This is the catalytic region of aspzincins, a group of lysine-specific metallo-endopeptidases in the MEROPS:M35 family. They exhibit the following active-site architecture. The active site is composed of two helices and a loop region and includes the ...
This is the catalytic region of aspzincins, a group of lysine-specific metallo-endopeptidases in the MEROPS:M35 family. They exhibit the following active-site architecture. The active site is composed of two helices and a loop region and includes the HExxH and GTxDxxYG motifs. In UniProt:P81054, His117, His121 and Asp130 coordinate to the catalytic zinc ligands. An electrostatically negative region composed of Asp154 and Glu157 attracts a positively charged Lys side chain of a substrate in a specific manner [4].
Metalloendopeptidases such as the zinc endopeptidases often have the potential for tissue destruction or pathogenic bacterial infections and so are targets for drug design.
Defined by 5 residues: HIS:A-117GLU:A-118HIS:A-121ASP:A-130TYR:A-133