OsIRO3,OsOsbHLH063

• Symbol: OsIRO3,OsOsbHLH063
• MSU: LOC_Os03g26210
• RAPdb: Os03g0379300

• LOC_Os03g26210.3: 0.6041
• LOC_Os03g26210.1: 0.1083
• LOC_Os03g26210.2: 0.6041

• LOC_Os03g26210.3: 0
• LOC_Os03g26210.1: 0
• LOC_Os03g26210.2: 0

• 69.05

• Identification of a novel iron regulated basic helix-loop-helix protein involved in Fe homeostasis in Oryza sativa, 2010, BMC Plant Biol.

Genbank accession number

• RESULTS: Transcript abundance of one nuclear located basic helix-loop-helix family transcription factor, OsIRO3, is up-regulated from 25- to 90-fold under Fe deficiency in both root and shoot respectively
• CONCLUSION: A novel Fe regulated bHLH transcription factor (OsIRO3) that plays an important role for Fe homeostasis in rice was identified
• Furthermore, the Fe concentration in shoots of transgenic rice plants over-expressing OsIRO3 was less than that in wild-type plants

• OsIRO3~OsOsbHLH063, OsPRI1, POSITIVE REGULATOR OF IRON HOMEOSTASIS 1 OsPRI1 positively regulates iron homeostasis in rice., Yeast one-hybrid and electrophoretic mobility shift assay results suggested that OsPRI1 binds to the OsIRO2 and OsIRO3 promoters
• OsIRO3~OsOsbHLH063, OsPRI1, POSITIVE REGULATOR OF IRON HOMEOSTASIS 1 OsPRI1 positively regulates iron homeostasis in rice., Collectively, these results imply that OsPRI1, which is ubiquitinated by OsHRZ1, mediates rice responses to Fe-deficiency by positively regulating OsIRO2 and OsIRO3 expression as part of the OsHRZ1-OsPRI1-OsIRO2/3 signal transduction cascade