KEGG   ORTHOLOGY: K01822Help
Entry
K01822                      KO                                     

Name
E5.3.3.1
Definition
steroid Delta-isomerase [EC:5.3.3.1]
Pathway
Steroid hormone biosynthesis
Steroid degradation
Module
M00107  
Steroid hormone biosynthesis, cholesterol => prognenolone => progesterone
M00110  
C19/C18-Steroid hormone biosynthesis, pregnenolone => androstenedione => estrone
Brite
KEGG Orthology (KO) [BR:ko00001]
 Metabolism
  Lipid metabolism
   00140 Steroid hormone biosynthesis
    K01822  E5.3.3.1; steroid Delta-isomerase
  Xenobiotics biodegradation and metabolism
   00984 Steroid degradation
    K01822  E5.3.3.1; steroid Delta-isomerase
KEGG modules [BR:ko00002]
 Pathway module
  Carbohydrate and lipid metabolism
   Sterol biosynthesis
    M00107  Steroid hormone biosynthesis, cholesterol => prognenolone => progesterone
     K01822  E5.3.3.1; steroid Delta-isomerase
    M00110  C19/C18-Steroid hormone biosynthesis, pregnenolone => androstenedione => estrone
     K01822  E5.3.3.1; steroid Delta-isomerase
Enzymes [BR:ko01000]
 5. Isomerases
  5.3  Intramolecular oxidoreductases
   5.3.3  Transposing C=C bonds
    5.3.3.1  steroid Delta-isomerase
     K01822  E5.3.3.1; steroid Delta-isomerase
BRITE hierarchy
Other DBs
Genes
PRE: 
PVR: 
PPUU: 
PKC: 
SPL: 
SHL: 
SPOI: 
ZAL: 
OSG: 
HJA: 
SDF: 
ACG33_03815
GPB: 
HDN1F_02730(ksi)
REU: 
Reut_A1514
REH: 
H16_B0602(h16_B0602)
CNC: 
CNE_2c05470
CTI: 
RALTA_B0406
CBW: 
RR42_s2306
BFN: 
OI25_4583
AJS: 
Ajs_2963
DIA: 
Dtpsy_2390
CTT: 
CtCNB1_1323
CTES: 
O987_07595
CSER: 
CCO03_15920
AZO: 
azo3316
XAU: 
Xaut_1492
HNE: 
HNE_1461
NAR: 
Saro_3596 Saro_3765
NPP: 
PP1Y_Mpl2956
SWI: 
Swit_3295
SPHM: 
G432_01540 G432_04695 G432_04850
SSAN: 
NX02_14810
SPHB: 
EP837_02960 EP837_03245 EP837_03374
SPHG: 
AZE99_02185
OIH: 
OB0288
MTU: 
Rv0760c
MTV: 
RVBD_0760c
MTC: 
MT0785
MRA: 
MRA_0770
MTF: 
TBFG_10775
MTB: 
TBMG_00775
MTK: 
TBSG_00779
MTZ: 
TBXG_000768
MTG: 
MRGA327_04735
MTI: 
MRGA423_04755
MTE: 
CCDC5079_0703
MTUR: 
CFBS_0799
MTL: 
CCDC5180_0695
MTO: 
MTCTRI2_0779
MTD: 
UDA_0760c
MTN: 
ERDMAN_0842
MTJ: 
J112_04090
MTUB: 
MT7199_0781
MTUC: 
J113_05370
MTUE: 
J114_04060
MTX: 
M943_03980
MTUH: 
I917_05390
MTUL: 
TBHG_00752
MTUT: 
HKBT1_0799
MTUU: 
HKBT2_0800
MTQ: 
HKBS1_0799
MBO: 
Mb0783c
MBB: 
BCG_0812c
MBT: 
JTY_0782
MBM: 
BCGMEX_0783c
MBK: 
K60_008130
MBX: 
BCGT_0561
MBZ: 
LH58_04140
MAF: 
MAF_07720
MCE: 
MCAN_07641
MCQ: 
BN44_10830
MCV: 
BN43_20195
MCX: 
BN42_20518
MCZ: 
BN45_20029
MMIC: 
RN08_0849
MPA: 
MAP_0594c MAP_2478 MAP_2705c
MAO: 
MAP4_1111 MAP4_1345 MAP4_3271
MAVI: 
RC58_05520 RC58_06655 RC58_16235
MAVU: 
RE97_05515 RE97_06645 RE97_16265
MAV: 
MAV_0704 MAV_1209 MAV_1444
