. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "rpb2_human"^^ . "RNA polymerase II subunit B2"^^ . "DNA-directed RNA polymerase II subunit B"^^ . "DNA-directed RNA polymerase II 140 kDa polypeptide"^^ . "RNA polymerase II subunit 2"^^ . "POLR2B"^^ . . "DNA-directed RNA polymerase II subunit RPB2"^^ .