Contacts of the helix formed by residues 145 - 169 (chain A) in PDB entry 5HKZ


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with SER 145 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    139A  ARG*     2.8    33.1    +      -       -      -
    142A  GLU*     3.0    19.2    +      -       -      +
    143A  GLU      3.4     0.8    -      -       -      -
    144A  ASN*     1.3    79.9    -      -       -      +
    146A  GLN*     1.3    65.5    +      -       -      +
    147A  PRO*     3.5     7.7    -      -       -      +
    148A  ARG      3.1    14.9    +      -       -      -
    149A  ARG*     2.9    22.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 146 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144A  ASN      4.0     0.4    +      -       -      -
    145A  SER*     1.3    71.8    -      -       -      +
    147A  PRO*     1.3    68.1    -      -       +      +
    149A  ARG*     3.3     6.7    +      -       -      +
    150A  ASN*     2.9    39.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 147 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    132A  LEU*     3.5    32.0    -      -       +      +
    136A  GLY*     4.0    19.7    -      -       -      -
    139A  ARG*     4.2    14.4    -      -       +      -
    140A  MET*     3.5    23.7    -      -       +      +
    145A  SER*     3.5    13.9    -      -       -      +
    146A  GLN*     1.3    94.6    -      -       +      +
    148A  ARG*     1.3    53.9    +      -       -      +
    150A  ASN*     3.3     1.2    +      -       -      +
    151A  LEU*     2.9    28.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 148 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75A  LEU*     3.5    28.2    +      -       -      +
     76A  ALA      4.5     5.9    +      -       -      -
     77A  LEU*     3.9    24.3    -      -       -      +
     78A  LYS*     5.5     1.8    -      -       -      +
    140A  MET*     2.9    59.6    +      -       +      +
    141A  TYR      4.1    12.1    +      -       -      -
    142A  GLU      3.3    12.9    +      -       -      +
    143A  GLU*     3.4    34.4    +      -       -      +
    145A  SER*     3.1    11.4    +      -       -      +
    147A  PRO*     1.3    75.0    -      -       -      +
    149A  ARG*     1.3    66.2    +      -       -      +
    151A  LEU*     3.2    10.1    +      -       -      +
    152A  THR*     3.0    28.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 149 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143A  GLU      5.1     0.9    -      -       -      +
    144A  ASN*     4.0    19.3    -      -       +      +
    145A  SER      2.9    21.0    +      -       -      +
    146A  GLN*     3.7     6.1    -      -       -      +
    148A  ARG*     1.3    76.4    -      -       -      +
    150A  ASN*     1.3    66.0    +      -       -      +
    152A  THR*     3.2     8.4    +      -       -      -
    153A  LYS*     3.0    21.7    +      -       -      +
    276A  GLU*     5.3     8.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 150 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    132A  LEU*     3.7    28.8    -      -       +      +
    146A  GLN*     2.9    29.5    +      -       -      +
    147A  PRO*     3.6     5.8    -      -       -      +
    148A  ARG      3.3     0.2    -      -       -      -
    149A  ARG*     1.3    78.7    -      -       -      +
    151A  LEU*     1.3    56.9    +      -       -      +
    153A  LYS*     3.3     8.1    +      -       -      +
    154A  LEU*     2.9    34.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 151 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70A  CYS*     4.6     2.0    -      -       -      -
     77A  LEU*     4.1    32.5    -      -       +      -
     84A  ILE*     4.0    17.5    -      -       +      -
    129A  THR*     3.8    28.5    -      -       +      -
    132A  LEU*     3.6     9.8    -      -       +      +
    133A  PHE*     4.2    18.2    -      -       +      -
    140A  MET*     3.9    22.2    -      -       +      -
    147A  PRO      2.9    17.4    +      -       -      +
    148A  ARG*     3.5     9.6    -      -       -      +
    149A  ARG      3.2     0.4    -      -       -      -
    150A  ASN*     1.3    72.9    -      -       -      +
    152A  THR*     1.3    61.7    +      -       -      +
    154A  LEU*     3.4     3.2    +      -       +      -
