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1.13.11.58: linoleate 9S-lipoxygenase

This is an abbreviated version!
For detailed information about linoleate 9S-lipoxygenase, go to the full flat file.

Word Map on EC 1.13.11.58

Reaction

linoleate
+
O2
=
(9S,10E,12Z)-9-hydroperoxy-10,12-octadecadienoate

Synonyms

15-LOX, 9-lipoxygenase, 9-LO, 9-LOX, 9LOX, 9S-lipoxygenase, arachidonate 9S-LOX, AtLOX-1, AtLOX-5, AtLOX1, AtLOX5, CaLOX1, eLOX3, epidermal lipoxygenase-3, GhLOX1, L-2, linoleate 9-lipoxygenase, linoleate 9S-lipoxygenase, linoleate 9S-lipoxygenase 1, linoleate 9S-lipoxygenase 2, linoleate 9S-lipoxygenase 3, linoleate oxygen oxidoreductase, lipoxygenase, LOX, LOX1, LOX1.1, LOX1.3, LOX12, LOX13, LOX14, LOX1:Md:1c, LOX1c, LOX2, LOX3, LOX4, LOX5, LOX6, LOX7, LOX8, LOX9, LoxA, Nb-9-LOX, Osr9-LOX1, plant LOX-1, POTLX-1, r9-LOX1, seed linoleate 9S-lipoxygenase-3, StLOX1, tuberization protein, type-1 9-LOX, ZmLOX3, ZmLOX5

ECTree

     1 Oxidoreductases
         1.13 Acting on single donors with incorporation of molecular oxygen (oxygenases)
             1.13.11 With incorporation of two atoms of oxygen
                1.13.11.58 linoleate 9S-lipoxygenase

Engineering

Engineering on EC 1.13.11.58 - linoleate 9S-lipoxygenase

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PROTEIN VARIANTS
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
A562G
the product of the wild-type enzyme is 98.8% (9S,10E,12Z)-9-hydroperoxy-10,12-octadecadienoate and 1.2% (9Z,11E,13S)-13-hydroperoxy-11,13-octadecadienoate. The product of mutant enzyme A562G is 68.9% (9S,10E,12Z)-9-hydroperoxy-10,12-octadecadienoate and 31.1% (9Z,11E,13S)-13-hydroperoxy-11,13-octadecadienoate. Wild-type enzyme converts anandamide mainly to (11S)-hydroperoxyanandamide (99.4%). The mutant A562G forms (11S)-hydroperoxyanandamide and 15R-hydroperoxyanandamide in the ratio 3:2
A451G
-
the mutant reacts well with arachidonic acid even in the absence of fatty acid hydroperoxides
G567A
site-directed mutagenesis, the mutant converts the dual positional specific LOX1:Md:1a to an enzyme with a high specificity for 9(S)-hydroperoxide formation
A564G
the product of the wild-type enzyme is 99.1% (9S,10E,12Z)-9-hydroperoxy-10,12-octadecadienoate and 0.9% (9Z,11E,13S)-13-hydroperoxy-11,13-octadecadienoate. The product of mutant enzyme A562G is 68.9% (9S,10E,12Z)-9-hydroperoxy-10,12-octadecadienoate and 31.1% (9Z,11E,13S)-13-hydroperoxy-11,13-octadecadienoate. Wild-type enzyme converts anandamide mainly to (11S)-hydroperoxyanandamide (71%), plus 16% (5S)-hydroperoxyanandamide. The mutant enzyme A564G forms two additional prominent products, 15-hydroperoxyanandamide (34%) and 9-hydroperoxyanandamide (19%)
I395F
-
the regioselectivity of the variant is changed from the n-12 position on C20 PUFA to the n-6 position to form 15S-HFAs
V569W
-
the variant has a significantly lower secondx1eoxygenating activity compared to wild type enzyme
additional information