+
Open data
-
Basic information
| Entry | Database: PDB / ID: 7msm | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Title | Mtb 70SIC in complex with MtbEttA at Trans_R0 state | |||||||||
Components |
| |||||||||
Keywords | RIBOSOME / mycobacterium tuberculosis / ABCF ribosome complex / antibiotic | |||||||||
| Function / homology | Function and homology informationnegative regulation of translational elongation / Hydrolases; Acting on acid anhydrides; In phosphorus-containing anhydrides / peptidoglycan-based cell wall / large ribosomal subunit / regulation of translation / ribosome binding / transferase activity / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit ...negative regulation of translational elongation / Hydrolases; Acting on acid anhydrides; In phosphorus-containing anhydrides / peptidoglycan-based cell wall / large ribosomal subunit / regulation of translation / ribosome binding / transferase activity / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / 5S rRNA binding / ribosomal large subunit assembly / small ribosomal subunit rRNA binding / large ribosomal subunit rRNA binding / cytosolic small ribosomal subunit / cytosolic large ribosomal subunit / cytoplasmic translation / tRNA binding / negative regulation of translation / rRNA binding / structural constituent of ribosome / ribosome / translation / ribonucleoprotein complex / response to antibiotic / mRNA binding / ATP hydrolysis activity / RNA binding / zinc ion binding / ATP binding / metal ion binding / plasma membrane / cytoplasm / cytosol Similarity search - Function | |||||||||
| Biological species | ![]() Mycobacterium tuberculosis H37Rv (bacteria) | |||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.79 Å | |||||||||
Authors | Cui, Z. / Zhang, J. | |||||||||
| Funding support | United States, 2items
| |||||||||
Citation | Journal: Nat Commun / Year: 2022Title: Interplay between an ATP-binding cassette F protein and the ribosome from Mycobacterium tuberculosis. Authors: Zhicheng Cui / Xiaojun Li / Joonyoung Shin / Howard Gamper / Ya-Ming Hou / James C Sacchettini / Junjie Zhang / ![]() Abstract: EttA, energy-dependent translational throttle A, is a ribosomal factor that gates ribosome entry into the translation elongation cycle. A detailed understanding of its mechanism of action is limited ...EttA, energy-dependent translational throttle A, is a ribosomal factor that gates ribosome entry into the translation elongation cycle. A detailed understanding of its mechanism of action is limited due to the lack of high-resolution structures along its ATPase cycle. Here we present the cryo-electron microscopy (cryo-EM) structures of EttA from Mycobacterium tuberculosis (Mtb), referred to as MtbEttA, in complex with the Mtb 70S ribosome initiation complex (70SIC) at the pre-hydrolysis (ADPNP) and transition (ADP-VO) states, and the crystal structure of MtbEttA alone in the post-hydrolysis (ADP) state. We observe that MtbEttA binds the E-site of the Mtb 70SIC, remodeling the P-site tRNA and the ribosomal intersubunit bridge B7a during the ribosomal ratcheting. In return, the rotation of the 30S causes conformational changes in MtbEttA, forcing the two nucleotide-binding sites (NBSs) to alternate to engage each ADPNP in the pre-hydrolysis states, followed by complete engagements of both ADP-VO molecules in the ATP-hydrolysis transition states. In the post-hydrolysis state, the conserved ATP-hydrolysis motifs of MtbEttA dissociate from both ADP molecules, leaving two nucleotide-binding domains (NBDs) in an open conformation. These structures reveal a dynamic interplay between MtbEttA and the Mtb ribosome, providing insights into the mechanism of translational regulation by EttA-like proteins. | |||||||||
| History |
|
-
Structure visualization
| Movie |
Movie viewer |
|---|---|
| Structure viewer | Molecule: Molmil Jmol/JSmol |
-
Downloads & links
-
Download
| PDBx/mmCIF format | 7msm.cif.gz | 3.3 MB | Display | PDBx/mmCIF format |
|---|---|---|---|---|
| PDB format | pdb7msm.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 7msm.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 7msm_validation.pdf.gz | 1.5 MB | Display | wwPDB validaton report |
|---|---|---|---|---|
| Full document | 7msm_full_validation.pdf.gz | 1.6 MB | Display | |
| Data in XML | 7msm_validation.xml.gz | 221.2 KB | Display | |
| Data in CIF | 7msm_validation.cif.gz | 393.7 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ms/7msm ftp://data.pdbj.org/pub/pdb/validation_reports/ms/7msm | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 23969MC ![]() 7mscC ![]() 7mshC ![]() 7mszC ![]() 7mt2C ![]() 7mt3C ![]() 7mt7C ![]() 7mu0C C: citing same article ( M: map data used to model this data |
|---|---|
| Similar structure data |
-
Links
-
Assembly
| Deposited unit | ![]()
|
|---|---|
| 1 |
|
-
Components
+50S ribosomal protein ... , 31 types, 31 molecules 01234678CDEFGHJKLMNOPQRSTUVWXYZ
-RNA chain , 5 types, 5 molecules ABayz
| #9: RNA chain | Mass: 1017820.562 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) (bacteria)Strain: ATCC 25618 / H37Rv / References: GenBank: 1251771536 |
|---|---|
| #10: RNA chain | Mass: 37097.238 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) (bacteria)Strain: ATCC 25618 / H37Rv / References: GenBank: 1251771551 |
| #34: RNA chain | Mass: 498401.750 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) Mycobacterium tuberculosis H37Rv (bacteria)Strain: ATCC 25618 / H37Rv / References: GenBank: 1464449751 |
| #54: RNA chain | Mass: 24802.785 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) (bacteria)Strain: ATCC 25618 / H37Rv |
| #55: RNA chain | Mass: 8470.186 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) (bacteria)Strain: ATCC 25618 / H37Rv |
-30S ribosomal protein ... , 18 types, 18 molecules cdefghijklmnopqrst
| #35: Protein | Mass: 30071.018 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) (bacteria)Strain: ATCC 25618 / H37Rv / References: UniProt: P9WH37 |
|---|---|
| #36: Protein | Mass: 23515.898 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) (bacteria)Strain: ATCC 25618 / H37Rv / References: UniProt: P9WH35 |
| #37: Protein | Mass: 22925.242 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) (bacteria)Strain: ATCC 25618 / H37Rv / References: UniProt: P9WH33 |
| #38: Protein | Mass: 10952.728 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) (bacteria)Strain: ATCC 25618 / H37Rv / References: UniProt: P9WH31 |
| #39: Protein | Mass: 17633.418 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) (bacteria)Strain: ATCC 25618 / H37Rv / References: UniProt: P9WH29 |
| #40: Protein | Mass: 14432.563 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) (bacteria)Strain: ATCC 25618 / H37Rv / References: UniProt: P9WH27 |
| #41: Protein | Mass: 16465.061 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) (bacteria)Strain: ATCC 25618 / H37Rv / References: UniProt: P9WH25 |
| #42: Protein | Mass: 11452.340 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) (bacteria)Strain: ATCC 25618 / H37Rv / References: UniProt: P9WH67 |
| #43: Protein | Mass: 14815.918 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) (bacteria)Strain: ATCC 25618 / H37Rv / References: UniProt: P9WH65 |
| #44: Protein | Mass: 13882.341 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) (bacteria)Strain: ATCC 25618 / H37Rv / References: UniProt: P9WH63 |
| #45: Protein | Mass: 14383.779 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) (bacteria)Strain: ATCC 25618 / H37Rv / References: UniProt: P9WH61 |
| #46: Protein | Mass: 6841.249 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) (bacteria)Strain: ATCC 25618 / H37Rv / References: UniProt: P9WH57 |
| #47: Protein | Mass: 10500.277 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) (bacteria)Strain: ATCC 25618 / H37Rv / References: UniProt: P9WH55 |
| #48: Protein | Mass: 17466.100 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) (bacteria)Strain: ATCC 25618 / H37Rv / References: UniProt: P9WH53 |
| #49: Protein | Mass: 14776.373 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) (bacteria)Strain: ATCC 25618 / H37Rv / References: UniProt: P9WH51 |
| #50: Protein | Mass: 9565.279 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) (bacteria)Strain: ATCC 25618 / H37Rv / References: UniProt: P9WH49 |
| #51: Protein | Mass: 10830.629 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) (bacteria)Strain: ATCC 25618 / H37Rv / References: UniProt: P9WH45 |
| #52: Protein | Mass: 9428.941 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) (bacteria)Strain: ATCC 25618 / H37Rv / References: UniProt: P9WH41 |
-Protein , 1 types, 1 molecules x
| #53: Protein | Mass: 61972.957 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) (bacteria)Strain: ATCC 25618 / H37Rv References: UniProt: P9WQK3, Hydrolases; Acting on acid anhydrides; In phosphorus-containing anhydrides |
|---|
-Non-polymers , 5 types, 456 molecules 








