- Institution/s: Universidad de Saarbrücken, Universidad de Valladolid, Universitatea de Vest din Timişoara
- Project: Diccionario Terminológico de Genética (Eurogene)
- Identification number: 54
- Subdomains: Studies of chromatin, Studies of DNA, Studies of RNA, Techniques
- Author/s: Judith CARRERA FERNÁNDEZ, Laura SANJUÁN LANCHO, Raluca RADAC, Rosario HERRERO
- Creation / modification date: 01-03-2014
- Term: heterochromatin
- Gramatical category: s
- Definition: Chromatin of specific parts of certain chromosomes which remains condensed throughout interphase whilst retaining the deeply staining properties of metaphase chromosomes, but also a pattern of DNA replication out of phase with that of remaining euchromatic parts of the chromosomes, and a relative transcriptional inactivity.
- Context: We propose that perpetuation of heterochromatin involves self-maintenance factors, including local concentration of Hp1α and -β, and that a degree of plasticity is provided by the cycle of H4 acetylation/deacetylation assisted by CAF-1.
- Expression: (1) Heterochromatin protein HP1 (2) Constitutive heterochromatin (3) Facultative heterochromatin
- Weighting mark: nor
- Remission: sin, ley de Hardy-Weinberg/equilibrio de Hardy-Weinberg Fuente: BENITO, J. C. y N. F. J. ESPINO (2012). “Glosario”, en Genética: Conceptos esenciales. Madrid [etc: Médica Panamericana. OLIVA, R. (2002). Genética médica. Barcelona: Edicions Universitat de Barcelona.
- Sources:
- Term: BENITO, J. C. y N. F. J. ESPINO (2012). Genética: Conceptos esenciales. Madrid [etc.: Médica Panamericana.
- Definition: BENITO, J. C. y N. F. J. ESPINO (2012).“Glosario”, en Genética: Conceptos esenciales. Madrid [etc: Médica Panamericana. Disponible en línea
- Context: BENITO, J. C. y N. F. J. ESPINO (2012). Genética: Conceptos esenciales. Madrid [etc.: Médica Panamericana, p. 52.
- Images:
http://commons.wikimedia.org/wiki/File:Nucleus_of_a_chloride_cell.jpg
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