ArticlePlanta2008
The chloroplast outer membrane protein CHUP1 interacts with actin and profilin.
Article in Planta, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
53 citing papers in PubMed, 107 citations in OpenAlex.
- PERSPECTIVE: organelle positioning as a principle of metabolic regulation and stress tolerance.The Plant journal : for cell and molecular biology · 2026Review
- Membrane contact sites between chloroplasts and the pathogen interface underpin plant focal immune responses.The Plant cell · 2025Article
- Chloroplast-actin filaments decide the direction of chloroplast avoidance movement under strong light in Arabidopsis thaliana.Journal of plant research · 2024Article
- CHLOROPLAST UNUSUAL POSITIONING 1 is a plant-specific actin polymerization factor regulating chloroplast movement.The Plant cell · 2024Article
- FKF1 Interacts with CHUP1 and Regulates Chloroplast Movement in Arabidopsis.Plants (Basel, Switzerland) · 2023Article
- Formin protein DRT1 affects gross morphology and chloroplast relocation in rice.Plant physiology · 2023Article
- Article
- The action of enhancing weak light capture via phototropic growth and chloroplast movement in plants.Stress biology · 2022Review
- Functional Characterization of anMolecules (Basel, Switzerland) · 2022Article
- Light-induced displacement of PLASTID MOVEMENT IMPAIRED1 precedes light-dependent chloroplast movements.Plant physiology · 2022Article
- The Passage of HPlants (Basel, Switzerland) · 2022Review
- Light-dependent phosphorylation of THRUMIN1 regulates its association with actin filaments and 14-3-3 proteins.Plant physiology · 2021Article
- Organelle extensions in plant cells.Plant physiology · 2021Article
- Phototropin 1 Mediates High-Intensity Blue Light-Induced Chloroplast Accumulation Response in a Root Phototropism 2-Dependent Manner inFrontiers in plant science · 2021Article
- Impaired chloroplast positioning affects photosynthetic capacity and regulation of the central carbohydrate metabolism during cold acclimation.Photosynthesis research · 2021Article
- Chloroplasts in C3 grasses move in response to blue-light.Plant cell reports · 2020Article
- Arabidopsis IPGA1 is a microtubule-associated protein essential for cell expansion during petal morphogenesis.Journal of experimental botany · 2019Article
- Chloroplast aggregation during the cold-positioning response in the liverwort Marchantia polymorpha.Journal of plant research · 2017Article
- Roles of actin cytoskeleton for regulation of chloroplast anchoring.Plant signaling & behavior · 2017Article
- Proteomic analysis of Potentilla fruticosa L. leaves by iTRAQ reveals responses to heat stress.PloS one · 2017Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Chloroplasts accumulate in response to low light, whereas high light induces an actin-dependent avoidance movement. This is a long known process, but its molecular base is barely understood. Only recently first components of the blue light perceiving signal cascade initiating this process were described. Among these, a protein was identified by the analysis of a deletion mutant in the corresponding gene resulting in a chloroplast unusual positioning phenotype. The protein was termed CHUP1 and initial results suggested chloroplast localization. We demonstrate that the protein is indeed exclusively and directly targeted to the chloroplast surface. The analysis of the deletion mutant of CHUP1 using microarray analysis shows an influence on the expression of genes found to be up-regulated, but not on genes found to be down-regulated upon high light exposure in wild-type. Analyzing a putative role of CHUP1 as a linker between chloroplasts and the cytoskeleton, we demonstrate an interaction with actin, which is independent on the filamentation status of actin. Moreover, binding of CHUP1 to profilin -- an actin modifying protein -- could be shown and an enhancing effect of CHUP1 on the interaction of profilin to actin is demonstrated. Therefore, a role of CHUP1 in bridging chloroplasts to actin filaments and a regulatory function in actin polymerization can be discussed.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.