Files in this Data Supplement:

• Supplemental file 1 - Fig. S1 (dL is mutagenic and can lead to DNA degradation).
  Zipped EPS file, 1.9MB.
• Supplemental file 2 - Fig. S2 (Identity of Pol γ-dL protein DNA cross-link).
  Zipped EPS file, 438K.
• Supplemental file 3 - Fig. S3 (dL repair detected in mouse liver mitochondrial extract).
  Zipped EPS file, 1.3MB.
• Supplemental file 4 - Fig. S4 (Mitochondrial localization of FEN1 in HeLa cells).
  Zipped EPS file, 4.7MB.
• Supplemental file 5 - Legends to Fig. S1 to S4.
  MS Word document, 24K.