Contacts of the helix formed by residues 81 - 104 (chain G) in PDB entry 5LN3


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 LEU 81 (chain G).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19F  ILE*     5.2    14.4    -      -       +      -
     22F  ILE*     5.6     7.0    -      -       +      -
    117F  GLN*     5.7     2.5    -      -       -      +
    152F  ASN*     5.1     9.4    -      -       -      +
     80G  GLY*     1.4    71.3    -      -       -      -
     82G  LEU*     1.4    70.3    +      -       +      +
     83G  ALA*     3.9    13.0    -      -       +      +
     84G  ASP*     3.1    33.1    +      -       +      +
     85G  ALA*     3.3     8.2    +      -       -      +
    130G  ARG*     6.2     1.6    -      -       -      +
    133G  GLY*     3.9     4.8    +      -       -      +
    134G  CYS*     3.2    25.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 82 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    153F  TYR*     3.8    23.6    -      -       +      +
    154F  PHE*     4.7    14.1    -      -       +      -
     64G  ASN*     3.6    29.2    -      -       +      -
     65G  LYS      3.5    24.0    -      -       -      +
     66G  ARG*     5.2     0.7    -      -       -      -
     68G  PHE*     3.6    27.1    -      -       +      -
     78G  VAL*     5.8     3.1    -      -       +      -
     80G  GLY      3.7     3.4    +      -       -      -
     81G  LEU*     1.4    75.5    -      -       +      +
     83G  ALA*     1.4    66.2    +      -       -      +
     85G  ALA*     3.2     6.5    +      -       +      +
     86G  ARG*     3.2    19.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 83 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117F  GLN*     4.1    21.4    -      -       +      +
    150F  SER      4.9     2.7    -      -       -      +
    151F  ALA*     4.1    17.9    -      -       +      +
    152F  ASN*     5.0     3.4    -      -       -      +
    153F  TYR*     4.7    11.0    -      -       +      -
     81G  LEU*     3.5    10.8    -      -       +      +
     82G  LEU*     1.4    64.3    -      -       -      +
     84G  ASP*     1.3    69.7    +      -       -      +
     86G  ARG*     3.4     7.2    +      -       -      +
     87G  SER*     3.2    24.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 84 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117F  GLN*     4.1    10.9    -      -       -      +
    121F  GLN*     3.6    27.6    -      -       -      +
     81G  LEU*     3.1    30.5    +      -       +      +
     83G  ALA*     1.3    78.4    -      -       -      +
     85G  ALA*     1.4    63.4    +      -       -      +
     87G  SER*     3.1    10.3    +      -       -      -
     88G  LEU*     3.0    18.5    +      -       -      +
    130G  ARG*     4.6     8.0    +      -       -      -
    131G  PRO      5.0     2.4    -      -       -      +
    132G  PHE*     3.8    26.8    -      -       +      -
    133G  GLY      5.1     1.9    +      -       -      +
    134G  CYS*     3.9    17.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 85 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68G  PHE*     5.4     4.3    -      -       +      -
     78G  VAL*     3.7    39.3    -      -       +      -
     81G  LEU      3.3    11.6    +      -       -      +
     82G  LEU*     3.2    12.9    +      -       +      +
     84G  ASP*     1.4    76.1    -      -       -      +
     86G  ARG*     1.4    62.9    +      -       -      +
     88G  LEU*     3.3     4.2    +      -       -      +
     89G  ALA*     3.1    25.4    +      -       -      +
    134G  CYS*     3.8     2.6    -      -       -      -
    136G  PHE*     3.7    16.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 86 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1197  GLU*     5.3     1.4    -      -       -      +
    1207  GLU*     2.8    41.6    +      -       -      +
    107F  ARG*     4.9     4.0    -      -       -      +
    110F  SER*     6.0     7.1    -      -       -      -
    114F  SER*     5.7     2.0    -      -       -      +
    153F  TYR*     4.2    20.9    -      -       +      +
     63G  SER      5.0     1.1    +      -       -      -
     68G  PHE*     3.5    35.1    -      -       +      -
     82G  LEU*     3.2    11.2    +      -       +      +
     83G  ALA*     3.6    10.8    -      -       -      +
     84G  ASP      3.3     0.2    -      -       -      -
     85G  ALA*     1.4    79.3    -      -       -      +
     87G  SER*     1.4    55.5    +      -       -      +
     89G  ALA*     3.3     9.2    +      -       -      +
     90G  ASP*     2.9    57.2    +      -       -      +