| #56: Chemical | ChemComp-ZN / #57: Chemical | ChemComp-MG / #58: Chemical | #59: Chemical | #60: Chemical | ChemComp-FME / | |
|---|
-Details
| Has ligand of interest | N |
|---|
-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
|---|---|
| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-
Sample preparation
| Component | Name: The complex of Mtb 70SIC with MtbEttA at ATP-hydrolysis transition state (Trans_R0) Type: RIBOSOME / Entity ID: #1-#55 / Source: NATURAL |
|---|---|
| Molecular weight | Experimental value: NO |
| Source (natural) | Organism: Mycobacterium tuberculosis H37Rv (bacteria) |
| Buffer solution | pH: 7.5 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Specimen support | Grid type: Quantifoil R2/1 |
| Vitrification | Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 295 K |
-
Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
|---|---|
| Microscopy | Model: FEI TITAN KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Cs: 2.7 mm |
| Image recording | Electron dose: 48 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
-
Processing
| EM software |
| ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CTF correction | Type: NONE | ||||||||||||
| Particle selection | Num. of particles selected: 8666 | ||||||||||||
| 3D reconstruction | Resolution: 2.79 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 86692 / Symmetry type: POINT |
Movie
Controller
About Yorodumi






United States, 2items
Citation
UCSF Chimera
























PDBj

































