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- PDB-5vi8: Structure of a mycobacterium smegmatis transcription initiation c... -

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Basic information

Entry
Database: PDB / ID: 5vi8
TitleStructure of a mycobacterium smegmatis transcription initiation complex with an upstream-fork promoter fragment
Components
  • (DNA-directed RNA polymerase subunit ...) x 5
  • DNA (26-MER)
  • DNA (31-MER)
  • RNA polymerase sigma factor SigA
  • RNA polymerase-binding protein RbpA
KeywordsTRANSCRIPTION / DNA-dependent RNA polymerase / nucleotidyl transferase / transcription initiation complex
Function / homology
Function and homology information


sigma factor activity / bacterial-type RNA polymerase core enzyme binding / DNA-directed RNA polymerase complex / DNA-templated transcription initiation / ribonucleoside binding / DNA-directed RNA polymerase / DNA-directed RNA polymerase activity / protein dimerization activity / response to antibiotic / DNA-templated transcription ...sigma factor activity / bacterial-type RNA polymerase core enzyme binding / DNA-directed RNA polymerase complex / DNA-templated transcription initiation / ribonucleoside binding / DNA-directed RNA polymerase / DNA-directed RNA polymerase activity / protein dimerization activity / response to antibiotic / DNA-templated transcription / positive regulation of DNA-templated transcription / magnesium ion binding / DNA binding / zinc ion binding / cytoplasm
Similarity search - Function
RNA polymerase-binding protein RbpA / RbpA superfamily / RNA polymerase-binding protein / RNA polymerase Rpb1, domain 3 / RNA polymerase Rpb1 funnel domain / RNA polymerase, RBP11-like subunit / Enzyme I; Chain A, domain 2 / Sigma-70 factors family signature 1. / Topoisomerase I; Chain A, domain 4 / DNA-directed RNA polymerase, insert domain ...RNA polymerase-binding protein RbpA / RbpA superfamily / RNA polymerase-binding protein / RNA polymerase Rpb1, domain 3 / RNA polymerase Rpb1 funnel domain / RNA polymerase, RBP11-like subunit / Enzyme I; Chain A, domain 2 / Sigma-70 factors family signature 1. / Topoisomerase I; Chain A, domain 4 / DNA-directed RNA polymerase, insert domain / RNA polymerase sigma factor RpoD, C-terminal / RNA polymerase sigma factor RpoD / RNA Polymerase Alpha Subunit; Chain A, domain 2 / : / RNA polymerase sigma-70 region 1.2 / Sigma-70 factor, region 1.2 / RNA polymerase sigma-70 region 3 / Sigma-70 region 3 / Sigma-70 factors family signature 2. / RNA polymerase sigma-70 / RNA polymerase sigma-70 region 4 / Sigma-70, region 4 / RNA polymerase sigma-70 region 2 / RNA polymerase sigma-70 like domain / Sigma-70 region 2 / RNA polymerase sigma factor, region 2 / RNA polymerase sigma factor, region 3/4-like / Gyrase A; domain 2 / DNA-directed RNA polymerase, omega subunit / DNA-directed RNA polymerase, subunit beta-prime, bacterial type / DNA-directed RNA polymerase, beta subunit, external 1 domain superfamily / DNA-directed RNA polymerase, beta subunit, external 1 domain / RNA polymerase beta subunit external 1 domain / RNA polymerase, alpha subunit, C-terminal / Bacterial RNA polymerase, alpha chain C terminal domain / DNA-directed RNA polymerase beta subunit, bacterial-type / DNA-directed RNA polymerase, alpha subunit / Beta Complex / DNA-directed RNA polymerase, subunit beta-prime / RNA polymerase Rpb6 / RNA polymerase, subunit omega/Rpo6/RPB6 / RNA polymerase Rpb6 / RNA polymerase Rpb2, domain 2 superfamily / RNA polymerase Rpb1, domain 3 superfamily / RPB6/omega subunit-like superfamily / DNA-directed RNA polymerase, insert domain / DNA-directed RNA polymerase, RpoA/D/Rpb3-type / RNA polymerase Rpb3/RpoA insert domain / RNA polymerase Rpb3/Rpb11 dimerisation domain / RNA polymerases D / RNA polymerase Rpb1, clamp domain superfamily / RNA polymerase Rpb1, domain 3 / RNA polymerase Rpb1, domain 3 / RNA polymerase Rpb1, domain 1 / RNA polymerase Rpb1, domain 1 / RNA polymerase, beta subunit, protrusion / RNA polymerase beta subunit / RNA polymerase, alpha subunit / RNA polymerase Rpb1, domain 5 / RNA polymerase Rpb1, domain 4 / RNA polymerase Rpb1, domain 2 / RNA polymerase Rpb1, domain 5 / RNA polymerase Rpb1, domain 4 / DNA-directed RNA polymerase, insert domain superfamily / RNA polymerase, N-terminal / RNA polymerase Rpb2, domain 2 / RNA polymerase Rpb1, funnel domain superfamily / RNA polymerase Rpb2, domain 2 / RNA polymerase I subunit A N-terminus / RNA polymerase, RBP11-like subunit / RNA polymerase, beta subunit, conserved site / RNA polymerase Rpb2, domain 7 / RNA polymerase Rpb2, domain 3 / RNA polymerase Rpb2, OB-fold / RNA polymerase Rpb2, domain 7 / RNA polymerase Rpb2, domain 3 / RNA polymerases beta chain signature. / DNA-directed RNA polymerase, subunit 2, hybrid-binding domain / DNA-directed RNA polymerase, subunit 2 / DNA-directed RNA polymerase, subunit 2, hybrid-binding domain superfamily / RNA polymerase Rpb2, domain 6 / Winged helix-like DNA-binding domain superfamily / 2-Layer Sandwich / Orthogonal Bundle / Mainly Beta / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
DNA / DNA (> 10) / DNA-directed RNA polymerase subunit beta' / DNA-directed RNA polymerase subunit alpha / RNA polymerase sigma factor SigA / DNA-directed RNA polymerase subunit omega / RNA polymerase-binding protein RbpA / DNA-directed RNA polymerase subunit beta
Similarity search - Component
Biological speciesMycobacterium smegmatis (bacteria)
synthetic construct (others)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.76 Å
AuthorsHubin, E.A. / Campbell, E.A. / Darst, S.A.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01 GM114450 United States
CitationJournal: Nat Commun / Year: 2017
Title: Structural insights into the mycobacteria transcription initiation complex from analysis of X-ray crystal structures.
Authors: Hubin, E.A. / Lilic, M. / Darst, S.A. / Campbell, E.A.
History
DepositionApr 14, 2017Deposition site: RCSB / Processing site: RCSB
Revision 1.0Apr 26, 2017Provider: repository / Type: Initial release
Revision 1.1Sep 20, 2017Group: Author supporting evidence / Category: pdbx_audit_support / Item: _pdbx_audit_support.funding_organization
Revision 1.2Jan 30, 2019Group: Data collection / Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _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
Revision 1.3Jan 1, 2020Group: Author supporting evidence / Category: pdbx_audit_support / Item: _pdbx_audit_support.funding_organization
Revision 1.4Oct 4, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / struct_conn / struct_conn_type
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_conn.conn_type_id / _struct_conn.id / _struct_conn.pdbx_dist_value / _struct_conn.pdbx_leaving_atom_flag / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn_type.id
Revision 1.5Dec 25, 2024Group: Advisory / Derived calculations / Structure summary
Category: pdbx_entry_details / pdbx_validate_close_contact ...pdbx_entry_details / pdbx_validate_close_contact / struct_conn / struct_conn_type
Revision 1.6Jan 22, 2025Group: Advisory / Category: pdbx_database_PDB_obs_spr

