GO_term: GO:0004081   

GO:0004081	Definition	Catalysis of the reaction: P(1),P(4)-bis(5'-guanosyl)tetraphosphate + H2O = GTP + GMP. Also acts on bis(5'-xanthosyl)-tetraphosphate and, more slowly, on bis(5'-adenosyl)-tetraphosphate and bis(5'-uridyl)-tetraphosphate.
		Catalysis of the reaction: P(1),P(4)-bis(5'-nucleosyl)tetraphosphate + H2O = NTP + NMP. Acts on bis(5'-guanosyl)-, bis(5'-xanthosyl)-, bis(5'-adenosyl)- and bis(5'-uridyl)-tetraphosphate.
	Term	bis(5'-nucleosyl)-tetraphosphatase (asymmetrical) activity
	Type	Molecular_function
	Parent	Instance_of	GO:0008796
	Attributes_of	Index (2)

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