>sp|Q9BQ65-2|USB1_HUMAN Isoform 2 of U6 snRNA phosphodiesterase 1 OS=Homo sapiens OX=9606 GN=USB1 MSAAPLVGYSSSGSEDESEDGMRTRPGDGSHRRGQSPLPRQRFPVPDSVLNMFPGTEEGP EDDSTKHGGRVRTFPHERGNWATHVYVPYEAKEEFLDLLDVLLPHAQTYVPRLVRMKVFH LSLSQSVVLRHHWILPFVQALKARMTSFHRTFIGLEVTSGHAQFLDLVSEVDRVMEEFNL TTFYQDPSFHLSLAWCVGDARLQLEGQCLQELQAIVDGFEDAEVLLRVHTEQVRCKSGNK FFSMPLK