MAVD: 
NF84_03200 NF84_05330 NF84_06480
MAVR: 
LA63_03295 LA63_05450 LA63_06610
MAVA: 
LA64_03305 LA64_05465 LA64_06620
MIT: 
OCO_05970 OCO_11160 OCO_15430
MIA: 
OCU_06010 OCU_11140 OCU_15870
MIE: 
LG41_03000 LG41_05395 LG41_07415
MIR: 
OCQ_06120 OCQ_11170 OCQ_13340
MID: 
MIP_01077 MIP_01799 MIP_02150
MYO: 
OEM_06060 OEM_11270 OEM_13520
MSM: 
MSMEG_5258 MSMEG_5867
MSG: 
MSMEI_5120 MSMEI_5708
MSB: 
LJ00_26005 LJ00_29015
MSN: 
LI99_26010 LI99_29020
MSH: 
LI98_26015 LI98_29025
MSA: 
Mycsm_05075 Mycsm_05686
MUL: 
MUL_0195 MUL_0468
MVA: 
Mvan_4664 Mvan_5165
MGI: 
Mflv_1592 Mflv_2053
MSP: 
Mspyr1_09780 Mspyr1_14770
MAB: 
MAB_1206
MABB: 
MASS_1204
MMV: 
MYCMA_0644
MAY: 
LA62_06125
MABO: 
NF82_06100
MABL: 
MMASJCM_1233
MAZ: 
LA61_06030
MAK: 
LH56_17040
MYS: 
NF92_17510
MYC: 
NF90_17515
MCHE: 
BB28_05990
MIZ: 
BAB75_06575
MMC: 
Mmcs_4139 Mmcs_4586
MKM: 
Mkms_4214 Mkms_4674
MJL: 
Mjls_4370 Mjls_4969
MJD: 
JDM601_1031
MMI: 
MMAR_4382 MMAR_4937
MMAE: 
MMARE11_42020 MMARE11_47470
MRH: 
MycrhN_2406 MycrhN_3525
MMM: 
W7S_02930 W7S_05455 W7S_06520
MCB: 
Mycch_4076 Mycch_4526
MLI: 
MULP_04597 MULP_05181
MKN: 
MKAN_08100 MKAN_11300
MKS: 
LG40_07955 LG40_11145
MKI: 
LH54_08055 LH54_11270
MNE: 
D174_21515 D174_23880
MYV: 
G155_04240 G155_05080 G155_22900
MYE: 
AB431_06300 AB431_26000
MGO: 
AFA91_11385 AFA91_14335
MFT: 
XA26_08050 XA26_09800 XA26_46970
MHAD: 
B586_05030
MPHL: 
MPHLCCUG_00647 MPHLCCUG_04255(ksi)
MVQ: 
MYVA_4490 MYVA_5047
ASD: 
AS9A_0954
NFA: 
NFA_13370 NFA_22430
NFR: 
ERS450000_01854(ksi_1) ERS450000_02770(ksi_2)
NCY: 
NOCYR_1399(ksdI) NOCYR_2411
NBR: 
O3I_008870 O3I_012175
NNO: 
NONO_c36120 NONO_c59430(ksdI)
NSL: 
BOX37_11780
NSR: 
NS506_06879
RHA: 
RHA1_ro03609 RHA1_ro09001
RER: 
RER_13740(ksi) RER_59940
REY: 
O5Y_06470 O5Y_28730
REB: 
XU06_06730 XU06_08140 XU06_29060
ROP: 
ROP_34080(ksi)
ROA: 
Pd630_LPD08001
REQ: 
REQ_00120 REQ_46990
RPY: 
Y013_10750 Y013_14870 Y013_16310
RAV: 
AAT18_20785 AAT18_26480
RHW: 
BFN03_18225
GBR: 
Gbro_4817
GPO: 
GPOL_c41280(ksdI) GPOL_c49840
GOR: 
KTR9_4702
GOQ: 
ACH46_03070 ACH46_20535
GTA: 
BCM27_04880 BCM27_24895
DTM: 
BJL86_3299
SGR: 
SGR_6072
SVL: 
Strvi_3968
SALS: 
SLNWT_0271
SRC: 
M271_05600 M271_05605
STRC: 
AA958_00655
NCA: 
Noca_3954
NDK: 
I601_0503(ksi)
PSIM: 
KR76_23530 KR76_27120
FAL: 
FRAAL4373
SEN: 
SACE_4441
SAQ: 
Sare_2441
CYN: 
Cyan7425_3259
MIC: 
Mic7113_3670
MPRO: 
BJP34_04745
NON: 
NOS3756_37870
RIV: 
Riv7116_4576 Riv7116_5342
FIS: 
FIS3754_26380
TRS: 
Terro_1090
NMV: 
NITMOv2_2424
NGA: 
Ngar_c20430
 » show all
TaxonomyKoalaUniProt
Reference
  Authors
MacLachlan J, Wotherspoon AT, Ansell RO, Brooks CJ
  Title
Cholesterol oxidase: sources, physical properties and analytical applications.
