escherichia coli mutants deficient in dna polymerase i , in dna polymerases i and ii , or in dna polymerase iii can efficiently and completely execute excision-repair and postreplication repair of the uv-damaged dna at 30 degrees c and 43 degrees c when assayed by alkaline sucrose gradients .
C0012890
dna polymerase iii
C0015249
excision-repair