Entry
Name
squalene monooxygenase;
squalene epoxidase;
squalene-2,3-epoxide cyclase;
squalene 2,3-oxidocyclase;
squalene hydroxylase;
squalene oxydocyclase;
squalene-2,3-epoxidase
Class
Oxidoreductases;
Acting on paired donors, with incorporation or reduction of molecular oxygen;
With reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen into the other donor
BRITE hierarchy
Sysname
squalene,NADPH---hemoprotein:oxygen oxidoreductase (2,3-epoxidizing)
Reaction(IUBMB)
squalene + [reduced NADPH---hemoprotein reductase] + O2 = (3S)-2,3-epoxy-2,3-dihydrosqualene + [oxidized NADPH---hemoprotein reductase] + H2O [RN:
R02874 ]
Reaction(KEGG)
Substrate
squalene [CPD:
C00751 ];
[reduced NADPH---hemoprotein reductase] [CPD:
C03024 ];
O2 [CPD:
C00007 ]
Product
(3S)-2,3-epoxy-2,3-dihydrosqualene [CPD:
C01054 ];
[oxidized NADPH---hemoprotein reductase] [CPD:
C03161 ];
H2O [CPD:
C00001 ]
Comment
A flavoprotein (FAD). This enzyme, together with EC
5.4.99.7 , lanosterol synthase, was formerly known as squalene oxidocyclase. The electron donor is EC
1.6.2.4 , NADPH---hemoprotein reductase [5,7].
History
EC 1.14.14.17 created 1961 as EC 1.99.1.13, transferred 1965 to EC 1.14.1.3, part transferred 1972 to EC 1.14.99.7, transferred 2011 to EC 1.14.13.132, transferred 2015 to EC 1.14.14.17
Pathway
ec00909 Sesquiterpenoid and triterpenoid biosynthesis
ec01110 Biosynthesis of secondary metabolites
Orthology
Genes
LCAT : 123626491 123645008(SQLE)
ACAR : 104518746(SQLE) 104531213
XLA : 108695454(sqle.S) 108719421(sqle.L)
DRE : 565329(sqleb) 799528(sqlea)
SRX : 107714342 107719155(sqle)
SANH : 107666801 107686341
CCAR : 109055982 109056009
CAUA : 113059233 113115850
CGIB : 127974439 128030407
PTET : 122323326(sqleb) 122360855 122360958(sqlea)
LROH : 127178878(sqlea) 127181547(sqleb)
OMC : 131521851(sqlea) 131525154(sqleb)
RKG : 130100686(sqlea) 130102375(sqleb)
MAMB : 125243770(sqlea) 125275704(sqleb)
CIDE : 127497628 127500651
CHAR : 105896381(sqlea) 105909038
SSEN : 122772048 122774583(sqlea)
SASA : 106579093 106605546
STRU : 115177539 115181075
SALP : 111958774 112076800
LCM : 102345671 102353148(SQLE) 102363496 102363771 102364039 102364287
SPU : 756574 757019 763532
LPIC : 129279885 129280359 129280485
ATH : AT1G58440(XF1) AT2G22830(SQE2) AT4G37760(SQE3) AT5G24140(SQP2) AT5G24150(SQP1) AT5G24160(SQE6)
ALY : 9305037 9308163 9310239 9310240 9310241 9316531 9324278
CRB : 17879593 17881486 17882298 17883036 17889030 17896403
CSAT : 104702819 104706714 104706715 104706717 104706718 104716345 104720986 104729388 104736426 104736427 104736428 104750186 104751922 104770792 104770795 104772519 104787229
EUS : EUTSA_v10000099mg EUTSA_v10004005mg EUTSA_v10005661mg EUTSA_v10023406mg
BRP : 103838611 103842601 103854873 103854874 103854876 103857940 103863546 103864397 103865842 103874288 103874805
BNA : 106348279 106348280 106366016 106366599 106380094 106380095 106380096 106392124 106392394 106404411 106404424 106415877 106426862 106428446 106432517 106445755 106446452 111211195 125574895 125581325
BOE : 106303240 106307047 106314195 106318641 106321215 106323003 106325308 106339788 106342659
