Streptomyces avermitilis modular polyketide synthase
PKIIGFPSQS VWASNQELVS MATPLRGTRD VWSLMLPGFV TGQPVAADVD AAAEYALRLI EELVDGEPFV LAGRSSGGRI AHEVTSRLED RGLAPRGLVL IDSYMAGYDA TSYIVPVMES KAVELEKDFG QMTGTRLTAM AAYFGMFEHW QPKEIATPTL LVRASECYGI EPGEVQPPAE QWQAAWPLPH EAIDVPGNHY TMLEGNGDVT AAAVHEWLTR HEA