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- PDB-6dzk: Cryo-EM Structure of Mycobacterium smegmatis C(minus) 30S ribosom... -

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Entry
Database: PDB / ID: 6dzk
TitleCryo-EM Structure of Mycobacterium smegmatis C(minus) 30S ribosomal subunit with MPY
Components
  • (30S ribosomal protein ...) x 19
  • 16S rRNA
  • 50S ribosomal protein L31
  • Conserved domain proteinProtein domain
  • Ribosome hibernation promoting factor
KeywordsRIBOSOME / Hibernation factor complex
Function / homology
Function and homology information


primary metabolic process / small ribosomal subunit / regulation of translation / tRNA binding / rRNA binding / ribosome / structural constituent of ribosome / translation / mRNA binding / cytoplasm
Ribosomal protein S11 superfamily / Ribosomal protein S2, flavodoxin-like domain superfamily / Ribosomal protein S20 superfamily / Ribosomal protein S3, C-terminal domain superfamily / Ribosomal protein S8 superfamily / Ribosomal protein S6 superfamily / L28p-like / Ribosome hibernation promoting factor, long/plastid / Sigma 54 modulation/S30EA ribosomal protein, C-terminal / Ribosomal protein S10 domain ...Ribosomal protein S11 superfamily / Ribosomal protein S2, flavodoxin-like domain superfamily / Ribosomal protein S20 superfamily / Ribosomal protein S3, C-terminal domain superfamily / Ribosomal protein S8 superfamily / Ribosomal protein S6 superfamily / L28p-like / Ribosome hibernation promoting factor, long/plastid / Sigma 54 modulation/S30EA ribosomal protein, C-terminal / Ribosomal protein S10 domain / 30s ribosomal protein S13, C-terminal / Ribosomal protein S16 domain superfamily / Ribosomal protein S7 domain / Ribosomal protein S19, superfamily / Ribosomal protein S7 domain superfamily / Ribosomal protein S14, bacterial/plastid / Ribosomal protein S9, bacterial/plastid / Ribosomal protein S4/S9 / Ribosomal protein S19 conserved site / Ribosomal protein S6, conserved site / Ribosomal protein S20 / Ribosomal protein S7, conserved site / Ribosomal protein S16, conserved site / Ribosomal protein S9, conserved site / Ribosomal protein S5 domain 2-type fold / 30S ribosomal protein S17 / Ribosomal protein S11, bacterial-type / Ribosome hibernation promotion factor-like / Ribosomal protein S10 domain superfamily / Ribosomal protein S17, conserved site / Ribosomal protein S5, C-terminal domain / Ribosomal protein S17 / Ribosomal protein S16 / Ribosomal protein S15 / Ribosomal protein S14p/S29e / Ribosomal protein S13/S18 / Ribosomal protein S12/S23 / Ribosomal protein S11 / Ribosomal protein S10p/S20e / Ribosomal protein S9/S16 / Ribosomal protein S8 / Ribosomal protein S7p/S5e / Ribosomal protein S6 / Ribosomal protein S5, N-terminal domain / Ribosomal protein S18 superfamily / S4 domain / Ribosomal protein S4/S9 N-terminal domain / KH domain / Ribosomal protein S3, C-terminal domain / Ribosomal protein S2 / Sigma 54 modulation protein / S30EA ribosomal protein / Sigma 54 modulation/S30EA ribosomal protein C terminus / Ribosomal protein L31 / Ribosomal protein S18 / Ribosomal protein L31 superfamily / Sigma 54 modulation/S30EA ribosomal protein, C-terminal domain superfamily / RNA-binding S4 domain superfamily / Ribosomal protein S13, bacterial-type / Ribosomal protein S6, plastid/chloroplast / Ribosomal protein S3, conserved site / Ribosomal protein S10 / Ribosome hibernation promoting factor/RaiA / RNA-binding S4 domain / Ribosomal protein S20 / Ribosomal protein S19/S15 / Ribosomal protein L31 / Ribosomal protein S11 / Ribosomal protein S18, conserved site / Ribosomal protein S4/S9, N-terminal / Ribosomal protein S13 / Ribosomal protein S2 / Ribosomal protein S18 / K Homology domain / Ribosomal protein S3, C-terminal / Ribosomal protein S14 / Ribosomal protein S5 / Ribosomal protein S9 / Ribosomal protein S8 / Ribosomal protein S15 / Ribosomal protein S6 / Ribosomal protein S16 / Ribosomal protein S17/S11 / Ribosomal protein S5/S7 / K Homology domain, type 2 / Ribosomal protein S19 / Ribosomal protein S15, bacterial-type / Domain of unknown function DUF1713 / Ribosomal protein S13-like, H2TH / S15/NS1, RNA-binding / K homology domain superfamily, prokaryotic type / Ribosomal protein S5, N-terminal / Ribosomal protein S5, C-terminal / Translation elongation factor EF1B/ribosomal protein S6 / Ribosomal protein S5 domain 2-type fold, subgroup / K homology domain-like, alpha/beta / Ribosomal protein S4, conserved site / Ribosomal S11, conserved site / Ribosomal protein S2, conserved site / Ribosomal protein S5, N-terminal, conserved site / Nucleic acid-binding, OB-fold
