Vol. 203, No. 1, January 23, 2006. Pages 41–46.

The authors regret that an error regarding the siRNA sequence for APOBEC3G appeared in the second sentence under the subheading “siRNA inhibition of APOBEC3G.” The sequence listed for APOBEC3G was actually the sequence for APOBEC3A. The correct sequence for APOBEC3G appears below: