Publication

Cloning and expression of the essential gene for poly(A) polymerase from S. cerevisiae

1991
Journal Articles

Abstract

Poly(A) polymerase is essential for the maturation of messenger RNA, adding tracts of adenosine residues to the 3' end of precursor RNA generated by endonucleolytic cleavage. This mechanism of mRNA 3' processing seems to be similar in yeast and in higher eucaryotes, although there are differences in the recognition signals in the pre-mRNA. Here we describe the cloning of the gene for yeast poly(A) polymerase. The enzyme is encoded by a single and essential gene located near the centromere on the left arm of chromosome 11. Poly(A) polymerase purified from recombinant Escherichia coli has the same physical and biochemical properties as the yeast enzyme. The yeast poly(A) polymerase shares features of sequence with its mammalian homologue.

Official source

https://infoscience.epfl.ch/entities/publication/8ad550b6-670f-47bb-a40f-93fb6c6a5a9f

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1991
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/8ad550b6-670f-47bb-a40f-93fb6c6a5a9f

About this result

Related concepts (32)

Messenger RNA

In molecular biology, messenger ribonucleic acid (mRNA) is a single-stranded molecule of RNA that corresponds to the genetic sequence of a gene, and is read by a ribosome in the process of synthesizing a protein. mRNA is created during the process of transcription, where an enzyme (RNA polymerase) converts the gene into primary transcript mRNA (also known as pre-mRNA). This pre-mRNA usually still contains introns, regions that will not go on to code for the final amino acid sequence.

Gene

In biology, the word gene (from γένος, génos; meaning generation or birth or gender) can have several different meanings. The Mendelian gene is a basic unit of heredity and the molecular gene is a sequence of nucleotides in DNA that is transcribed to produce a functional RNA. There are two types of molecular genes: protein-coding genes and noncoding genes. During gene expression, the DNA is first copied into RNA. The RNA can be directly functional or be the intermediate template for a protein that performs a function.

Gene expression

Gene expression is the process by which information from a gene is used in the synthesis of a functional gene product that enables it to produce end products, proteins or non-coding RNA, and ultimately affect a phenotype. These products are often proteins, but in non-protein-coding genes such as transfer RNA (tRNA) and small nuclear RNA (snRNA), the product is a functional non-coding RNA.

Related publications (32)

Cloning and expression of the essential gene for poly(A) polymerase from S. cerevisiae

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