30S ribosomal protein S6 / gb:118168627: / Conserved domain protein / 30S ribosomal protein S4 / 30S ribosomal protein S14 / 30S ribosomal protein S18 1 / 30S ribosomal protein S20 / 30S ribosomal protein S15 / 30S ribosomal protein S2 / 30S ribosomal protein S16 ...30S ribosomal protein S6 / gb:118168627: / Conserved domain protein / 30S ribosomal protein S4 / 30S ribosomal protein S14 / 30S ribosomal protein S18 1 / 30S ribosomal protein S20 / 30S ribosomal protein S15 / 30S ribosomal protein S2 / 30S ribosomal protein S16 / Ribosome hibernation promoting factor / 30S ribosomal protein S9 / 30S ribosomal protein S11 / 50S ribosomal protein L31 / 30S ribosomal protein S13 / 30S ribosomal protein S5 / 30S ribosomal protein S8 / 30S ribosomal protein S17 / 30S ribosomal protein S3 / 30S ribosomal protein S19 / 30S ribosomal protein S10 / 30S ribosomal protein S7 / 30S ribosomal protein S12
Biological speciesMycobacterium smegmatis str. MC2 155 (bacteria)
Mycobacterium smegmatis (bacteria)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.6 Å
AuthorsSharma, M.R. / Li, Y. / Korripella, R. / Yang, Y. / Kaushal, P.S. / Lin, Q. / Wade, J.T. / Gray, A.G. / Derbyshire, K.M. / Agrawal, R.K. / Ojha, A.
Funding support United States, 3items
OrganizationGrant numberCountry
National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)GM061576 United States
National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)AI107595 United States
National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)AI097191 United States
CitationJournal: Proc. Natl. Acad. Sci. U.S.A. / Year: 2018
Title: Zinc depletion induces ribosome hibernation in mycobacteria.
Authors: Yunlong Li / Manjuli R Sharma / Ravi K Koripella / Yong Yang / Prem S Kaushal / Qishan Lin / Joseph T Wade / Todd A Gray / Keith M Derbyshire / Rajendra K Agrawal / Anil K Ojha /
Abstract: Bacteria respond to zinc starvation by replacing ribosomal proteins that have the zinc-binding CXXC motif (C+) with their zinc-free (C-) paralogues. Consequences of this process beyond zinc ...Bacteria respond to zinc starvation by replacing ribosomal proteins that have the zinc-binding CXXC motif (C+) with their zinc-free (C-) paralogues. Consequences of this process beyond zinc homeostasis are unknown. Here, we show that the C- ribosome in is the exclusive target of a bacterial protein Y homolog, referred to as mycobacterial-specific protein Y (MPY), which binds to the decoding region of the 30S subunit, thereby inactivating the ribosome. MPY binding is dependent on another mycobacterial protein, MPY recruitment factor (MRF), which is induced on zinc depletion, and interacts with C- ribosomes. MPY binding confers structural stability to C- ribosomes, promoting survival of growth-arrested cells under zinc-limiting conditions. Binding of MPY also has direct influence on the dynamics of aminoglycoside-binding pockets of the C- ribosome to inhibit binding of these antibiotics. Together, our data suggest that zinc limitation leads to ribosome hibernation and aminoglycoside resistance in mycobacteria. Furthermore, our observation of the expression of the proteins of C- ribosomes in in a mouse model of infection suggests that ribosome hibernation could be relevant in our understanding of persistence and drug tolerance of the pathogen encountered during chemotherapy of TB.
Validation Report
SummaryFull reportAbout validation report
History
DepositionJul 5, 2018Deposition site: RCSB / Processing site: RCSB
Revision 1.0Sep 19, 2018Provider: repository / Type: Initial release
Revision 1.1Oct 24, 2018Group: Data collection / Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year / _citation_author.identifier_ORCID / _citation_author.name
Revision 1.2Dec 18, 2019Group: Author supporting evidence / Category: pdbx_audit_support / Item: _pdbx_audit_support.funding_organization

