PRPF19 or pre-mRNA-processing factor 19 is the human homolog of yeast Pso4. PRPF19 is a gene essential for cell survival, DNA repair and association with terminal deoxynucleotidyl transferase (1). PRPF19 forms a stable complex with SETMAR (Metnase) which is a SET and transposase fusion protein in humans and plays a positive role in double-strand break (DSB) repair. PRPF19 mediates association of SETMAR with sites of DNA damage (2). SNEV is an orthologue of PRPF19 and is an evolutionarily conserved splicing factor whose oligomerization is necessary for spliceosome assembly.
PSO4; SNEV; PRP19; UBOX4; hPSO4; NMP200
1. Mahajan, K. N. et.al: Role of human Pso4 in mammalian DNA repair and association with terminal deoxynucleotidyl transferase. Proc. Nat. Acad. Sci. 100: 10746-10751, 2003.
2. Beck, B. D. et.al: Human Pso4 is a Metnase (SETMAR)-binding partner that regulates Metnase function in DNA repair. J. Biol. Chem. 283: 9023-9030, 2008.
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