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Frameshift mutation

Definition

noun, plural: frameshift mutations

A type of gene mutation wherein the addition or deletion of (a number of) nucleotide(s) causes a shift in the reading frame of the codons in the mRNA, thus, may eventually lead to the alteration in the amino acid sequence at protein translation.


Supplement

Mutations involving the genes are of two major types:

Frameshift mutations may be beneficial, deleterious, or lethal. For example, induction of frameshift mutation has been used to make certain bacteria capable of producing nylonase, an enzyme that can degrade nylon.

Frameshift mutation has also been one of the possible causes of albinism. A shift in the reading frame can lead to formation of stop codon, hence, early terminating protein translation. An early termination of any of the enzymes necessary for the production of melanin can result in albinism.

Tay Sachs disease is an example of a disease caused by frameshift mutation. The disease is caused by various mutations, including frameshift mutations, on chromosome 15 in the HEXA gene that codes for the alpha-subunit of the lysosomal enzyme beta-N-acetylhexosaminidase A.


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  • frame shift mutation

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Did learning this make you guys atheists?

... 2. I learned randomness is a real phenomena in nature, and the mutations/genetic recombination/ect that is occurring inside the diploid ... air, but just removing ONE nucleotide from a DNA strand can result in a frameshift mutation that completely changes the protein. You might have a ...

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Thu Mar 15, 2012 1:44 am
 
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Topic: Did learning this make you guys atheists?
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Re: no repeat sequences in exons of genes?

... be that if inserted into the exon the repeat sequence would cause a frameshift mutation and cause problems with the splicing and the proteins made would be incorrect. that ...

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by merv
Mon Oct 03, 2011 1:37 am
 
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Topic: no repeat sequences in exons of genes?
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no repeat sequences in exons of genes?

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by vulpes
Sun Sep 04, 2011 3:29 pm
 
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