Table 3 Summary of the effects of PARP1 on the recruitment of RECQL4 and BLM at DSB sites.

From: RECQL4 requires PARP1 for recruitment to DNA damage, and PARG dePARylation facilitates its associated role in end joining

Cell line or treatment

Recruitment at DSB site

RECQL4

BLM

PARP1 KO cell line

No recruitment compared with WT cells

Delayed recruitment relative to WT cells

+ PARP1 inhibitor (olaparib)

No recruitment compared with WT cells

Delayed recruitment relative to WT cells