ArticleThe Plant cell2016
GOLGI TRANSPORT 1B Regulates Protein Export from the Endoplasmic Reticulum in Rice Endosperm Cells.
Article in The Plant cell, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.
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Who cites it
45 citing papers in PubMed, 98 citations in OpenAlex.
- The OsMYB4 transcription factor enables coordinated improvement of grain yield and quality in rice.Nature communications · 2026Article
- OsVPS34-generated PI3P recruits GPA5/Rab5a to regulate post-Golgi glutelin trafficking in rice endosperm.Plant physiology · 2026Article
- D-amino acid aminotransferase1 regulates grain chalkiness in rice by modulating endoplasmic reticulum stress response.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Interaction with COPII Member SAR1 Is Critical for the Delivery ofPlants (Basel, Switzerland) · 2026Article
- The OsMADS18-OsbZIP60 module plays a critical role in influencing grain chalkiness in rice.Science China. Life sciences · 2026Article
- Natural variation in OsTPS8 confers differential regulation of chalkiness and seed vigor in indica and japonica rice.Nature genetics · 2026Article
- The bZIP transcription factor RISBZ1 balances grain filling and ER stress response in rice grains.Plant communications · 2025Article
- OsSPL14 and OsNF-YB9/YC8-12 subunits cooperate to enhance grain appearance quality by promoting Waxy and PDIL1-1 expression in rice.Plant communications · 2025Article
- The MON1-CCZ1 complex plays dual roles in autophagic degradation and vacuolar protein transport in rice.Journal of integrative plant biology · 2025Article
- SUBSTANDARD STARCH GRAIN7 regulates starch grain size and endosperm development in rice.Plant biotechnology journal · 2024Article
- Phenotypic Analysis and Gene Cloning of Rice Floury Endosperm MutantPlants (Basel, Switzerland) · 2024Article
- Characterization of the small Arabidopsis thaliana GTPase and ADP-ribosylation factor-like 2 protein TITAN 5.Journal of cell science · 2024Article
- Involvement of a rice mutation in storage protein biogenesis in endosperm and its genomic location.Planta · 2024Article
- Characterization of the smallbioRxiv : the preprint server for biology · 2024Article
- OsSHMT4 Is Required for Synthesis of Rice Storage Protein and Storage Organelle Formation in Endosperm Cells.Plants (Basel, Switzerland) · 2023Article
- A CYP78As-small grain4-coat protein complex Ⅱ pathway promotes grain size in rice.The Plant cell · 2023Article
- Starch Properties and Morphology of Eight Floury Endosperm Mutants in Rice.Plants (Basel, Switzerland) · 2023Article
- Identification of genetic loci associated with five agronomic traits in alfalfa using multi-environment trials.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2023Article
- A deleterious Sar1c variant in rice inhibits export of seed storage proteins from the endoplasmic reticulum.Plant molecular biology · 2023Article
- The genetic basis of grain protein content in rice by genome-wide association analysis.Molecular breeding : new strategies in plant improvement · 2023Article
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Authors and funding
17 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Coat protein complex II (COPII) mediates the first step of anterograde transport of newly synthesized proteins from the endoplasmic reticulum (ER) to other endomembrane compartments in eukaryotes. A group of evolutionarily conserved proteins (Sar1, Sec23, Sec24, Sec13, and Sec31) constitutes the basic COPII coat machinery; however, the details of how the COPII coat assembly is regulated remain unclear. Here, we report a protein transport mutant of rice (Oryza sativa), named glutelin precursor accumulation4 (gpa4), which accumulates 57-kD glutelin precursors and forms two types of ER-derived abnormal structures. GPA4 encodes the evolutionarily conserved membrane protein GOT1B (also known as GLUP2), homologous to the Saccharomyces cerevisiae GOT1p. The rice GOT1B protein colocalizes with Arabidopsis thaliana Sar1b at Golgi-associated ER exit sites (ERESs) when they are coexpressed in Nicotiana benthamiana Moreover, GOT1B physically interacts with rice Sec23, and both proteins are present in the same complex(es) with rice Sar1b. The distribution of rice Sar1 in the endomembrane system, its association with rice Sec23c, and the ERES organization pattern are significantly altered in the gpa4 mutant. Taken together, our results suggest that GOT1B plays an important role in mediating COPII vesicle formation at ERESs, thus facilitating anterograde transport of secretory proteins in plant cells.
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