Regulatory modules in the developing heart.
Fragments of regulatory DNA of cardiac genes drive reporter gene expression in sometimes unexpected subdomains of the heart. These patterns have revealed that the regulatory DNA of genes consists of distinct subfragments (regulatory modules) that are active in different regions of the developing heart. In this review we give an overview of the activity of regulatory modules in vivo. Furthermore, we investigated the relationship between the activity domains of the regulatory modules, the building blocks of the heart and the developmental patterning of the myocardium. Most of the regulatory modules show a domain of activity broader than the morphological boundary of a cardiac compartment and seem to respond to a patterning program along the antero-posterior axis.
Habets
Petra E M H
PE
Experimental and Molecular Cardiology Group, Department of Anatomy and Embryology, Academic Medical Center L2-255, University of Amsterdam, Meibergdreef 15, 1105 AZ, Amsterdam, The Netherlands.
Moorman
Antoon F M
AF
Christoffels
Vincent M
VM
D000818:Animals; D005075:Biological Evolution; D005786:Gene Expression Regulation; D006321:Heart / Q000196:embryology*; D006801:Humans; D008322:Mammals / Q000196:embryology*; D051379:Mice; D008822:Mice, Transgenic; D009024:Morphogenesis / Q000235:genetics