  Journal
J Steroid Biochem Mol Biol 72:169-95 (2000)
DOI:10.1016/S0960-0760(00)00044-3
KEGG   ENZYME: 5.3.3.1Help
Entry
EC 5.3.3.1                  Enzyme                                 

Name
steroid Delta-isomerase;
hydroxysteroid isomerase;
steroid isomerase;
Delta5-ketosteroid isomerase;
Delta5(or Delta4)-3-keto steroid isomerase;
Delta5-steroid isomerase;
3-oxosteroid isomerase;
Delta5-3-keto steroid isomerase;
Delta5-3-oxosteroid isomerase
Class
Isomerases;
Intramolecular oxidoreductases;
Transposing C=C bonds
BRITE hierarchy
Sysname
3-oxosteroid Delta5-Delta4-isomerase
Reaction(IUBMB)
a 3-oxo-Delta5-steroid = a 3-oxo-Delta4-steroid [RN:R02644]
Reaction(KEGG)
Substrate
3-oxo-Delta5-steroid [CPD:C01034]
Product
3-oxo-Delta4-steroid [CPD:C00619]
Comment
This activity is catalysed by several distinct enzymes (cf. EC 1.1.3.6, cholesterol oxidase and EC 1.1.1.145, 3-hydroxy-5-steroid dehydrogenase).
History
EC 5.3.3.1 created 1961
Pathway
Steroid hormone biosynthesis
Steroid degradation
Metabolic pathways
Microbial metabolism in diverse environments
Orthology
K00070  
3beta-hydroxy-Delta5-steroid dehydrogenase / steroid Delta-isomerase
K01822  
steroid Delta-isomerase
K16045  
3beta-hydroxy-Delta5-steroid dehydrogenase / steroid Delta-isomerase
Genes
HSA: 
3283(HSD3B1) 3284(HSD3B2)
PTR: 
457165(HSD3B2) 469446(HSD3B1)
PPS: 
GGO: 
PON: 
100451655(HSD3B1) 100452394(HSD3B2)
NLE: 
MCC: 
712686(HSD3B2) 713091(HSD3B1)
MCF: 
CSAB: 
RRO: 
CJC: 
100387484 100389654(HSD3B1) 100400416 100405879
SBQ: 
101042680 101051416
MMU: 
100043456(Gm10681) 15492(Hsd3b1) 15493(Hsd3b2) 15495(Hsd3b4) 15496(Hsd3b5) 15497(Hsd3b6)
RNO: 
108348086 24470(Hsd3b5) 29632(Hsd3b2) 360348(Hsd3b1) 682974(Hsd3b3)
CGE: 
100770922 100772588 103163008
NGI: 
103728305 103732007 103738837
HGL: 
101707488(Hsd3b1) 101707858
CCAN: 
109702728 109702729
OCU: 
100346986 100347914
TUP: 
102470981 102471410
CFA: 
483146(HSD3B2)
AML: 
100464280(HSD3B1)
UMR: 
103677123
FCA: 
100616070(HSD3B2)
PTG: 
102957262
AJU: 
106978496
BTA: 
281824(HSD3B1)
BOM: 
102274088
BIU: 
109555859
PHD: 
102328070
CHX: 
100860869(3BHSD)
OAS: 
100190978(HSD3B1)
SSC: 
445539(HSD3B1)
CFR: 
102512447
BACU: 
103015346
LVE: 
103083046
ECB: 
100034078(HSD3B2)
MYB: 
106723550(HSD3B2)
HAI: 
109389868(HSD3B2)
RSS: 
109446820(HAO2)
PALE: 
102891879
LAV: 
100659049(HSD3B2)
MDO: 
100012668
SHR: 
100913530(HSD3B2)
OAA: 
100080135
GGA: 
396015(HSD3B1)
MGP: 
104915630
CJO: 
107319373(3beta-HSD)
APLA: 
101793560 101803865
TGU: 
751770(HSD3B1)
