Hosta

Ribonuclease IX (EC 3.1.26.10, poly(U)- and poly(C)-specific endoribonuclease) is an enzyme.^[1] This enzyme catalyses the following chemical reaction

Endonucleolytic cleavage of poly(U) or poly(C) to fragments terminated by 3'-hydroxy and 5'-phosphate groups

This enzyme acts on poly(U) and poly(C).

References

^ Sideris DC, Fragoulis EG (April 1987). "Purification and characterization of a ribonuclease specific for poly(U) and poly(C) from the larvae of Ceratitis capitata". European Journal of Biochemistry. 164 (2): 309–15. doi:10.1111/j.1432-1033.1987.tb11059.x. PMID 3569265.

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

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)