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| P450 | Function | Plant Species |
|---|---|---|
| CYP93B1 : | flavone synthase II (FNS II, F2H), licodione synthase | licorice |
| CYP93B2 | flavone synthase II (FNS II, F2H) | Gerbera |
| CYP93B3 | flavone synthase II (FNS II, F2H) | snapdragon, torenia |
| CYP93B4 | flavone synthase II (FNS II, F2H) | snapdragon, torenia |
| CYP93B6 | flavone synthase II (FNS II, F2H) | Chinese basil |
CYP93B1: (2S)-flavanone 2-hydroxylase (FNS II, F2H), licorice (Glycyrrhiza echinata).
1) Otani K, Takahashi T, Furuya T, Ayabe S (1994) Licodione synthase, a cytochrome P450 monooxygenase catalyzing 2-hydroxylation of 5-deoxyflavanone, in cultured Glycyrrhiza echinata L. cells. Plant Physiol 105: 1427-1432. PubMed
2) Akashi T, Aoki T, Ayabe S (1998) Identification of a cytochrome P450 cDNA encoding (2S)-flavanone 2-hydroxylase of licorice (Glycyrrhiza echinata L.; Fabaceae) which represents licodione synthase and flavone synthase II. FEBS Lett 431: 287-290. PubMed
3) Akashi T, Fukuchi-Mizutani M, Aoki T, Ueyama Y, Yonekura-Sakakibara K, Tanaka Y, Kusumi T, Ayabe S (1999) Molecular cloning and biochemical characterization of a novel cytochrome P450, Flavone Synthase II, that catalyzes direct conversion of flavanones to flavones. Plant Cell Physiol 40: 1182-1186. PubMed
4) Ayabe S-I, Akashi T, Aoki T (2002) Cloning of cDNAs encoding P450s in flavonoid/isoflavonoid pathway from elicited leguminous cell cultures. Methods Enzymol 357: 360-369.
CYP93B2: flavone synthase II, FNS II, (Gerbera).
Martens S, Forkmann G (1999) Cloning and expression of flavone synthase II from Gerbera hybrids. Plant Journal 20: 611-618. PubMed
CYP93B3: flavone synthase II, FNS II (snapdragon, torenia).
1) Akashi T, Fukuchi-Mizutani M, Aoki T, Ueyama Y, Yonekura-Sakakibara K, Tanaka Y, Kusumi T, Ayabe S (1999) Molecular cloning and biochemical characterization of a novel cytochrome P450, flavone synthase II, that catalyzes direct conversion of flavanones to flavones. Plant Cell Physiol 40: 1182-1186. PubMed
2) Ueyama Y, Suzuki K-I, Fukuchi-Mizutani M, Fukui Y, Miyazaki K et al. (2002) Molecular and biochemical characterization of Torenia flavonoid 3'-hydroxylase and flavone synthase II and modification of flower color by modulating the expression of these genes. Plant Science 163: 253-263.
CYP93B4: flavone synthase II, FNS II (snapdragon, torenia).
Akashi T, Fukuchi-Mizutani M, Aoki T, Ueyama Y, Yonekura-Sakakibara K, Tanaka Y, Kusumi T, Ayabe S (1999) Molecular cloning and biochemical characterization of a novel cytochrome P450, flavone synthase II, that catalyzes direct conversion of flavanones to flavones. Plant Cell Physiol 40: 1182-1186. PubMed
CYP93B6: flavone synthase II (FSII), Chinese basil (Perilla frutescens).
Kitada C, Gong Z, Tanaka Y, Yamazaki M, Saito K (2001) Differential expression of two cytochrome P450s involved in the biosynthesis of flavones and anthocyanins in chemo-varietal forms of Perilla frutescens. Plant Cell Physiol 42: 1338-1344. PubMed