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Hox genes, a subset of homeobox genes, are a group of related genes that specify regions of the body plan of an embryo along the head-tail axis of animals. Hox proteins encode and specify the characteristics of 'position', ensuring that the correct structures form in the correct places of the body.
There are several subsets of homeotic genes. They include many of the Hox and ParaHox genes that are important for segmentation. [5] Hox genes are found in bilateral animals, including Drosophila (in which they were first discovered) and humans. Hox genes are a subset of the homeobox genes. The Hox genes are often conserved across species, so ...
They are essential metazoan genes that determine the identity of embryonic regions along the anterior-posterior axis. [27] The first vertebrate Hox gene was isolated in Xenopus by Edward De Robertis and colleagues in 1984. [28] The main interest in this set of genes stems from their unique behavior and arrangement in the genome. Hox genes are ...
Hox genes determine where repeating parts, such as the many vertebrae of snakes, will grow in a developing embryo or larva. [9] Pax-6, already mentioned, is a classic toolkit gene. [48] Although other toolkit genes are involved in establishing the plant bodyplan, [49] homeobox genes are also found in plants, implying they are common to all ...
This gene is part of the A cluster on chromosome 7 and encodes a DNA-binding transcription factor which may regulate gene expression, morphogenesis, and cellular differentiation. The homeobox protein Hox-A1 may be involved in the placement of hindbrain segments in the proper location along the anterior-posterior axis during development. [8]
These genes are grouped similarly to the Hox complex found in insects. The mouse has four complexes, HoxA, HoxB, HoxC, and HoxD, each on different chromosomes. Individual genes in each complex correspond to specific members of the Drosophila genome. The mammalian Hox genes can function in Drosophila as partial replacements for the Drosophila ...
Among the most important of the toolkit genes are those of the Hox gene cluster, or complex. Hox genes, transcription factors containing the more broadly distributed homeobox protein-binding DNA motif, function in patterning the body axis. Thus, by combinatorially specifying the identity of particular body regions, Hox genes determine where ...
Homeobox protein Hox-C6 is a protein that in humans is encoded by the HOXC6 gene. [ 5 ] [ 6 ] [ 7 ] Hox-C6 expression is highest in the fallopian tube and ovary. [ 8 ] HoxC6 has been highly expressed in many types of cancers including prostate, breast, and esophageal squamous cell cancer.