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Transposition of Hoxd genes to a more posterior (5') location within the HoxD complex suggested that colinearity in the expression of these genes was due, in part, to the existence of a silencing mechanism originating at the 5' end of the cluster and exten ...
Homeobox genes located in the 5' part of the HoxA and HoxD complexes are required for proliferation of skeletal progenitor cells of the vertebrate limb. Specific combinations of gene products determine the length of the upper arm (genes belonging to groups ...
Over the past ten years, the discovery and functional characterisation of murine Hox genes has led to a better understanding of some of the molecular mechanisms underlying limb development. It has also shed some light on the potential genetic events which ...
The proper development of digits, in tetrapods, requires the activity of several genes of the HoxA and HoxD homeobox gene complexes. By using a variety of loss-of-function alleles involving the five Hox genes that have been described to affect digit patter ...
We show here that the alpha, beta, and gamma isotypes of peroxisome proliferator-activated receptor (PPAR) are expressed in the mouse epidermis during fetal development and that they disappear progressively from the interfollicular epithelium after birth. ...
Ulnaless (Ul), an X-ray-induced dominant mutation in mice, severely disrupts development of forearms and forelegs. The mutation maps on chromosome 2, tightly linked to the HoxD complex, a cluster of regulatory genes required for proper morphogenesis. In pa ...
During development, vertebrate Hox genes are activated in a temporal and spatial sequence colinear with the position of the genes within their clusters. To investigate the mechanistic basis of this phenomenon, we used the ES cell technology and the loxP/Cr ...
The precise activation, in space and time, of vertebrate Hox genes is an essential requirement for normal morphogenesis. In order to assess for the functional potential of evolutionary conserved Hox regulatory sequences, a phylogenetically conserved bipart ...
Vertebrate 5'-located HoxD genes are expressed in the most caudal part of the digestive tract and their potential functions during gut development have been assessed by gene disruptions. We have inserted reporter lacZ sequences within the Hoxd-12 gene and ...
A phylogenetically conserved transcriptional enhancer necessary for the activation of Hoxd-11 was deleted from the HoxD complex of mice by targeted mutagenesis. While genetic and expression analyses demonstrated the role of this regulatory element in the a ...
