Flow cytometric analysis of Jurkat cells, untreated (blue) or etoposide-treated (green), using Cleaved PARP (Asp214) (D64E10) XP® Rabbit mAb.
Western blot analysis of extracts from control HEK293 cells (lane 1) or PARP knockout HEK293 cells (lane 2) using PARP (46D11) Rabbit mAb #9532 (upper) or β-actin (13E5) Rabbit mAb #4970 (lower). The absence of signal in the PARP knockout HEK293 cells confirms the specificity of the antibody for PARP.
Flow cytometric analysis of Jurkat cells using PARP (46D11) Rabbit mAb (solid line) compared to concentration-matched Rabbit (DA1E) mAb IgG XP® Isotype Control #3900 (dashed line). Anti-rabbit IgG (H+L), F(ab')2 Fragment (Alexa Fluor® 488 Conjugate) #4412 was used as a secondary antibody.
Confocal immunofluorescent analysis of HeLa cells, untreated (left) or treated with Staurosporine #9953 (right), using Cleaved PARP (Asp214) (D64E10) XP® Rabbit mAb (green). Actin filament were labeled with DY-554 phalloidin. Blue pseudocolor = DRAQ5® #4084 (fluorescent DNA dye).
Confocal immunofluorescent analysis of untreated HeLa cells labeled with PARP (46D11) Rabbit mAb (green). Actin filaments have been labeled with Alexa Fluor® 555 phalloidin (red).
Immunohistochemical analysis of paraffin-embedded human tonsil using Cleaved PARP (Asp214) (D64E10) XP® Rabbit mAb.
Western blot analysis of extracts from HeLa cells, untreated or treated with Staurosporine #9953 (1 μM, 3 hr), Jurkat cells, untreated or etoposide-treated (25 μM, overnight), and THP-1 cells, untreated or cycloheximide-treated (CHX, 10 μg/ml, overnight) followed by treatment with TNF-α #8902 (20 ng/ml, 4 hr), using Cleaved PARP (Asp214) (D64E10) XP® Rabbit mAb (upper), or total PARP Antibody #9542 (lower).
Western blot analysis of extracts from THP-1 cells, untreated or treated with TNF-α and cycloheximide as well as control extracts from SW620 and A20 cell lines, using PARP (46D11) Rabbit mAb.
PhosphoPlus® Duets from Cell Signaling Technology (CST) provide a means to assess protein activation status. Each Duet contains an activation-state and total protein antibody to your target of interest. These antibodies have been selected from CST's product offering based upon superior performance in specified applications.
PARP, a 116 kDa nuclear poly (ADP-ribose) polymerase, appears to be involved in DNA repair in response to environmental stress (1). This protein can be cleaved by many ICE-like caspases in vitro (2,3) and is one of the main cleavage targets of caspase-3 in vivo (4,5). In human PARP, the cleavage occurs between Asp214 and Gly215, which separates the PARP amino-terminal DNA binding domain (24 kDa) from the carboxy-terminal catalytic domain (89 kDa) (2,4). PARP helps cells to maintain their viability; cleavage of PARP facilitates cellular disassembly and serves as a marker of cells undergoing apoptosis (6).
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