Non-polar amino acid: Difference between revisions

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Non-polar [[Amino acid|amino acids]] are those which have no overall charge. Of the twenty amno acids there are five charged and fifteen uncharged, these are:
Non-polar [[Amino acid|amino acids]] are those which are not electronegatively charged


(A) [[Alanine|Alanine]]  
(A) [[Alanine|Alanine]]  


(C) [[Cysteine|Cystein]]
(F) [[Phenylalanine|Phenylalanine]]
 
(F) [[Phenylalanine|Phenylalanine]]  


(G [[Glycine|Glycine]]  
(G [[Glycine|Glycine]]  
Line 14: Line 12:


(M) [[Methionine|Methionine]]  
(M) [[Methionine|Methionine]]  
(N) [[Asparagine|Asparagine]]


(P) [[Proline|Proline]]  
(P) [[Proline|Proline]]  
(Q) [[Glutamine|Glutamine]]
(S) [[Serine|Serine]]
(T) [[Threonine|Threonine]]


(V) [[Valine|Valine]]  
(V) [[Valine|Valine]]  
(W) [[Tryptophan|Tryptophan]]
(Y) [[Tyrosine|Tyrosine]]


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The overall charge of an amino acid is determined by the R group attached to the&nbsp;alpha carbon atom.&nbsp;Those with a carboxyl&nbsp;R group&nbsp;will have an overall&nbsp;negative charge, whereas those with a amide&nbsp;group&nbsp;have an&nbsp;positive charge. &nbsp;<ref>Alberts B, Molecular Biology of the Cell, 5th Edition pg 127</ref>.  
The overall polarity of an amino acid is determined by the R group attached to the&nbsp;alpha carbon atom.&nbsp;&nbsp;<ref>Alberts B, Molecular Biology of the Cell, 5th Edition pg 127</ref>.  


=== References  ===
=== References  ===


<references />.<br>
<references />.<br>

Revision as of 15:50, 29 November 2012

Non-polar amino acids are those which are not electronegatively charged

(A) Alanine

(F) Phenylalanine

(G Glycine

(I) Isoleucine

(L) Leucine

(M) Methionine

(P) Proline

(V) Valine


The overall polarity of an amino acid is determined by the R group attached to the alpha carbon atom.  [1].

References

  1. Alberts B, Molecular Biology of the Cell, 5th Edition pg 127

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