GFR: 
102039409
FAB: 
101817697
PHI: 
102101526
CCW: 
104687106
FPG: 
101921564
FCH: 
102052697
CLV: 
102087460
AAM: 
106497227
ASN: 
102367786(HSD3B1)
AMJ: 
109280168(HSD3B1)
PSS: 
102453952
CMY: 
102934871
CPIC: 
101946936
ACS: 
100561899(hsd3b1)
PBI: 
103067418
GJA: 
107114856
XLA: 
734818(hsd3b1.L)
XTR: 
100490622
DRE: 
373131(hsd3b2) 553532(hsd3b1)
IPU: 
100304475(HSD3B)
TRU: 
101069884(hsd3b1)
TNG: 
GSTEN00029150G001
LCO: 
104921488(hsd3b1)
MZE: 
101485719
OLA: 
100144358(3bhsd)
XMA: 
102228303
CSEM: 
103391994(hsd3b1)
SASA: 
106586600
LCM: 
102345588
CMK: 
103180179
BFO: 
BRAFLDRAFT_221648 BRAFLDRAFT_245803
SKO: 
100370123 102805982
DME: 
Dmel_CG7724
DPO: 
Dpse_GA20545
DAN: 
Dana_GF10105 Dana_GF19644
DER: 
Dere_GG13606
DSE: 
Dsec_GM25688
DSI: 
Dsimw501_GD14693(Dsim_GD14693)
DWI: 
Dwil_GK12665
DYA: 
Dyak_GE19901
DGR: 
Dgri_GH16404
DMO: 
Dmoj_GI12485
DVI: 
Dvir_GJ12388
MDE: 
101899660
AGA: 
AgaP_AGAP006654
AAG: 
AaeL_AAEL000733
CQU: 
CpipJ_CPIJ003056
NVI: 
100120136
ISC: 
IscW_ISCW007167 IscW_ISCW018715
HRO: 
HELRODRAFT_89375
LGI: 
LOTGIDRAFT_114779
CRG: 
105321517 105332656 105336240
OBI: 
106875030
PRE: 
PCA10_13780(ksi)
PVR: 
PverR02_11605
PPUU: 
PputUW4_01655
PKC: 
PKB_4244
SPL: 
Spea_2174
SHL: 
Shal_2145
SPOI: 
IMCC21906_02012
ZAL: 
AZF00_08390
OSG: 
BST96_05805
HJA: 
BST95_12875 BST95_17215
SDF: 
ACG33_03815
GPB: 
HDN1F_02730(ksi)
REU: 
Reut_A1514
REH: 
H16_B0602(h16_B0602)
CNC: 
CNE_2c05470
CTI: 
RALTA_B0406
CBW: 
RR42_s2306
BFN: 
OI25_4583
AJS: 
Ajs_2963
DIA: 
Dtpsy_2390
CTT: 
CtCNB1_1323
CTES: 
O987_07595
CSER: 
CCO03_15920
AZO: 
azo3316
XAU: 
Xaut_1492
HNE: 
HNE_1461
NAR: 
Saro_3596 Saro_3765
NPP: 
PP1Y_Mpl2956
SWI: 
Swit_3295
SPHM: 
G432_01540 G432_04695 G432_04850
SSAN: 
NX02_14810
SPHB: 
EP837_02960 EP837_03245 EP837_03374
SPHG: 
AZE99_02185
OIH: 
OB0288
MTU: 
Rv0760c Rv1106c
MTV: 
RVBD_0760c RVBD_1106c
MTC: 
MT0785 MT1137
MRA: 
MRA_0770 MRA_1117
MTF: 
TBFG_10775 TBFG_11128
MTB: 
TBMG_00775 TBMG_02877
MTK: 
TBSG_00779 TBSG_02893
MTZ: 
TBXG_000768 TBXG_002857
MTG: 
MRGA327_04735 MRGA327_06925
MTI: 
MRGA423_04755 MRGA423_06915
MTE: 
CCDC5079_0703 CCDC5079_1022
MTUR: 
CFBS_0799 CFBS_1174
MTL: 
CCDC5180_0695 CCDC5180_1014
MTO: 
MTCTRI2_0779 MTCTRI2_1136
MTD: 
UDA_0760c UDA_1106c
MTN: 
ERDMAN_0842 ERDMAN_1239
MTJ: 
J112_04090 J112_05975
MTUB: 
MT7199_0781 MT7199_1133
MTUC: 
J113_05370 J113_07785
MTUE: 
J114_04060 J114_05980
MTX: 
M943_03980 M943_05820
MTUH: 
I917_05390 I917_07855
MTUL: 
TBHG_00752 TBHG_01091
MTUT: 
HKBT1_0799 HKBT1_1172
MTUU: 
