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4XLQ

Crystal structure of T.aquaticus transcription initiation complex containing upstream fork (-11 base-paired) promoter

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, B, G, H
(A, B, G, H)
DNA-directed RNA polymerase subunit alphapolymer31434830.94UniProt (Q9KWU8)Thermus aquaticusRNAP subunit alpha,RNA polymerase subunit alpha,Transcriptase subunit alpha
2C, I
(C, I)
DNA-directed RNA polymerase subunit betapolymer1119124930.02UniProt (Q9KWU7)Thermus aquaticusRNAP subunit beta,RNA polymerase subunit beta,Transcriptase subunit beta
3D, J
(D, J)
DNA-directed RNA polymerase subunit beta'polymer1524171187.52UniProt (Q9KWU6)Thermus aquaticusRNAP subunit beta',RNA polymerase subunit beta',Transcriptase subunit beta'
4E, K
(E, K)
DNA-directed RNA polymerase subunit omegapolymer9911642.42UniProt (Q9EVV4)Thermus aquaticusRNAP omega subunit,RNA polymerase omega subunit,Transcriptase subunit omega
5F, L
(F, L)
RNA polymerase sigma factor SigApolymer34739864.72UniProt (Q9EZJ8)Thermus aquaticus
6M, O
(O, R)
DNA (30-MER)polymer309236.02synthetic constructDNA non-template strand
7N, P
(P, S)
DNA (26-MER)polymer267945.22synthetic constructDNA template strand
8Q, R, T, U
(D, J)
ZINC IONnon-polymer65.44Chemie (ZN)
9S, V
(D, J)
MAGNESIUM IONnon-polymer24.32Chemie (MG)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains16
Total formula weight868935.2
Non-Polymers*Number of molecules6
Total formula weight310.2
All*Total formula weight869245.5
*Water molecules are not included.

249697

PDB entries from 2026-02-25

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