Keywords: APEactive.jpg Hydrogen bonding among key amino acid residues in the active site of APE1 help stabilize each other as well as the AP site to be nicked Meanwhile a negatively charged residue Glue 96 helps hold the Mg2+ also needed to stabilize the AP site in place From PDB 1de9 own original text I created this work entirely by myself 1 2008-12-14 <br/> Original text 12/14/08 Dpuroadrunner10 wikipedia en Dpuroadrunner10 Original upload log en wikipedia Plrk CommonsHelper page en wikipedia APEactive jpg 2008-12-14 20 06 Dpuroadrunner10 1016×768× 64171 bytes <nowiki> Hydrogen bonding among key amino acid residues in the active site of APE1 help stabilize each other as well as the AP site to be nicked Meanwhile a negatively charged residue Glue 96 helps hold the Mg2+ also needed to stabi</nowiki> Nucleases |