Protein: Phenolphthiocerol/phthiocerol polyketide synthase subunit C (EC 2.3.1.292) ((Phenol)carboxyphthiodiolenone synthase subunit C) (Beta-ketoacyl-acyl-carrier-protein synthase I) (Phthiocerol synthesis polyketide synthase type I PpsC) (P96202)
Organism: Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)
Function: Part of the PpsABCDE complex involved in the biosynthesis of the lipid core common to phthiocerols and phenolphthiocerols by successive additions of malonyl-CoA or methylmalonyl-CoA extender units. PpsA can accept as substrate the activated forms of either icosanoyl (C20), docosanoyl (C22) or lignoceroyl (C24) groups from FadD26, or a (4-hydroxyphenyl)-C17 or (4-hydroxyphenyl)-C19 fatty acyl from FadD29. PpsA initiates the biosynthesis and extends its substrate using a malonyl-CoA extender unit. The PpsB and PpsC proteins add the second and third malonyl-CoA extender units. PpsD adds an (R)-methylmalonyl unit and PpsE adds a second (R)-methylmalonyl unit. The incorporation of the methylmalonyl units results in formation of two branched methyl groups in the elongated product.
Interaction partners:
- Probable fatty acid synthase Fas
- Phenolphthiocerol/phthiocerol polyketide synthase subunit E
- Phenyloxazoline synthase MbtB
- Phenolphthiocerol/phthiocerol polyketide synthase subunit B
- Phenolphthiocerol/phthiocerol polyketide synthase subunit D
- Mycoketide-CoA synthase
- Probable multifunctional mycocerosic acid synthase membrane-associated Mas
- Phthioceranic/hydroxyphthioceranic acid synthase
- Malonyl CoA-acyl carrier protein transacylase
- Mycocerosic acid synthase-like polyketide synthase
Sequence:
MTAATPDRRAIITEALHKIDDLTARLEIAEKSSSEPIAVIGMGCRFPGGVNNPEQFWDLLCAGRSGIVRVPAQRWDADAYYCDDHTVPGTICSTEGGFLTSWQPDEFDAEFFSISPREAAAMDPQQRLLIEVAWEALEDAGVPQHTIRGTQTSVFVGVTAYDYMLTLAGRLRPVDLDAYIPTGNSANFAAGRLAYILGARGPAVVIDTACSSSLVAVHLACQSLRGRESDMALVGGTNLLLSPGPSIACSRWGMLSPEGRCKTFDASADGYVRGEGAAVVVLKRLDDAVRDGNRILAVVRGSAVNQDGASSGVTVPNGPAQQALLAKALTSSKLTAADIDYVEAHGTGTPLGDPIELDSLSKVFSDRAGSDQLVIGSVKTNLGHLEAAAGVAGLMKAVLAVHNGYIPRHLNFHQLTPHASEAASRLRIAADGIDWPTTGRPRRAGVSSFGVSGTNAHVVIEQAPDPMAAAGTEPQRGPVPAVSTLVVFGKTAPRVAATASVLADWLDGPGAAVPLADVAHTLNHHRARQTRFGTVAAVDRRQAVIGLRALAAGQSAPGVVAPREGSIGGGTVFVYSGRGSQWAGMGRQLLADEPAFAAAIAELEPEFVAQGGFSLRDVIAGGKELVGIEQIQLGLIGMQLALTALWRSYGVTPDAVIGHSMGEVAAAVVAGALTPAQGLRVTAVRSRLMAPLSGQGTMALLELDAEATEALIADYPEVSLGIYASPRQTVISGPPLLIDELIDKVRQQNGFATRVNIEVAPHNPAMDALQPAMRSELADLTPQPPTIPIISTTYADLGISLGSGPRFDAEHWATNMRNPVRFHQAIAHAGADHHTFIEISAHPLLTHSISDTLRASYDVDNYLSIGTLQRDAHDTLEFHTNLNTTHTTHPPQTPHPPEPHPVLPTTPWQHTQHWITATSAAYHRPDTHPLLGVGVTDPTNGTRVWESELDPDLLWLADHVIDDLVVLPGAAYAEIALAAATDTFAVEQDQPWMISELDLRQMLHVTPGTVLVTTLTGDEQRCQVEIRTRSGSSGWTTHATATVARAEPLAPLDHEGQRREVTTADLEDQLDPDDLYQRLRGAGQQHGPAFQGIVGLAVTQAGVARAQVRLPASARTGSREFMLHPVMMDIALQTLGATRTATDLAGGQDARQGPSSNSALVVPVRFAGVHVYGDITRGVRAVGSLAAAGDRLVGEVVLTDANGQPLLVVDEVEMAVLGSGSGATELTNRLFMLEWEPAPLEKTAEATGALLLIGDPAAGDPLLPALQSSLRDRITDLELASAADEATLRAAISRTSWDGIVVVCPPRANDESMPDEAQLELARTRTLLVASVVETVTRMGARKSPRLWIVTRGAAQFDAGESVTLAQTGLRGIARVLTFEHSELNTTLVDIEPDGTGSLAALAEELLAGSEADEVALRDGQRYVNRLVPAPTTTSGDLAAEARHQVVNLDSSGASRAAVRLQIDQPGRLDALNVHEVKRGRPQGDQVEVRVVAAGLNFSDVLKAMGVYPGLDGAAPVIGGECVGYVTAIGDEVDGVEVGQRVIAFGPGTFGTHLGTIADLVVPIPDTLADNEAATFGVAYLTAWHSLCEVGRLSPGERVLIHSATGGVGMAAVSIAKMIGARIYTTAGSDAKREMLSRLGVEYVGDSRSVDFADEILELTDGYGVDVVLNSLAGEAIQRGVQILAPGGRFIELGKKDVYADASLGLAALAKSASFSVVDLDLNLKLQPARYRQLLQHILQHVADGKLEVLPVTAFSLHDAADAFRLMASGKHTGKIVISIPQHGSIEAIAAPPPLPLVSRDGGYLIVGGMGGLGFVVARWLAEQGAGLIVLNGRSAPSDEVAAAIAELNASGSRIEVITGDITEPDTAERLVRAVEDAGFRLAGVVHSAMVLADEIVLNMTDSAARRVFAPKVTGSWRLHVATAARDVDWWLTFSSAAALLGTPGQGAYAAANSWVDGLVAHRRSAGLPAVGINWGPWADVGRAQFFKDLGVEMINAEQGLAAMQAVLTADRGRTGVFSLDARQWFQSFPAVAGSSLFAKLHDSAARKSGQRRGGGAIRAQLDALDAAERPGHLASAIADEIRAVLRSGDPIDHHRPLETLGLDSLMGLELRNRLEASLGITLPVALVWAYPTISDLATALCERMDYATPAAAQEISDTEPELSDEEMDLLADLVDASELEAATRGES