RNR1 (RNA, ribosomal 45S cluster 1) is a human

ribosomal DNA The ribosomal DNA (rDNA) consists of a group of ribosomal RNA encoding genes and related regulatory elements, and is widespread in similar configuration in all domains of life. The ribosomal DNA encodes the non-coding ribosomal RNA, integral struc ...

gene located on

Chromosome 13 Chromosome 13 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 13 spans about 113 million base pairs (the building material of DNA) and represents between 3.5 and 4% of the total DNA i ...

. Tandem copies of this gene form one of five

nucleolus organizer region ] Nucleolus organizer regions (NORs) are chromosome, 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, R ...

s in the human genome, they are located on the chromosomes 13 (RNR1), 14 ( RNR2), 15 ( RNR3), 21 ( RNR4), 22 ( RNR5).

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Further reading