>4q94_C mol:protein length:21 rpb1-ctd XSPSYSPTSPSYSPTSPSYSX >4q94_A mol:protein length:135 Regulation of nuclear pre-mRNA domain-containing protein 1B GSSFSESALEKKLSELSNSQHSVQTLSLWLIHHRKHAGPIVSVWHRELRKAKSNRKLTF LYLANDVIQNSKRKGPEFTREFESVLVDAFSHVAREADEGCKKPLERLLNIWQERSVYG GEFIQQLKLSMEDSKSP >4q94_D mol:protein length:21 rpb1-ctd XSPSYSPTSPSYSPTSPSYSX >4q94_B mol:protein length:135 Regulation of nuclear pre-mRNA domain-containing protein 1B GSSFSESALEKKLSELSNSQHSVQTLSLWLIHHRKHAGPIVSVWHRELRKAKSNRKLTF LYLANDVIQNSKRKGPEFTREFESVLVDAFSHVAREADEGCKKPLERLLNIWQERSVYG GEFIQQLKLSMEDSKSP >4q94_D mol:protein length:21 rpb1-ctd XSPSYSPTSPSYSPTSPSYSX