ArticlePlant signaling & behavior2017
Chloroplastic iron-sulfur scaffold protein NFU3 is essential to overall plant fitness.
Article in Plant signaling & behavior, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 18 citations in OpenAlex.
- Gene duplication dynamics and regulatory evolution shape the diversification of Asteraceae.bioRxiv : the preprint server for biology · 2025Article
- Structure, regulation and assembly of the photosynthetic electron transport chain.Nature reviews. Molecular cell biology · 2025Review
- Functional Relationships of Two NFU Proteins in Maintaining the Abundances of Mitochondrial Iron-Sulfur Proteins.Plant direct · 2025Article
- Structure, function, and assembly of PSI in thylakoid membranes of vascular plants.The Plant cell · 2024Review
- Research progress on the biosynthesis and delivery of iron-sulfur clusters in the plastid.Plant cell reports · 2023Review
- Functional relationships of three NFU proteins in the biogenesis of chloroplastic iron-sulfur clusters.Plant direct · 2021Article
- Protection of PSI and PSII complexes of wheat from toxic effect of anthracene by Bacillus subtilis (NCIM 5594).Photosynthesis research · 2020Article
- A Global Proteomic Approach Sheds New Light on Potential Iron-Sulfur Client Proteins of the Chloroplastic Maturation Factor NFU3.International journal of molecular sciences · 2020Article
- Biosynthesis of Sulfur-Containing Small Biomolecules in Plants.International journal of molecular sciences · 2020Review
- Two organelle RNA recognition motif proteins affect distinct sets of RNA editing sites in thePlant direct · 2020Article
- Roles and maturation of iron-sulfur proteins in plastids.Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry · 2018Review
- Assembly and Transfer of Iron-Sulfur Clusters in the Plastid.Frontiers in plant science · 2018Review
- An Organelle RNA Recognition Motif Protein Is Required for Photosystem II SubunitPlant physiology · 2017Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A previous study showed that Nitrogen-Fixing-subunit-U-type protein NFU3 may act an iron-sulfur scaffold protein in the assembly and transfer of 4Fe-4S and 3Fe-4S clusters in the chloroplast. Examples of 4Fe-4S and 3Fe-4S-requiring proteins and complexes include Photosystem I (PSI), NAD(P)H dehydrogenase, and ferredoxin-dependent glutamine oxoglutarate aminotransferases. In this paper, the authors provided additional evidence for the role of NFU3 in 4Fe-4S and 3Fe-4S cluster assembly and transfer, as well as its role in overall plant fitness. Confocal microscopic analysis of the fluorescently-tagged NFU3 protein confirmed the chloroplast localization of the NFU3 protein. Detailed analysis of chlorophyll fluorescence data revealed that a substantial increase in minimal fluorescence is the primary contributor to the decrease in PSII maximum photochemical efficiency observed in the nfu3 mutants. The substantial increase in minimal fluorescence in the nfu3 mutants is probably the result of an impaired PSI function, blockage of electron flow from PSII to PSI, and over-accumulation of reduced plastoquinone at the acceptor side of PSII. Analyses of seed morphology and germination showed that NFU3 is essential to seed development and germination, in addition to plant growth, development, and flowering. In summary, NFU3 has wide-ranging effects on many biologic processes and is therefore important to overall plant fitness. NFU3 may exert these effects by modulating the availability of 4Fe-4S and 3Fe-4S clusters to 4Fe-4S and 3Fe-4S-requiring proteins and complexes involved in various biologic processes.
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