Proteins
Curated comments from UniProt
Type | Comment | Proteins |
---|---|---|
PTAC6_ARATH | function | Essential protein involved in plastid gene expression and in chloroplast biogenesis (PubMed:16326926, PubMed:31128276, PubMed:33001465, PubMed:35328480). Links photomorphogenesis and chloroplast biogenesis through its dual localization; required for the formation of late photobodies in the nucleus, as well as for phytochrome B-mediated signaling cascade and subsequent reshaping of the plastid-encoded RNA polymerase (PEP) activity (PubMed:33001465). Binds RNA via specific recognition motifs of viral origin (PubMed:35328480). Recruited by MTERF5 to the transcriptionally paused region of psbEFLJ (PubMed:31128276). Promotes leaf greening (PubMed:24272250). |
PTAC6_ARATH | subcellular location | Translocates to the chloroplast via its transit peptide and then take part of the plastid-encoded RNA polymerase (PEP) complex (PubMed:33001465). When in the nucleus, can bind to PTAC12/HMR/PAP5 (PubMed:33001465). Both localization are observed in the dark or under white light, mainly present in the nucleus of etiolated seedlings while enriched in chloroplast after light exposure (PubMed:33001465, PubMed:35328480). |
PTAC6_ARATH | tissue specificity | Mostly expressed in rosette leaves, stems and flowers, and, to a lower extent, in roots and cauline leaves. |
Function
Gene Ontology
cellular component | |
---|---|
chloroplast nucleoid | ECO |
chloroplast thylakoid | ECO |
nucleus | ECO |
nucleoplasm | ECO |
plastid-encoded plastid RNA polymerase complex | ECO |
chloroplast | ECO |
cytoplasm | ECO |
molecular function | |
RNA binding | ECO |
biological process | |
red or far-red light signaling pathway | ECO |
positive regulation of DNA-templated transcription | ECO |
chloroplast organization | ECO |
response to cytokinin | ECO |
regulation of DNA-templated transcription | ECO |
plastid transcription | ECO |
response to light stimulus | ECO |
Interactions
Interaction Network
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