RSZ : 108811538 108818016 108823405 108825489 108837227 108849546 108852195 108855833 130494774 130500427 130505819
THJ : 104798890 104798908 104798909 104801658 104807642 104822879 104823679 104823760
CPAP : 110807845 110809071
CIT : 102610049 102614721 102615022 102616721 102622201 102624867 127899210
CIC : CICLE_v10000839mg CICLE_v10010276mg CICLE_v10010419mg CICLE_v10010705mg CICLE_v10010782mg CICLE_v10025367mg CICLE_v10029886mg CICLE_v10029969mg
PVY : 116106813 116109253 116109258 116109277 116109282 116122734 116122735 116122737 116131545 116133721
MINC : 123202343 123203376 123221443 123225816 123226912 123228678
TCC : 108660985 18591923 18607297 18607298 18607299 18611338 18611827 18611834
GRA : 105769380 105772828 105778884 105784925 105787701 105795485
GHI : 107898505 107898506 107898507 107898509 107898510 107898512 107905167 107908577 107916766 107930592 107934884 107934890 107934901 107934916 107934957 107935261 107938317 107938857 107950526 107957887
GAB : 108450247 108457979 108458975 108459422 108459602 108460811 108460812 108469738 108474966 108480717 108486331
HSYR : 120121530 120123211 120130132 120145844 120160868 120183196 120183198 120197691 120197693 120198000 120199834 120200008 120200015 120207608 120212152
DZI : 111279674 111281465 111282914 111292612 111298163 111298772 111300707 111308631 111312522 111314901
EGR : 104418420 104419813 104423240 104447805 104449232
GMX : 100795027 100795522 100796946 100800329 100804406 100808856 100810547 100820031
GSJ : 114374663 114385447 114385686 114393911 114397505 114414794 114419444 114421346
PVU : PHAVU_001G031600g PHAVU_002G216900g PHAVU_006G029400g PHAVU_006G197900g PHAVU_009G074500g
VRA : 106753043 106765138 106765593 106766844 106774500
VAR : 108331915 108338681 108342749 108342876 108344729
VUN : 114164844 114175615 114188185 114188948 114194766
VUM : 124822950 124831100 124836056 124844943 124848568
CCAJ : 109791859 109796770 109808246 109811675 109811686
APRC : 113847564 113848935 113857491 113858000 113864681
MTR : 11415396 25482032 25490000 25496080 25496089
TPRA : 123894256 123909109 123917289 123918094 123918096
CAM : 101491995 101493207 101496784 101508894
PSAT : 127083635 127087972 127091218 127105283 127136761
VVO : 131596439 131596453 131598094 131607573 131660801
LJA : Lj0g3v0267429.1(Lj0g3v0267429.1) Lj0g3v0267429.2(Lj0g3v0267429.2) Lj0g3v0267429.3(Lj0g3v0267429.3) Lj0g3v0292939.1(Lj0g3v0292939.1) Lj0g3v0298799.2(Lj0g3v0298799.2) Lj1g3v1779010.1(Lj1g3v1779010.1) Lj1g3v1779010.2(Lj1g3v1779010.2) Lj4g3v0412640.1(Lj4g3v0412640.1) Lj5g3v0347610.1(Lj5g3v0347610.1) Lj6g3v2171780.1(Lj6g3v2171780.1) Lj6g3v2171780.2(Lj6g3v2171780.2) Lj6g3v2171780.3(Lj6g3v2171780.3)
ADU : 107468743 107480542 107482392 107495824
AIP : 107605573 107624122 107626262 107638248
AHF : 112697714 112714750 112728665 112740944 112756004 112785023 112791341 112795667
LANG : 109332966 109337353 109345643 109358525
PCIN : 129286320 129294931 129294938 129298552 129299396 129300227 129304809 129304810 129311524
QSA : O6P43_012478 O6P43_015949 O6P43_019048 O6P43_024512 O6P43_031707 O6P43_031709 O6P43_031742
FVE : 101296607 101297207 101301827 101311715 101312297 101312586 101313166 101313461
