Sugar-phosphate backbone

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A sugar-phosphate backbone is one of the main components of [[DNA|DNA ]]and [[RNA|RNA]]. It consists of 5-carbon molecules which are bonded to phosphate groups via a phosphodiester bond. This bond is on carbon 4 of the molecule and bonds through a CH2 group attached to the phosphate. These interactions continue all the way up the DNA molecule. The nucleotide bases attaching to another carbon on the carbon molecule and stick out to the side which gives the illusion of the sugar-phosphate links being a 'backbone'.  
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A sugar-phosphate backbone is one of the main components of [[DNA|DNA]] and [[RNA|RNA]]. It consists of 5-[[carbon|carbon]] [[Molecules|molecules]] which are bonded to [[phosphate groups|phosphate groups]] via a [[phosphodiester bond|phosphodiester bond]]. This [[Bond|bond]] is on carbon 4 of the molecule and bonds through a [[CH2 group|CH<sub>2</sub> group]] attached to the [[phosphate|phosphate]]. These interactions continue all the way up the DNA&nbsp;molecule.&nbsp;The [[Nucleotide|nucleotide]] bases attaching to another carbon on the carbon molecule and stick out to the side which gives the illusion of the sugar-phosphate links being a 'backbone'.  
  
 
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One main importance for them in DNA function is when a [[Double helix|double helix]] is formed, the backbone provides some protection for the bases that have joined up.
 
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One main importance for them in DNA function is when a [[Double_helix|double helix]] is formed, the backbone provides some protection for the bases that have joined up.
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Latest revision as of 16:38, 19 October 2016

A sugar-phosphate backbone is one of the main components of DNA and RNA. It consists of 5-carbon molecules which are bonded to phosphate groups via a phosphodiester bond. This bond is on carbon 4 of the molecule and bonds through a CH2 group attached to the phosphate. These interactions continue all the way up the DNA molecule. The nucleotide bases attaching to another carbon on the carbon molecule and stick out to the side which gives the illusion of the sugar-phosphate links being a 'backbone'.

One main importance for them in DNA function is when a double helix is formed, the backbone provides some protection for the bases that have joined up.

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