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. 2014 Apr 30;15(1):323. doi: 10.1186/1471-2164-15-323

Figure 4.

Figure 4

A representative example of PKS-I gene cluster (#46 in Figure  2 ) (A), and its putative product (B). The cluster is specific to N. asteroides NBRC 15531T. A. Domain organization. LM, loading module; m1 – m11, modules; KS, ketosynthase; AT, acyltransferase; ACP, acyl carrier protein; DH, dehydratase; KR, ketoreductase; ER, enoyl-reductase domains. Gray ’DH” domains are probably inactive. B. Chemical structure of intermediate polyketide chain predicted from the gene cluster #46 based on assembly line rule [46, 49].