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Subunit E isoform 1 of vacuolar H+-ATPase OsVHA enables post-Golgi trafficking of rice seed storage proteins.

Plant physiology - 4 Dec 2021

Zhu Jianping, Ren Yulong, Zhang Yuanyan, Yang Jie, Duan Erchao, Wang Yunlong, Liu Feng, Wu Mingming, Pan Tian, Wang Yongfei, Hu Tingting, Hao Yuanyuan, Teng Xuan, Zhu Xiaopin, Lei Jie, Jing Ruonan, Yu Yanfang, Sun Yinglun, Bao Xiuhao, Bao Yiqun, Wang Yihua, Wan Jianmin

Abstract excerpt

Dense vesicles (DVs) are Golgi-derived plant-specific carriers that mediate post-Golgi transport of seed storage proteins in angiosperms. How this process is regulated remains elusive. Here, we report a rice (Oryza sativa) mutant, named glutelin precursor accumulation8 (gpa8) that abnormally accumulates 57-kDa proglutelins in the mature endosperm. Cytological analyses of the gpa8 mutant revealed that...

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Crops, Agricultural
Glutens
Oryza
Protein Isoforms
Protein Transport

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Vesicular Transport Proteins

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PMID: 33624820
DOI: 10.1093/plphys/kiab099
PMCID: PMC8644829

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Subunit E isoform 1 of vacuolar H+-ATPase OsVHA enables post-Golgi trafficking of rice seed storage proteins.PMID 33624820Read ↗

GLUTELIN PRECURSOR ACCUMULATION3 encodes a regulator of post-Golgi vesicular traffic essential for vacuolar protein sorting in rice endosperm.Semantic proximity Read ↗

OsVPS34-generated PI3P recruits GPA5/Rab5a to regulate post-Golgi glutelin trafficking in rice endosperm.Semantic proximity Read ↗

OsRab5a regulates endomembrane organization and storage protein trafficking in rice endosperm cells.Semantic proximity Read ↗

GPA5 Encodes a Rab5a Effector Required for Post-Golgi Trafficking of Rice Storage Proteins.Semantic proximity Read ↗

OsOSCA2.4 regulates post-Golgi trafficking of storage proteins by modulating Ca2+ homeostasis in rice endosperm.Semantic proximity Read ↗

The Arabidopsis V-ATPase is localized to the TGN/EE via a seed plant-specific motif.Semantic proximity Read ↗

The small GTPase Rab5a is essential for intracellular transport of proglutelin from the Golgi apparatus to the protein storage vacuole and endosomal membrane organization in developing rice endosperm.Semantic proximity Read ↗

CONTINUOUS VASCULAR RING (COV1) is a trans-Golgi network-localized membrane protein required for Golgi morphology and vacuolar protein sorting.Semantic proximity Read ↗

Arabidopsis vacuolar H-ATPase subunit E isoform 1 is required for Golgi organization and vacuole function in embryogenesis.Semantic proximity Read ↗

OsRab11 and OsGAP1 are essential for the vesicle trafficking of the vacuolar H(+)-ATPase OsVHA-a1 under high salinity conditions.Semantic proximity Read ↗

Functional diversification of Sec13 isoforms for storage protein trafficking in rice endosperm cells.Semantic proximity Read ↗

Involvement of a rice mutation in storage protein biogenesis in endosperm and its genomic location.Semantic proximity Read ↗

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