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

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Basic information

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 protein
  • Ribosome hibernation promoting factor
KeywordsRIBOSOME / Hibernation factor complex
Function / homology
Function and homology information


small ribosomal subunit rRNA binding / regulation of translation / small ribosomal subunit / tRNA binding / rRNA binding / ribosome / structural constituent of ribosome / ribonucleoprotein complex / translation / mRNA binding ...small ribosomal subunit rRNA binding / regulation of translation / small ribosomal subunit / tRNA binding / rRNA binding / ribosome / structural constituent of ribosome / ribonucleoprotein complex / translation / mRNA binding / cytosol / cytoplasm
Similarity search - Function
Helix Hairpins - #1480 / Ribosome hibernation promoting factor, long/plastid / Sigma 54 modulation/S30EA ribosomal protein, C-terminal / Sigma 54 modulation/S30EA ribosomal protein, C-terminal domain superfamily / Sigma 54 modulation/S30EA ribosomal protein C terminus / : / Ribosome hibernation promoting factor/RaiA / Ribosome hibernation promotion factor-like / Sigma 54 modulation protein / S30EA ribosomal protein / 30s ribosomal protein s13; domain 2 ...Helix Hairpins - #1480 / Ribosome hibernation promoting factor, long/plastid / Sigma 54 modulation/S30EA ribosomal protein, C-terminal / Sigma 54 modulation/S30EA ribosomal protein, C-terminal domain superfamily / Sigma 54 modulation/S30EA ribosomal protein C terminus / : / Ribosome hibernation promoting factor/RaiA / Ribosome hibernation promotion factor-like / Sigma 54 modulation protein / S30EA ribosomal protein / 30s ribosomal protein s13; domain 2 / Ribosomal protein S13/S18, C-terminal domain / Ribosomal protein S20 / 30s Ribosomal Protein S19; Chain A / Ribosomal protein S19/S15 / Ribosomal protein S3, C-terminal domain / Ribosomal Protein S8; Chain: A, domain 1 - #30 / Ribosomal protein S3 C-terminal domain / Helix hairpin bin / Dna Ligase; domain 1 - #10 / Ribosomal protein S11/S14 / Ribosomal protein S10 / Mitochondrial mRNA-processing protein COX24, C-terminal / Mitochondrial mRNA-processing protein COX24, C-terminal / Mitochondrial domain of unknown function (DUF1713) / K homology (KH) domain / Helicase, Ruva Protein; domain 3 - #50 / Glucose-6-phosphate isomerase like protein; domain 1 / Ribosomal Protein S8; Chain: A, domain 1 / Ribosomal Protein S5; domain 2 - #10 / GMP Synthetase; Chain A, domain 3 / Ribosomal Protein S5; domain 2 / Ribosomal protein S14, bacterial/plastid / Helicase, Ruva Protein; domain 3 / Ribosomal protein S16, conserved site / Ribosomal protein S16 signature. / Ribosomal protein L31 signature. / Nucleic acid-binding proteins / Dna Ligase; domain 1 / Ribosomal protein L31 / Ribosomal protein L31 superfamily / Ribosomal protein L31 / Methane Monooxygenase Hydroxylase; Chain G, domain 1 / Ribosomal protein S3, bacterial-type / Ribosomal protein S6, conserved site / Ribosomal protein S6 signature. / Ribosomal protein S19, bacterial-type / Ribosomal protein S13, bacterial-type / Ribosomal protein S7, bacterial/organellar-type / Ribosomal protein S11, bacterial-type / Ribosomal protein S20 / Ribosomal protein S20 superfamily / Ribosomal protein S20 / Ribosomal protein S9, bacterial/plastid / Ribosomal protein S4, bacterial-type / 30S ribosomal protein S17 / Ribosomal protein S5, bacterial-type / Ribosomal protein S6, plastid/chloroplast / Ribosomal protein S2, bacteria/mitochondria/plastid / Ribosomal protein S18, conserved site / Ribosomal protein S18 signature. / Ribosomal protein S16 / Ribosomal protein S16 domain superfamily / Ribosomal protein S16 / L28p-like / Ribosomal protein S15, bacterial-type / Ribosomal protein S6 / Ribosomal protein S6 / Ribosomal protein S6 superfamily / Ribosomal protein S12, bacterial-type / Translation elongation factor EF1B/ribosomal protein S6 / Ribosomal protein S18 / Ribosomal protein S18 / Ribosomal protein S18 superfamily / K Homology domain / K homology RNA-binding domain / Few Secondary Structures / Irregular / Ribosomal protein S10, conserved site / Ribosomal protein S10 signature. / Ribosomal protein S3, conserved site / Ribosomal protein S3 signature. / Ribosomal protein S2 signature 1. / KH domain / Type-2 KH domain profile. / K Homology domain, type 2 / OB fold (Dihydrolipoamide Acetyltransferase, E2P) / Ribosomal protein S3, C-terminal / Ribosomal protein S3, C-terminal domain / Ribosomal protein S3, C-terminal domain superfamily / Ribosomal protein S15/S19, conserved site / Ribosomal protein S19 signature. / Ribosomal protein S10 / : / Ribosomal protein S19/S15 / Ribosomal protein S19/S15, superfamily / Ribosomal protein S19 / Ribosomal protein S5, N-terminal, conserved site / Ribosomal protein S5 signature. / Ribosomal protein S2, conserved site / Ribosomal protein S7, conserved site
Similarity search - Domain/homology
: / RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / 30S ribosomal protein S6 / Conserved domain protein / Small ribosomal subunit protein uS12 / Small ribosomal subunit protein uS7 / Small ribosomal subunit protein uS10 ...: / RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / 30S ribosomal protein S6 / Conserved domain protein / Small ribosomal subunit protein uS12 / Small ribosomal subunit protein uS7 / Small ribosomal subunit protein uS10 / Small ribosomal subunit protein uS19 / Small ribosomal subunit protein uS3 / Small ribosomal subunit protein uS17 / Small ribosomal subunit protein uS8 / Small ribosomal subunit protein uS5 / Small ribosomal subunit protein uS13 / Small ribosomal subunit protein uS11 / Small ribosomal subunit protein uS4 / Small ribosomal subunit protein uS9 / Ribosome hibernation promoting factor / Small ribosomal subunit protein bS16 / Small ribosomal subunit protein uS2 / Small ribosomal subunit protein uS15 / Small ribosomal subunit protein bS20 / Small ribosomal subunit protein bS18A / Small ribosomal subunit protein uS14A / 50S ribosomal protein L31
Similarity search - Component
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.
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
Revision 1.3Mar 13, 2024Group: Data collection / Database references / Category: chem_comp_atom / chem_comp_bond / database_2
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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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
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: microscopy
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


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


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: all / 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 FIELD
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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