Lysyl endopeptidase

Lysyl endopeptidase (EC 3.4.21.50, Achromobacter proteinase I, Achromobacter lyticus alkaline proteinase I, protease I, achromopeptidase, lysyl bond specific proteinase, and caseinase) is an enzyme.^{[1][2][3][4][5][6]} This enzyme catalyses the following chemical reaction

Preferential cleavage: Lys-, including -Lys-Pro-

Lysyl endopeptidase (R)
Identifiers
EC no.	3.4.21.50
CAS no.	123175-82-6
Databases
IntEnz	IntEnz view
BRENDA	BRENDA entry
ExPASy	NiceZyme view
KEGG	KEGG entry
MetaCyc	metabolic pathway
PRIAM	profile
PDB structures	RCSB PDB PDBe PDBsum
Search PMC articles PubMed articles NCBI proteins

This enzyme is isolated from Lysobacter enzymogenes.

It is produced by the human body and by Achromobacter lyticus^[7] that can help break down the protein casein in milk into smaller peptides and amino acids.^[8]