Figure 1

Top panel: RT-PCR analysis of HAND1 gene expression in HMGA1 +/+, +/− and −/− ES cells. The lanes have been loaded from left to right: ES cells +/+, ES cells +/−, ES cells −/−. No RNA (H20, reported as negative control). Bottom panel: RT-PCR analysis of HAND2 gene expression. The samples have been loaded in the same order as in the top panel.