Fig. 4
From: GyrI-like proteins catalyze cyclopropanoid hydrolysis to confer cellular protection

CCHs can protect E. coli against the potent DNA-alkylating agent YTM. Four selected CCH proteins include YtkR7, lin2189, ETI84332.1, and MA1133, which cover from both bacteria and archaea (from diverse environments, including soil and the human microbiota)