Contacts of the helix formed by residues 100 - 123 (chain B) in PDB entry 4EOZ


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 ASN 100 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98B  ASN      4.1     1.2    -      -       -      -
     99B  ASN*     1.3    82.3    +      -       -      +
    101B  PHE*     1.3    56.7    +      -       -      +
    102B  LEU      3.6     2.2    -      -       -      -
    103B  GLN*     3.5    34.1    +      -       +      +
    104B  THR*     2.6    38.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 101 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93B  VAL*     3.9    19.3    -      -       +      -
     96B  SER*     3.3    28.0    -      -       -      +
     97B  LEU*     3.6    24.2    -      -       +      -
     98B  ASN      4.4     2.9    -      -       -      +
     99B  ASN      3.3     0.6    -      -       -      +
    100B  ASN*     1.3    73.4    -      -       -      +
    102B  LEU*     1.3    86.6    +      -       +      +
    104B  THR*     3.1     2.6    +      -       -      -
    105B  LEU*     2.8    41.1    +      -       +      +
    157B  ILE*     3.9    18.8    -      -       +      -
    160B  HIS*     3.5    27.6    -      +       +      +
    161B  LEU*     3.5    38.6    -      -       +      -
    164B  THR*     4.1     4.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 102 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100B  ASN      3.6     0.4    -      -       -      -
    101B  PHE*     1.3   104.9    -      -       +      +
    103B  GLN*     1.3    53.8    +      -       -      +
    105B  LEU*     3.8     5.2    -      -       +      +
    106B  ASN*     2.8    37.0    +      -       -      +
    161B  LEU*     4.4    12.1    -      -       +      -
    164B  THR*     3.4    21.3    -      -       +      -
    165B  LEU*     4.2    16.8    -      -       +      -
    168B  MSE      3.8    29.8    -      -       +      -
    182B  ALA*     4.1    31.9    -      -       +      +
    186B  ALA*     5.2     2.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 103 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100B  ASN*     3.5    38.4    +      -       +      +
    101B  PHE      3.4     0.2    -      -       -      -
    102B  LEU*     1.3    78.6    -      -       -      +
    104B  THR*     1.3    63.1    +      -       -      +
    106B  ASN*     3.8     5.6    -      -       -      +
    107B  GLN*     2.9    35.5    +      -       +      +
    182B  ALA*     6.1     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 104 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92B  ASP*     4.0    18.4    -      -       +      +
     93B  VAL*     4.2     9.4    -      -       +      -
     96B  SER*     3.5    30.3    -      -       -      +
     99B  ASN      4.3     1.0    +      -       -      -
    100B  ASN*     2.6    26.5    +      -       -      +
    101B  PHE      3.5     0.4    -      -       -      -
    103B  GLN*     1.3    81.4    +      -       -      +
    105B  LEU*     1.3    65.3    +      -       -      +
    107B  GLN*     3.2     5.9    +      -       +      +
    108B  ALA*     3.0    22.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 105 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93B  VAL*     4.2    22.3    -      -       +      +
    101B  PHE*     2.8    34.9    +      -       +      +
    102B  LEU*     3.8     5.6    -      -       +      +
    104B  THR*     1.3    72.6    -      -       -      +
    106B  ASN*     1.3    65.6    +      -       -      +
    108B  ALA*     3.0     4.3    +      -       -      +
    109B  TRP*     2.9    22.7    +      -       -      +
    147B  PHE*     4.4     5.2    -      -       +      -
    151B  VAL*     4.1    26.0    -      -       +      -
    152B  VAL*     4.3    12.8    -      -       +      -
    157B  ILE*     4.6     5.2    -      -       +      -
    161B  LEU*     4.0    31.4    -      -       +      -
    186B  ALA*     6.1     0.7    -      -       +      -
    189B  MSE      4.2    20.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 106 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102B  LEU      2.8    22.9    +      -       -      +
    103B  GLN*     3.8     6.1    -      -       -      +
    105B  LEU*     1.3    75.6    -      -       -      +
    107B  GLN*     1.3    57.5    +      -       -      +
    109B  TRP*     3.4    21.7    +      -       -      +
    110B  ASN*     3.0    49.2    +      -       -      +
    185B  ASN*     3.4    46.0    -      -       +      +
    186B  ALA*     5.0     0.5    +      -       -      -
    189B  MSE      5.6     1.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 107 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47B  LYS*     5.8     1.1    -      -       -      -
    103B  GLN*     2.9    25.0    +      -       +      +
    104B  THR*     3.6     8.3    -      -       +      +
    105B  LEU      3.1     0.2    -      -       -      -
    106B  ASN*     1.3    79.2    -      -       -      +
    108B  ALA*     1.3    62.5    +      -       -      +
    110B  ASN*     3.4    10.5    +      -       -      +
    111B  ASP*     3.0    53.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 108 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     89B  VAL*     3.8    28.4    -      -       +      +
     92B  ASP*     6.2     1.6    -      -       +      -
     93B  VAL*     4.1    13.7    -      -       +      -
