Homeobox
A short stretch of nucleotides (DNA or RNA) with an almost identical base sequence in all genes that contain that stretch. Homeoboxes occur in many organisms from fruit flies to human beings and appear to determine when particular groups of genes are expressed during development.
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A highly conserved DNA sequence of about 180 base pairs near the 3′ end of specific homeotic genes; it encodes a DNA-binding domain that allows the h. proteins to bind to and regulate gene expression in development. SYN: homeodomain.

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ho·meo·box 'hō-mē-ō-.bäks n a short usu. highly conserved DNA sequence in various genes and esp. homeotic genes that encodes a homeodomain

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ho·meo·box (hoґme-o-boks″) any of a class of highly conserved DNA sequences, approximately 180 base pairs long, encoding a protein domain involved in binding to DNA; named for its initial discovery as a Drosophila locus important in homeotic mutation, but it also occurs in many other species, including humans, and is usually found in genes that control development.

Medical dictionary. 2011.

Look at other dictionaries:

  • homeobox — homeobox. См. гомеобокс. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • homeobox — [hō′mē ō bäks΄] n. any of a group of DNA sequences found in certain genes and involved in determining the development of specific organs, tissues, etc. of animal embryos * * * …   Universalium

  • homeobox — [hō′mē ō bäks΄] n. any of a group of DNA sequences found in certain genes and involved in determining the development of specific organs, tissues, etc. of animal embryos …   English World dictionary

  • Homeobox — A homeobox is a DNA sequence found within genes that are involved in the regulation of patterns of development (morphogenesis) in animals, fungi and plants. Genes that have a homeobox are called homeobox genes and form the homeobox gene… …   Wikipedia

  • Homeobox — Un homeobox es una secuencia de ADN que forma parte de genes implicados en la regulación del desarrollo (morfogénesis) de los animales. Los genes que tiene un homeobox se llaman genes homeóticos y forman la familia de genes homeóticos HOM/ HOX.… …   Wikipedia Español

  • Homeobox — Un homeobox es una secuencia de ADN que forma parte de genes implicados en la regulación del desarrollo (morfogénesis) de los anímales. Los genes que tiene un homeobox se llaman genes homeobox y forman la familia de genes homeobox. Fueron… …   Enciclopedia Universal

  • homeobox — (= homoeobox) Conserved DNA sequence originally detected by DNA DNA hybridization in many of the genes that give rise to homeotic mutants and segmentation mutants in Drosophila. The homeobox consists of about 180 nucleotides coding for a sequence …   Dictionary of molecular biology

  • Homeobox — Homéoboîte et homéodomaine Homéodomaine de la protéine antennapedia la drosophile se fixant par complémentarité des formes à une section d ADN. Une homéoboîte (appelée aussi homeobox) est une section d ADN qu on retrouve dans les gènes impliqués… …   Wikipédia en Français

  • Homéobox — Homéoboîte et homéodomaine Homéodomaine de la protéine antennapedia la drosophile se fixant par complémentarité des formes à une section d ADN. Une homéoboîte (appelée aussi homeobox) est une section d ADN qu on retrouve dans les gènes impliqués… …   Wikipédia en Français

  • homeobox — noun one of various similar homeotic genes that are involved in bodily segmentation during embryonic development • Syn: ↑homeobox gene • Hypernyms: ↑homeotic gene …   Useful english dictionary

  • homeobox — noun Date: 1984 a short usually highly conserved DNA sequence in various eukaryotic genes and especially homeotic genes that encodes a DNA binding amino acid domain of some proteins …   New Collegiate Dictionary

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