RCN : 112169211 112172133 112172174 112172593 112173431 112174075 112174507 112175399 112183737 112192799 112192807 112197445 112199387 112199392 112200311 112200467
PPER : 18766762 18767485 18768153 18775060 18793889
PMUM : 103320605 103334961 103334962 103336172
PAVI : 110745624 110747303 110757217 110757254
PDUL : 117615124 117631045 117636805 117637083
MDM : 103404994 103409320 103420059 103420510 103420543 103428431 103431165 103436286 103436299 103438574 103438709 103441409 103443090 103445174 103455855
MSYL : 126586692 126601280 126603963 126611228 126613713 126623288 126623289 126623290 126623291 126623292 126627999 126628000 126628006 126630583 126632198
PXB : 103931412 103931590 103946237 103946238 103951565 103952120 103952121 103952123 103952682 103967038 103967039 103967055 103967056 103967075
ZJU : 107420604 107425040 107427421 107427466 107427482 112492770
MNT : 112094087 112095292 21385790 21396175
CSAV : 115704166 115712817
CSV : 101204949 101210582 101213038
CMO : 103487810 103493632 103495674
BHJ : 120076479 120077762 120087280
MCHA : 111004801 111010224 111017664 111025080
CMAX : 111471032 111481205 111491959 111496410
CMOS : 111442598 111446533 111454180 111454931 111462746
CPEP : 111788153 111797580 111805616 111811375
RCU : 8265245 8267674 8268892 8272164 8281344
JCU : 105630804(SQE) 105634515 105634535 105634536 105634540 105634542 105634543 105639884
HBR : 110633570 110635155 110635156 110635160 110635163 110642235 110643574 110647259 110652051 110661905 110661906 110665457 110666477 110669811
MESC : 110606759 110615992 110618809 110624242 110624578 110625166 110627423 110628978 122724859 122724879 122724886 122724887 122724888
POP : 18096264 18099572 18105959 18108148 7465918 7497730
PEU : 105107839 105114089 105114092 105117255 105117259 105130487
PALZ : 118028376 118035575 118035773 118040992 118040996 118045758 118050555
JRE : 108983035 108987866 108989032 109001142 109003433 109013467 109022319 118346317
CILL : 122274729 122274730 122274732 122308970 122314750 122315530 122317948 122318877
CAVE : 132170410 132170875 132172209 132189727
QSU : 111985237 111989595 111989596 111990232
QLO : 115960408 115968696 115994670 115994671
TWL : 119982210 119983278 119983769 119986340 120009540 120011244
VVI : 100254037 100260031 100265235 100854014
VRI : 117907890 117911199 117911200 117917303
SLY : 101250012 101252376(bc2.1) 112940012 112940619
SPEN : 107011971 107011974 107017670
SSTN : 125847696 125854349
SDUL : 129873969 129902522
CANN : 107840150 107851009 107858627 107867273
NTA : 107761131 107771747 107786596 107821041 107828762 107831617
NSY : 104211864 104224029 104232898
NTO : 104103362 104113280 104115212
INI : 109161287 109170294 109171408 109177866
ITR : 115999778 116022254 116028770 116029673
SIND : 105159079 105162196 105169793 105172646
OEU : 111365439 111365440 111376794 111380881 111388896 111390117 111401374 111410179 111410519
SSPL : 121742421 121743295 121761048 121762523 121762922 121765536 121766152 121810949
SMIL : 131001055 131001820 131017851
SHIS : 125200755 125202166 125214423 125217814
