Nat. Genet. 35, 219?220 (2003).

In the Supplementary Information initially published online, the sequence of the Alu construct in Supplementary Figure 1 was incorrect. A corrected version of Supplementary Figure 1 appears below.

Figure 1: Etoposide exposure is associated with Alu transcription and retrotransposition.
figure 1

(a) Transcriptional induction determined by real-time RT-PCR. Shown are relative Alu expression levels in FL5.xL.Alu cells, untreated or after 96 h of exposure to vincristine or etoposide. Cells lacking pREP4-Alu (FL5.xL) serve as a negative control. Error bars show s.d. (b) Panhandle PCR clone frequency. The number of clones of each category is indicated. (c) Insertion-site characteristics of panhandle PCR clones. Mouse chromosomal integration sites are indicated. Putative LINE ORF2p consensus sites are underlined and bold; Alu sequence is in italics.

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