Nucleolus organizer regions (NORs) are chromosomal regions crucial for the formation of the nucleolus. In humans, the NORs are located on the short arms...
7 KB (762 words) - 20:40, 24 September 2023
nucleolus in immunofluorescence experiments. Although usually only one or two nucleoli can be seen, a diploid human cell has ten nucleolus organizer regions...
19 KB (2,108 words) - 14:35, 26 July 2024
norleucine Nitrite oxidoreductase, an enzyme Nucleolus organizer region, a chromosomal region around which the nucleolus forms in cell biology Norfolk Orbital...
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The genes coding for 18S, 28S and 5.8S rRNA are located in the nucleolus organizer region and are transcribed into large precursor rRNA (pre-rRNA) molecules...
60 KB (7,195 words) - 13:36, 12 September 2024
(RNA Pol I) and upstream binding factor (UBF). SIRT7 is localized to the nucleolus and interacts with RNA Pol I. Chromatin immunoprecipitation studies demonstrate...
13 KB (1,531 words) - 15:25, 6 May 2024
the presence of the nucleolus organizer region on a region on maize chromosome 6, which is required for the assembly of the nucleolus. In 1933, she established...
66 KB (7,039 words) - 22:23, 25 September 2024
"ASE-1: a novel protein of the fibrillar centres of the nucleolus and nucleolus organizer region of mitotic chromosomes". Chromosoma. 106 (8): 493–502....
19 KB (2,154 words) - 04:04, 28 November 2023
Cell nucleus (section Nucleolus)
nucleolar organizer regions (NOR). The main roles of the nucleolus are to synthesize rRNA and assemble ribosomes. The structural cohesion of the nucleolus depends...
87 KB (9,963 words) - 21:29, 23 September 2024
detection of cell division markers such as Ki-67 or the argyrophilic nucleolus organizer region (AgNOR) also shows correlations with the biological behavior of...
44 KB (5,640 words) - 16:03, 25 April 2024
isochores MeSH G14.340.024.470 – locus control region MeSH G14.340.024.630 – nucleolus organizer region MeSH G14.340.024.686 – operon MeSH G14.340.024...
33 KB (3,088 words) - 12:39, 20 June 2022
"ASE-1: a novel protein of the fibrillar centres of the nucleolus and nucleolus organizer region of mitotic chromosomes". Chromosoma. 106 (8): 493–502....
5 KB (592 words) - 01:41, 3 December 2023
whose secondary constriction is associated with the formation of the nucleolus are referred to as nucleolar SAT-chromosomes. There are at least 4 SAT-chromosomes...
5 KB (521 words) - 00:57, 29 May 2024
constrictions indicate sites of nucleolus formation and are called "nucleolar organizing regions" (NORs). The nucleolus in the nucleus remains associated...
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located on Chromosome 15. Tandem copies of this gene form one of five nucleolus organizer regions in the human genome, they are located on the chromosomes...
5 KB (567 words) - 09:43, 1 August 2024
located on Chromosome 22. Tandem copies of this gene form one of five nucleolus organizer regions in the human genome, they are located on the chromosomes...
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the nucleolus; but heterochromatic rDNA is found outside of the nucleolus. However, transcriptionally active rDNA resides inside of the nucleolus itself...
17 KB (1,893 words) - 13:23, 4 September 2024
located on Chromosome 21. Tandem copies of this gene form one of five nucleolus organizer regions in the human genome, they are located on the chromosomes...
5 KB (601 words) - 09:44, 1 August 2024
625 – nucleosomes MeSH A11.284.430.106.279.345.190.160.650 – nucleolus organizer region MeSH A11.284.430.106.279.345.190.160.830 – synaptonemal complex...
47 KB (3,940 words) - 16:46, 9 February 2024
confined to the nucleolus, where about 400 copies of the 42.9-kb rDNA gene are present, arranged as tandem repeats in nucleolus organizer regions. Each...
13 KB (1,695 words) - 16:45, 17 July 2024
Nucleoid (redirect from Nucleoid region)
"Colocalization of distant chromosomal loci in space in E. coli: a bacterial nucleolus". Genes & Development. 30 (20): 2272–2285. doi:10.1101/gad.290312.116...
151 KB (17,185 words) - 06:38, 8 August 2024
some protein coding genes, human acrocentric p-arms also contain Nucleolus organizer regions (NORs), from which ribosomal RNA is transcribed. However...
40 KB (4,197 words) - 18:58, 18 September 2024
where it is translated into a specific protein molecule. The nucleolus is a specialized region within the nucleus where ribosome subunits are assembled....
60 KB (6,271 words) - 04:42, 20 August 2024
located on Chromosome 13. Tandem copies of this gene form one of five nucleolus organizer regions in the human genome, they are located on the chromosomes...
4 KB (535 words) - 09:18, 1 August 2024
segregates the DNA from the cytoplasm, disintegrates into small vesicles. The nucleolus, which makes ribosomes in the cell, also disappears. Microtubules project...
71 KB (7,317 words) - 12:42, 26 August 2024
a thick region of cytoplasm with granules containing a contractile vacuole usually posterior to the single nucleus. There is a big nucleolus with a diameter...
3 KB (282 words) - 09:23, 9 February 2024
Cellular component cytoplasm peroxisome cytoskeleton microtubule organizing center nucleolus cytosol plasma membrane Biological process intracellular signal...
8 KB (1,015 words) - 06:42, 22 February 2024
is expected to be targeted in the nucleus, specifically the nucleolus. The promoter region is predicted to start 1,303 bp upstream from the 5' UTR and...
18 KB (1,883 words) - 08:31, 12 December 2023
B23.1 and B23.2 respectively in rat. The isoform 1 is localized to the nucleolus as is reported for rat B23.1 whereas the isoform 3 (B23.2) is nucleoplasmic...
39 KB (4,897 words) - 09:09, 9 April 2024
time, Thomas Harrison Montgomery Jr. described the morphology of the nucleolus, an organelle within the nucleus, which has subsequently been shown to...
81 KB (7,956 words) - 04:25, 9 September 2024
Closely related species or even populations may differ in their nucleolus organizing regions (NORs), which are genomic regions that contain many copies...
8 KB (960 words) - 18:14, 21 April 2024