Protein
Acyl-lipid (9-3)-desaturase
Organism
Physcomitrella patens subsp. patens
Function
Fatty acid desaturase able to introduce a delta(6)-double bond into delta(9)-unsaturated fatty-acid substrates. Can use both linoleic acid (18:2(9Z,12Z)) and alpha-linolenic acid (18:3(9Z,12Z,15Z)) as substrates. Required for the biosynthesis of arachidonic acid (20:4(5z,8Z,11Z,14Z)).
Similarity
Belongs to the fatty acid desaturase type 1 family.
Sequence
MVFAGGGLQQGSLEENIDVEHIASMSLFSDFFSYVSSTVGSWSVHSIQPLKRLTSKKRVSESAAVQCISAEVQRNSSTQGTAEALAESVVKPTRRRSSQWKKSTHPLSEVAVHNKPSDCWIVVKNKVYDVSNFADEHPGGSVISTYFGRDGTDVFSSFHAASTWKILQDFYIGDVERVEPTPELLKDFREMRALFLREQLFKSSKLYYVMKLLTNVAIFAASIAIICWSKTISAVLASACMMALCFQQCGWLSHDFLHNQVFETRWLNEVVGYVIGNAVLGFSTGWWKEKHNLHHAAPNECDQTYQPIDEDIDTLPLIAWSKDILATVENKTFLRILQYQHLFFMGLLFFARGSWLFWSWRYTSTAVLSPVDRLLEKGTVLFHYFWFVGTACYLLPGWKPLVWMAVTELMSGMLLGFVFVLSHNGMEVYNSSKEFVSAQIVSTRDIKGNIFNDWFTGGLNRQIEHHLFPTMPRHNLNKIAPRVEVFCKKHGLVYEDVSIATGTCKVLKALKEVAEAAAEQHATTS