Ribonuclease U2 (, ''purine specific endoribonuclease'', ''ribonuclease U3'', ''RNase U3'', ''RNase U2'', ''purine-specific ribonuclease'', ''purine-specific RNase'', ''Pleospora RNase'', ''Trichoderma koningi RNase III'', ''ribonuclease (purine)'') is an

enzyme An enzyme () is a protein that acts as a biological catalyst by accelerating chemical reactions. The molecules upon which enzymes may act are called substrate (chemistry), substrates, and the enzyme converts the substrates into different mol ...

. This enzyme catalyses the following

chemical reaction A chemical reaction is a process that leads to the chemistry, chemical transformation of one set of chemical substances to another. When chemical reactions occur, the atoms are rearranged and the reaction is accompanied by an Gibbs free energy, ...

: Two-stage endonucleolytic cleavage to nucleoside 3'-phosphates and 3'-phosphooligonucleotides ending in Ap or Gp with 2',3'-cyclic phosphate intermediates

References

External links

* {{Enzymes EC 3.1.27