HKBT2_0800 HKBT2_1178
MTQ: 
HKBS1_0799 HKBS1_1174
MBO: 
Mb0783c Mb1136c
MBB: 
BCG_0812c BCG_1166c
MBT: 
JTY_0782 JTY_1139
MBM: 
BCGMEX_0783c BCGMEX_1138c
MBK: 
K60_008130 K60_011910
MBX: 
BCGT_0561 BCGT_0934
MBZ: 
LH58_04140 LH58_06095
MAF: 
MAF_07720 MAF_11210
MCE: 
MCAN_07641 MCAN_11161
MCQ: 
BN44_10830 BN44_11231
MCV: 
BN43_20195 BN43_30163
MCX: 
BN42_20518 BN42_20954
MCZ: 
BN45_20029 BN45_30150
MMIC: 
RN08_0849 RN08_1242
MLE: 
ML1942
MLB: 
MLBr01942
MPA: 
MAP_0594c MAP_2478 MAP_2688 MAP_2705c
MAO: 
MAP4_1111 MAP4_1128 MAP4_1345 MAP4_3271
MAVI: 
RC58_05520 RC58_05605 RC58_06655 RC58_16235
MAVU: 
RE97_05515 RE97_05600 RE97_06645 RE97_16265
MAV: 
MAV_0704 MAV_1209 MAV_1225 MAV_1444
MAVD: 
NF84_03200 NF84_05330 NF84_05415 NF84_06480
MAVR: 
LA63_03295 LA63_05450 LA63_05535 LA63_06610
MAVA: 
LA64_03305 LA64_05465 LA64_05550 LA64_06620
MIT: 
OCO_05970 OCO_11160 OCO_11340 OCO_15430
MIA: 
OCU_06010 OCU_11140 OCU_11320 OCU_15870
MIE: 
LG41_03000 LG41_05395 LG41_05485 LG41_07415
MIR: 
OCQ_06120 OCQ_11170 OCQ_11350 OCQ_13340
MID: 
MIP_01077 MIP_01799 MIP_01824 MIP_02150
MYO: 
OEM_06060 OEM_11270 OEM_11450 OEM_13520
MSM: 
MSMEG_5228 MSMEG_5258 MSMEG_5867
MSG: 
MSMEI_5091 MSMEI_5120 MSMEI_5708
MSB: 
LJ00_25860 LJ00_26005 LJ00_29015
MSN: 
LI99_25865 LI99_26010 LI99_29020
MSH: 
LI98_25870 LI98_26015 LI98_29025
MSA: 
Mycsm_05045 Mycsm_05075 Mycsm_05686
MUL: 
MUL_0172 MUL_0195 MUL_0468
MVA: 
Mvan_4635 Mvan_4664 Mvan_5165
MGI: 
Mflv_1592 Mflv_2053 Mflv_2075
MSP: 
Mspyr1_09780 Mspyr1_14770 Mspyr1_14990
MAB: 
MAB_1206
MABB: 
MASS_1204
MMV: 
MYCMA_0644
MAY: 
LA62_06125
MABO: 
NF82_06100
MABL: 
MMASJCM_1233
MAZ: 
LA61_06030
MAK: 
LH56_17040
MYS: 
NF92_17510
MYC: 
NF90_17515
MCHE: 
BB28_05990
MIZ: 
BAB75_06575
MMC: 
Mmcs_4109 Mmcs_4139 Mmcs_4586
MKM: 
Mkms_4185 Mkms_4214 Mkms_4674
MJL: 
Mjls_4340 Mjls_4370 Mjls_4969
MJD: 
JDM601_1031 JDM601_1056
MMI: 
MMAR_4359 MMAR_4382 MMAR_4937
MMAE: 
MMARE11_41790 MMARE11_42020 MMARE11_47470
MRH: 
MycrhN_2406 MycrhN_3525 MycrhN_3550
MMM: 
W7S_02930 W7S_05455 W7S_05545 W7S_06520
MCB: 
Mycch_4050 Mycch_4076 Mycch_4526
MLI: 
MULP_04570 MULP_04597 MULP_05181
MKN: 
MKAN_07985 MKAN_08100 MKAN_11300
MKS: 
LG40_07955 LG40_11145
MKI: 
LH54_08055 LH54_11270
MNE: 
D174_21420 D174_21515 D174_23880
MYV: 
G155_04240 G155_05080 G155_22700 G155_22900
MYE: 
AB431_06300 AB431_06460 AB431_26000
MGO: 
AFA91_11385 AFA91_14335 AFA91_14490
MFT: 
XA26_08050 XA26_09800 XA26_46570 XA26_46970
MHAD: 
B586_05030 B586_07090
MPHL: 
MPHLCCUG_00647 MPHLCCUG_04229 MPHLCCUG_04255(ksi)
