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GO_term: GO:0000343   

GO:0000343DefinitionThe plastid-encoded plastid RNA polymerase A (PEP-A) is a plastid-encoded DNA-directed RNA polymerase 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.
Termplastid-encoded plastid RNA polymerase complex A
TypeCellular_component
Parent (2)
Attributes_of Index Ancestor (28)
DescendentGO:0000343