KEGG   ENZYME: 5.4.4.7Help
Entry
EC 5.4.4.7                  Enzyme                                 

Name
hydroperoxy icosatetraenoate isomerase;
epidermal lipoxygenase-3 (ambiguous);
eLOX3 (ambiguous)
Class
Isomerases;
Intramolecular transferases;
Transferring hydroxy groups
BRITE hierarchy
Sysname
hydroperoxyicosatetraenoate hydroxymutase
Reaction(IUBMB)
a hydroperoxyicosatetraenoate = a hydroxyepoxyicosatrienoate [RN:R10766]
Reaction(KEGG)
Substrate
hydroperoxyicosatetraenoate [CPD:C20832]
Product
hydroxyepoxyicosatrienoate [CPD:C20837]
Comment
Binds Fe2+. The enzyme from mammals accepts a range of hydroperoxyicosatetraenoates producing one or several different hydroxyepoxyicosatrienoates. The human enzyme has highest activity with (12R)-HPETE producing (5Z,8R,9E,11R,12R,14Z)-8-hydroxy-11,12-epoxyicosa-5,9,14-trienoate, followed by (12S)-HPETE producing (5Z,8Z,10R,11S,12S,14Z)-10-hydroxy-11,12-epoxyicosa-5,8,14-trienoate and (5Z,8R,9E,11S,12S,14Z)-8-hydroxy-11,12-epoxyicosa-5,9,14-trienoate [1]. The mouse enzyme has highest activity with (8S)-HPETE, producing (5Z,8S,9S,10R,11Z,14Z)-10-hydroxy-8,9-epoxyicosa-5,11,14-trienoate [2]. The enzymes also have the activity of EC 4.2.1.152, hydroperoxy icosatetraenoate dehydratase.
History
EC 5.4.4.7 created 2014
Orthology
K18684  
hydroperoxy icosatetraenoate dehydratase/isomerase
Genes
HSA: 
59344(ALOXE3)
PTR: 
455102(ALOXE3)
PPS: 
100972484(ALOXE3)
GGO: 
101143347(ALOXE3)
PON: 
100451294(ALOXE3)
NLE: 
100586195(ALOXE3)
MCC: 
716840(ALOXE3)
MCF: 
102115677(ALOXE3)
RRO: 
104661680(ALOXE3)
CJC: 
100410917(ALOXE3)
MMU: 
23801(Aloxe3)
RNO: 
287424(Aloxe3)
CGE: 
100754187(Aloxe3)
NGI: 
103752100(Aloxe3)
HGL: 
101709560(Aloxe3)
OCU: 
100342323(ALOXE3)
TUP: 
102493953(ALOXE3)
CFA: 
489487(ALOXE3)
AML: 
100479842(ALOXE3)
UMR: 
103660488(ALOXE3)
FCA: 
101101515(ALOXE3)
PTG: 
BTA: 
517001(ALOXE3)
BOM: 
102276466(ALOXE3)
PHD: 
102341938(ALOXE3)
CHX: 
OAS: 
101121693(ALOXE3)
SSC: 
100511043(ALOXE3)
CFR: 
102517831(ALOXE3)
BACU: 
102998369(ALOXE3)
ECB: 
100062351(ALOXE3)
MYB: 
102250064(ALOXE3)
MYD: 
102763007(ALOXE3)
PALE: 
102893198(ALOXE3)
MDO: 
100014706(ALOXE3)
SHR: 
100934620(ALOXE3)
CJO: 
GFR: 
102043765(ALOXE3)
FAB: 
101818404(ALOXE3)
PHI: 
CCW: 
AAM: 
106500300(ALOXE3)
ASN: 
AMJ: 
PSS: 
102450844(ALOX12B)
CMY: 
ACS: 
PBI: 
GJA: 
DRE: 
TRU: 
MZE: 
OLA: 
XMA: 
EHX: 
 » show all
Taxonomy
Reference
1  [PMID:12881489]
  Authors
Yu Z, Schneider C, Boeglin WE, Marnett LJ, Brash AR
  Title
The lipoxygenase gene ALOXE3 implicated in skin differentiation encodes a hydroperoxide isomerase.
  Journal
Proc. Natl. Acad. Sci. U. S. A. 100 (2003) 9162-7.
  Sequence
[hsa:59344]
Reference
2  [PMID:17045234]
  Authors
Yu Z, Schneider C, Boeglin WE, Brash AR
  Title
Human and mouse eLOX3 have distinct substrate specificities: implications for their linkage with lipoxygenases in skin.
  Journal
Arch. Biochem. Biophys. 455 (2006) 188-96.
  Sequence
[hsa:59344] [mmu:23801]
Reference
3  [PMID:20921226]
  Authors
Zheng Y, Brash AR
  Title
Dioxygenase activity of epidermal lipoxygenase-3 unveiled: typical and atypical features of its catalytic activity with natural and synthetic polyunsaturated fatty acids.
  Journal
J. Biol. Chem. 285 (2010) 39866-75.
  Sequence
[hsa:59344]
Other DBs
ExplorEnz - The Enzyme Database: 
IUBMB Enzyme Nomenclature: 
ExPASy - ENZYME nomenclature database: 
BRENDA, the Enzyme Database: 

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