Upper HN    GLU-  56 - HA    GLU-  56   2.65   1   0.11   0.22                     *
    Upper HN    LEU   90 - HB3   LEU   90   3.11   1   0.06   0.34                     *
    Upper HN    LEU   90 - HB2   LEU   90   3.11   3   0.05   0.37                *  + +
    Cutoffs: Upper distance limits  :    0.20 A