
Nucleolus organizer region - Wikipedia
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 …
核仁组织区 - 百度百科
核仁组织区位于染色体的次缢痕部位,但并非所有的次缢痕都是nor。 染色体NOR是 rRNA基因 所在部位(5S rRNA基因除外),与间期细胞核仁形成有关。 中文名
Sequence and epigenetic landscapes of active and silent nucleolus ...
2023年11月1日 · Arabidopsis thaliana has two ribosomal RNA (rRNA) gene loci, nucleolus organizer regions NOR2 and NOR4, whose complete sequences are missing in current …
Sequencing of the Arabidopsis NOR2 reveals its distinct ... - Nature
2021年1月15日 · Here, using a combination of long- and short-read sequencing technologies we assemble contigs of the Arabidopsis NOR2 rDNA domain. We identify several expressed …
Nucleolar organizer regions: genomic ‘dark matter’ requiring ...
Nucleoli form around tandem arrays of a ribosomal gene repeat, termed nucleolar organizer regions (NORs). During metaphase, active NORs adopt a characteristic undercondensed …
Structural features of two major nucleolar organizer regions (NORs ...
In this work we provide insights into the number of rRNA genes on wheat chromosomes, the genomic structures of the regions surrounding NORs, the subtypes of rRNA gene (rDNA) units …
Chromosome NOR - an overview | ScienceDirect Topics
The nucleolus-organizing regions (NORs) are chromosomal sites of 5.8S, 18S, and 28S ribosomal ribonucleic acid (RNA; ribosomal RNA [rRNA]) genes and were originally detected by silver …
核仁组织者 - 百度百科
在 真核细胞 中,核仁是产生 核糖体 的场所,它通过核仁组织者区(nor)与染色体相连。 真核细胞18S+28S核糖体 rRNA基因 集中分布在NOR,而这些rRNA基因的转录活性及其在染色体上的位 …
Nucleolus and chromatin - PMC
Ribosomal RNA (rRNA) is transcribed by RNA polymerase I (Pol I), which depends on a set of basal transcription co-factors including selective factor 1 (SL1), and the upstream-binding …
Nucleolar Organiser Regions - SpringerLink
Nucleolar organiser regions (NORs) are structures of central importance in the transcription of nucleic acid to protein. Thus, by means of hybridisation methodology, these regions have been …