RPB2 (POLR2B) (NM_000938) Human Untagged Clone SC119548 CNY 8,184.00 现货 POLR2B (untagged)-Human polymerase (RNA) II (DNA directed) polypeptide B, 140kDa (POLR2B) Type Human Untagged Clone Tag Tag Free Vector pCMV6-XL5