REPAIR OF PSORALEN PLUS NEAR ULTRAVIOLET LIGHT DAMAGE IN BACTERIOPHAGE T4

Abstract
Abstract— The sensitivity of bacteriophage T4 to psoralen plus NUV was investigated using a series of T4 repair defective mutants. The recombinational repair deficient mutants T4x, T4y and T4w were more sensitive than wild‐type; while T4v, an endonuclease V mutant, exhibited the same sensitivity as wild‐type. However, endonuclease V appears to initiate abortive repair in the absence of the x and presumably y gene products. Host repair gene products were shown not to be involved in the repair of psoralen plus NUV damages in T4.