dna of the transforming , nondefective epstein-barr virus ( ebv ) strain m-aba , which is derived from nasopharyngeal carcinoma cells , was cloned as large overlapping pieces into the cosmid phc79 . the termini were cloned from closed circular virus dna molecules out of m-aba cell dna in phage lambda l47 . the large overlapping clones were used to prepare a library of subclones with inserts of 1-15 kb .
C0012925
circular
C0012854
dna