We know that HL-60, Jurkat and MOLT-4 are p53- or mutated. What about MonoMac-6 and MOLT-3? We are involved in the evaluation of DNA repair (adaptive response)
Check out the p53 field on Sciencescape. You might find your answer there. https://sciencescape.org/field/130951347 . You can do an advanced search to look only within the field of p53 research to narrow down your results if you like.