Sandbox 666: Difference between revisions

From Proteopedia
Jump to navigationJump to search
Line 25: Line 25:
    
    
   
   
The specific recognition of ''Eco''RI of the GAATTC sequence is mediated by twelve hydrogen bonds (six bonds per subunit) originating from α helical recognition modules. Three amino acids are responsible for the recognition:'''Arg<sup>200</sup>, Glu<sup>144</sup> and Arg<sup>145</sup>'''. These amino acids are shown in red <scene name='Sandbox_666/Grey_protein/3'>here</scene>. Each residue form two hydrogen bonds with Guanine and the adjacent Adenosine residues respectively. There are also two arms, which establish contacts with DNA backbones outside the recognition sequences.
The specific recognition of ''Eco''RI of the GAATTC sequence is mediated by twelve hydrogen bonds (six bonds per subunit) originating from α helical recognition modules. Three amino acids are responsible for the recognition: '''Arg<sup>200</sup>, Glu<sup>144</sup> and Arg<sup>145</sup>'''. These amino acids are shown in red <scene name='Sandbox_666/Grey_protein/3'>here</scene>. Each residue form two hydrogen bonds with Guanine and the adjacent Adenosine residues respectively. There are also two arms, which establish contacts with DNA backbones outside the recognition sequences.