NCBI Accession #
NP_568002.1
NCBI GenBank Nucleotide #
NM_119801.4
NCBI Official Full Name
Cytochrome P450 superfamily protein
NCBI Official Symbol
ROT3
NCBI Official Synonym Symbols
AP22.10; AP22_10; CYP90C1; ROTUNDIFOLIA 3
NCBI Protein Information
Cytochrome P450 superfamily protein
NCBI Summary
Encodes a cytochrome P-450 gene that is involved in leaf blade expansion by controlling polar cell expansion in the leaf length direction. Member of the CYP90C CYP450 family. ROT3 was shown to be involved in brassinosteroid biosynthesis, most likely in the conversion step of typhasterol (TY) to castasterone (CS). As 6-deoxo-CS was unable to restore the phenotype of rot3-1, it has been postulated that ROT3 might be specifically involved in the conversion of TY to CS in the C6-oxidation pathway of brassinolide. Recently, CYP90C1 was shown to catalyse the C-23 hydroxylation of several brassinosteroids (the enzyme has a broad specificity for 22-hydroxylated substrates).
UniProt Synonym Gene Names
CYP90C1
UniProt Protein Name
3-epi-6-deoxocathasterone 23-monooxygenase
UniProt Synonym Protein Names
Cytochrome P450 90C1; Protein ROTUNDIFOLIA 3
UniProt Primary Accession #
Q9M066
UniProt Secondary Accession #
O23242; Q058J8; Q0WS16
UniProt Related Accession #
Q9M066
UniProt Comments
C-23 hydroxylase involved in brassinosteroids biosynthesis. Converts directly (22S,24R)-22-hydroxy-5-alpha-ergostan-3-one and 3-epi-6-deoxocathasterone to 3-dehydro-6-deoxoteasterone and 6-deoxotyphasterol. These C-23 hydroxylation shortcuts bypass campestanol, 6-deoxocathasterone, and 6-deoxoteasterone. Functionally redundant with CYP90D1.