Anti-Phospho-POLR2A (Thr4) Polyclonal Antibody 2RPOL2, RPO2, RpIILS, RPBh1, RPB1, RNA-directed RNA polymerase II subunit RPB1, RNA polymerase II subunit B1, p-POLR2A (Thr4), p-POLR2A (T4), Polymerase (RNA) II (DNA directed) polypeptide A 220kDa, POLRA, POLR2A (p-Thr4), POLR2A (p-T4), Polr2a, POLR2, Phospho-POLR2A (T4), hsRPB1, hRPB220, DNA-directed RNA polymerase III largest subunit, DNA-directed RNA polymerase II subunit RPB1, DNA-directed RNA polymerase II largest subunit RNA polymerase II 220 kd subunit, DNA directed RNA polymerase II A