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. 2009 Nov 6;1(2):74–99. doi: 10.3390/toxins1020074

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© 2009 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland

This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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Schematic representation of the PKS-NRPS involved in synthesis of cAATrp. The different domains are shown in the arrow (KS, ketosynthase; AT, acyl transferase; DH, dehydratase; MeT, methyltransferase; ER, enoyl reductase; KR, ketoreductase; ACP, acyl carrier protein attachment site; C, condensation domain; A, adenylation domain; T, thiolation domain; R, releasing domain). Brackets indicate the domains are defective. The numbers below the arrow indicate approximation amino acid distance from the N-terminus for the domains.