Contacts of the helix formed by residues 129 - 150 (chain B) in PDB entry 3FWQ


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 THR 129 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127B  THR*     5.8     2.7    -      -       +      -
    128B  LEU*     1.3    78.7    -      -       -      +
    130B  ASP*     1.3    65.3    +      -       -      +
    131B  TYR*     3.5     9.8    +      -       -      +
    132B  ASP*     2.9    41.7    +      -       -      +
    133B  ILE*     3.1    10.7    +      -       -      +
    291B  HIS*     5.3     4.9    -      -       +      -
    292B  LEU*     4.0     2.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 130 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129B  THR*     1.3    72.2    -      -       -      +
    131B  TYR*     1.3    62.9    +      -       -      +
    133B  ILE*     3.5     4.8    +      -       -      +
    134B  ARG*     2.8    62.2    +      -       -      +
    291B  HIS*     3.2    30.9    -      -       +      +
    292B  LEU*     3.5    28.8    -      -       +      +
    294B  SER*     5.2     3.1    +      -       -      -
    323B  TYR*     4.8     3.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 131 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129B  THR*     3.1     9.8    +      -       -      +
    130B  ASP*     1.3    78.4    -      -       -      +
    132B  ASP*     1.3    61.8    +      -       -      +
    134B  ARG*     3.5    10.8    +      -       -      +
    135B  PHE*     3.0    23.9    +      -       -      +
    169B  ARG*     3.7    16.4    -      -       -      -
    326B  THR*     5.1     9.4    +      -       +      -
    327B  VAL*     3.8    29.0    +      -       +      +
    329B  LYS      4.9     0.3    -      -       -      -
    330B  ASP*     2.8    46.7    +      -       -      +
    331B  GLN      4.7     0.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 132 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127B  THR*     3.8    20.0    -      -       -      +
    128B  LEU*     4.0    13.9    -      -       +      -
    129B  THR*     2.9    38.9    +      -       -      +
    131B  TYR*     1.3    78.6    -      -       -      +
    133B  ILE*     1.3    60.3    +      -       -      +
    135B  PHE*     4.6     2.9    -      -       -      -
    136B  TYR*     2.9    46.8    +      -       +      -
    166B  HIS*     5.6     3.0    +      -       -      -
    169B  ARG*     3.0    26.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 133 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121B  PHE*     5.7     0.2    -      -       -      -
    128B  LEU*     4.0    26.2    -      -       +      +
    129B  THR      3.1     8.5    +      -       -      +
    130B  ASP*     3.9     6.3    -      -       -      +
    132B  ASP*     1.3    74.8    -      -       -      +
    134B  ARG*     1.3    57.9    +      -       -      +
    136B  TYR*     4.2     1.9    -      -       -      +
    137B  MET*     2.9    35.6    +      -       +      +
    222B  LEU*     4.0    12.1    -      -       +      -
    225B  MET*     3.8    54.8    -      -       +      +
    226B  ILE*     4.2     9.2    -      -       +      +
    292B  LEU*     3.8    30.5    -      -       +      -
    323B  TYR*     3.5    16.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 134 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130B  ASP*     2.8    41.5    +      -       -      +
    131B  TYR*     3.6    11.9    -      -       -      +
    133B  ILE*     1.3    79.0    -      -       -      +
    135B  PHE*     1.3    63.2    +      -       -      +
    138B  TYR*     3.3     3.8    +      -       -      +
    292B  LEU      5.6     0.2    +      -       -      -
    294B  SER*     3.3    17.4    +      -       -      -
    296B  GLU*     2.7    37.0    +      -       -      +
    322B  PRO      4.7     1.4    +      -       -      -
    323B  TYR*     2.7    67.9    +      -       +      +
    324B  PHE*     3.2    24.8    -      -       -      -
    326B  THR*     6.2     0.4    -      -       -      +
    327B  VAL*     4.2    20.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 135 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131B  TYR*     3.0    19.2    +      -       +      +