    155A  SER*     2.8    35.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 152 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82A  PRO*     4.8     0.8    -      -       +      +
    148A  ARG*     3.0    14.5    +      -       -      -
    149A  ARG*     3.6     9.3    -      -       -      -
    151A  LEU*     1.3    76.3    -      -       -      +
    153A  LYS*     1.3    65.5    +      -       -      +
    155A  SER*     3.1     8.9    +      -       -      -
    156A  LEU*     3.0    22.0    +      -       -      +
    271A  PHE      6.0     0.4    -      -       -      +
    273A  THR*     3.7    18.6    -      -       +      +
    276A  GLU*     3.6    36.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 153 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    149A  ARG      3.0    13.3    +      -       -      +
    150A  ASN*     3.7    11.0    -      -       -      +
    152A  THR*     1.3    75.8    -      -       -      +
    154A  LEU*     1.3    59.5    +      -       +      +
    156A  LEU*     3.2    10.4    +      -       -      +
    157A  ILE*     3.0    47.6    +      -       +      +
    232A  CYS*     4.0     6.4    -      -       -      -
    271A  PHE*     3.6    55.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 154 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125A  LYS*     3.9    35.2    -      -       +      +
    128A  GLN*     4.1    18.4    -      -       +      +
    129A  THR*     3.6    33.2    -      -       +      +
    132A  LEU*     3.8    22.9    -      -       +      -
    150A  ASN*     2.9    22.3    +      -       +      +
    151A  LEU*     3.7     7.2    -      -       +      +
    152A  THR      3.3     0.2    -      -       -      -
    153A  LYS*     1.3    74.3    -      -       +      +
    155A  SER*     1.3    61.3    +      -       -      +
    157A  ILE*     3.1    11.6    +      -       +      +
    158A  PHE*     2.8    40.5    +      -       +      -
----------------------------------------------------------
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Residues in contact with SER 155 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82A  PRO*     3.6    26.8    +      -       -      +
     84A  ILE*     3.7    27.1    +      -       -      +
     87A  LEU*     3.3    12.9    -      -       -      +
    151A  LEU*     2.8    28.6    +      -       -      +
    152A  THR*     3.1     9.1    +      -       -      -
    154A  LEU*     1.3    77.9    -      -       -      +
    156A  LEU*     1.3    61.1    +      -       -      +
    158A  PHE*     3.3     9.9    +      -       -      +
    159A  SER      3.0    17.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 156 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82A  PRO*     3.9    17.8    -      -       +      +
    152A  THR*     3.0    12.5    +      -       +      +
    153A  LYS*     3.5    10.5    -      -       -      +
    155A  SER*     1.3    77.9    -      -       -      +
    157A  ILE*     1.3    61.0    +      -       -      +
    159A  SER*     3.1     5.1    +      -       -      -
    160A  HIS*     3.0    46.2    +      -       +      +
    271A  PHE*     3.4    51.6    -      -       +      +
    272A  LEU      3.8     9.6    -      -       -      +
    273A  THR*     4.3    10.3    -      -       +      -
    295A  LEU      5.9     1.3    -      -       -      +
    297A  CYS*     3.7    30.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 157 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125A  LYS*     3.8    32.8    -      -       +      -
    153A  LYS*     3.0    43.3    +      -       +      +
    154A  LEU*     3.6    14.6    -      -       +      +
    156A  LEU*     1.3    76.0    -      -       -      +
    158A  PHE*     1.3    62.1    +      -       -      +
    160A  HIS*     3.2     3.0    +      -       -      +
    161A  MET*     2.9    31.9    +      -       -      +
    230A  LEU      4.2     9.6    -      -       -      +
    231A  THR      3.8    17.5    -      -       -      +
    232A  CYS*     3.7    27.1    -      -       +      -
    271A  PHE*     4.5     4.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 158 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84A  ILE*     4.0    25.4    -      -       +      -
     87A  LEU*     4.3    17.2    -      -       +      +
     88A  LEU*     3.8    23.1    -      -       +      -
     91A  THR*     4.9     4.2    +      -       -      +
