Os03g0733800

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The rice Os03g0733800 was reported as Ero1 in 2005 [1] by researchers from the USA.

Annotated Information

Gene Symbol

  • Os03g0733800<=>Ero1


Function

  • The formation of native disulfide bonds in proglutelins depends on an electron transfer pathway involving OsEro1 and OsPDIL.


Mutation

  • The RNAi knockdown of OsERO1 inhibited the formation of native disulfide bonds in the glutelin precursors (proglutelins) and promoted aggregation of the proglutelins through nonnative intermolecular disulfide bonds in the rER. Inhibition of the formation of native disulfide bonds was also observed in the seeds of the esp2 mutant, which lacks protein disulfide isomerase-like(PDIL)1;1, but shows enhanced OsEro1 expression. The researchers detected the generation of H2O2 in the rER of the WT subaleurone cells, whereas the rER-derived H2O2 levels decreased markedly in EM49 homozygous mutant seeds, which have fewer sulfhydryl groups than the WT seeds.


Labs working on this gene

  • Division of Plant Sciences, National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan;
  • Institute of Genetic Resources, Faculty of Agriculture, Kyushu University, Hakozaki, Fukuoka 812-8581, Japan


References

  1. ER membrane-localized oxidoreductase Ero1 is required for disulfide bond formation in the rice endosperm


Structured Information