Biology:Amphinase

Amphinase
	Crystallographic structure of amphinase.
Identifiers
Organism	Rana pipiens
Symbol	n/a
PDB	2P7S (ECOD)
UniProt	P85073
Other data
EC number	3.1.27
Search for
Structures	Swiss-model
Domains	InterPro

Amphinase is a ribonuclease enzyme found in the oocytes of the Northern leopard frog (Rana pipiens). Amphinase is a member of the pancreatic ribonuclease protein superfamily and degrades long RNA substrates.^[2] Along with ranpirnase, another leopard frog ribonuclease, amphinase has been studied as a potential cancer therapy due to its unusual mechanism of cytotoxicity tested against tumor cells.^[3]

References

↑ "Enzymatic and structural characterisation of amphinase, a novel cytotoxic ribonuclease from Rana pipiens oocytes". Journal of Molecular Biology 371 (1): 93–111. August 2007. doi:10.1016/j.jmb.2007.04.071. PMID 17560606.
↑ "Enzymatic and structural characterisation of amphinase, a novel cytotoxic ribonuclease from Rana pipiens oocytes". Journal of Molecular Biology 371 (1): 93–111. August 2007. doi:10.1016/j.jmb.2007.04.071. PMID 17560606.
↑ "Onconase and amphinase, the antitumor ribonucleases from Rana pipiens oocytes". Current Pharmaceutical Biotechnology 9 (3): 215–25. June 2008. doi:10.2174/138920108784567245. PMID 18673287.

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v t e Enzymes
Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Catalytically perfect enzyme Coenzyme 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)