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
J: RNA polymerase-binding protein RbpA
A: DNA-directed RNA polymerase subunit alpha
B: DNA-directed RNA polymerase subunit alpha
C: DNA-directed RNA polymerase subunit beta
D: DNA-directed RNA polymerase subunit beta'
E: DNA-directed RNA polymerase subunit omega
F: RNA polymerase sigma factor SigA
O: DNA (31-MER)
P: DNA (26-MER)
T: DNA-directed RNA polymerase subunit alpha
hetero molecules


Theoretical massNumber of molelcules
Total (without water)457,77531
Polymers456,09410
Non-polymers1,68021
Water1,964109
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area53800 Å2
ΔGint-390 kcal/mol
Surface area146950 Å2
Unit cell
Length a, b, c (Å)133.012, 161.633, 139.211
Angle α, β, γ (deg.)90.00, 107.72, 90.00
Int Tables number4
Space group name H-MP1211

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Components

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Protein , 2 types, 2 molecules JF

#1: Protein RNA polymerase-binding protein RbpA


Mass: 13078.731 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mycobacterium smegmatis (strain ATCC 700084 / mc(2)155) (bacteria)
Strain: ATCC 700084 / mc(2)155 / Gene: rbpA, MSMEG_3858, MSMEI_3768 / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: A0QZ11
#6: Protein RNA polymerase sigma factor SigA


Mass: 51573.551 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mycobacterium smegmatis (strain ATCC 700084 / mc(2)155) (bacteria)
Strain: ATCC 700084 / mc(2)155 / Gene: rpoD, sigA, MSMEG_2758, MSMEI_2690 / Production host: Escherichia coli BL21 (bacteria) / References: UniProt: A0QW02

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DNA-directed RNA polymerase subunit ... , 5 types, 6 molecules ABCDET