    122A  LEU*     3.9    26.2    -      -       +      -
    125A  LYS*     3.8    32.3    -      -       +      -
    126A  THR*     3.9     9.6    -      -       -      -
    129A  THR*     3.5    25.8    -      -       -      -
    154A  LEU*     2.8    36.3    +      -       +      +
    155A  SER*     3.3     5.4    +      -       -      +
    157A  ILE*     1.3    72.1    -      -       +      +
    159A  SER*     1.3    57.6    +      -       -      +
    161A  MET*     3.4    12.8    +      -       +      +
    162A  LEU*     3.0    30.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 159 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82A  PRO*     4.0    10.8    -      -       -      +
     87A  LEU*     3.7    26.8    -      -       -      +
    155A  SER      3.0    13.2    +      -       -      -
    156A  LEU*     3.1    10.5    +      -       -      -
    158A  PHE*     1.3    78.1    -      -       -      +
    160A  HIS*     1.3    64.5    +      -       -      +
    162A  LEU*     3.4     3.5    +      -       -      +
    163A  ALA*     3.1    23.2    +      -       -      +
    297A  CYS*     3.8    26.7    +      -       -      -
    298A  THR*     5.7     0.3    -      -       -      +
    300A  LEU*     5.7     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with HIS 160 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156A  LEU*     3.0    43.6    +      -       +      +
    157A  ILE      3.6     5.2    -      -       -      +
    159A  SER*     1.3    79.4    +      -       -      +
    161A  MET*     1.3    55.9    +      -       -      +
    163A  ALA*     3.4     2.6    +      -       -      +
    164A  GLU*     3.0    29.3    +      -       -      +
    230A  LEU*     3.4    57.7    -      -       +      +
    231A  THR*     4.1     4.2    -      -       +      +
    239A  PHE*     4.5     3.3    -      -       -      -
    271A  PHE*     4.2    12.9    -      +       -      -
    295A  LEU*     5.1     6.3    -      -       +      +
    296A  SER      5.3     0.4    -      -       -      -
    297A  CYS*     4.7     9.1    +      -       +      -
    300A  LEU*     3.9    34.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with MET 161 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118A  PHE*     3.4    32.6    -      -       +      +
    121A  ASN*     3.6    23.8    -      -       +      +
    122A  LEU*     3.6    47.6    -      -       +      +
    125A  LYS*     4.5     4.9    -      -       -      -
    157A  ILE*     2.9    32.9    +      -       +      +
    158A  PHE*     3.6    17.7    -      -       +      +
    160A  HIS*     1.3    76.2    -      -       -      +
    162A  LEU*     1.3    56.6    +      -       -      +
    164A  GLU*     3.3     2.4    +      -       -      +
    165A  LEU*     2.9    25.1    +      -       -      +
    231A  THR*     3.7    27.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 162 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87A  LEU*     3.9    24.2    -      -       +      +
     90A  ASP*     3.7    28.5    -      -       +      +
     91A  THR*     3.6    35.8    +      -       +      +
     94A  HIS*     4.6     5.4    -      -       +      -
    118A  PHE*     5.3     1.3    -      -       -      -
    158A  PHE      3.0    17.1    +      -       -      +
    159A  SER*     3.7     5.8    -      -       -      +
    161A  MET*     1.3    75.9    -      -       -      +
    163A  ALA*     1.3    62.4    +      -       -      +
    165A  LEU*     3.3     7.7    +      -       +      +
    166A  LYS*     3.0    54.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 163 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    159A  SER      3.1    16.2    +      -       -      +
    160A  HIS      3.7     1.3    -      -       -      +
    161A  MET      3.3     0.2    -      -       -      -
    162A  LEU*     1.3    76.7    -      -       -      +
    164A  GLU*     1.3    58.0    +      -       -      +
    166A  LYS*     3.3     8.2    +      -       -      +
    167A  GLY      2.9    23.0    +      -       -      -
    239A  PHE*     3.6    13.6    -      -       +      -
    297A  CYS      6.0     0.9    -      -       -      +
    300A  LEU*     3.6    31.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 164 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114A  TYR*     2.7    35.6    +      -       +      +
    118A  PHE*     4.0     9.4    -      -       -      -