     93G  ARG*     3.4    32.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 87 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114F  SER*     4.6    10.4    +      -       -      -
    117F  GLN*     4.0    20.6    -      -       -      +
    118F  ILE*     4.3    15.7    -      -       -      +
    121F  GLN*     4.1    18.0    +      -       -      -
     83G  ALA      3.2    13.7    +      -       -      -
     84G  ASP*     3.1    10.9    +      -       -      -
     86G  ARG*     1.4    73.4    -      -       -      +
     88G  LEU*     1.3    64.8    +      -       -      +
     89G  ALA      3.4     0.2    +      -       -      -
     90G  ASP*     3.9     8.5    +      -       -      +
     91G  ILE*     3.2    24.1    +      -       -      +
    132G  PHE*     4.8     2.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 88 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76G  MET*     4.9     8.1    -      -       +      -
     84G  ASP      3.0     7.4    +      -       -      +
     85G  ALA      3.3     7.6    +      -       -      +
     87G  SER*     1.3    77.5    -      -       -      +
     89G  ALA*     1.3    64.9    +      -       -      +
     91G  ILE*     3.4    11.6    +      -       -      +
     92G  ALA*     3.1    19.6    +      -       +      +
    116G  VAL*     3.9    37.9    -      -       +      -
    119G  TYR*     4.1    15.9    -      -       +      -
    120G  VAL*     5.1     4.0    -      -       +      -
    132G  PHE*     3.7    37.3    -      -       +      -
    136G  PHE*     3.4    43.7    -      -       +      -
    152G  ILE*     6.0     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 89 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68G  PHE*     5.4     8.7    -      -       +      -
     69G  ASN      5.5     0.9    -      -       -      +
     70G  VAL*     5.1     1.4    -      -       +      +
     76G  MET*     4.5    18.2    -      -       -      -
     85G  ALA      3.1    15.8    +      -       -      +
     86G  ARG*     3.3    11.2    +      -       -      +
     88G  LEU*     1.3    81.8    -      -       -      +
     90G  ASP*     1.4    65.2    +      -       -      +
     92G  ALA*     3.2     8.1    +      -       -      +
     93G  ARG*     3.1    42.8    +      -       -      +
    136G  PHE*     5.0     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 90 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114F  SER*     4.3    13.5    +      -       -      -
     86G  ARG*     2.9    59.9    +      -       -      +
     87G  SER*     4.3     5.5    +      -       -      +
     88G  LEU      3.5     0.4    -      -       -      -
     89G  ALA*     1.4    74.6    -      -       -      +
     91G  ILE*     1.4    62.4    +      -       +      +
     93G  ARG*     3.6    17.3    +      -       -      +
     94G  GLU*     3.3    22.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 91 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118F  ILE*     5.4    11.9    -      -       +      -
     87G  SER      3.2    24.5    -      -       -      +
     88G  LEU*     3.5    10.8    -      -       -      +
     90G  ASP*     1.4    73.3    -      -       +      +
     92G  ALA*     1.4    60.4    +      -       -      +
     94G  GLU*     3.1     8.5    +      -       +      +
     95G  GLU*     2.9    49.1    +      -       +      +
    119G  TYR*     3.6    36.6    -      -       +      +
    132G  PHE*     5.4     2.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 92 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70G  VAL*     5.0     5.2    -      -       +      -
     76G  MET*     5.1    11.4    -      -       +      -
     88G  LEU*     3.1    13.2    +      -       +      +
     89G  ALA*     3.2    12.3    +      -       -      +
     91G  ILE*     1.4    79.7    -      -       -      +
     93G  ARG*     1.4    57.6    -      -       -      +
     95G  GLU*     3.3    14.1    +      -       -      +
     96G  ALA*     2.9    29.7    +      -       -      +
    112G  LEU*     4.2    16.9    -      -       +      +
    116G  VAL*     4.9    15.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 93 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1177  ILE      5.5     0.9    -      -       -      +
    1187  ASP*     4.4    12.6    -      -       -      +
    1197  GLU*     4.0    25.5    -      -       -      +
    1207  GLU      4.0     0.4    -      -       -      +
     68G  PHE*     4.2     6.7    -      -       -      +
     69G  ASN*     2.9    58.8    +      -       -      +
     70G  VAL*     3.9    10.5    -      -       +      +
     71G  ASP*     3.2    34.7    -      -       -      +
     86G  ARG*     3.4    41.9    -      -       -      +
