the patterns ( domain oriented versus a random location ) and amounts of dna excision repair , determined by standard density gradient techniques and sedimentation properties of partially repaired and uv-endonuclease-digested dna in alkaline sucrose gradients , are reported for uv ( 254 nm ) -irradiated nondividing xeroderma pigmentosum complementation group c or a ( xp-c , xp-a ) and normal cells .
C1520168
xp
C0007634
normal cells