Phospho-Stat3 (Tyr705) (D3A7) XP® Rabbit mAb #9145, Phospho-p44/42 MAPK (Erk1/2) (Thr202/Tyr204) (D13.14.4E) XP® Rabbit mAb #4370, and Jak2 (D2E12) XP® Rabbit mAb #3230 exemplify the consistent performance of exhibited by every XP® monoclonal antibodies from lot to lot. Each new lot is compared to the previous lot before it becomes available to our customers, which ensures the greatest possible consistency in research results.