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POLR gene family
Reviewed June 2013
What are the POLR genes?
Genes in the POLR family provide instructions for making parts (subunits) of three enzymes called RNA polymerases I, II, and III. These enzymes attach (bind) to DNA and produce (synthesize) RNA (a chemical cousin of DNA) in accordance with the instructions carried by the DNA. This process is known as transcription.
RNA polymerase II transcribes genes that provide instructions for making proteins, yielding messenger RNA (mRNA), which serves as the genetic blueprint for protein production. RNA polymerases I and III help synthesize several forms of RNA, including ribosomal RNA (rRNA) and transfer RNA (tRNA). Molecules of rRNA and tRNA assemble protein building blocks (amino acids) into working proteins; this process is essential for the normal functioning and survival of cells.
Mutations in genes in the POLR family can result in developmental problems affecting a variety of organs and systems in the body.
Which genes are included in the POLR gene family?
The HUGO Gene Nomenclature Committee (HGNC) provides an index of gene
What conditions are related to genes in the POLR gene family?
Genetics Home Reference includes these conditions related to genes in the POLR gene family:
Where can I find general information about genes and gene families?
The Handbook provides basic information about genetics in clear language.
What glossary definitions help with understanding the POLR gene family?
You may find definitions for these and many other terms in the Genetics Home Reference Glossary.
See also Understanding Medical Terminology.
References (5 links)