>sp|Q05368|CYPC_STRHA Putative polyketide cyclase OS=Streptomyces halstedii GN=sch4 MAGHTENEIVIAAPLDLVWDMTNDVENWPRLFSEYASAEILEREGDRVRFRLTMHPDDEG RVWSWVSERVADRASLTVRAHRVETGPFQFMDIQWVYEQTPEGVLMRWI