which
select,activate,andcoupleaminoacidsdrawnfromapoolof
nearly 500potentialbuildingblocks(Walsh etal.,2013). Five
geneclusterinvolvedinnon-ribosomalsynthesisofcyclicLPand
the iron-siderophorebacillibactinwereidentifiedinthegenome
of FZB42(Table1). Threeoftherespectivegeneclusterswere
assignedforsynthesisofsurfactin,fengycin,andbacillomycin
D. BacillomycinDwasidentifiedasbeingthemostpowerful
antifungal metabolite in vitro producedbyFZB42(Figure2).
TheheptapeptidemoietyofbacillomycinD,belongingto
the iturinfamilyofcyclicLP,isattachedtoa β-amino fatty
acidchainofvariablelength(C14–C17). Thepeptidemoiety
of theheptapeptidesurfactinislinkedtoa β-hydroxylfatty
acid(C12–C16),whilstthefengycindecapeptidesarelinkedto
a β–hydroxylfattyacidchain(C 14–C18).Theirsynthesisis
accomplishedbymultimodularpeptidesynthetasesanddepends
on afunctionalphospho-pantheinyltransferase(Sfp)which
transfers4- phosphopantetheinefromcoenzymeAtothecarrier
proteinsduringnon-ribosomalsynthesis
ซึ่งเลือก andcoupleaminoacidsdrawnfromapoolof เปิดใช้งานเกือบ 500potentialbuildingblocks (วอลช์ etal., 2013) ห้าgeneclusterinvolvedinnon-ribosomalsynthesisofcyclicLPandเหล็ก-siderophorebacillibactinwereidentifiedinthegenomeของ FZB42(Table1) Threeoftherespectivegeneclusterswereassignedforsynthesisofsurfactin, fengycin, andbacillomycinD. BacillomycinDwasidentifiedasbeingthemostpowerfulmetabolite ที่ต้านเชื้อราในหลอดทดลอง producedbyFZB42(Figure2)TheheptapeptidemoietyofbacillomycinD, belongingtoiturinfamilyofcyclicLP, isattachedtoa β-อะมิโนไขมันacidchainofvariablelength(C14–C17) Thepeptidemoietyของ theheptapeptidesurfactinislinkedtoa β-hydroxylfattyกรด (C12 – C16), whilstthefengycindecapeptidesarelinkedtoมีβ – hydroxylfattyacidchain(C 14–C18) Theirsynthesisisaccomplishedbymultimodularpeptidesynthetasesanddependsใน afunctionalphospho-pantheinyltransferase (Sfp) ซึ่งtransfers4 - phosphopantetheinefromcoenzymeAtothecarrierproteinsduringnon-ribosomalsynthesis
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