    132B  ASP*     3.8     2.7    -      -       -      +
    134B  ARG*     1.3    76.2    -      -       -      +
    136B  TYR*     1.3    86.0    +      +       -      +
    138B  TYR*     3.4     6.4    +      -       +      +
    139B  GLU*     3.3    47.0    +      -       +      +
    169B  ARG*     3.6    56.1    -      -       +      +
    327B  VAL*     3.5    19.3    -      -       +      +
    330B  ASP*     3.5    42.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 136 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121B  PHE*     3.8    31.2    -      +       +      -
    127B  THR      5.9     1.6    -      -       -      -
    128B  LEU*     4.8     5.2    -      -       +      -
    132B  ASP*     2.9    34.8    +      -       +      +
    133B  ILE      4.2     0.4    -      -       -      +
    135B  PHE*     1.3   100.3    -      +       -      +
    137B  MET*     1.3    65.9    +      -       -      +
    139B  GLU*     3.6     1.7    +      -       +      -
    140B  ILE*     3.2    22.5    +      -       -      +
    164B  ILE*     3.6    34.2    -      -       +      +
    165B  ASP      3.7     2.1    +      -       -      -
    166B  HIS*     4.1    11.1    -      +       -      -
    169B  ARG*     3.5    45.3    -      -       -      -
    170B  LYS      4.7     0.4    -      -       -      -
    171B  LEU*     3.4    33.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with MET 137 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121B  PHE*     5.2     0.4    -      -       -      -
    133B  ILE*     2.9    29.4    +      -       +      +
    134B  ARG      4.3     0.2    -      -       -      -
    135B  PHE      3.4     0.2    -      -       -      -
    136B  TYR*     1.3    77.9    -      -       -      +
    138B  TYR*     1.3    55.3    +      -       -      +
    140B  ILE*     3.3     9.4    +      -       -      +
    141B  LEU*     2.8    30.1    +      -       -      +
    218B  LEU*     3.7    40.8    -      -       +      +
    221B  MET*     5.1     3.1    -      -       -      -
    222B  LEU*     3.9    33.0    -      -       +      -
    225B  MET*     4.0    20.6    -      -       +      -
    300B  PHE*     3.6    29.4    -      -       +      -
    304B  LEU*     4.5     0.9    -      -       +      -
    323B  TYR*     4.5     2.2    -      -       +      -
    324B  PHE*     3.5    19.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 138 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    316A  ARG*     4.3    16.5    +      -       -      -
    134B  ARG      3.3     3.7    +      -       -      +
    135B  PHE*     3.6    11.2    -      -       -      +
    136B  TYR      3.3     0.6    -      -       -      -
    137B  MET*     1.3    75.3    -      -       -      +
    139B  GLU*     1.3    59.1    +      -       +      +
    141B  LEU*     3.1     5.8    +      -       +      +
    142B  LYS*     2.8    63.5    +      -       -      +
    316B  ARG*     4.6     4.2    +      -       -      -
    319B  MET*     3.4    59.2    +      -       +      +
    324B  PHE*     3.5    33.8    -      +       +      -
    327B  VAL*     4.8     4.0    -      -       +      -
    328B  VAL*     3.5    32.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 139 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93B  ASN*     2.5    53.3    +      -       -      +
    135B  PHE*     3.3    46.9    +      -       +      +
    136B  TYR*     3.8     6.7    -      -       +      +
    137B  MET      3.4     0.2    -      -       -      -
    138B  TYR*     1.3    78.4    -      -       -      +
    140B  ILE*     1.3    61.8    +      -       -      +
    142B  LYS*     3.2    28.4    +      -       -      +
    143B  ALA*     3.3    12.0    +      -       -      +
    169B  ARG      5.4     3.3    -      -       -      +
    170B  LYS*     5.9     0.9    -      -       -      -
    171B  LEU*     3.7    29.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 140 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121B  PHE*     3.8    22.2    -      -       +      -
    136B  TYR      3.2    17.1    +      -       -      +
    137B  MET*     3.4    10.8    -      -       -      +
