An endogenous retrovirus causes limb malformation
Activation of a long terminal repeat retrotransposon inserted upstream of the Fgf8 gene produces viral-like particles that cause limb malformation in mice.
Activation of a long terminal repeat retrotransposon inserted upstream of the Fgf8 gene produces viral-like particles that cause limb malformation in mice.
We show that alternative DNA structures, called G-quadruplexes, behave as elements of eukaryotic promoters. Our data suggest that they function to support intrinsic nucleosome exclusion and to facilitate transcriptional pause release by RNA polymerase II.