ArticleFrontiers in plant science2021
The Plastid-Encoded RNA Polymerase-Associated Protein PAP9 Is a Superoxide Dismutase With Unusual Structural Features.
Article in Frontiers in plant science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 21 citations in OpenAlex.
- Turning over a green leaf: integrating light signals toward chloroplast establishment.Plant physiology · 2026Review
- The cryo-EM structure of Photosystem I from Chromera velia with a bound superoxide dismutase heterodimer.Nature communications · 2025Article
- Architecture of the spinach plastid-encoded RNA polymerase.Nature communications · 2024Article
- Chloroplast genome characteristic, comparative and phylogenetic analyses in Capsicum (Solanaceae).BMC genomics · 2024Article
- Sequence characteristics, genetic diversity and phylogenetic analysis of the Cucurbita ficifolia (Cucurbitaceae) chloroplasts genome.BMC genomics · 2024Article
- Chloroplast gene expression: Recent advances and perspectives.Plant communications · 2023Review
- Three-Dimensional Envelope and Subunit Interactions of the Plastid-Encoded RNA Polymerase fromInternational journal of molecular sciences · 2022Article
- PAP8/pTAC6 Is Part of a Nuclear Protein Complex and Displays RNA Recognition Motifs of Viral Origin.International journal of molecular sciences · 2022Article
- In Silico Study of Superoxide Dismutase Gene Family in Potato and Effects of Elevated Temperature and Salicylic Acid on Gene Expression.Antioxidants (Basel, Switzerland) · 2022Article
- Sequence Characteristics and Phylogenetic Analysis of theFrontiers in plant science · 2022Article
Corrections and comments
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Authors and funding
8 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In Angiosperms, the plastid-encoded RNA polymerase (PEP) is a multimeric enzyme, essential for the proper expression of the plastid genome during chloroplast biogenesis. It is especially required for the light initiated expression of photosynthesis genes and the subsequent build-up of the photosynthetic apparatus. The PEP complex is composed of a prokaryotic-type core of four plastid-encoded subunits and 12 nuclear-encoded PEP-associated proteins (PAPs). Among them, there are two iron superoxide dismutases, FSD2/PAP9 and FSD3/PAP4. Superoxide dismutases usually are soluble enzymes not bound into larger protein complexes. To investigate this unusual feature, we characterized PAP9 using molecular genetics, fluorescence microscopy, mass spectrometry, X-ray diffraction, and solution-state NMR. Despite the presence of a predicted nuclear localization signal within the sequence of the predicted chloroplast transit peptide, PAP9 was mainly observed within plastids. Mass spectrometry experiments with the recombinant
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