Catalyzes all the condensation reaction of fatty acid synthesis by the addition to an acyl acceptor of two carbons from malonyl-ACP. Able to elongate saturated acyl chains from 4 to at least 16 carbons. Uses malonyl-CoA but not acetyl-CoA as primer substrate. When expressed in a heterologous system, reveals a bimodal distribution of products, with peaks at C8 and C14-C16. The major product of the reaction (octanoyl-ACP) is required for the lipoylation of essential mitochondrial proteins.

Belongs to the thiolase-like superfamily. Beta-ketoacyl-ACP synthases family.

461 amino acids

MATSNLRRHLSASRLRLNRFISTSSSYHSHRRVVVTGLGMVTPLGRGVETTWRRLIDGECGIRGLTLDDLKMKSFDEETKLYTFDQLSSKVAAFVPYGSNPGEFDEALWLNSKAVANFIGYAVCAADEALRDAEWLPTEEEEKERTGVSIGGGIGSICDIVEAAQLICEKRLRRLSPFFIPKILVNMASGHVSMKYGFQGPNHAAVTACATGAHSIGDATRMIQFGDADVMVAGGTESSIDALSVAGFSRSRALSTKFNSSPQEASRPFDCDRDGFVIGEGSGVIVLEEYEHAKRRGAKIYAELCGYGMSGDAHHITQPPEDGKGAVLAMTRALRQSGLCPNQIDYVNAHATSTPIGDAVEARAIKTVFSEHATSGTLAFSSTKGATGHLLGAAGAVEAIFSILAIHHGVAPMTLNVKNPDPIFDKRFMPLTTSKKMLVRTAMSNSFGFGGTNASLLFASI

49.4 kDa

(Note: Representative image - actual molecular weight may vary depending on tag type and expression method)

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