>sp|Q9BQ65-3|USB1_HUMAN Isoform 3 of U6 snRNA phosphodiesterase 1 OS=Homo sapiens OX=9606 GN=USB1 MSAAPLVGYSSSGSEDESEDGMRTRPGDGSHRRGQSPLPRQRFPVPDSVLNMFPGTEEGP EDDSTKHGGRVRTFPHERGNWATHVYVPYEAKEEFLDLLDVLLPHAQTYVPRLVRMKVFH LSLSQSVVLRHHWILPFVQALKARMTSFHSPHPGPHCLIGTKDAPVTQEIPKDLGALRQE PGSQTR