PMID- 18223152 OWN - NLM STAT- MEDLINE DCOM- 20080307 LR - 20211020 IS - 1091-6490 (Electronic) IS - 0027-8424 (Print) IS - 0027-8424 (Linking) VI - 105 IP - 5 DP - 2008 Feb 5 TI - A phosphopantetheinylating polyketide synthase producing a linear polyene to initiate enediyne antitumor antibiotic biosynthesis. PG - 1460-5 LID - 10.1073/pnas.0711625105 [doi] AB - The enediynes, unified by their unique molecular architecture and mode of action, represent some of the most potent anticancer drugs ever discovered. The biosynthesis of the enediyne core has been predicted to be initiated by a polyketide synthase (PKS) that is distinct from all known PKSs. Characterization of the enediyne PKS involved in C-1027 (SgcE) and neocarzinostatin (NcsE) biosynthesis has now revealed that (i) the PKSs contain a central acyl carrier protein domain and C-terminal phosphopantetheinyl transferase domain; (ii) the PKSs are functional in heterologous hosts, and coexpression with an enediyne thioesterase gene produces the first isolable compound, 1,3,5,7,9,11,13-pentadecaheptaene, in enediyne core biosynthesis; and (iii) the findings for SgcE and NcsE are likely shared among all nine-membered enediynes, thereby supporting a common mechanism to initiate enediyne biosynthesis. FAU - Zhang, Jian AU - Zhang J AD - Department of Chemistry, Division of Pharmaceutical Sciences, and University of Wisconsin National Cooperative Drug Discovery Group, University of Wisconsin, Madison, WI 53705, USA. FAU - Van Lanen, Steven G AU - Van Lanen SG FAU - Ju, Jianhua AU - Ju J FAU - Liu, Wen AU - Liu W FAU - Dorrestein, Pieter C AU - Dorrestein PC FAU - Li, Wenli AU - Li W FAU - Kelleher, Neil L AU - Kelleher NL FAU - Shen, Ben AU - Shen B LA - eng GR - U19 CA113297/CA/NCI NIH HHS/United States GR - F32 CA105984/CA/NCI NIH HHS/United States GR - GM073323/GM/NIGMS NIH HHS/United States GR - F32 GM073323/GM/NIGMS NIH HHS/United States GR - GM067725/GM/NIGMS NIH HHS/United States GR - CA113297/CA/NCI NIH HHS/United States GR - CA1059845/CA/NCI NIH HHS/United States GR - R01 GM067725/GM/NIGMS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20080125 PL - United States TA - Proc Natl Acad Sci U S A JT - Proceedings of the National Academy of Sciences of the United States of America JID - 7505876 RN - 0 (Acyl Carrier Protein) RN - 0 (Aminoglycosides) RN - 0 (Antibiotics, Antineoplastic) RN - 0 (Enediynes) RN - 0 (Polyenes) RN - 120177-69-7 (C 1027) RN - 19F5HK2737 (Pantothenic Acid) RN - 1SCE5NG3E8 (phosphopantothenic acid) RN - 79956-01-7 (Polyketide Synthases) RN - 9014-02-2 (Zinostatin) SB - IM MH - Acyl Carrier Protein/*chemistry/genetics MH - Amino Acid Sequence MH - Aminoglycosides/biosynthesis/chemistry MH - Antibiotics, Antineoplastic/*biosynthesis MH - Binding Sites MH - Computational Biology MH - Enediynes/chemistry/*metabolism MH - Molecular Sequence Data MH - Pantothenic Acid/analogs & derivatives/chemistry MH - Polyenes/*chemistry MH - Polyketide Synthases/*chemistry/genetics MH - Protein Structure, Tertiary MH - Zinostatin/biosynthesis/chemistry PMC - PMC2234166 COIS- The authors declare no conflict of interest. EDAT- 2008/01/29 09:00 MHDA- 2008/03/08 09:00 PMCR- 2008/08/05 CRDT- 2008/01/29 09:00 PHST- 2008/01/29 09:00 [pubmed] PHST- 2008/03/08 09:00 [medline] PHST- 2008/01/29 09:00 [entrez] PHST- 2008/08/05 00:00 [pmc-release] AID - 0711625105 [pii] AID - 9121 [pii] AID - 10.1073/pnas.0711625105 [doi] PST - ppublish SO - Proc Natl Acad Sci U S A. 2008 Feb 5;105(5):1460-5. doi: 10.1073/pnas.0711625105. Epub 2008 Jan 25.