1sig

X-ray diffraction
2.6Å resolution

CRYSTAL STRUCTURE OF A SIGMA70 SUBUNIT FRAGMENT FROM ESCHERICHIA COLI RNA POLYMERASE

Released:
Model geometry
Fit model/data

Function and Biology Details

Structure analysis Details

Assembly composition:
monomeric (preferred)
PDBe Complex ID:
PDB-CPX-132727 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
RNA polymerase sigma factor RpoD Chain: A
Molecule details ›
Chain: A
Length: 339 amino acids
Theoretical weight: 39.09 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P00579 (Residues: 114-448; Coverage: 55%)
Gene names: JW3039, alt, b3067, rpoD
Sequence domains:
Structure domains: RNA Polymerase Primary Sigma Factor

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X4A
Spacegroup: P41212
Unit cell:
a: 79.229Å b: 79.229Å c: 134.06Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.218 0.218 0.315
Expression system: Escherichia coli BL21(DE3)