Entry
Name
steroid 11beta-monooxygenase;
steroid 11beta-hydroxylase;
steroid 11beta/18-hydroxylase
Class
Oxidoreductases;
Acting on paired donors, with incorporation or reduction of molecular oxygen;
With reduced iron-sulfur protein as one donor, and incorporation of one atom of oxygen into the other donor
BRITE hierarchy
Sysname
steroid,reduced-adrenodoxin:oxygen oxidoreductase (11beta-hydroxylating)
Reaction(IUBMB)
a steroid + 2 reduced adrenodoxin + O2 + 2 H+ = an 11beta-hydroxysteroid + 2 oxidized adrenodoxin + H2O [RN:
R02726 ]
Reaction(KEGG)
Substrate
Product
Comment
A heme-thiolate protein (P-450). Also hydroxylates steroids at the 18-position, and converts 18-hydroxycorticosterone into aldosterone.
History
EC 1.14.15.4 created 1961 as EC 1.99.1.7, transferred 1965 to EC 1.14.1.6, transferred 1972 to EC 1.14.15.4, modified 1989, modified 2014
Pathway
ec00140 Steroid hormone biosynthesis
Orthology
K00497 steroid 11beta-monooxygenase
K07433 steroid 11beta-monooxygenase / corticosterone 18-monooxygenase
Genes
HSA : 1584(CYP11B1) 1585(CYP11B2)
PTR : 464437(CYP11B1) 745937(CYP11B2)
PPS : 100971238(CYP11B2) 100971586(CYP11B1)
PPYG : 129042626 129042640
SSYN : 129486882 129486883
MCC : 695793(CYP11B1) 695914(CYP11B2)
MCF : 102136659(CYP11B1) 102137301(CYP11B2)
MTHB : 126961020 126961026 126961618
MNI : 105483796 105488428 105488429
CSAB : 103237546(CYP11B1) 103237547(CYP11B2)
CATY : 105581188 105581294
PANU : 101002490 101002842 116276421
MLEU : 105536287 105536288
TFN : 117078861 117079172 117079174
CANG : 105509012 105509013
CJC : 100415304(CYP11B2) 100415667(CYP11B1)
CIMI : 108291253(CYP11B1) 108291254(CYP11B2)
ANAN : 105728086(CYP11B2) 105728099(CYP11B1)
CSYR : 103276447 103276450
MMUR : 105867373 105867374
LCAT : 123644516 123644520
PCOQ : 105813307 105813360
OGA : 100948075 100948396 100958146
MMU : 110115(Cyp11b1) 13072(Cyp11b2)
MCAL : 110310257 110310258
MPAH : 110334511 110335023
RNO : 120093683(Cyp11b2l1) 24294(Cyp11b2) 353498(Cyp11b3) 500892(Cyp11b1)
MCOC : 116073894 116082436
MAUA : 101823339 101823606
PROB : 127225603 127225649 127225650
PLEU : 114684742 114684743
MORG : 121461414 121461416
MFOT : 126503589 126503590
AAMP : 119823440 119823447
CPOC : 100379213(Cyp11b2) 100727186 111755182
CCAN : 109681807 109681816
DORD : 105992320 106002066
PLOP : 125360501 125361022
NCAR : 124991075 124991346
MMMA : 107142805 107143071
OCU : 100328543(CYP11B2) 100342863
GVR : 103599088 103604864 103604866
LRUF : 124507499 124507515
BTA : 282422(CYP11B1) 787628
BIU : 109568177 109568372 109568377
BBUB : 112577757 112579063
OAS : 101102377 767576(CYP11B1)
BTAX : 128059464 128059476
AOCE : 111567446 111575932
OMY : 100135891(cyp11b) 110534298
CCLU : 121543144 123481512
ARUT : 117395226 117969833
» show all
Taxonomy
Reference
Authors
GRANT JK, BROWNIE AC.
Title
The role of fumarate and TPN in steroid enzymic 11beta-hydroxylation.
Journal
Reference
Authors
HAYANO M, DORFMAN RI.
Title
On the mechanism of the C11 beta-hydroxylation of steroids.
Journal
J Biol Chem 211:227-35 (1954)
Reference
Authors
TOMKINS GM, MICHAEL PJ, CURRAN JF.
Title
Studies on the nature of steroid 11-beta hydroxylation.
Journal
Reference
Authors
Yanagibashi K, Haniu M, Shively JE, Shen WH, Hall P
Title
The synthesis of aldosterone by the adrenal cortex. Two zones (fasciculata and glomerulosa) possess one enzyme for 11 beta-, 18-hydroxylation, and aldehyde synthesis.
Journal
J Biol Chem 261:3556-62 (1986)
Reference
Authors
Zuidweg MH.
Title
Hydroxylation of Reichstein's compound S with cell-free preparations from Curvularia lunata.
Journal
Other DBs
ExPASy - ENZYME nomenclature database: 1.14.15.4