    160A  HIS      3.0    17.0    +      -       -      +
    161A  MET      3.6     3.1    -      -       -      +
    163A  ALA*     1.3    74.5    -      -       -      +
    165A  LEU*     1.3    66.1    +      -       -      +
    167A  GLY*     3.0     2.3    +      -       -      -
    168A  ILE*     3.0    28.8    +      -       +      +
    199A  ILE*     5.6     0.7    -      -       -      +
    231A  THR*     3.9    18.3    +      -       +      +
    233A  ASN*     5.2     5.5    +      -       -      -
    237A  SER*     2.6    30.9    +      -       -      +
    239A  PHE*     3.7    27.4    -      -       +      -
    240A  GLU*     3.6    17.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 165 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91A  THR*     4.7     7.0    -      -       +      -
     94A  HIS*     3.7    29.8    -      -       +      -
     95A  LEU*     4.0    25.1    -      -       +      -
     98A  ILE*     3.9    15.5    -      -       +      -
    114A  TYR*     3.4    13.8    +      -       +      +
    115A  PHE*     4.8     2.7    -      -       +      -
    118A  PHE*     3.9    36.1    -      -       +      -
    161A  MET      2.9    18.0    +      -       -      +
    162A  LEU*     3.6     8.7    -      -       +      +
    164A  GLU*     1.3    76.3    -      -       -      +
    166A  LYS*     1.3    57.8    -      -       -      +
    168A  ILE      3.4     0.3    +      -       -      -
    169A  PHE*     2.8    43.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 166 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90A  ASP*     4.3    17.2    +      -       -      -
     94A  HIS*     3.9    40.4    -      -       +      +
    162A  LEU*     3.0    50.6    +      -       +      +
    163A  ALA*     3.8     6.5    -      -       -      +
    165A  LEU*     1.3    73.3    -      -       -      +
    167A  GLY*     1.3    61.9    +      -       -      +
    169A  PHE      4.2     0.4    -      -       -      -
    170A  PRO*     3.0    32.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 167 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    163A  ALA      2.9    14.6    +      -       -      -
    164A  GLU      3.0     4.4    +      -       -      -
    166A  LYS*     1.3    77.0    -      -       -      +
    168A  ILE*     1.3    65.0    +      -       -      +
    170A  PRO*     3.8     9.6    -      -       -      +
    175A  GLN*     5.3     2.4    -      -       -      +
    179A  PHE*     3.8    18.0    -      -       -      -
    239A  PHE*     4.2    16.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 168 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114A  TYR*     3.9    25.6    -      -       +      -
    164A  GLU*     3.0    19.3    +      -       +      +
    165A  LEU      4.0     2.0    -      -       -      +
    167A  GLY*     1.3    79.3    -      -       -      +
    169A  PHE*     1.3    65.4    +      -       +      +
    170A  PRO*     3.4     4.0    -      -       -      +
    174A  PHE*     3.5    34.6    -      -       +      -
    175A  GLN*     2.8    30.5    +      -       -      -
    176A  GLY*     4.3     7.4    -      -       -      +
    179A  PHE*     3.8    26.7    -      -       +      -
    198A  THR*     3.9    20.4    -      -       +      -
    237A  SER*     5.6     0.7    -      -       -      -
    238A  VAL*     4.1     8.3    -      -       +      -
    239A  PHE*     4.3     7.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 169 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94A  HIS*     2.7    21.5    +      -       -      +
     98A  ILE*     3.7    23.1    -      -       +      -
    102A  TYR*     4.1     2.2    -      -       -      -
    109A  LEU*     3.9    29.8    -      -       +      -
    112A  ASN*     4.7     1.8    -      -       -      -
    114A  TYR*     3.8    25.8    -      +       -      -
    115A  PHE*     4.0    19.5    -      +       +      -
    165A  LEU*     2.8    30.7    +      -       +      +
    166A  LYS      3.5     2.7    -      -       -      -
    168A  ILE*     1.3    81.1    -      -       +      +
    170A  PRO*     1.3    64.3    -      -       -      +
    171A  SER      3.3     2.5    -      -       -      -
    172A  GLY      3.1    19.7    +      -       -      -
    173A  LEU      3.5     5.6    -      -       -      -
    174A  PHE*     3.4    43.7    -      +       +      -
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il