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    how do sulphur containing amino acids help to give keratin molecules their characteristic strength?
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    they can form disulphide bonds which are v strong
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    2 cysteine residues with the -SH sulphydryl group on the -R side chain undergo oxidation to form strong disulphide bridges (S-S)

    Hope it helps!
 
 
 
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Updated: November 12, 2008

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