Term Name:	plastid-encoded plastid RNA polymerase complex A
Synonyms:	PEP-A
Definition:	A plastid-encoded DNA-directed RNA polymerase complex that resembles eubacterial multisubunit RNA polymerases, with a core composed of alpha, beta, and beta-prime subunits. An additional subunit, a sigma factor, is required for promoter recognition. PEP-A is generated from the PEP-B form during chloroplast maturation to generate a complex composed of at least thirteen polypeptides that is not sensitive to the antibiotic rifampicin, like its precursor form the PEP-B complex.
Ontology:	GO: Cellular Component [GO:0000343]    QuickGO    AmiGO