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Term Information

Accession
GO:0000344
Name
plastid-encoded plastid RNA polymerase complex B
Ontology
cellular_component
Synonyms
PEP-B
Alternate IDs
None
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-B is distinguished from PEP-A by its sensitivity to the antibiotic rifampicin. PEP-B is found in both etioplasts and chloroplasts, but is the predominate form in etioplasts. It forms the core of the PEP-A form; the conversion from PEP-B to PEP-A occurs during chloroplast maturation. Source: PMID:10946105
Comment
None
History
See term history for GO:0000344 at QuickGO
Subset
None
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Parents of plastid-encoded plastid RNA polymerase complex B (GO:0000344)
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plastid-encoded plastid RNA polymerase complex B [is_a relation] is_a  plastid-encoded plastid RNA polymerase complex (GO:0000427)

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