Purpose
Lidless variant of MHETase from Ideonella sakaiensis 201-F6 (Genbank GAP38911.1) replacing Gly251:Thr472 of MHETase with the 7-residue loop (Trp185:Phe191, PETase numbering) of PETase , codon optimized for expression in E. coli K12, with C-terminal His tag.