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Structure visualization

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Assembly

Deposited unit
A: 16S rRNA
B: Conserved domain protein
C: 30S ribosomal protein S3
D: 30S ribosomal protein S4
E: 30S ribosomal protein S5
F: 30S ribosomal protein S6
G: 30S ribosomal protein S7
H: 30S ribosomal protein S8
I: 30S ribosomal protein S9
J: 30S ribosomal protein S10
K: 30S ribosomal protein S11
L: 30S ribosomal protein S12
M: 30S ribosomal protein S13
O: 30S ribosomal protein S15
P: 30S ribosomal protein S16
Q: 30S ribosomal protein S17
S: 30S ribosomal protein S19
T: 30S ribosomal protein S20
V: 30S ribosomal protein S2
r: 30S ribosomal protein S18 1
Y: Ribosome hibernation promoting factor
N: 30S ribosomal protein S14
g: 50S ribosomal protein L31


Theoretical massNumber of molelcules
Total (without water)829,16423
Polymers829,16423
Non-polymers00
Water0
1


TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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30S ribosomal protein ... , 19 types, 19 molecules CDEFGHIJKLMOPQSTVrN

#3: Protein 30S ribosomal protein S3 /


Mass: 30191.227 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Mycobacterium smegmatis (strain ATCC 700084 / mc(2)155) (bacteria)
Strain: ATCC 700084 / mc(2)155 / References: UniProt: A0QSD7
#4: Protein 30S ribosomal protein S4 /


Mass: 23415.787 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Mycobacterium smegmatis (strain ATCC 700084 / mc(2)155) (bacteria)
Strain: ATCC 700084 / mc(2)155 / References: UniProt: A0QSL7
#5: Protein 30S ribosomal protein S5 /


Mass: 21814.893 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Mycobacterium smegmatis (strain ATCC 700084 / mc(2)155) (bacteria)
Strain: ATCC 700084 / mc(2)155 / References: UniProt: A0QSG6
#6: Protein 30S ribosomal protein S6 /


Mass: 10991.637 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Mycobacterium smegmatis (bacteria) / Strain: ATCC 700084 / mc(2)155 / References: UniProt: A0A0D6J3X3
#7: Protein 30S ribosomal protein S7 /


Mass: 17660.375 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Mycobacterium smegmatis (strain ATCC 700084 / mc(2)155) (bacteria)
Strain: ATCC 700084 / mc(2)155 / References: UniProt: A0QS97
#8: Protein 30S ribosomal protein S8 /


Mass: 14361.442 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Mycobacterium smegmatis (strain ATCC 700084 / mc(2)155) (bacteria)
Strain: ATCC 700084 / mc(2)155 / References: UniProt: A0QSG3
#9: Protein 30S ribosomal protein S9 /


Mass: 16794.365 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Mycobacterium smegmatis (strain ATCC 700084 / mc(2)155) (bacteria)
Strain: ATCC 700084 / mc(2)155 / References: UniProt: A0QSP9
#10: Protein 30S ribosomal protein S10 /


Mass: 11454.313 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Mycobacterium smegmatis (strain ATCC 700084 / mc(2)155) (bacteria)
Strain: ATCC 700084 / mc(2)155 / References: UniProt: A0QSD0
#11: Protein 30S ribosomal protein S11 /


Mass: 14671.762 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Mycobacterium smegmatis (strain ATCC 700084 / mc(2)155) (bacteria)
Strain: ATCC 700084 / mc(2)155 / References: UniProt: A0QSL6
#12: Protein 30S ribosomal protein S12 /


Mass: 13896.366 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Mycobacterium smegmatis (strain ATCC 700084 / mc(2)155) (bacteria)
Strain: ATCC 700084 / mc(2)155 / References: UniProt: A0QS96
#13: Protein 30S ribosomal protein S13 /


