Large ribosomal subunit protein bL31 / Large ribosomal subunit protein bL35 / Large ribosomal subunit protein bL9 / Small ribosomal subunit protein uS2 / Small ribosomal subunit protein uS3 / Small ribosomal subunit protein uS5 / Large ribosomal subunit protein uL13 / Large ribosomal subunit protein uL16 / Small ribosomal subunit protein uS15 / Large ribosomal subunit protein bL17 / Large ribosomal subunit protein uL30 / Small ribosomal subunit protein uS17 / Large ribosomal subunit protein uL18 / Large ribosomal subunit protein uL2 / Large ribosomal subunit protein uL3 / Large ribosomal subunit protein uL4 / Small ribosomal subunit protein bS21 / Large ribosomal subunit protein bL25 / Large ribosomal subunit protein uL22 / Large ribosomal subunit protein bL21 / Large ribosomal subunit protein uL14 / Small ribosomal subunit protein uS13 / Large ribosomal subunit protein bL19
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.3 Å
AuthorsHunt JF / Singh S
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Cancer Institute (NIH/NCI) United States
CitationJournal: To Be Published
Title: E. coli 70S initiation complex (bL33 absent)
Authors: Hunt JF / Singh S
History
DepositionMay 31, 2023-
Header (metadata) releaseJun 12, 2024-
Map releaseJun 12, 2024-
UpdateApr 2, 2025-
Current statusApr 2, 2025Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_40939.png

Downloads & links

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Map

FileDownload / File: emd_40939.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationE. coli 70S initiation complex (bL33 absent)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.95 Å/pix.
x 400 pix.
= 380. Å		0.95 Å/pix.
x 400 pix.
= 380. Å		0.95 Å/pix.
x 400 pix.
= 380. Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.95 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.55
Minimum - Maximum-1.6575913 - 2.6511548
Average (Standard dev.)0.006867308 (±0.13761954)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions400400400
Spacing400400400
CellA=B=C: 380.0 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: Half Map 1

Fileemd_40939_half_map_1.map
AnnotationHalf Map 1
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Half Map 2

Fileemd_40939_half_map_2.map
AnnotationHalf Map 2
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : Ternary complex of E.coli ribosome with t-RNA

EntireName: Ternary complex of E.coli ribosome with t-RNA
Components
  • Complex: Ternary complex of E.coli ribosome with t-RNA

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Supramolecule #1: Ternary complex of E.coli ribosome with t-RNA

SupramoleculeName: Ternary complex of E.coli ribosome with t-RNA / type: complex / ID: 1 / Parent: 0
Source (natural)Organism: Escherichia coli (E. coli)

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 7.5
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI POLARA 300
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 64.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: OTHER / Imaging mode: BRIGHT FIELD / Nominal defocus max: 1.5 µm / Nominal defocus min: 0.5 µm
Experimental equipment
Model: Tecnai Polara / Image courtesy: FEI Company

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Image processing

Startup modelType of model: EMDB MAP
EMDB ID:

29399

Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.3 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 148603
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD

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