Eksoribonukleaza II (EC3.1.13.1, ribonukleaza II, ribonukleaza Q, BN ribonukleaza, Escherichia coli ekso-RNaza II, RNaza II, eksoribonukleaza, 5'-eksoribonukleaza) je enzim sa sistematskim imenom '.[1][2][3][4] Ovaj enzim katalizuje sledeću hemijsku reakciju
Eksonukleolitičko razlaganje u 3'- ka 5'- smeru čime se formiraju nukleozid 5'-fosfati
↑Nossal, N.G. and Singer, M. (1968). "The processive degradation of individual polyribonucleotide chains. I. Escherichia coli ribonuclease II". J. Biol. Chem.243: 913–922. PMID4867942.
↑Schmidt, F.J. and McClain, W.H. (1978). "An Escherichia coli ribonuclease which removes an extra nucleotide from a biosynthetic intermediate of bacteriophage T4 proline transfer RNA". Nucleic Acids Res.5: 4129–4139. PMID364422.
↑Shimura, Y., Sakano, H. and Nagawa, F. (1978). "Specific ribonucleases involved in processing of tRNA precursors of Escherichia coli. Partial purification and some properties". Eur. J. Biochem.86: 267–281. PMID350582.
↑Sporn, M.B., Lazarus, H.M. Smith, J.M. and Henderson, W.R. (1969). "Studies on nuclear exoribonucleases. 3. Isolation and properties of the enzyme from normal and malignant tissues of the mouse". Biochemistry8: 1698–1706. PMID5805304.