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Selecting and Restricting
Empty Enzyme

Enzyme ATP site

Bound Mg-ATP


Zoom in on ATP-Binding Site


Color by Interaction 
  Hydrophobic - GREEN
 Negative - RED  Positive - BLUE
  H-B Acceptor -
  PINK
 H-B Donor -
  LT. BLUE
 H-B Donor or Acceptor - MAGENTA

Color by Element  

Mg-ATP-Protein Hydrogen Bonds 
Mg-ATP-Protein Salt Bridges 

Describe the interactions of hese amino acids with the ATP ligand.
  Pro210
  Asn175
  Pro204
  Lys15

After zooming into the active site, watch how ATP might enter the ATPsite.

Away from the binding site, only the ionic interaction are effective.
Long range interactions


Final salt bridges and H-bonds