MVQ: 
MYVA_4444 MYVA_4490 MYVA_5047
ASD: 
AS9A_0954
NFA: 
NFA_13370 NFA_22430
NFR: 
ERS450000_01854(ksi_1) ERS450000_02770(ksi_2)
NCY: 
NOCYR_1399(ksdI) NOCYR_2411
NBR: 
O3I_008870 O3I_012175
NNO: 
NONO_c36120 NONO_c59430(ksdI)
NSL: 
BOX37_11780
NSR: 
NS506_06879
RHA: 
RHA1_ro03609 RHA1_ro09001
RER: 
RER_13740(ksi) RER_59940
REY: 
O5Y_06470 O5Y_28730
REB: 
XU06_06730 XU06_08140 XU06_29060
ROP: 
ROP_34080(ksi)
ROA: 
Pd630_LPD08001
REQ: 
REQ_00120 REQ_46990
RPY: 
Y013_10750 Y013_14870 Y013_16310
RAV: 
AAT18_20785 AAT18_26480
RHW: 
BFN03_18225
GBR: 
Gbro_4817
GPO: 
GPOL_c41280(ksdI) GPOL_c49840
GOR: 
KTR9_4702
GOQ: 
ACH46_03070 ACH46_20535
GTA: 
BCM27_04880 BCM27_24895
DTM: 
BJL86_3299
SGR: 
SGR_6072
SVL: 
Strvi_3968
SALS: 
SLNWT_0271
SRC: 
M271_05600 M271_05605
STRC: 
AA958_00655
NCA: 
Noca_3954
NDK: 
I601_0503(ksi)
PSIM: 
KR76_23530 KR76_27120
FAL: 
FRAAL4373
SEN: 
SACE_4441
SAQ: 
Sare_2441
CYN: 
Cyan7425_3259
MIC: 
Mic7113_3670
MPRO: 
BJP34_04745
NON: 
NOS3756_37870
RIV: 
Riv7116_4576 Riv7116_5342
FIS: 
FIS3754_26380
TRS: 
Terro_1090
NMV: 
NITMOv2_2424
NGA: 
Ngar_c20430
 » show all
Taxonomy
Reference
1  [PMID:5867327]
  Authors
Ewald W, Werbin H, Chaikoff IL.
  Title
Evidence for the presence of 17-hydroxypregnenedione isomerase in beef adrenal cortex.
  Journal
Biochim. Biophys. Acta. 111 (1965) 306-12.
Reference
2  [PMID:14404954]
  Authors
KAWAHARA FS, TALALAY P.
  Title
Crystalline Delta 5-3-ketosteroid isomerase.
  Journal
J. Biol. Chem. 235 (1960) PC1-2.
Reference
3  [PMID:13276386]
  Authors
TALALAY P, WANG VS.
  Title
Enzymic isomerization of delta5-3-ketosteroids.
  Journal
Biochim. Biophys. Acta. 18 (1955) 300-1.
Reference
4  [PMID:10822008]
  Authors
MacLachlan J, Wotherspoon AT, Ansell RO, Brooks CJ
  Title
Cholesterol oxidase: sources, physical properties and analytical applications.
  Journal
J. Steroid. Biochem. Mol. Biol. 72 (2000) 169-95.
Other DBs
ExplorEnz - The Enzyme Database: 
IUBMB Enzyme Nomenclature: 
ExPASy - ENZYME nomenclature database: 
BRENDA, the Enzyme Database: 
CAS: 
9031-36-1
KEGG   REACTION: R09955Help
Entry
R09955                      Reaction                               

Name
5-androstene-3,17-dione delta5-delta4-isomerase
Definition
5-Androstene-3,17-dione <=> Androstenedione
Equation
Reaction class
C00280_C20252
Enzyme
Pathway
Steroid degradation
Microbial metabolism in diverse environments
Orthology
K01822  
steroid Delta-isomerase [EC:5.3.3.1]
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