PARP-1, Abcam, ab32138

Our team has carried out deep research in the published scientific literature to identify papers and reports using antibodies directed against human Poly (ADP-ribose) polymerase-1 (PARP-1) and followed up by extraction and evaluation of the available data to assess its performance according to pAbmAbs rating criteria.

YCharOS is here conducting a large head-to-head study comparing 25 commercial research antibodies against human Poly (ADP-ribose) polymerase-1 (PARP-1).

The collection of antibodies was tested using HAP1 WT and PARP1 KO cells in the applications WB (WT and KO cell lysates/30 µg protein), IP (WT cell lysate), IF (WT and KO cells) and flow cytometry (KO and WT cells) according to YCharOS standard protocols (see reference).

In WB (1:5000 ab dilution) ab32138 detected a band of appr. 120 kDa in WT cell lysate with no corresponding band observed in KO cell lysate. No band was detected following IP (2 µg Ab used). In IF (1:50 ab dilution), a more intense staining was observed in WT cell whereas KO cells exhibited little background staining. Flow cytometry using ab32138 (1:1050 ab dilution) showed a marked increase in fluorescence intensity in WT cells compared with KO cells. The KO population overlapped closely with the secondary-antibody control, suggesting minimal non-specific staining and strong target-dependent binding.