Literature summary for 4.6.1.18 extracted from

Ahmad, F.; Bigelow, C.C.
The denaturation of ribonuclease A by combinations of urea and salt denaturants (1979), J. Mol. Biol., 131, 607-617.

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General Stability

General Stability	Organism
LiCl, denaturation	Bos taurus
LiClO4, denaturation	Bos taurus
urea, denaturation, urea interferes with interhydrophobic interactions by affecting the water molecules	Bos taurus
urea, low concentrations of salts, CaCl2, LiClO4 or LiCl, stabilize against urea denaturation at higher concentration they destabilize	Bos taurus

Natural Substrates/ Products (Substrates)

Natural Substrates	Organism	Comment (Nat. Sub.)	Natural Products	Comment (Nat. Pro.)	Rev.	Reac.
RNA + H2O	Bos taurus	endonucleolytic cleavage to 3'-phosphomononucleotides and 3'-phosphooligonucleotides ending in Cp or Up with 2',3'-cyclic phosphate intermediates, e.g. tRNA, 18S and 28S rRNA, yeast RNA,4.5S RNA	3'-phosphomononucleotides + 3'-phosphooligonucleotides	-	?

Organism

Organism	UniProt	Comment	Textmining
Bos taurus	-	-	-

Substrates and Products (Substrate)

Substrates	Comment Substrates	Organism	Products	Comment (Products)	Rev.	Reac.
cyclic 2',3'-nucleoside monophosphate + H2O	second step of hydrolysis is irreversible	Bos taurus	3'-phosphomononucleotides	-	ir
RNA + H2O	endonucleolytic cleavage to 3'-phosphomononucleotides and 3'-phosphooligonucleotides ending in Cp or Up with 2',3'-cyclic phosphate intermediates, e.g. tRNA, 18S and 28S rRNA, yeast RNA,4.5S RNA	Bos taurus	3'-phosphomononucleotides + 3'-phosphooligonucleotides	-	?
RNA + H2O	first step of hydrolysis is reversible	Bos taurus	cyclic 2',3'-nucleoside monophosphate	-	r

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Release 2023.1 (January 2023)