Acid hydrolase

An acid hydrolase is an enzyme that works best at acidic pHs. It is commonly located in lysosomes, which are acidic on the inside. Acid hydrolases may be nucleases, proteases, glycosidases, lipases, phosphatases, sulfatases and phospholipases and make up the approximately 50 degradative enzymes of the lysosome that break apart biological matter.^[1]

Types

Nucleases (P1 from Penicillium citrinum, used in the food industry for taste enhancement or present in Gouda cheese)^[2]
Lipase – e.g. lysosomal acid lipase
Proteases
Glycosidases

↑ Molecular Cell Biology 6ed, Lodish et al.
↑ Okado, N.; Hasegawa, K.; Mizuhashi, F.; Lynch, B. S.; Vo, T. D.; Roberts, A. S. (2016). "Safety evaluation of nuclease P1 from Penicillium citrinum". Food and Chemical Toxicology. 88: 21–31. doi:10.1016/j.fct.2015.12.001. PMID 26686996.

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v t 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)