    104B  THR*     3.0    13.0    +      -       +      +
    105B  LEU      3.0     7.2    +      -       -      +
    107B  GLN*     1.3    79.4    -      -       -      +
    109B  TRP*     1.3    56.1    +      -       -      +
    111B  ASP*     3.4     8.8    +      -       -      +
    112B  HIS*     3.1    30.8    +      -       -      +
    147B  PHE*     3.8     8.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with TRP 109 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105B  LEU      2.9    15.0    +      -       -      +
    106B  ASN*     3.5    22.9    -      -       -      +
    108B  ALA*     1.3    74.0    -      -       -      +
    110B  ASN*     1.3    68.5    +      -       -      +
    112B  HIS*     3.4     7.0    +      -       -      -
    113B  GLN*     3.0    65.9    +      -       +      +
    144B  LEU*     3.6    32.3    -      -       +      -
    147B  PHE*     3.8    27.3    -      +       +      -
    185B  ASN      5.0     1.7    +      -       -      -
    188B  GLN*     5.6     2.2    -      -       -      +
    189B  MSE      3.5    42.6    -      -       +      +
    192B  ILE*     3.9    30.2    -      -       +      +
    193B  LEU*     3.8    18.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 110 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106B  ASN*     3.0    37.1    +      -       -      +
    107B  GLN*     3.9    13.0    +      -       -      +
    108B  ALA      3.4     0.2    -      -       -      -
    109B  TRP*     1.3    84.3    -      -       -      +
    111B  ASP*     1.3    62.0    +      -       -      +
    113B  GLN*     3.2    18.6    -      -       -      +
    114B  THR*     3.0    34.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 111 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47B  LYS*     3.1    38.5    +      -       -      -
    107B  GLN*     3.0    43.8    +      -       -      +
    108B  ALA*     3.7     7.9    -      -       -      +
    109B  TRP      3.3     0.2    -      -       -      -
    110B  ASN*     1.3    78.8    -      -       -      +
    112B  HIS*     1.3    60.4    +      -       +      +
    114B  THR*     2.7    22.8    +      -       -      +
    115B  ALA*     3.0    16.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 112 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81B  VAL*     5.0     2.4    -      -       +      +
     84B  HIS*     6.0     4.0    -      +       +      -
     85B  LEU*     3.9    29.9    -      -       +      +
     89B  VAL*     5.9     2.0    -      -       +      -
    108B  ALA      3.1    17.9    +      -       -      +
    109B  TRP*     3.9     9.9    -      -       -      +
    110B  ASN      3.2     0.2    -      -       -      -
    111B  ASP*     1.3    77.2    -      -       -      +
    113B  GLN*     1.3    63.4    +      -       -      +
    115B  ALA*     3.1     7.2    +      -       +      +
    116B  MSE      2.9    63.8    +      -       +      +
    143B  GLY*     3.2    33.5    +      -       -      -
    144B  LEU*     4.3    12.3    -      -       +      -
    147B  PHE*     3.7    28.5    -      +       +      +
----------------------------------------------------------
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Residues in contact with GLN 113 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109B  TRP*     3.0    61.2    +      -       +      +
    110B  ASN*     3.2    27.5    -      -       -      +
    112B  HIS*     1.3    79.0    +      -       -      +
    114B  THR*     1.3    63.9    +      -       +      +
    116B  MSE      3.5     3.2    +      -       -      +
    117B  VAL*     3.1    29.6    +      -       +      +
    140B  TYR*     3.5    25.4    +      -       -      +
    144B  LEU*     5.5     0.2    -      -       +      -
    192B  ILE*     4.7     9.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 114 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47B  LYS*     6.0     1.6    -      -       -      +
    110B  ASN*     3.0    17.5    +      -       +      +
    111B  ASP*     2.7    24.9    +      -       -      +
    113B  GLN*     1.3    76.2    -      -       +      +
    115B  ALA*     1.3    61.4    +      -       -      +
    117B  VAL*     3.4     7.6    +      -       -      +
    118B  MSE      3.3    31.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 115 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44B  ILE*     4.2    25.8    -      -       +      +
     45B  GLN*     4.8    12.3    -      -       +      +
     84B  HIS*     6.1     2.2    -      -       +      -
    111B  ASP      3.0    17.9    +      -       -      +
    112B  HIS*     3.1     8.7    +      -       +      +
    114B  THR*     1.3    77.0    +      -       -      +
    116B  MSE      1.3    59.8    +      -       +      +
    118B  MSE      3.0    21.9    +      -       -      +
    119B  ILE*     3.0    28.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with MSE 116 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77B  LEU*     5.3     1.3    -      -       +      -
     81B  VAL*     4.2    17.7    -      -       +      -
    112B  HIS*     2.9    49.9    +      -       +      +
    113B  GLN*     3.9     0.4    -      -       -      +
    115B  ALA*     1.3    73.8    -      -       +      +
    117B  VAL*     1.3    60.3    +      -       -      +
    119B  ILE*     3.9    22.0    -      -       +      -
    120B  ARG*     3.0    32.2    +      -       -      +
    139B  VAL*     3.5    44.0    -      -       +      +