    139B  GLU*     1.3    77.1    -      -       -      +
    141B  LEU*     1.3    58.2    +      -       -      +
    143B  ALA*     3.0     7.8    +      -       -      +
    144B  LEU*     2.9    37.8    +      -       +      +
    157B  VAL*     5.2     4.0    -      -       +      -
    162B  VAL*     4.1    17.3    -      -       +      -
    171B  LEU*     3.6    24.0    -      -       +      -
    173B  LEU*     5.4     5.8    -      -       +      -
    218B  LEU*     3.6    24.7    -      -       +      -
    221B  MET*     3.8    24.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 141 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137B  MET*     2.8    13.2    +      -       +      +
    138B  TYR*     3.1     9.4    +      -       -      +
    140B  ILE*     1.3    77.4    -      -       -      +
    142B  LYS*     1.3    56.3    +      -       -      +
    144B  LEU*     3.8     5.0    -      -       +      +
    145B  ASP*     2.9    32.4    +      -       -      +
    215B  MET*     3.9     3.6    -      -       +      -
    218B  LEU*     3.5    27.1    -      -       +      -
    300B  PHE*     4.3     3.1    -      -       +      -
    315B  ALA*     3.8    22.3    -      -       +      +
    318B  ALA*     3.6    28.3    -      -       +      -
    319B  MET*     3.8    22.2    -      -       +      +
    324B  PHE*     3.5    40.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 142 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    316A  ARG*     5.4     8.3    -      -       -      +
     92B  PRO*     3.9    20.7    -      -       +      +
     93B  ASN*     3.8    17.7    -      -       -      +
    138B  TYR*     2.8    44.9    +      -       +      +
    139B  GLU*     3.2    29.0    +      -       -      +
    141B  LEU*     1.3    72.0    -      -       -      +
    143B  ALA*     1.3    58.0    +      -       -      +
    145B  ASP*     3.9     2.2    -      -       -      +
    146B  TYR*     3.1    30.1    +      -       -      +
    319B  MET*     4.0    23.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 143 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92B  PRO      3.5    13.0    +      -       -      +
     93B  ASN*     3.6    24.2    -      -       +      +
     94B  ILE*     3.8    14.1    -      -       +      +
    139B  GLU      3.3     7.9    +      -       -      +
    140B  ILE*     3.0    11.8    +      -       -      +
    142B  LYS*     1.3    76.9    -      -       -      +
    144B  LEU*     1.3    65.4    +      -       -      +
    146B  TYR      3.6     0.2    +      -       -      -
    147B  CYS*     3.2    25.6    +      -       -      +
    171B  LEU*     5.2     0.4    -      -       +      -
    173B  LEU*     4.2    18.2    -      -       +      -
    176B  TRP*     4.9     0.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 144 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    140B  ILE*     2.9    28.5    +      -       +      +
    141B  LEU*     3.9     5.8    -      -       +      +
    143B  ALA*     1.3    73.1    -      -       -      +
    145B  ASP*     1.3    60.1    +      -       -      +
    147B  CYS*     3.3     5.0    +      -       -      -
    148B  HIS*     2.8    48.0    +      -       +      +
    154B  HIS*     4.6     2.7    -      -       +      -
    157B  VAL*     3.8    20.9    -      -       +      -
    173B  LEU*     3.8    23.6    -      -       +      -
    214B  ASP*     4.1    30.3    -      -       +      +
    215B  MET*     4.4     9.2    -      -       -      -
    218B  LEU*     3.8    30.3    -      -       +      -
    315B  ALA*     4.6     4.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 145 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12B  TYR*     3.3    26.1    +      -       -      -
    141B  LEU      2.9    17.9    +      -       -      +
    142B  LYS*     3.9     4.5    -      -       -      +
    144B  LEU*     1.3    76.5    -      -       -      +
    146B  TYR*     1.3    58.7    +      -       -      +
    148B  HIS*     3.6     4.5    -      -       -      +
    149B  SER*     2.8    31.0    +      -       -      -
    315B  ALA*     3.6    15.5    -      -       +      +
