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Fad4

Gene
Fad4
Protein
Acyl-lipid (7-3)-desaturase
Organism
Thraustochytrium sp
Length
519 amino acids
Function
Fatty acid desaturase that introduces a cis double bond at the 4-position in 22-carbon polyunsaturated fatty acids that contain a Delta(7) double bond, resulting in the production of delta-4 desaturated fatty acid docosahexanoic acid (DHA) (22:6(4,7,10,13,16,19)).
Similarity
Belongs to the fatty acid desaturase type 1 family.
Mass
59.119 kDa
Sequence
MTVGYDEEIPFEQVRAHNKPDDAWCAIHGHVYDVTKFASVHPGGDIILLAAGKEATVLYETYHVRGVSDAVLRKYRIGKLPDGQGGANEKEKRTLSGLSSASYYTWNSDFYRVMRERVVARLKERGKARRGGYELWIKAFLLLVGFWSSLYWMCTLDPSFGAILAAMSLGVFAAFVGTCIQHDGNHGAFAQSRWVNKVAGWTLDMIGASGMTWEFQHVLGHHPYTNLIEEENGLQKVSGKKMDTKLADQESDPDVFSTYPMMRLHPWHQKRWYHRFQHIYGPFIFGFMTINKVVTQDVGVVLRKRLFQIDAECRYASPMYVARFWIMKALTVLYMVALPCYMQGPWHGLKLFAIAHFTCGEVLATMFIVNHIIEGVSYASKDAVKGTMAPPKTMHGVTPMNNTRKEVEAEASKSGAVVKSVPLDDWAVVQCQTSVNWSVGSWFWNHFSGGLNHQIEHHLFPGLSHETYYHIQDVFQSTCAEYGVPYQHEPSLWTAYWKMLEHLRQLGNEETHESWQRAA

Gene
FAD4
Protein
Fatty acid desaturase 4, chloroplastic
Organism
Arabidopsis thaliana
Length
323 amino acids
Function
Fatty acid desaturase involved in the production of chloroplast-specific phosphatidylglycerol molecular species containing 16:1(3E). Catalyzes the formation of a trans double bond introduced close to the carboxyl group of palmitic acid, which is specifically esterified to the sn-2 glyceryl carbon of phosphatidylglycerol.
Mass
36.38 kDa
Sequence
MAVSLPTKYPLRPITNIPKSHRPSLLRVRVTCSVTTTKPQPNREKLLVEQRTVNLPLSNDQSLQSTKPRPNREKLVVEQRLASPPLSNDPTLKSTWTHRLWVAAGCTTLFVSLAKSVIGGFDSHLCLEPALAGYAGYILADLGSGVYHWAIDNYGDESTPVVGTQIEAFQGHHKWPWTITRRQFANNLHALAQVITFTVLPLDLAFNDPVFHGFVCTFAFCILFSQQFHAWAHGTKSKLPPLVVALQDMGLLVSRRQHAEHHRAPYNNNYCIVSGAWNNVLDESKVFEALEMVFYFQLGVRPRSWSEPNSDWIEETEISNNQA