>sp|B6I6D6|ISPF_ECOSE 2-C-methyl-D-erythritol 2,4-cyclodiphosphate synthase OS=Escherichia coli GN=ispF MRIGHGFDVHAFGGEGPIIIGGVRIPYEKGLLAHSDGDVALHALTDALLGAAALGDIGKL FPDTDPAFKGADSRELLREAWRRIQAKGYTLGNVDVTIIAQAPKMLPHIPQMRVFIAEDL GCHMDDVNVKATTTEKLGFTGRGEGIACEAVALLIKATK