3.1.26.1	Endonucleolytic cleavage to a 5'-phosphomonoester	B1 site, i.e. base recognition site for the base at 5'-side of scissile phosphodiester bond, and B2 site, i.e. base recognition site for the base at 3'-side of the scissile bond, identification	654983	
3.1.26.1	Endonucleolytic cleavage to a 5'-phosphomonoester	purine preference with regard to 3'-terminal nucleotides	134332