Protein
NADPH-dependent stearoyl-CoA 9-desaturase
Organism
Mycobacterium tuberculosis (strain CDC 1551 / Oshkosh)
Function
Is likely involved in the aerobic desaturation system responsible for the synthesis of oleic acid from stearoyl-CoA; oleic acid is a precursor of mycobacterial membrane phospholipids and triglycerides. Catalyzes the conversion of stearoyl-CoA to oleoyl-CoA by introduction of a cis double bond between carbons 9 and 10 of the acyl chain. Requires the electron transfer partner Rv3230c to pass two electrons from NADPH to its active site diiron center. Is also able to catalyze the 9-desaturation of palmitoyl-CoA to palmitoleoyl-CoA.
Similarity
Belongs to the fatty acid desaturase type 1 family.
Sequence
MAITDVDVFAHLTDADIENLAAELDAIRRDVEESRGERDARYIRRTIAAQRALEVSGRLLLAGSSRRLAWWTGALTLGVAKIIENMEIGHNVMHGQWDWMNDPEIHSSTWEWDMSGSSKHWRYTHNFVHHKYTNILGMDDDVGYGMLRVTRDQRWKRYNIFNVVWNTILAIGFEWGVALQHLEIGKIFKGRADREAAKTRLREFSAKAGRQVFKDYVAFPALTSLSPGATYRSTLTANVVANVIRNVWSNAVIFCGHFPDGAEKFTKTDMIGEPKGQWYLRQMLGSANFNAGPALRFMSGNLCHQIEHHLYPDLPSNRLHEISVRVREVCDRYDLPYTTGSFLVQYGKTWRTLAKLSLPDKYLRDNADDAPETRSERMFAGLGPGFAGADPVTGRRRGLKTAIAAVRGRRRSKRMAKSVTEPDDLAA