Poly U

**Definition:** A group of uridine ribonucleotides in which the phosphate residues of each uridine ribonucleotide act as bridges in forming diester linkages between the ribose moieties.

**Tree numbers:** - D13.695.578.550.750

**Synonyms:** - Polyuridylic Acids - Uracil Polynucleotides - Poly(rU)