>sp|Q1R7U5|ISPF_ECOUT 2-C-methyl-D-erythritol 2,4-cyclodiphosphate synthase OS=Escherichia coli GN=ispF MRIGHGFDVHAFGGEGPIIIGGVRIPYEKGLLAHSDGDVALHALTDALLGAAALGDIGKL FPDTDPTFKGADSRELLREAWRRIQAKGYALGNVDVTIIAQAPRMLPHIPQMRVFIAEDL GCHMDDVNVKATTTEKLGFTGRGEGIACEAVALLIKATK