    316B  ARG*     3.7    44.6    +      -       -      +
    319B  MET*     4.3     8.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 146 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    142A  LYS*     5.8     7.2    -      -       -      -
    170A  LYS*     3.9    24.9    +      -       -      -
     87B  ASN      4.6     2.3    +      -       -      -
     88B  LEU*     4.0    15.0    -      -       +      -
     89B  ARG      4.7     1.4    +      -       -      -
     90B  GLY      4.5     4.4    -      -       -      -
     91B  GLY*     3.4    29.8    +      -       -      -
     92B  PRO*     3.5    24.7    -      -       +      -
     94B  ILE*     4.0     9.6    -      -       +      -
    142B  LYS      3.1    17.2    +      -       -      +
    143B  ALA      4.1     3.1    -      -       -      +
    144B  LEU      3.3     0.2    -      -       -      -
    145B  ASP*     1.3    81.0    +      -       -      +
    147B  CYS*     1.3    59.1    +      -       -      +
    149B  SER*     2.6    23.7    +      -       -      -
    150B  MET*     3.0    50.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with CYS 147 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88B  LEU*     3.7    21.5    -      -       +      -
     94B  ILE*     4.4     1.3    -      -       +      -
    143B  ALA      3.2    13.6    +      -       -      +
    144B  LEU*     3.4    19.3    -      -       -      -
    146B  TYR*     1.3    75.0    -      -       -      +
    148B  HIS*     1.3    69.2    +      -       -      +
    150B  MET      3.2     6.4    +      -       -      -
    151B  GLY      3.2     0.2    +      -       -      -
    152B  ILE*     2.7    46.5    +      -       +      +
    154B  HIS*     4.6     5.2    -      -       -      -
    176B  TRP*     3.6    38.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 148 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12B  TYR*     3.4    30.3    -      -       +      +
    144B  LEU*     2.8    35.2    +      -       +      +
    145B  ASP      3.6     4.0    -      -       -      +
    147B  CYS*     1.3    81.0    -      -       -      +
    149B  SER*     1.3    57.7    +      -       -      +
    151B  GLY      3.0    14.0    +      -       -      -
    152B  ILE      3.4    17.0    -      -       -      -
    211B  TYR*     3.4    45.5    -      -       +      +
    214B  ASP*     2.9    26.2    +      -       +      +
    215B  MET*     4.0    17.5    -      -       -      -
    337B   CL      2.7    27.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 149 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    332A  ALA*     3.5    22.0    -      -       -      +
     12B  TYR*     3.5    33.6    -      -       -      -
     15B  VAL*     3.6    12.2    -      -       -      +
     19B  ARG*     5.3     1.7    +      -       -      -
    145B  ASP*     2.8    16.3    +      -       -      -
    146B  TYR*     2.6    28.5    +      -       -      -
    148B  HIS*     1.3    75.2    -      -       -      +
    150B  MET*     1.3    74.2    +      -       -      +
    151B  GLY      3.2     2.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET 150 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170A  LYS*     5.4     5.4    -      -       -      -
    332A  ALA*     4.5     8.3    -      -       +      -
    334A  MET*     4.5     4.7    -      -       +      -
     15B  VAL*     4.5     1.6    -      -       -      -
     16B  ASN*     4.2     2.0    -      -       -      -
     19B  ARG*     3.6    29.2    -      -       -      +
     23B  TYR*     2.6    41.6    +      -       -      +
     87B  ASN      4.7     7.4    -      -       -      +
     88B  LEU*     3.8    14.8    -      -       +      -
    146B  TYR*     3.0    53.5    +      -       +      +
    147B  CYS      3.2     5.1    +      -       -      +
    148B  HIS      3.1     0.8    -      -       -      -
    149B  SER*     1.3   107.7    -      -       -      +
    151B  GLY*     1.3    60.6    +      -       -      +
    152B  ILE*     3.3     7.4    +      -       +      +
----------------------------------------------------------
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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