PARP-1, MilliporeSigma, ZRB1544

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 (1:500 ab dilution) ZRB1544 detected a band of appr. 120 kDa in WT cell lysate with no corresponding band observed in KO cell lysate. A band was detected following IP (2 µg Ab used), this band was more intense compared to band in input extract (6% of starting material). A band was also detected in immunodepleted extract (6% of total unbound fraction), showing that the antibody does not completely deplete the antigen from cell lysate. In IF (1:30 ab dilution), comparable staining was observed in KO and WT cells.