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Basic Information
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CGSNL Gene Symbol
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BZIP50
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Gene Symbol Synonym
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OsbZIP60, bZIP50, OsbZIP50, OsbZIP74, bZIP74, OsbZIP50-S
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CGSNL Gene Name
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b-ZIP TRANSCRIPTION FACTOR 50
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Gene Name Synonym
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b-ZIP transcription factor 60, b-ZIP transcription factor 50, b-ZIP transcription factor 74
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Protein Name
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b-ZIP TRANSCRIPTION FACTOR 50
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Allele
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bzip74, bzip50
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Chromosome No.
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6
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Explanation
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Q69XV0. a rice orthologue of AtbZIP60. As a response to stress, the ER stress sensor IRE1 transduces signals through the unconventional splicing of OsbZIP50 mRNA, which causes a frameshift producing a nuclear localization signal in the protein designated OsbZIP50-S, which regulates the expression of many ER stress-responsive genes. OsbZIP74 in Liu et al. 2020, Lin et al. 2023. GO:1900101: regulation of endoplasmic reticulum unfolded protein response.
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Trait Class
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Seed - Morphological traits - Endosperm
Seed - Morphological traits - Grain shape
Tolerance and resistance - Disease resistance
Tolerance and resistance - Stress tolerance
Character as QTL - Grain quality
Other
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Expression
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Sequence/Locus
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cDNA Accession No.
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AK107021
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MSU ID
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LOC_Os06g41770.1
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RAP ID
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Os06g0622700
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Links
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Oryzabase Chromosome View
(
IRGSP 1.0
/
Build5
)
RAP-DB
(
IRGSP 1.0
/
Build5
)
Related IDs List (
IRGSP 1.0
/
Build5
)
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INSD Accession List
(Test version)
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-
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Map
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Locate(cM)
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Link map
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Classical linkage map
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References
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Sun Q., Duan E., Jing R., Ren Y., Xu H., Gu C., Lv W., Jiang X., Chen R., Wang Q., Zhang Y., Zhang R., Xu H., Zhang Y., Chi J., Fu Y., Zhu Y., Zhang Y., Zhang B., Teng X., Dong H., Yang X., Zhou L., Tian Y., Liu X., Liu S., Guo X., Lei C., Jiang L., Wang Y., Wan J.
Plant Commun 2025 6(9) 101458
The bZIP transcription factor RISBZ1 balances grain filling and ER stress response in rice grains.
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Lin Y., Zhu Y., Cui Y., Qian H., Yuan Q., Chen R., Lin Y., Chen J., Zhou X., Shi C., He H., Hu T., Gu C., Yu X., Zhu X., Wang Y., Qian Q., Zhang C., Wang F., Shang L.
J Integr Plant Biol 2023
Identification of natural allelic variation in TTL1 controlling thermotolerance and grain size by a rice super pan-genome.
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Meng F., Zhao Q., Zhao X., Yang C., Liu R., Pang J., Zhao W., Wang Q., Liu M., Zhang Z., Kong Z., Liu J.
Cell Rep 2022 39(11) 110941
A rice protein modulates endoplasmic reticulum homeostasis and coordinates with a transcription factor to initiate blast disease resistance.
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Cao R., Zhao S., Jiao G., Duan Y., Ma L., Dong N., Lu F., Zhu M., Shao G., Hu S., Sheng Z., Zhang J., Tang S., Wei X., Hu P.
Plant Commun 2022 3(6) 100463
OPAQUE3, encoding a transmembrane bZIP transcription factor, regulates endosperm storage protein and starch biosynthesis in rice.
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Liang D., Yu J., Song T., Zhang R., Du Y., Yu M., Cao H., Pan X., Qiao J., Liu Y., Qi Z., Liu Y.
Int J Mol Sci 2022 23(19)
Genome-Wide Prediction and Analysis of <i>Oryza</i> Species <i>NRP</i> Genes in Rice Blast Resistance.
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Feng H., Qiu T., Yin C., Zhao X., Xu G., Qi L., Zhang Y., Peng Y., Zhao W.
Int J Mol Sci 2022 23(10)
The Rice Malectin Regulates Plant Cell Death and disease resistance by Participating in Glycoprotein Quality Control.
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Liu X.H., Lyu Y.S., Yang W., Yang Z.T., Lu S.J., Liu J.X.
Plant Biotechnol. J. 2020 18(5) 1317-1329
A membrane-associated NAC transcription factor OsNTL3 is involved in thermotolerance in rice.
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Cui J., Chen B., Wang H., Han Y., Chen X., Zhang W.
Sci Rep 2016 6 31764
Glucosidase II beta-subunit, a novel substrate for caspase-3-like activity in rice, plays as a molecular switch between autophagy and programmed cell death.
