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expand all sections collapse all sections Oryza sativa gene "GH2" (GR:0060366)
Species Oryza sativa (Rice) [ GR_tax:013681 ]
Accession GR:0060366
Gene Symbol GH2
Gene Name GOLD HULL AND INTERNODE 2 
Synonyms (9)
E.C. Numbers (1) 1.1.1.195
Pathway Reactions (4)
Chromosome No. 2
Gene Type CDS (Protein coding)
Has Phenotype yes
Description The gene encodes a cinnamyl alcohol dehydrogenase (CAD) enzyme (EC:1.1.1.195). It is an ortholog of the CAD gene present at the bm1 (brown midrib 1) locus of maize (GR:0200056). The gene is expressed in the vascular tissue of panicles, hull, leaf midribs, leaf sheath, internodes and young roots. It is a key enzyme that regulates lignin content and plays a role in the lignin biosynthesis. In root tissue, it is expressed in the cortical parenchyma adjacent to the exodermis and in vascular tissue. The associated phenotype shows, brownish green lemma and palea at panicle exsertion and deep golden yellow hull at maturity. Golden internode has more intensified color. (Yellow pigment accumulates in cell wall). Reduction in lignin content. Simlar to gh1.
Curator Comment The GH2 protein has multiple enzymatic activities of cinnamyl alcohol dehydrogenase (CAD) and sinapyl alcohol dehydrogenase (SAD). CAD is the primary activity.
toggle section Alleles (2)
toggle section Germplasm (2)
toggle section Sequences (6)
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toggle section Associated Ontologies (37)
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toggle section SNPs (37)