Xenopus laevis
In molecular biology, Endoribonuclease XendoU refers to a protein domain. This particular entry represents endoribonucleases involved in RNA biosynthesis which has been named XendoU in "Xenopus laevis" (African clawed frog). This protein domain belongs to a family of evolutionarily related proteins. XendoU is a U-specific metal dependent enzyme that produces products with a 2'-3' cyclic phosphate termini.