PMID: 8972871Dec 1, 1996Paper

Human ribosomal RNA variants from a single individual and their expression in different tissues

Nucleic Acids Research
B A KuoJ E Sylvester

Abstract

We have investigated the extent of sequence variation in human ribosomal RNA (rRNA) genes and the expression of specific rRNA gene variants in different tissues of an individual. Focusing on the fifth variable region (V5; nt 2065-2244) of the 28S rRNA gene, we find that sequence differences between rRNA genes of a single individual are characterized by differences in number of repeats of simple sequences at four specific sites. These data support and extend previous findings which show similar V5 sequence variation in rRNA genes from a group of individuals. We performed experiments to determine if there is differential gene expression within the rRNA multigene family. From the analysis of data of six variant V5 probes protected from RNase digestion by rRNAs isolated from different tissues of the individual, we conclude that each variant rRNA is present in a similar proportion in these tissues, whereas the actual contributions of variants differ, their relative proportion is maintained from tissue to tissue in an individual. We favor the explanation of a gene dosage effect over that of a regulated gene effect to account for this pattern of rRNA gene expression. In addition, computer generated secondary structure models of each V...Continue Reading

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Citations

May 4, 2005·Molecular Biology Reports·Nirmal Kumar Mishra
Jun 8, 2002·Biochemical and Biophysical Research Communications·Zheng-ping XuGuo-fu Hu
Mar 29, 2001·Differentiation; Research in Biological Diversity·X SunA Hjerpe
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Nov 18, 2020·Molecular Cell·Kathrin LeppekMaria Barna
Aug 27, 2021·Mammalian Genome : Official Journal of the International Mammalian Genome Society·Qinyu Hao, Kannanganattu V Prasanth

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