euchromatin

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euchromatin
euchromatin Cytology. (juːˈkrəʊmətɪn) [a. G. euchromatin (E. Heitz 1928, in Jahrb. f. wissenschaftliche Botanik LXIX. 764), f. eu- + chromatin.] Euchromatic chromosome material.1932 Biol. Abstr. VI. 347/1 Chromosomes are composed of sections of heterochromatin and of euchromatin attached end to end.... Oxford English Dictionary
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Euchromatin
The key distinction between the structure of euchromatin and heterochromatin is that the nucleosomes in euchromatin are much more widely spaced, which While not all euchromatin is necessarily transcribed, as the euchromatin is divided into transcriptionally active and inactive domains, euchromatin is wikipedia.org
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Heterochromatin
Structure Chromatin is found in two varieties: euchromatin and heterochromatin. Although most of its genome can be characterized as euchromatin, S. cerevisiae has regions of DNA that are transcribed very poorly. wikipedia.org
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heterochromatin
heterochromatin Cytol. (ˌhɛtərəʊˈkrəʊmətɪn) [a. G. heterochromatin (E. Heitz 1928, in Jahrb. f. wissenschaftliche Bot. LXIX. 764), f. hetero- + chromatin.] Heterochromatic chromosome material.1932 [see euchromatin]. 1941 Ann. Bot. V. 203 Large distal segments which appear as heterochromatin in mitos... Oxford English Dictionary
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Centric heterochromatin
usually formed on alpha satellite DNA in humans; however, there have been cases where centric heterochromatin and centromeres have formed on originally euchromatin wikipedia.org
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heterochromatization
heterochromatization Cytol. (ˌhɛtərəʊˌkrəʊmətaɪˈzeɪʃən) Also ˌheteroˌchromatiniˈzation. [f. prec. + -ization.] A change of state of chromosome material in which it becomes heterochromatic and the action of the genes is modified or suppressed; also, the extent to which such a change has occurred. So ... Oxford English Dictionary
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M33 (gene)
It localises to euchromatin within interphase nuclei, but it is enriched within the centromeric heterochromatin of metaphase chromosomes. wikipedia.org
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Histone-modifying enzymes
Once added to the histone, these groups (directly or indirectly) elicit either a loose and open histone conformation, euchromatin, or a tight and closed The positive charge on a histone is always neutralized upon acetylation, creating euchromatin which increases transcription and expression of the target wikipedia.org
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Drosophila roX RNA
This is achieved by the MSL complex binding to the X chromosome and inducing histone H4 lysine 16 acetylation and allows for the formation of euchromatin wikipedia.org
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Locus (genetics)
The cytogenetic bands are areas of the chromosome either rich in actively-transcribed DNA (euchromatin) or packaged DNA (heterochromatin). They appear differently upon staining (for example, euchromatin appears white and heterochromatin appears black on Giemsa staining). wikipedia.org
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Emil Heitz
In 1928, Heitz detected differences along chromosomes that correlated with linear arrangement of genes, suggesting the terms euchromatin and heterochromatin wikipedia.org
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Pseudo-arrhenotoky
The adult cells have one set of inactive H chromosomes and one set of euchromatin E chromosomes. wikipedia.org
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Nucleic acid quaternary structure
Highly methylated DNA nucleotides are more likely found within heterochromatin whereas unmethylated DNA nucleotides are common in euchromatin. Therefore, it is the sum of all those modifications that determine whether chromatin will resemble heterochromatin or euchromatin. wikipedia.org
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Active chromatin sequence
Active chromatin may also be called euchromatin. ACSs may occur in non-expressed gene regions which are assumed to be "poised" for transcription. wikipedia.org
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G banding
In contrast, less condensed chromatin (Euchromatin)—which tends to be rich with guanine and cytosine (GC-rich) and more transcriptionally active—incorporates wikipedia.org
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