#2: Protein DNA-directed RNA polymerase subunit alpha / RNAP subunit alpha / RNA polymerase subunit alpha / Transcriptase subunit alpha


Mass: 37959.441 Da / Num. of mol.: 2 / 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: A0QSL8, DNA-directed RNA polymerase
#3: Protein DNA-directed RNA polymerase subunit beta / RNAP subunit beta / RNA polymerase subunit beta / Transcriptase subunit beta


Mass: 128680.141 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: P60281, DNA-directed RNA polymerase
#4: Protein DNA-directed RNA polymerase subunit beta' / RNAP subunit beta' / RNA polymerase subunit beta' / Transcriptase subunit beta'


Mass: 146712.891 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: A0QS66, DNA-directed RNA polymerase
#5: Protein DNA-directed RNA polymerase subunit omega / RNAP omega subunit / RNA polymerase omega subunit / Transcriptase subunit omega


Mass: 11544.763 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: A0QWT1, DNA-directed RNA polymerase
#9: Protein DNA-directed RNA polymerase subunit alpha / RNAP subunit alpha / RNA polymerase subunit alpha / Transcriptase subunit alpha


Mass: 11090.043 Da / Num. of mol.: 1 / Fragment: C-terminal residues 251-350 / 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: A0QSL8, DNA-directed RNA polymerase

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DNA chain , 2 types, 2 molecules OP

#7: DNA chain DNA (31-MER)


Mass: 9565.193 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)
#8: DNA chain DNA (26-MER)


Mass: 7930.155 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)

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Non-polymers , 5 types, 130 molecules

#10: Chemical
ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 12 / Source method: obtained synthetically / Formula: SO4
#11: Chemical
ChemComp-EDO / 1,2-ETHANEDIOL / ETHYLENE GLYCOL


Mass: 62.068 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: C2H6O2
#12: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Zn
#13: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Mg
#14: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 109 / Source method: isolated from a natural source / Formula: H2O

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Details

Has protein modificationN

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 3.13 Å3/Da / Density % sol: 60.64 %
Crystal growTemperature: 298 K / Method: vapor diffusion, hanging drop / pH: 6
Details: 0.1 M Bis-Tris, pH 6, 0.2 M Lithium sulfate, 16% (w/v) polyethylene glycol 3350, 2.5% (v/v) ethylene glycol

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: APS / Beamline: 24-ID-E / Wavelength: 0.97919 Å
DetectorType: ADSC QUANTUM 315 / Detector: CCD / Date: Mar 13, 2016
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.97919 Å / Relative weight: 1
ReflectionResolution: 2.76→51.99 Å / Num. obs: 143776 / % possible obs: 99 % / Redundancy: 16.2 % / CC1/2: 0.998 / Rmerge(I) obs: 0.2343 / Rpim(I) all: 0.059 / Net I/σ(I): 22.39

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Processing

Software
NameVersionClassification
PHENIX(1.10.1_2155)refinement
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 4XLP

4xlp


Resolution: 2.76→51.99 Å / SU ML: 0.59 / Cross valid method: FREE R-VALUE / σ(F): 1.33 / Phase error: 35.23
RfactorNum. reflection% reflectionSelection details
Rfree0.2809 1969 1.38 %random selection
Rwork0.2403 ---
obs0.2409 143074 99.5 %-
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å
Refinement stepCycle: LAST / Resolution: 2.76→51.99 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms25239 1160 87 109 26595
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.00227010
X-RAY DIFFRACTIONf_angle_d0.63636885
X-RAY DIFFRACTIONf_dihedral_angle_d14.68216231
X-RAY DIFFRACTIONf_chiral_restr0.0424267
X-RAY DIFFRACTIONf_plane_restr0.0044641
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
2.76-2.8290.46061390.46029798X-RAY DIFFRACTION97
2.829-2.90550.41411380.42199988X-RAY DIFFRACTION99
2.9055-2.9910.48171400.397510041X-RAY DIFFRACTION99
2.991-3.08750.39951410.359310094X-RAY DIFFRACTION100
3.0875-3.19790.35781370.318410019X-RAY DIFFRACTION100
3.1979-3.32590.35621530.292710158X-RAY DIFFRACTION100
3.3259-3.47720.32481310.286910052X-RAY DIFFRACTION100
3.4772-3.66050.3331470.267710134X-RAY DIFFRACTION100
3.6605-3.88980.29561350.252110048X-RAY DIFFRACTION100
3.8898-4.19010.26691360.230410104X-RAY DIFFRACTION99
4.1901-4.61150.251460.20210075X-RAY DIFFRACTION100
4.6115-5.27840.24731400.20310137X-RAY DIFFRACTION100
5.2784-6.64840.25241390.224610205X-RAY DIFFRACTION100
6.6484-54.9160.2091470.175810252X-RAY DIFFRACTION100

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