protein structure levels 0.0 / 5 ? BiologyBiological moleculesASOCR Created by: danielle travesCreated on: 27-05-14 09:08 primary structure - the sequence of amino acids in the polypeptide chain -held together by peptide bonds in between the chains -a dipeptide is when there are two maino acids -a polypeptide is when there is more than two amino acids 1 of 4 secondary structure -hydrogen bonds form between amino acids in the chain -this makes it fold into either an alpha helix or a beta pleated sheet 2 of 4 tertiary structure -further coiling or folding of the chains -more bonds form between different parts of the chain -bonds that hold the tertiary structure are ionic, disulfide, hydrophobic and hydrophillic and hydrogen bonds 3 of 4 quaternary structure -more than one polypeptide chain -haemoglobin can be influenced by all bonds that affect proteins 4 of 4
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