- Information
- Symbol: OsMRP5
- MSU: LOC_Os03g04920
- RAPdb: Os03g0142800
- PSP score
- LOC_Os03g04920.1: 0.2989
- PLAAC score
- LOC_Os03g04920.1: 0
- pLDDT score
- 80.45
- Protein Structure from AlphaFold and UniProt
- Publication
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Genbank accession number
- Key message
- Seed-specific silencing of OsMRP5 reduces seed phytic acid and weight in rice.
- The OsMRP5 gene, of which mutations are known to reduce seed PA as well as seed yield and viability, was down-regulated specifically in rice seeds by using an artificial microRNA driven by the rice seed specific promoter Ole18
- Put together, the present study demonstrated that seed specific silencing of OsMRP5 could significantly reduce the PA content and increase Pi levels in seeds; however, it also significantly lowers seed weight in rice
- OsMRP5 is expressed in both vegetative tissues and developing seeds, and the two mutations do not change the level of RNA transcription
- A T-DNA insertion line, 4A-02500, in which OsMRP5 was disrupted, also showed the same high inorganic phosphorus phenotype as Os-lpa-XS110-3 and appeared to be homozygous lethal
- Connection
- LPA1, OsMRP5, Mutations of the multi-drug resistance-associated protein ABC transporter gene 5 result in reduction of phytic acid in rice seeds., In this study, we mapped the XS-lpa2-1 gene to a region on chromosome 3 between microsatellite markers RM14360 and RM1332, where the rice orthologue (OsMRP5) of the maize lpa1 gene is located
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