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Basic Information
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CGSNL Gene Symbol
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KO5
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Gene Symbol Synonym
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OsKO5, OsKOL5, KOL5, KOS2, OsKOS2, CYP701A9, OsCYP701A9, OsKO1, KO1
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CGSNL Gene Name
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ENT-KAURENE OXIDASE 5
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Gene Name Synonym
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rice ent-kaurene oxidase5, cytochrome P450 701A9
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Protein Name
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ENT-KAURENE OXIDASE 5
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Allele
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kol5
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Chromosome No.
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6
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Explanation
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This gene encodes one of the GA metabolic enzymes, ent-kaurene oxidase (KO). It is located on chromosome 6 at 76cM forming a gene cluster with 5 tandem repeats, OsKOL1 to OsKOL5.
AY660664. OsKO1 in Lee et al. 2020, Song et al. 2020, Jang et al. 2021.
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Trait Class
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Biochemical character
Vegetative organ - Culm
Tolerance and resistance - Disease resistance
Character as QTL - Grain quality
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Expression
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Sequence/Locus
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cDNA Accession No.
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AK071743
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MSU ID
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LOC_Os06g37224.1
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RAP ID
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Os06g0568600
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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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Link to INSD Accession List
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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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Chen Y., Hui S., Li H., Jiao G., Cao R., Zhou L., Wang J., Mawia A.M., Yang L., Wu Y., Zhang Y., Sheng Z., Shao G., Zhao F., Wang L., Lyu Y., Tang S., Hu S., Hu P.
Plant Biotechnol. J. 2025 23(7) 2793-2808
A myb61-SWB9-KOs module regulates grain chalkiness via gibberellin biosynthesis in rice endosperm.
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Jang S., Cho J.Y., Do G.R., Kang Y., Li H.Y., Song J., Kim H.Y., Kim B.G., Hsing Y.I.
Int J Mol Sci 2021 22(15)
Modulation of Rice leaf angle and grain size.by Expressing <i>OsBCL1</i> and <i>OsBCL2</i> under the Control of <i>OsBUL1</i> Promoter.
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Kitaoka N., Zhang J., Oyagbenro R.K., Brown B., Wu Y., Yang B., Li Z., Peters R.J.
Plant Cell 2021 33(2) 290-305
Interdependent evolution of biosynthetic gene clusters for momilactone production in rice.
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Tang L., Xu H., Wang Y., Wang H., Li Z., Liu X., Shu Y., Li G., Liu W., Ying J., Tong X., Yao J., Xiao W., Tang S., Ni S., Zhang J.
Int J Mol Sci 2021 22(22)
OsABF1 Represses Gibberellin Biosynthesis to Regulate plant height and Seed Germination in Rice (<i>Oryza sativa</i> L.).
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Wang Y., Du F., Wang J., Li Y., Zhang Y., Zhao X., Zheng T., Li Z., Xu J., Wang W., Fu B.
Int J Mol Sci 2021 22(17)
Molecular Dissection of the Gene <i>OsGA2ox8</i> Conferring Osmotic Stress Tolerance in Rice.
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Lee J., Moon S., Jang S., Lee S., An G., Jung K.H., Park S.K.
Plants (Basel) 2020 9(4)
<i>OsbHLH073</i> Negatively Regulates Internode Elongation and plant height by Modulating GA Homeostasis in Rice.
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Song W., Hao Q., Cai M., Wang Y., Zhu X., Liu X., Huang Y., Nguyen T., Yang C., Yu J., Wu H., Chen L., Tian Y., Jiang L., Wan J.
Plant Physiol. Biochem. 2020 151 469-476
Rice OsBT1 regulates seed dormancy through the glycometabolism pathway.
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Wang Q., Hillwig M.L., Wu Y., Peters R.J.
Plant Physiol. 2012 158(3) 1418-25
CYP701A8: a rice ent-kaurene oxidase paralog diverted to more specialized diterpenoid metabolism.
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Zhu,S., Gao,F., Cao,X., Chen,M., Ye,G., Wei,C. and Li,Y.
Plant Physiol. 2005 139(4) 1935-1945
The Rice Dwarf Virus P2 Protein Interacts with ent-Kaurene Oxidases in Vivo, Leading to Reduced Biosynthesis of Gibberellins and Rice Dwarf Symptoms.
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Sakamoto, T., K. Miura, H. Itoh, T. Tatsumi, M. Ueguchi-Tanaka, K. Ishiyama, M. Kobayashi, G.K. Agrawal, S. Takeda, K. Abe, A. Miyao, H. Hirochika, H. Kitano, M. Ashikari and M. Matsuoka
Plant Physiol. 2004 134 1642-1653
An overview of gibberellin metabolism enzyme genes and their related mutants in rice.
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Itoh, H., Tatsumi, T., Sakamoto, T., Otomo, K., Toyomasu, T., Kitano, H., Ashikari, M., Ichikawa, S. and Matsuoka, M.
Plant Mol. Biol. 2004 54 533-547
A rice semi-dwarf gene, Tan-Ginbozu (D35), encodes the gibberellin biosynthesis enzyme, ent-kaurene oxidase.
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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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response to gibberellin stimulus( GO:0009739 )
gibberellin biosynthetic process( GO:0009686 )
monooxygenase activity( GO:0004497 )
response to jasmonic acid stimulus( GO:0009753 )
defense response( GO:0006952 )
response to abiotic stimulus( GO:0009628 )
diterpene phytoalexin biosynthetic process( GO:0051502 )
gibberellic acid homeostasis( GO:0010336 )
internode patterning( GO:0080006 )
oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen( GO:0016705 )
ent-kaurene oxidase activity( GO:0010241 )
electron carrier activity( GO:0009055 )
heme binding( GO:0020037 )
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Trait Ontology
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internode length( TO:0000145 )
disease resistance( TO:0000112 )
jasmonic acid sensitivity( TO:0000172 )
gibberellic acid sensitivity( TO:0000166 )
gibberellic acid content( TO:0002675 )
chalky endosperm( TO:0000266 )
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Plant Ontology
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-
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Related Strains
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-
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Phenotype images
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-
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Last updated
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Sep 24, 2025
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Update info.