brassinosteroid biosynthesis II

Ohnishi T, Szatmari AM, Watanabe B, Fujita S, Bancos S, Koncz C, Lafos M, Shibata K, Yokota T, Sakata K, Szekeres M, Mizutani M. C-23 hydroxylation by Arabidopsis CYP90C1 and CYP90D1 reveals a novel shortcut in brassinosteroid biosynthesis. Plant Cell. 2006 Nov;18(11):3275–88. PMID: 17138693; PMCID: PMC1693957.; Fujioka S, Takatsuto S, Yoshida S. An early C-22 oxidation branch in the brassinosteroid biosynthetic pathway. Plant Physiol. 2002 Oct;130(2):930–9. PMID: 12376657; PMCID: PMC166619.; Ephritikhine G, Pagant S, Fujioka S, Takatsuto S, Lapous D, Caboche M, Kendrick RE, Barbier-Brygoo H. The sax1 mutation defines a new locus involved in the brassinosteroid biosynthesis pathway in Arabidopsis thaliana. Plant J. 1999 May;18(3):315–20. doi: 10.1046/j.1365-313x.1999.00455.x. PMID: 10377996.

Metabolites

5alpha-Campestan-3-one

Formula: C28H48O (400.37049579999996)

CAS ID: 27212-88-0

6-Deoxocathasterone

Formula: C28H50O2 (418.38106)

CAS ID: 198416-73-8

6-Deoxoteasterone

Formula: C28H50O3 (434.37597500000004)

CAS ID: 188397-19-5

6-Deoxotyphasterol

Formula: C28H50O3 (434.37597500000004)

CAS ID: 164034-47-3

Campest-4-en-3-one

Formula: C28H46O (398.3548466)

CAS ID: 22260-46-4

Campestanol

Formula: C28H50O (402.386145)

CAS ID: 474-60-2

Campesterol

Formula: C28H48O (400.37049579999996)

CAS ID: 474-62-4

H+

Formula: H (1.0078246)

CAS ID: 12408-02-5

H2O

Formula: H2O (18.0105642)

CAS ID: 7732-18-5

Oxygen

Formula: O2 (31.98983)

CAS ID: 7782-44-7

NADPH(4-)

Formula: C21H26N7O17P3 (741.0598016)

CAS ID: 53-57-6

NAD(1-)

Formula: C21H26N7O14P2 (662.1012936000001)

CAS ID: 53-84-9

NADP(3-)

Formula: C21H25N7O17P3 (740.051977)

CAS ID: 53-59-8



Enzyme

EC Number name full name note
1.14.14.-
1.14.14.147 22alpha-hydroxysteroid 23-monooxygenase 22alpha-hydroxysteroid,[reduced NADPH-hemoprotein reductase]:oxygen oxidoreductase (C-23-hydroxylating)
1.14.14.178 steroid 22S-hydroxylase steroid,NADPH-hemoprotein reductase:oxygen 22S-oxidoreductase (hydroxylating)
1.14.19.79 3beta,22alpha-dihydroxysteroid 3-dehydrogenase 3beta,22alpha-dihydroxysteroid,[reduced NADPH-hemoprotein reductase]:oxygen 3-oxidoreductase
1.3.1.22 3-oxo-5alpha-steroid 4-dehydrogenase (NADP+) 3-oxo-5alpha-steroid:NADP+ DELTA4-oxidoreductase


Proteins

Protein ID name full name