TABLE 3.

Relative displacement of key zinc ligand atoms in the SPM-1 homology model compared with the IMP-1 crystal structure

Coordinating atom for SPM-1 (IMP-1)Distance (Å) for SPM-1 (IMP-1)aZinc atom
C158SG (C158SG)3.72 (2.28)2
H165NE (H139NE)2.56 (1.99)1
H221NE (H197NE)2.97 (2.15)2
  • a Distance from the atom center in column 1 to the center of the relevant zinc atom indicated in the last column. Appropriate atoms and equivalent distances for IMP-1 are shown in parentheses.