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Fraction VII contains a PKS. (A) Polyacrylamide (7.5%) gel of fraction VII stained with Coomassie blue. The stars indicate protein bands analyzed by MALDI-TOF MS. (B) Predicted organization of the 7,831-amino-acid Ta-1 PKS. The conserved domains are as follows: C domain, A domain, ACP, KS/AT, and KR. The domains are organized in modules, which are basic units responsible for incorporation of extender units. The scale bar indicates the amino acid numbers in the primary structure of Ta-1.
