>sp|P39890|TCMI_STRGA Tetracenomycin F2 cyclase OS=Streptomyces glaucescens GN=tcmI MAYRALMVLRMDPADAEHVAAAFAEHDTTELPLEIGVRRRVLFRFHDLYMHLIEADDDIM ERLYQARSHPLFQEVNERVGQYLTPYAQDWEELKDSKAEVFYSWTAPDS