>sp|B7N493|RIBA_ECOLU GTP cyclohydrolase-2 OS=Escherichia coli O17:K52:H18 GN=ribA MQLKRVAEAKLPTPWGDFLMVGFEELATGHDHVALVYGDISGHTPVLARVHSECLTGDAL FSLRCDCGFQLEAALTQIAEEGRGILLYHRQEGRNIGLLNKIRAYALQDQGYDTVEANHQ LGFAADERDFTLCADMFKLLGVNEVRLLTNNPKKVEILTEAGINIVERVPLIVGRNPNNE HYLDTKAEKMGHLLNK