ArticleThe Journal of biological chemistry2015
Small GTPase Rab2B and Its Specific Binding Protein Golgi-associated Rab2B Interactor-like 4 (GARI-L4) Regulate Golgi Morphology.
Article in The Journal of biological chemistry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.
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Who cites it
44 citing papers in PubMed, 68 citations in OpenAlex.
- Functional characterization of Griscelli syndrome type 2 sine albinism in Japanese patients.Journal of human immunity · 2026Article
- Platelet proteomic signatures of amyloid β-positive mild cognitive impairment and Alzheimer's disease.Molecular brain · 2026Article
- Neddylation-dependent RAB40-Cullin5 E3 ligase complex controls ubiquitin-mediated proteasomal degradation of DNAJC13.BBA advances · 2026Article
- Discoidin, CUB and LCCL domain containing 2 modulates angiogenesis by inhibiting VEGF receptor 2 endocytosis in endothelial cells.Journal of molecular medicine (Berlin, Germany) · 2025Article
- Comprehensive knockout analysis of the RAB family small GTPases reveals an overlapping role of RAB2 and RAB14 in autophagosome maturation.Autophagy · 2025Article
- Rab2A-mediated Golgi-lipid droplet interactions support very-low-density lipoprotein secretion in hepatocytes.The EMBO journal · 2024Article
- Article
- A dual role of ERGIC-localized Rabs in TMED10-mediated unconventional protein secretion.Nature cell biology · 2024Article
- Golgi associated RAB2 interactor protein family contributes to murine male fertility to various extents by assuring correct morphogenesis of sperm heads.PLoS genetics · 2024Article
- The Role of Rab GTPases in the development of genetic and malignant diseases.Molecular and cellular biochemistry · 2024Review
- PRKD3 promotes proliferation of liver cancer cells: a downstream proteomics profiling study.American journal of translational research · 2024Article
- Integration of risk variants from GWAS with SARS-CoV-2 RNA interactome prioritizes FUBP1 and RAB2A as risk genes for COVID-19.Scientific reports · 2023Article
- Hesperetin Ameliorates Inhibition of Neuronal and Oligodendroglial Cell Differentiation Phenotypes Induced by Knockdown of Rab2b, an Autism Spectrum Disorder-Associated Gene Product.Neurology international · 2023Article
- The fate of porcine sperm CRISP2 from the perinuclear theca before and after in vitro fertilization†.Biology of reproduction · 2022Article
- Long noncoding RNA NONMMUT015745 inhibits doxorubicin-mediated cardiomyocyte apoptosis by regulating Rab2A-p53 axis.Cell death discovery · 2022Article
- Identification of Ten-Gene Related to Lipid Metabolism for Predicting Overall Survival of Breast Invasive Carcinoma.Contrast media & molecular imaging · 2022Article
- Genome-Wide Association Analysis for Candidate Genes Contributing to Kernel-Related Traits in Maize.Frontiers in plant science · 2022Article
- Focus on the Small GTPase Rab1: A Key Player in the Pathogenesis of Parkinson's Disease.International journal of molecular sciences · 2021Review
- FAM71F1 binds to RAB2A and RAB2B and is essential for acrosome formation and male fertility in mice.Development (Cambridge, England) · 2021Article
- The Regulation of Rab GTPases by Phosphorylation.Biomolecules · 2021Review
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Rab small GTPases are crucial regulators of the membrane traffic that maintains organelle identity and morphology. Several Rab isoforms are present in the Golgi, and it has been suggested that they regulate the compacted morphology of the Golgi in mammalian cells. However, the functional relationships among the Golgi-resident Rabs, e.g. whether they are functionally redundant or different, are poorly understood. In this study, we used specific siRNAs to perform genome-wide screening for human Rabs that are involved in Golgi morphology in HeLa-S3 cells. The results showed that knockdown of any one of the six Rab isoforms (Rab1A/1B/2A/2B/6B/8A) induced fragmentation of the Golgi in HeLa-S3 cells and that its phenotype was rescued by re-expression of their respective siRNA-resistant construct. We then performed systematic knockdown-rescue experiments in relation to each of the six Rabs. Interestingly, with the exception of the Rab8A knockdown, the Golgi fragmentation phenotype induced by knockdown of a single Rab isoform, e.g. Rab2B, was efficiently rescued by re-expression of its siRNA-resistant Rab alone, not by any of the other five Rabs, e.g. Rab2A, which is highly homologous to Rab2B, indicating that these Rab isoforms non-redundantly regulate Golgi morphology possibly through interaction with isoform-specific effector molecules. In addition, we identified Golgi-associated Rab2B interactor-like 4 (GARI-L4) as a novel Golgi-resident Rab2B-specific binding protein whose knockdown also induced fragmentation of the Golgi. Our findings suggest that the compacted Golgi morphology of mammalian cells is finely tuned by multiple sets of Rab (or Rab-effector complexes) that for the most part function independently.
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