APAN : 127246795 127252480 127252482 127254999 127260551 127262341 127263599 127263830 127263906
HAN : 110883742 110885327 110903826 110912718 110936879 110940251
ECAD : 122586576 122590852 122595218 122602792
LSV : 111879628 111900225 111911464 111913279
CCAV : 112506522 112506592 112514431 112516273 112516564 112519150
DCR : 108196765 108199283 108202809 108214582 108219323
CSIN : 114259457 114284236 114298578 114298887 114300785 114323318
RVL : 131328017 131330212 131331436 131335659
AEW : 130758874 130769010 130776567 130780568
CQI : 110682470 110685768 110719994 110732064
ATRI : 130798108 130807824
PSOM : 113283435 113286643 113288492 113356619
DOSA : Os03t0231700-01(Os03g0231700) Os03t0231800-02(Os03g0231800)
TAES : 123085101 123092891 123098170
PVIR : 120646775 120689530
MUS : 103978791 103993815 103993817 103994329 103994331 103999437
ZOF : 121972198 121977218 121983819 122036991 122051227 122051228 122053576 122055857
PEQ : 110023856 110023857 110039210
AOF : 109833188 109834286 109844344
MSIN : 131218840 131228674
NCOL : 116252420 116265744
SMO : SELMODRAFT_150266 SELMODRAFT_176270
MPP : MICPUCDRAFT_49604(JGI:MicpuC2_49604)
NCS : NCAS_0A06930(NCAS0A06930)
NDI : NDAI_0D01990(NDAI0D01990)
TPF : TPHA_0E03160(TPHA0E03160)
TBL : TBLA_0C05980(TBLA0C05980) TBLA_0H02130(TBLA0H02130)
TDL : TDEL_0E04440(TDEL0E04440)
KAF : KAFR_0D01720(KAFR0D01720)
KNG : KNAG_0H02660(KNAG0H02660)
SPAA : SPAPADRAFT_62808(ERG1)
CAL : CAALFM_C108590CA(ERG1)
NTE : NEUTE1DRAFT116406(NEUTE1DRAFT_116406)
TTT : THITE_165536 THITE_2115532
CTHR : CTHT_0018980 CTHT_0032780
BFU : BCIN_01g00360(Bcerg1)
PSCO : LY89DRAFT_598274 LY89DRAFT_703032 LY89DRAFT_720744
ZTR : MYCGRDRAFT_108597(ERG1)
CCAC : CcaHIS019_0406150(ERG1)
CCI : CC1G_03119 CC1G_03987
ABP : AGABI1DRAFT69774(AGABI1DRAFT_69774)
ABV : AGABI2DRAFT205454(AGABI2DRAFT_205454)
SCM : SCHCO_02514140(SCHCODRAFT_02514140) SCHCO_02645878(SCHCODRAFT_02645878)
NGR : NAEGRDRAFT_62881 NAEGRDRAFT_78243
» show all
Taxonomy
Reference
Authors
Cory EJ, Russey WE, Ortiz de Montellano PR.
Title
2,3-oxidosqualene, an intermediate in the biological synthesis of sterols from squalene.
Journal
Reference
Authors
TCHEN TT, BLOCH K.
Title
On the conversion of squalene to lanosterol in vitro.
Journal
J Biol Chem 226:921-30 (1957)
Reference
Authors
Van Tamelen EE, Willett JD, Clayton RB, Lord KE.
Title
Enzymic conversion of squalene 2,3-oxide to lanosterol and cholesterol.
Journal
Reference
Authors
Yamamoto S, Bloch K.
Title
Studies on squalene epoxidase of rat liver.
Journal
J Biol Chem 245:1670-4 (1970)
Reference
Authors
Ono T, Bloch K
Title
Solubilization and partial characterization of rat liver squalene epoxidase.
Journal
J Biol Chem 250:1571-9 (1975)
Reference
Authors
Satoh T, Horie M, Watanabe H, Tsuchiya Y, Kamei T
Title
Enzymatic properties of squalene epoxidase from Saccharomyces cerevisiae.
Journal
Reference
Authors
Chugh A, Ray A, Gupta JB
Title
Squalene epoxidase as hypocholesterolemic drug target revisited.
Journal
Reference
Authors
He F, Zhu Y, He M, Zhang Y
Title
Molecular cloning and characterization of the gene encoding squalene epoxidase in Panax notoginseng.
Journal
Sequence
Other DBs