The protein endolysin belongs to which group of chemical substances

Endolysin or murein hydrolases, also called lysins are hydrolytic enzymes that are created by bacteriophages to split the host's cell wall throughout the final phase of the lytic cycle.

Endolysin with amidase functioning that deteriorates host peptidoglycans and plays a role in the holin and spanin proteins in the sequential occurrences which results to the programmed host cell lysis releasing the mature viral fragments. The endolysin can reach the periplasm and breaking down the peptidoglycan layer as soon as the holin has permeabilized the host cell membrane. Likewise, not all bacteriophages synthesize lysins, some small single-stranded DNA and RNA phages create membrane proteins that triggers the host's autolytic mechanisms.