SMTL ID : 9isn.1

Cryo-EM structure of Streptomyces coelicolor sigma factor shbA transcription initiation complex

Coordinates

PDB Format Compare

Method

ELECTRON MICROSCOPY

Oligo State

hetero-2-1-1-1-mer

Ligands

1 x MG: MAGNESIUM ION(Non-covalent)

MG.1: 3 residues within 4Å: Chain D: D.535, D.537, D.539 2 PLIP interactions: 2 interactions with chain D Metal complexes: D:D.535, D:D.539

2 x ZN: ZINC ION(Non-covalent)

ZN.2: 4 residues within 4Å: Chain D: C.60, C.62, C.75, C.78 4 PLIP interactions: 4 interactions with chain D Metal complexes: D:C.60, D:C.62, D:C.75, D:C.78 ZN.3: 4 residues within 4Å: Chain D: C.886, C.962, C.969, C.972 4 PLIP interactions: 4 interactions with chain D Metal complexes: D:C.886, D:C.962, D:C.969, D:C.972

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Liu, G. et al., Molecular basis of Streptomyces ECF sigma ShbA factors transcribing principal sigma HrdB genes. Nucleic Acids Res. (2025)

Release Date

2025-05-14

Peptides

DNA-directed RNA polymerase subunit alpha: AB
DNA-directed RNA polymerase subunit beta: C
DNA-directed RNA polymerase subunit beta': D
ECF sigma factor: E

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

C
C

D
D

E
F

DNA-directed RNA polymerase subunit alpha

DNA-directed RNA polymerase subunit beta

DNA-directed RNA polymerase subunit beta'

ECF sigma factor

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