>4XSB_1|Chains A, B|Daunorubicin-doxorubicin polyketide synthase|Streptomyces peucetius (1950) MGSSHHHHHHSSGLVPRGSHMSVPQGAPGDLYVAGCGVWLPPPVTTEQALAAGHCDRRLASSTRMLSVAVADKETPAEMAALAAQTALDRSGVAPAHVDLVLHASLYFQGHHLWAPSSYVQRVAVGNRCPAMEVRQVXNGGMAALELARAYLLAAPDRVAALITTGDRMHPPGFDRWSSDPGTVYADGGTALVLSRQGGFARLRSLVTVSEPVLEGMHRGGHPFGPPSPEEQRAVDLDAHKRAYVAEAGSSFSVARVSAGQEEALTGALEAAGAGLDDISRVVLPHMGWRRLSAAYFNKWHIQPERTTWEFGRRTGHLGGGDPIAGFDHLVGSGRLAPGELCLLVSVGAGFSWSCAVVELLERPSWAAAPAAR