InterPro domain: IPR042107

General Information

  • Identifier IPR042107
  • Description DNA-directed RNA polymerase, beta subunit, external 1 domain superfamily
  • Number of genes 117
  • Gene duplication stats Loading...

Abstract

RNA polymerases catalyse the DNA-dependent polymerisation of RNA. Prokaryotes contain a single RNA polymerase compared with three in eukaryotes (not including mitochondrial or chloroplast polymerases). This superfamily represents a domain found in prokaryotic polymerases that spans the gap between domains 4 and 5 of the protein. It is also known as the external 1 region of the polymerase and is bound in association with the external 2 region [ 1 ].


1. Structural basis of transcription: RNA polymerase II at 2.8 angstrom resolution. Science 292, 1863-76

Species distribution

Gene table