Cell Signaling Technology
XP® Monoclonal Antibody

eXceptional Reproducibility of XP® Monoclonal Antibodies

eXceptional Reproducibility of XP® Monoclonal Antibodies

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 consistent performance of XP® monoclonal antibodies from lot to lot. Each new lot is always compared to the previous lot in all recommended applications before it becomes available to our customers to ensure the greatest possible consistency in research results.

Phospho-Stat3 (Tyr705) (D3A7) XP® Rabbit mAb #9145

Western blot analysis of HeLa cells

Figure 1. Western blot analysis of HeLa cells, untreated or treated with IFN-α comparing lots 1, 2, 3, and 8 of #9145, showing that signal remains consistent from lot to lot. Note: Recommended dilution for western blot was changed to 1:2000 with release of lot 3.

Phospho-p44/42 MAPK (Erk1/2) (Thr202/Tyr204) (D13.14.4E) XP® Rabbit mAb #4370

IHC analysis of adjacent sections of paraffin-embedded human colon carcinoma

Figure 2. IHC analysis of adjacent sections of paraffin-embedded human colon carcinoma using #4370 lot 7 at a 1:400 dilution (upper left), #4370 lot 9 at a 1:200 dilution (upper right), #4370 lot 9 at a 1:400 dilution (lower left), and #4370 lot 9 at a 1:800 dilution (lower right). The recommended dilution for lot 9 remained 1:400.

Jak2 (D2E12) XP® Rabbit mAb #3230

Western blot analysis of HeLa cells, untreated or treated with IFN-a.

Figure 3. Western blot analysis of K562 cells comparing lots 1, 3, and 5 of #3230, showing that signal remains consistent from lot to lot.

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