Endopeptidase (or Endoproteinase)

Endopeptidases (or endoproteases) are a subclass of proteolytic enzymes that cleave internal peptide bonds within protein chains, rather than removing amino acids from the ends[7]. They are critical to the degradation and processing of proteins in biological systems, and play essential roles in digestion, cell signaling, immune responses, cell cycle control, tissue remodeling, and the activation of other proteins (zymogens)[4][2][3][7]. Examples include trypsin, chymotrypsin, and pepsin, each with distinct substrate specificities[7][6]. Dysregulation of endopeptidase activity is implicated in a range of diseases, making them important therapeutic targets and biomarkers[4].\n\nNote: The term "Endoprotease enzyme" is non-specific—there are hundreds of unique enzymes that fit this category. For structured data as required by biomedical informatics, a specific enzyme name (such as "Trypsin" or "HIV-1 protease") would be necessary for proper annotation[5][7][4].

Other names

EndoproteinaseEndopeptidaseProteolytic enzyme (generic)Proteinase

Competitive inhibition of the active site serine/cysteine/aspartic/metallo group\nAllosteric inhibition\nIrreversible (covalent) inhibition\nZymogen activation blockade