Nucleolus organizer region
id:
nucleolus-organizer-region-295-420793
title:
Nucleolus organizer region
text:
Nucleolus organizer regions (NORs) are chromosomal regions crucial for the formation of the nucleolus. In humans, the NORs are located on the short arms of the acrocentric chromosomes 13, 14, 15, 21 and 22, the genes RNR1, RNR2, RNR3, RNR4, and RNR5 respectively. These regions code for 5.8S, 18S, and 28S ribosomal RNA. The NORs are "sandwiched" between the repetitive, heterochromatic DNA sequences of the centromeres and telomeres. The exact sequence of these regions is not included in the human
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Nucleolus_organizer_region
date created:
date modified:
2023-09-24T20:40:24Z
main entity:
{"identifier":"Q968963","url":"https://www.wikidata.org/entity/Q968963"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/9/95/NORAgc.jpg","width":276,"height":185}
fields total:
13
integrity:
14