U6 snRNA phosphodiesterase 1

UniProtKB accession:  Q12208

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UniProtKB description:  3'-5' RNA exonuclease that trims the 3' end of oligo(U) tracts of the pre-U6 small nuclear RNA (snRNA) molecule, leading to the formation of a U6 snRNA 3' end-terminated with a 2',3'-cyclic phosphate (PubMed:28887445). In a second step acts as a cyclic phosphodiesterase that hydrolyzes a U6 snRNA 3' end-terminated with a 2',3'-cyclic phosphate to a U6 snRNA 3'-end-terminated with a 3' phosphate (PubMed:28887445, PubMed:22899009). Participates in the U6 snRNA 3' end processing that prevents U6 snRNA degradation (PubMed:28887445, PubMed:23190533, PubMed:22899009). Could be involved in aerobic respiration (PubMed:14690591).