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Ohta M., Takaiwa F.
J. Exp. Bot. 2015 66(15) 4585-93
OsHrd3 is necessary for maintaining the quality of endoplasmic reticulum-derived protein bodies in rice endosperm.
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Cheng Q., Zhou Y., Liu Z., Zhang L., Song G., Guo Z., Wang W., Qu X., Zhu Y., Yang D.
Plant Biol (Stuttg) 2014
An alternatively spliced heat shock transcription factor, OsHSFA2dI, functions in the heat stress-induced UNFOLDED PROTEIN RESPONSE in rice.
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Zhang X., Rerksiri W., Liu A., Zhou X., Xiong H., Xiang J., Chen X., Xiong X.
Gene 2013 530(2) 185-92
Transcriptome profile reveals heat response mechanism at molecular and metabolic levels in rice flag leaf.
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Kudo K., Ohta M., Yang L., Wakasa Y., Takahashi S., Takaiwa F.
Plant Mol. Biol. 2013 81(4-5) 461-75
ER stress response induced by the production of human IL-7 in rice endosperm cells.
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Hayashi S., Takahashi H., Wakasa Y., Kawakatsu T., Takaiwa F.
Plant J. 2013 74(2) 248-57
Identification of a cis-element that mediates multiple pathways of the endoplasmic reticulum stress response in rice.
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Zhang L., Jiang D., Pang J., Chen R., Wang X., Yang D.
Plant Mol. Biol. 2013 83(1-2) 153-61
The endoplasmic reticulum stress induced by highly expressed OsrAAT reduces seed size via pre-mature programmed cell death.
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Hayashi S., Wakasa Y., Takahashi H., Kawakatsu T., Takaiwa F.
Plant J. 2012 69 946-956
Signal transduction by IRE1-mediated splicing of bZIP50 and other stress sensors in the endoplasmic reticulum stress response of rice.
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Wakasa Y., Hayashi S., Ozawa K., Takaiwa F.
Sci Rep 2012 2 944
Multiple roles of the ER stress sensor IRE1 demonstrated by gene targeting in rice.
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Yang J., Zhao X., Cheng K., Du H., Ouyang Y., Chen J., Qiu S., Huang J., Jiang Y., Jiang L., Ding J., Wang J., Xu C., Li X., Zhang Q.
Science 2012 337(6100) 1336-40
A killer-protector system regulates both hybrid sterility and segregation distortion in rice.
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Wakasa Y., Hayashi S., Takaiwa F.
Planta 2012 236(5) 1519-27
Expression of OsBiP4 and OsBiP5 is highly correlated with the endoplasmic reticulum stress response in rice.
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Lu S.J., Yang Z.T., Sun L., Sun L., Song Z.T., Liu J.X.
Mol Plant 2012 5(2) 504-14
Conservation of IRE1-Regulated bZIP74 mRNA Unconventional Splicing in Rice (Oryza sativa L.) Involved in ER Stress Responses.
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Hu J. , Zhou J. , Peng X. , Xu H. , Liu C. , Du B. , Yuan H. , Zhu L. , He G.
Plant Physiol. 2011 156(2) 856-72
The bphi008a gene interacts with the ethylene pathway and transcriptionally regulates MAPK genes in the response of rice to brown planthopper feeding.
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Takahashi H., Kawakatsu T., Wakasa Y., Hayashi S., Takaiwa F.
Plant Cell Physiol. 2011 53 144-153
A Rice Transmembrane bZIP Transcription Factor, OsbZIP39, Regulates the Endoplasmic Reticulum Stress Response.
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Nijhawan A,Jain M,Tyagi AK,Khurana JP
Plant Physiol. 2008 146 333-50
Genomic survey and gene expression analysis of the basic leucine zipper transcription factor family in rice.
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DB Reference
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Gramene ID
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-
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Ontologies
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Gene Ontology
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transcription factor activity( GO:0003700 )
nucleus( GO:0005634 )
sequence-specific DNA binding( GO:0043565 )
protein dimerization activity( GO:0046983 )
response to heat( GO:0009408 )
response to unfolded protein( GO:0006986 )
defense response to fungus( GO:0050832 )
response to endoplasmic reticulum stress( GO:0034976 )
DNA binding( GO:0003677 )
endoplasmic reticulum membrane( GO:0005789 )
endoplasmic reticulum unfolded protein response( GO:0030968 )
endoplasmic reticulum( GO:0005783 )
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Trait Ontology
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temperature response trait( TO:0000432 )
heat tolerance( TO:0000259 )
blast disease( TO:0000074 )
chalky endosperm( TO:0000266 )
floury endosperm( TO:0000104 )
grain size( TO:0000397 )
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Plant Ontology
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Related Strains
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Phenotype images
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Last updated
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Nov 19, 2025
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Update info.