Trims short 3' overhangs of a variety of RNA species, leaving a one or two nucleotide 3' overhang. Responsible for the end-turnover of tRNA: specifically removes the terminal AMP residue from uncharged tRNA (tRNA-C-C-A). Also appears to be involved in tRNA biosynthesis, especially in strains lacking other exoribonucleases.
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Dephosphorylates several organic phosphate monoesters including 3'- and 5'-nucleotides, 2'-deoxy-5'-nucleotides, pNPP, phenyl phosphate, glycerol 2-phosphate, ribose 5-phosphate, O-phospho-L-amino acids and phytic acid, showing the highest activity with aryl phosphoesters (pNPP, phenyl phosphate and O-phospho-L-tyrosine), and to a lesser extent with 3'- and 5'-nucleotides. No activity toward ATP, phosphodiesters, glycerol-1-phosphate, glucose 1-phosphate, glucose 6- phosphate, NADP, GTP or 3',5'-cAMP, ADP or ATP. Also has a phosphotransferase activity catalyzing the transfer of low-ene [...]
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DNA-dependent ATPase and 5'-3' DNA helicase (PubMed:12748189, PubMed:17416902). Can also unwind DNA-RNA hybrid duplexes. Is active on D-loops and R-loops, and on forked structures . May be involved in recombinational DNA repair and the resumption of replication after DNA damage . The redox cluster is involved in DNA-mediated charge-transport signaling between DNA repair proteins from distinct pathways. DinG cooperates at long-range with endonuclease III, a base excision repair enzyme, using DNA charge transport to redistribute to regions of DNA damage .
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