    140B  TYR*     3.7    26.3    -      -       +      +
    143B  GLY*     3.7    17.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 117 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    231A  HIS*     3.9    18.3    -      -       +      +
    113B  GLN*     3.1    22.1    +      -       +      +
    114B  THR*     3.7     7.6    -      -       -      +
    115B  ALA      3.2     0.4    -      -       -      -
    116B  MSE      1.3    78.0    -      -       -      +
    118B  MSE      1.3    62.6    +      -       -      +
    120B  ARG*     3.4    28.9    -      -       -      +
    121B  ASP*     3.4    25.8    +      -       -      +
    140B  TYR*     3.9    12.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with MSE 118 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    231A  HIS*     3.4    34.0    +      -       +      +
    232A  GLU      5.5     0.7    -      -       -      -
    233A  MET*     4.1    13.5    -      -       +      -
     44B  ILE*     3.6    33.0    -      -       +      +
     47B  LYS*     5.8     0.7    -      -       -      -
     49B  ASN*     3.6    46.4    -      -       -      +
     54B  PHE*     4.6     0.9    -      -       -      -
    114B  THR*     3.3    23.4    +      -       -      +
    115B  ALA*     3.0     9.8    +      -       -      +
    117B  VAL*     1.3    77.7    -      -       -      +
    119B  ILE*     1.3    56.5    -      -       -      +
    121B  ASP*     3.5     4.3    +      -       -      +
    122B  ILE*     3.1    33.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 119 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41B  ILE*     4.1    29.2    -      -       +      -
     44B  ILE*     4.3    24.0    -      -       +      -
     45B  GLN*     4.8     7.0    -      -       +      +
     77B  LEU*     3.9    26.5    -      -       +      -
     81B  VAL*     4.7     6.1    -      -       +      -
    115B  ALA*     3.0    25.7    +      -       +      +
    116B  MSE      4.0    20.2    -      -       +      +
    118B  MSE      1.3    73.2    -      -       -      +
    120B  ARG*     1.3    66.9    +      -       -      +
    121B  ASP      3.1     1.3    -      -       -      -
    122B  ILE*     3.0     8.8    +      -       -      +
    123B  LEU*     3.0    30.6    +      -       +      +
    139B  VAL*     4.3     5.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 120 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116B  MSE      3.0    16.9    +      -       -      +
    117B  VAL*     3.4    37.1    -      -       -      +
    119B  ILE*     1.3    77.2    -      -       -      +
    121B  ASP*     1.3    83.2    +      -       -      +
    123B  LEU*     3.2     4.7    -      -       -      +
    124B  MSE      3.0    27.4    +      -       +      +
    127B  ASP*     4.4    11.6    -      -       -      +
    139B  VAL*     3.7    29.3    -      -       +      +
    140B  TYR*     4.3    25.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 121 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227A  ALA*     3.8    13.8    -      -       +      +
    230A  GLU*     5.6     1.6    -      -       -      +
    231A  HIS*     3.0    23.5    +      -       -      +
     54B  PHE*     3.3    15.4    -      -       +      -
     58B  TYR*     4.0     1.2    -      -       -      -
    117B  VAL*     3.4    16.9    +      -       -      +
    118B  MSE      3.5     5.1    +      -       -      +
    119B  ILE      3.1     0.6    -      -       -      -
    120B  ARG*     1.3   107.0    +      -       -      +
    122B  ILE*     1.3    65.3    +      -       -      +
    124B  MSE      2.9    44.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 122 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    233A  MET*     3.6    26.2    -      -       +      -
     37B  LEU*     4.9     4.7    -      -       +      -
     41B  ILE*     6.1     6.3    -      -       +      -
     44B  ILE*     3.7    18.4    -      -       +      -
     54B  PHE*     3.5    24.2    -      -       +      -
     57B  LEU*     3.5    42.4    -      -       +      +
     58B  TYR*     3.5    17.4    -      -       -      +
     61B  ALA*     3.5    14.4    -      -       +      +
    118B  MSE      3.1    18.9    +      -       -      +
    119B  ILE*     3.0     8.5    +      -       -      +
    121B  ASP*     1.3    78.3    -      -       -      +
    123B  LEU*     1.3    66.1    +      -       +      +
    124B  MSE      3.3     0.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 123 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37B  LEU*     4.7     4.5    -      -       +      -
     41B  ILE*     5.2     8.3    -      -       +      -
     61B  ALA*     3.6    26.2    -      -       +      -
     73B  LEU*     4.1    20.4    -      -       +      -
     77B  LEU*     3.8    33.9    -      -       +      -
    119B  ILE*     3.0    21.8    +      -       +      +
    120B  ARG      3.2     5.8    -      -       -      +
    122B  ILE*     1.3    81.2    -      -       +      +
    124B  MSE      1.3    63.3    +      -       -      +
    125B  TYR      3.3     3.1    -      -       -      -
    126B  MSE      3.2    41.7    +      -       +      +
    127B  ASP*     3.3     6.2    +      -       -      +
    139B  VAL*     4.1    11.7    -      -       +      +
----------------------------------------------------------
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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