Wikia

Psychology Wiki

Changes: Reading frames

Edit

Back to page

(New page: {{BioPsy}} In biology, a '''reading frame''' is a contiguous and non-overlapping set of three-nucleotide codons in DNA or RNA. There are 3 possible reading frames in a ...)
 
 
Line 1: Line 1:
 
{{BioPsy}}
 
{{BioPsy}}
In [[biology]], a '''reading frame''' is a contiguous and non-overlapping set of three-[[nucleotide]] [[codons]] in [[DNA]] or [[RNA]]. There are 3 possible reading frames in a [[mRNA]] strand and six in a double stranded [[DNA]] molecule due to the two strands from which transcription is possible. This leads to the possibility of overlapping [[gene]]s and there may be many of these in bacteria.<ref name=Johnson_2004>{{cite journal | author = Johnson Z, Chisholm S | title = Properties of overlapping genes are conserved across microbial genomes. | journal = Genome Res | volume = 14 | issue = 11 | pages = 2268-72 | year = 2004 | id = PMID 15520290}}</ref> Some viruses e.g. [[HBV]] and [[BYDV]] use several overlapping genes in different reading frames.
+
In [[biology]], a '''reading frame''' is a contiguous and non-overlapping set of three-[[nucleotide]] [[codons]] in [[DNA]] or [[RNA]]. There are 3 possible reading frames in a [[mRNA]] strand and six in a double stranded [[DNA]] molecule due to the two strands from which transcription is possible. This leads to the possibility of overlapping [[gene]]s and there may be many of these in bacteria.<ref name=Johnson_2004>{{cite journal | author = Johnson Z, Chisholm S | title = Properties of overlapping genes are conserved across microbial genomes. | journal = Genome Res | volume = 14 | issue = 11 | pages = 2268-72 | year = 2004 | id = PMID 15520290}}</ref>
   
 
In rare cases a translating [[ribosome]] may shift from one frame to another, a [[translational frameshift]]. It is distinct from a [[frameshift mutation]] as the nucleotide sequence (DNA or RNA) is not altered only the frame in which it is read.
 
In rare cases a translating [[ribosome]] may shift from one frame to another, a [[translational frameshift]]. It is distinct from a [[frameshift mutation]] as the nucleotide sequence (DNA or RNA) is not altered only the frame in which it is read.

Latest revision as of 08:46, March 15, 2008

Assessment | Biopsychology | Comparative | Cognitive | Developmental | Language | Individual differences | Personality | Philosophy | Social |
Methods | Statistics | Clinical | Educational | Industrial | Professional items | World psychology |

Biological: Behavioural genetics · Evolutionary psychology · Neuroanatomy · Neurochemistry · Neuroendocrinology · Neuroscience · Psychoneuroimmunology · Physiological Psychology · Psychopharmacology (Index, Outline)


In biology, a reading frame is a contiguous and non-overlapping set of three-nucleotide codons in DNA or RNA. There are 3 possible reading frames in a mRNA strand and six in a double stranded DNA molecule due to the two strands from which transcription is possible. This leads to the possibility of overlapping genes and there may be many of these in bacteria.[1]

In rare cases a translating ribosome may shift from one frame to another, a translational frameshift. It is distinct from a frameshift mutation as the nucleotide sequence (DNA or RNA) is not altered only the frame in which it is read.

An open reading frame (ORF) is a reading frame that contains a start codon and the subsequent translated region, but no stop codon.

ReferencesEdit

  1. Johnson Z, Chisholm S (2004). Properties of overlapping genes are conserved across microbial genomes.. Genome Res 14 (11): 2268-72. PMID 15520290.

See alsoEdit


This page uses Creative Commons Licensed content from Wikipedia (view authors).

Around Wikia's network

Random Wiki