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FAD2

Gene
FAD2
Protein
Delta(12) fatty acid desaturase FAD2
Organism
Calendula officinalis
Length
383 amino acids
Function
Catalyzes the desaturation of oleic acid to linoleic acid. Introduces a double bond at position 12 of 16:1(9Z) and 18:1(9Z).
Similarity
Belongs to the fatty acid desaturase type 1 family.
Mass
43.996 kDa
Sequence
MGAGGRMQDPTNGGNKTEPEPIQRVPHEKPPFTVGDIKKAIPPHCFNRSVIRSFSYVFYDLTIASILYYIANNYISTLPSPLAYVAWPVYWAVQGCVLTGVWVIAHECGHHAFSDHQWLDDTVGLVLHSFLLVPYFSWKYSHRRHHSNTGSIEHDEVFVPKLKSGVRSTARYLNNPPGRILTLLVTLTLGWPLYLTFNVSGRYYDRFACHFDPNSPIYSKRERAQIFISDAGILAVVFVLFRLAMTKGLTWVLTMYGGPLLVVNGFLVLITFLQHTHPSLPHYDSTEWDWLRGALTTIDRDYGILNKVFHNITDTHVAHHLFSTMPHYHAMEATKVIKPILGDYYQFDGTSIFKAMYRETKECIYVDKDEEVKDGVYWYRNKI

Gene
FAD2
Protein
Delta(12)-fatty-acid desaturase FAD2
Organism
Vernicia fordii
Length
383 amino acids
Function
Catalyzes the desaturation of oleic acid (18:1(9Z)) to linoleic acid (18:2(9Z,12Z)).
Similarity
Belongs to the fatty acid desaturase type 1 family.
Mass
44.152 kDa
Sequence
MGAGGRMSVPPPPKKLESEVLKRVPHSKPPFTLGQLKKAIPPHCFQRSVLRSFSYVVYDLTVAFIFYYIATNYFHLLPQPLSYVAWPIYWALQGCVLTGVWVIAHECGHHAFSDYQLLDDIVGLVLHSCLLVPYFSWKHSHRRHHSNTASLERDEVFVPKKKSSIRWFSKYLNNPPGRLFTLTITLTLGWPLYLAFNVSGRPYDRFACHYDPYGPIYTDRERTEIYISDAGVLAVTFGLYRLAAAKGLAWVICVYGVPLLIVNAFLVMITYLQHTHPSIPHYDSSEWDWLRGALATVDRDYGILNKVFHNITDTHVAHHLFSTMPHYHAMEATKAIKPILGEYYQFDGTPFYKAMWREAKECIYVEADDGDESKGVYWYNKKF

Gene
FAD2
Protein
Delta(12)-fatty-acid desaturase
Organism
Arabidopsis thaliana
Length
383 amino acids
Function
ER (microsomal) omega-6 fatty acid desaturase introduces the second double bond in the biosynthesis of 18:3 fatty acids, important constituents of plant membranes (PubMed:14593172, PubMed:7907506). Delta(12)-desaturase with regioselectivity determined by the double bond (delta(9) position) and carboxyl group of the substrate. Can use both 16:1 and 18:1 fatty acids as substrates (PubMed:8685264). It is thought to use cytochrome b5 as an electron donor and to act on fatty acids esterified to phosphatidylcholine (PC) and, possibly, other phospholipids (PubMed:14593172, PubMed:7907506, PubMed:1730697). Very low constitutive hydroxylation activity (PubMed:11864983). Required for desaturation of fatty acids present in extraplastidial membranes, including mitochondria (PubMed:11104757, PubMed:17507388). Required for salt tolerance during seed germination and early seedling growth (PubMed:22279586).
Similarity
Belongs to the fatty acid desaturase type 1 family.
Mass
44.048 kDa
Sequence
MGAGGRMPVPTSSKKSETDTTKRVPCEKPPFSVGDLKKAIPPHCFKRSIPRSFSYLISDIIIASCFYYVATNYFSLLPQPLSYLAWPLYWACQGCVLTGIWVIAHECGHHAFSDYQWLDDTVGLIFHSFLLVPYFSWKYSHRRHHSNTGSLERDEVFVPKQKSAIKWYGKYLNNPLGRIMMLTVQFVLGWPLYLAFNVSGRPYDGFACHFFPNAPIYNDRERLQIYLSDAGILAVCFGLYRYAAAQGMASMICLYGVPLLIVNAFLVLITYLQHTHPSLPHYDSSEWDWLRGALATVDRDYGILNKVFHNITDTHVAHHLFSTMPHYNAMEATKAIKPILGDYYQFDGTPWYVAMYREAKECIYVEPDREGDKKGVYWYNNKL

Gene
FAD2
Protein
Delta(12)-oleate desaturase
Organism
Trichosanthes kirilowii
Length
369 amino acids
Function
Delta(12)-fatty acid desaturase producing in a heterologous system linoleic acid (18:2(9Z,12Z)) and to a lower extent hexadecadienoic acid (16:2(9Z,12Z)).
Similarity
Belongs to the fatty acid desaturase type 1 family.
Mass
43.103 kDa
Sequence
MEKGVQERVPHAKPPFTLSQIKKVVPPHCFHRSLLRSFSYLLSDLAFVSLFFYLAIAYFPLLPHPFPYIAWPLYWIFQGCSLTGVWVIAHECGHHAFSDYQLIDDIVGLFFHSALLVPYFSWKYSHRRHHSNTGSLERDEVFVPKPKSQIPWYLKYFNNPPGRLISLIGTLTLGWPLYLAFNMSGRPYDRFACHYDPYSPIFTKREWIQVYISDAGILGMAFMLYRIGVEKGSFWVMRIYGIPLVIVNGFLVLITYLQHTHPALPHYESSEWDWLRGALATVDRDYGVLNRVFHNITDTHVVHHLFSTMPHYHAKEATEAVKPVLGEYYRLDRTPVLKAIWREAKECVYVEPDEDADSDKGVVWYRKKL

Gene
FAD2
Protein
Delta(12)-oleate desaturase
Organism
Trichosanthes kirilowii
Length
369 amino acids
Function
Delta(12)-fatty acid desaturase producing in a heterologous system linoleic acid (18:2(9Z,12Z)) and to a lower extent hexadecadienoic acid (16:2(9Z,12Z)).
Similarity
Belongs to the fatty acid desaturase type 1 family.
Mass
43.103 kDa
Sequence
MEKGVQERVPHAKPPFTLSQIKKVVPPHCFHRSLLRSFSYLLSDLAFVSLFFYLAIAYFPLLPHPFPYIAWPLYWIFQGCSLTGVWVIAHECGHHAFSDYQLIDDIVGLFFHSALLVPYFSWKYSHRRHHSNTGSLERDEVFVPKPKSQIPWYLKYFNNPPGRLISLIGTLTLGWPLYLAFNMSGRPYDRFACHYDPYSPIFTKREWIQVYISDAGILGMAFMLYRIGVEKGSFWVMRIYGIPLVIVNGFLVLITYLQHTHPALPHYESSEWDWLRGALATVDRDYGVLNRVFHNITDTHVVHHLFSTMPHYHAKEATEAVKPVLGEYYRLDRTPVLKAIWREAKECVYVEPDEDADSDKGVVWYRKKL