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7PP4

Cryo-EM structure of Mycobacterium tuberculosis RNA polymerase holoenzyme comprising sigma factor SigB

Functional Information from GO Data
ChainGOidnamespacecontents
a0003677molecular_functionDNA binding
a0003899molecular_functionDNA-directed RNA polymerase activity
a0005737cellular_componentcytoplasm
a0005829cellular_componentcytosol
a0005886cellular_componentplasma membrane
a0006351biological_processDNA-templated transcription
a0034062molecular_function5'-3' RNA polymerase activity
a0046983molecular_functionprotein dimerization activity
b0003677molecular_functionDNA binding
b0003899molecular_functionDNA-directed RNA polymerase activity
b0005737cellular_componentcytoplasm
b0005829cellular_componentcytosol
b0005886cellular_componentplasma membrane
b0006351biological_processDNA-templated transcription
b0034062molecular_function5'-3' RNA polymerase activity
b0046983molecular_functionprotein dimerization activity
c0000345cellular_componentcytosolic DNA-directed RNA polymerase complex
c0003677molecular_functionDNA binding
c0003899molecular_functionDNA-directed RNA polymerase activity
c0005515molecular_functionprotein binding
c0005829cellular_componentcytosol
c0005886cellular_componentplasma membrane
c0006351biological_processDNA-templated transcription
c0006352biological_processDNA-templated transcription initiation
c0006354biological_processDNA-templated transcription elongation
c0032549molecular_functionribonucleoside binding
c0034062molecular_function5'-3' RNA polymerase activity
d0000287molecular_functionmagnesium ion binding
d0003677molecular_functionDNA binding
d0003899molecular_functionDNA-directed RNA polymerase activity
d0005829cellular_componentcytosol
d0005886cellular_componentplasma membrane
d0006351biological_processDNA-templated transcription
d0008270molecular_functionzinc ion binding
d0034062molecular_function5'-3' RNA polymerase activity
e0000345cellular_componentcytosolic DNA-directed RNA polymerase complex
e0001000molecular_functionbacterial-type RNA polymerase core enzyme binding
e0003677molecular_functionDNA binding
e0003899molecular_functionDNA-directed RNA polymerase activity
e0005829cellular_componentcytosol
e0006351biological_processDNA-templated transcription
e0006352biological_processDNA-templated transcription initiation
e0034062molecular_function5'-3' RNA polymerase activity
f0001666biological_processresponse to hypoxia
f0003677molecular_functionDNA binding
f0003700molecular_functionDNA-binding transcription factor activity
f0005515molecular_functionprotein binding
f0006352biological_processDNA-templated transcription initiation
f0006355biological_processregulation of DNA-templated transcription
f0009408biological_processresponse to heat
f0009410biological_processresponse to xenobiotic stimulus
f0016987molecular_functionsigma factor activity
f0043175molecular_functionRNA polymerase core enzyme binding
f0045893biological_processpositive regulation of DNA-templated transcription
f1903865cellular_componentsigma factor antagonist complex
f2000142biological_processregulation of DNA-templated transcription initiation
Functional Information from PROSITE/UniProt
site_idPS00715
Number of Residues14
DetailsSIGMA70_1 Sigma-70 factors family signature 1. DLIQeGnLGLIrAM
ChainResidueDetails
fASP114-MET127

site_idPS00716
Number of Residues27
DetailsSIGMA70_2 Sigma-70 factors family signature 2. TldQIGklfgLSrerVrQIErdvMskL
ChainResidueDetails
fTHR283-LEU309

site_idPS00867
Number of Residues8
DetailsCPSASE_2 Carbamoyl-phosphate synthase subdomain signature 2. LLEANLRL
ChainResidueDetails
fLEU90-LEU97

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues11
DetailsBinding site: {"evidences":[{"source":"HAMAP-Rule","id":"MF_01322","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues34
DetailsRegion: {"description":"Sigma-70 factor domain-1"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues3
DetailsMotif: {"description":"Polymerase core binding","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

253389

PDB entries from 2026-05-13

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