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1KU2

Crystal Structure of Thermus aquaticus RNA Polymerase Sigma Subunit Fragment Containing Regions 1.2 to 3.1

Functional Information from GO Data
ChainGOidnamespacecontents
A0003677molecular_functionDNA binding
A0003700molecular_functionDNA-binding transcription factor activity
A0006352biological_processDNA-templated transcription initiation
A0006355biological_processregulation of DNA-templated transcription
A0016987molecular_functionsigma factor activity
B0003677molecular_functionDNA binding
B0003700molecular_functionDNA-binding transcription factor activity
B0006352biological_processDNA-templated transcription initiation
B0006355biological_processregulation of DNA-templated transcription
B0016987molecular_functionsigma factor activity
Functional Information from PDB Data
site_idAC1
Number of Residues2
DetailsBINDING SITE FOR RESIDUE SO4 A 1
ChainResidue
AARG237
BARG246

site_idAC2
Number of Residues2
DetailsBINDING SITE FOR RESIDUE SO4 A 2
ChainResidue
AARG246
BARG237

Functional Information from PROSITE/UniProt
site_idPS00867
Number of Residues8
DetailsCPSASE_2 Carbamoyl-phosphate synthase subdomain signature 2. LIEANLRL
ChainResidueDetails
ALEU202-LEU209

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues70
DetailsRegion: {"description":"Sigma-70 factor domain-1"}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues140
DetailsRegion: {"description":"Sigma-70 factor domain-2"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues6
DetailsMotif: {"description":"Interaction with polymerase core subunit RpoC"}
ChainResidueDetails

246031

PDB entries from 2025-12-10

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