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3UGP

Crystal structure of RNA-polymerase sigma subunit domain 2 complexed with -10 promoter element ssDNA oligo (TATAAT)

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
RNA polymerase sigma factorpolymer24528038.41UniProt (Q9EZJ8)
Pfam (PF00140)
Pfam (PF04542)
Pfam (PF04539)
Thermus aquaticus
2B, C
(B, C)
5'-D(*TP*GP*TP*AP*TP*AP*AP*TP*GP*GP*G)-3'polymer113428.32
3D, E, F, G, H
(B, C)
POTASSIUM IONnon-polymer39.15Chemie (K)
4I, J, K
(A, B, C)
waterwater18.039Chemie (HOH)
Sequence modifications
A: 92 - 332 (UniProt: Q9EZJ8)
PDBExternal DatabaseDetails
Gly 88-expression tag
Pro 89-expression tag
His 90-expression tag
Met 91-expression tag
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains3
Total formula weight34894.9
Non-Polymers*Number of molecules5
Total formula weight195.5
All*Total formula weight35090.4
*Water molecules are not included.

237735

PDB entries from 2025-06-18

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