DNA binding proteins binding DNA
    
  
        
        | Sort | Content | Brief description | 
		
        
        | 1 | Helix-turn-helix | Preliminary version of this class of proteins. This group includes the famous 'homeobox motif' involved in animal bodyplan specification | 
        
       | 2 | Leucine zipper | Named for the way two alpha helices 'zip together' by way of leucine sidechains that project from each | 
        
    | 3 | Zinc finger | Stretches of amino acids are non-covalently bonded to zinc atoms; when drawn as 2D structures on paper, these (kinda) look like fingers. | 
        
    
    | 3 | Lac repressor | (Link goes off site) Includes an animation showing how lac repressor 'bends the DNA to its will' as it binds | 
        
        
    | 10 | Resource: summary from UC Davis | a nice entry in their BioWiki |