Three-Dimensional Envelope and Subunit Interactions of the Plastid-Encoded RNA Polymerase from
PEP associated proteins
Sinapis alba
chloroplast biogenesis
photomorphogenesis
photosynthesis
plastid-encoded RNA polymerase
transcription
Journal
International journal of molecular sciences
ISSN: 1422-0067
Titre abrégé: Int J Mol Sci
Pays: Switzerland
ID NLM: 101092791
Informations de publication
Date de publication:
31 Aug 2022
31 Aug 2022
Historique:
received:
13
07
2022
revised:
25
08
2022
accepted:
26
08
2022
entrez:
9
9
2022
pubmed:
10
9
2022
medline:
14
9
2022
Statut:
epublish
Résumé
RNA polymerases (RNAPs) are found in all living organisms. In the chloroplasts, the plastid-encoded RNA polymerase (PEP) is a prokaryotic-type multimeric RNAP involved in the selective transcription of the plastid genome. One of its active states requires the assembly of nuclear-encoded PEP-Associated Proteins (PAPs) on the catalytic core, producing a complex of more than 900 kDa, regarded as essential for chloroplast biogenesis. In this study, sequence alignments of the catalytic core subunits across various chloroplasts of the green lineage and prokaryotes combined with structural data show that variations are observed at the surface of the core, whereas internal amino acids associated with the catalytic activity are conserved. A purification procedure compatible with a structural analysis was used to enrich the native PEP from
Identifiants
pubmed: 36077319
pii: ijms23179922
doi: 10.3390/ijms23179922
pmc: PMC9456514
pii:
doi:
Substances chimiques
Arabidopsis Proteins
0
DNA-Directed RNA Polymerases
EC 2.7.7.6
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Subventions
Organisme : Agence Nationale de la Recherche
ID : ANR-17-CE11-0031-02, ANR-10-INBS-0005-02, ANR-17-EURE-0003
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