Mass: 14249.619 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Mycobacterium smegmatis (strain ATCC 700084 / mc(2)155) (bacteria)
Strain: ATCC 700084 / mc(2)155 / References: UniProt: A0QSL5
#14: Protein 30S ribosomal protein S15 /


Mass: 10236.900 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Mycobacterium smegmatis (strain ATCC 700084 / mc(2)155) (bacteria)
Strain: ATCC 700084 / mc(2)155 / References: UniProt: A0QVQ3
#15: Protein 30S ribosomal protein S16 /


Mass: 16795.207 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Mycobacterium smegmatis (strain ATCC 700084 / mc(2)155) (bacteria)
Strain: ATCC 700084 / mc(2)155 / References: UniProt: A0QV37
#16: Protein 30S ribosomal protein S17 /


Mass: 11127.002 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Mycobacterium smegmatis (strain ATCC 700084 / mc(2)155) (bacteria)
Strain: ATCC 700084 / mc(2)155 / References: UniProt: A0QSE0
#17: Protein 30S ribosomal protein S19 /


Mass: 10800.602 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Mycobacterium smegmatis (strain ATCC 700084 / mc(2)155) (bacteria)
Strain: ATCC 700084 / mc(2)155 / References: UniProt: A0QSD5
#18: Protein 30S ribosomal protein S20 /


Mass: 9556.104 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Mycobacterium smegmatis (strain ATCC 700084 / mc(2)155) (bacteria)
Strain: ATCC 700084 / mc(2)155 / References: UniProt: A0R102
#19: Protein 30S ribosomal protein S2 /


Mass: 30145.230 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Mycobacterium smegmatis (strain ATCC 700084 / mc(2)155) (bacteria)
Strain: ATCC 700084 / mc(2)155 / References: UniProt: A0QVB8
#20: Protein 30S ribosomal protein S18 1 / Ribosome


Mass: 9606.369 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Mycobacterium smegmatis (bacteria) / Strain: ATCC 700084 / mc(2)155 / References: UniProt: A0R549
#22: Protein 30S ribosomal protein S14 /


Mass: 11661.530 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Mycobacterium smegmatis (strain ATCC 700084 / mc(2)155) (bacteria)
Strain: ATCC 700084 / mc(2)155 / References: UniProt: A0R550

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Protein , 2 types, 2 molecules Yg

#21: Protein Ribosome hibernation promoting factor / HPF


Mass: 26447.615 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Mycobacterium smegmatis (bacteria) / Strain: ATCC 700084 / mc(2)155 / References: UniProt: A0QTK6
#23: Protein 50S ribosomal protein L31 /


Mass: 9141.198 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Mycobacterium smegmatis (strain ATCC 700084 / mc(2)155) (bacteria)
Strain: ATCC 700084 / mc(2)155 / References: UniProt: A0R554

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RNA chain / Protein/peptide , 2 types, 2 molecules AB

#1: RNA chain 16S rRNA


Mass: 490111.719 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Mycobacterium smegmatis str. MC2 155 (bacteria)
Strain: ATCC 700084 / mc(2)155 / References: GenBank: 118168627
#2: Protein/peptide Conserved domain protein / Protein domain


Mass: 4033.104 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Mycobacterium smegmatis str. MC2 155 (bacteria)
Strain: ATCC 700084 / mc(2)155 / References: UniProt: A0QR10*PLUS

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: Mycobacterium smegmatis (Cminus) 70S with MPY / Type: RIBOSOME
Details: Mycobacterium smegmatis 30S ribosomal subunit with MPY
Entity ID: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23
Source: NATURAL
Molecular weightExperimental value: NO
Source (natural)Organism: Mycobacterium smegmatis str. MC2 155 (bacteria)
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportDetails: unspecified
VitrificationInstrument: FEI VITROBOT MARK I / Cryogen name: ETHANE / Humidity: 100 %

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: OTHER
Electron lensMode: BRIGHT FIELDBright-field microscopy
Image recordingElectron dose: 67 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

EM software
IDNameVersionCategoryDetails
4RELION2.01CTF correction
10RELION2.01initial Euler assignment
12RELION2.01classificationRelion used for image processing and Refinement
13RELION23D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 205510
SymmetryPoint symmetry: C2 (2 fold cyclic)
3D reconstructionResolution: 3.6 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 66840 / Symmetry type: POINT
Atomic model buildingProtocol: FLEXIBLE FIT / Space: REAL

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