Hosta

Nodavirus endopeptidase (EC 3.4.23.44, Black Beetle virus endopeptidase, Flock House virus endopeptidase) is an enzyme.^[1]^[2] This enzyme catalyses the following chemical reaction

Hydrolysis of an asparaginyl bond involved in the maturation of the structural protein of the virus, typically -Asn-Ala- or -Asn-Phe-

The enzyme is coded by several nodaviruses that are insect pathogens.

References

^ Zlotnick A, Reddy VS, Dasgupta R, Schneemann A, Ray WJ, Rueckert RR, Johnson JE (May 1994). "Capsid assembly in a family of animal viruses primes an autoproteolytic maturation that depends on a single aspartic acid residue". The Journal of Biological Chemistry. 269 (18): 13680–4. PMID 8175803.
^ Johnson JE, Schneemann A (1998). "Nodavirus endopeptidase". In Barrett AJ, Rawlings ND, Woessner JF (eds.). Handbook of Proteolytic Enzymes. London: Handbook of Proteolytic Enzymes. pp. 964–967.

Nodavirus+endopeptidase at the U.S. National Library of Medicine Medical Subject Headings (MeSH)

Proteases: aspartate proteases (EC 3.4.23)
Vertebrate	Pepsin Chymosin Renin Signal peptide peptidase Beta secretase 1 2
Pathogenic	Plasmepsin HIV-1 protease
Plant	Nepenthesin
Cathepsin	D E

Enzymes
Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Diffusion-limited enzyme Cofactor Enzyme catalysis
Regulation	Allosteric regulation Cooperativity Enzyme inhibitor Enzyme activator
Classification	EC number Enzyme superfamily Enzyme family List of enzymes
Kinetics	Enzyme kinetics Eadie–Hofstee diagram Hanes–Woolf plot Lineweaver–Burk plot Michaelis–Menten kinetics
Types	EC1 Oxidoreductases (list) EC2 Transferases (list) EC3 Hydrolases (list) EC4 Lyases (list) EC5 Isomerases (list) EC6 Ligases (list) EC7 Translocases (list)