     89G  ALA*     3.1    23.4    +      -       -      +
     90G  ASP*     3.8    16.9    +      -       -      +
     92G  ALA*     1.4    78.6    -      -       -      +
     94G  GLU*     1.4    54.4    +      -       -      +
     96G  ALA*     3.3     0.9    -      -       -      +
     97G  SER*     2.9    36.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 94 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1147  GLN*     5.1     9.8    +      -       -      +
    1187  ASP*     4.7    10.5    +      -       -      +
     90G  ASP      3.3    12.1    +      -       -      +
     91G  ILE*     3.1    12.2    +      -       -      +
     93G  ARG*     1.4    76.5    -      -       -      +
     95G  GLU*     1.3    62.6    +      -       +      +
     97G  SER*     3.3     7.9    +      -       -      -
     98G  ASN*     3.0    41.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 95 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91G  ILE*     2.9    36.8    +      -       +      +
     92G  ALA*     3.6    13.4    -      -       -      +
     94G  GLU*     1.3    76.2    -      -       +      +
     96G  ALA*     1.3    61.2    +      -       -      +
     98G  ASN*     3.6    11.4    +      -       -      +
     99G  PHE*     3.4    19.6    +      -       -      +
    112G  LEU*     6.2     0.4    -      -       +      -
    115G  ARG*     5.3    20.5    -      -       +      +
    116G  VAL*     5.8     2.6    -      -       -      +
    119G  TYR*     5.5     8.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 96 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70G  VAL*     5.0     0.2    -      -       +      -
     71G  ASP*     3.4    24.7    -      -       -      +
     92G  ALA      2.9    13.5    +      -       -      +
     93G  ARG*     3.3    10.5    -      -       -      +
     95G  GLU*     1.3    74.7    -      -       -      +
     97G  SER*     1.3    57.6    +      -       -      +
     99G  PHE*     3.2     7.5    -      -       -      +
    100G  ARG*     2.9    28.9    +      -       -      +
    107G  ILE*     4.2    18.8    -      -       +      +
    112G  LEU*     4.1    17.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 97 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1147  GLN*     4.2    15.3    -      -       -      -
    1177  ILE*     3.6    30.9    +      -       -      +
    1187  ASP*     3.7    12.7    +      -       -      -
     71G  ASP*     4.0     5.5    +      -       -      -
     93G  ARG      2.9    19.1    +      -       -      -
     94G  GLU*     3.4    12.3    -      -       -      -
     96G  ALA*     1.3    72.9    -      -       -      +
     98G  ASN*     1.4    64.9    +      -       -      +
    100G  ARG*     3.2     8.6    +      -       -      +
    101G  SER*     3.1    28.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 98 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1147  GLN*     3.5    18.9    +      -       -      +
     94G  GLU*     3.0    32.7    +      -       -      +
     95G  GLU*     3.6    10.3    +      -       -      +
     96G  ALA      3.4     0.2    -      -       -      -
     97G  SER*     1.4    74.0    -      -       -      +
     99G  PHE*     1.3    56.1    +      -       -      +
    101G  SER*     4.0     4.0    -      -       -      -
    102G  ASN*     3.0    31.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 99 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1001  HIS*     3.8    22.4    -      +       -      -
    1041  LEU*     4.1    14.6    -      -       +      -
     95G  GLU      3.4     9.6    +      -       -      +
     96G  ALA*     3.2    11.6    +      -       -      +
     97G  SER      3.2     0.2    -      -       -      -
     98G  ASN*     1.3    78.4    -      -       -      +
    100G  ARG*     1.4    60.0    +      -       -      +
    102G  ASN*     3.1     4.2    +      -       -      +
    103G  PHE*     2.8    67.4    +      +       +      +
    105G  TYR*     4.6    12.1    -      +       +      -
    107G  ILE*     3.8    41.7    -      -       +      -
    108G  PRO*     4.5     3.8    -      -       +      -
    111G  HIS*     3.9    23.6    -      +       -      -
    115G  ARG*     5.3     5.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 100 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1177  ILE*     4.0    40.5    -      -       +      +
     71G  ASP*     3.8    31.9    -      -       -      +
     72G  ARG*     4.0    16.6    +      -       -      +
     73G  HIS*     3.8     5.0    +      -       -      +
     96G  ALA      2.9    16.4    +      -       -      +
     97G  SER*     3.2     7.2    +      -       -      +
     99G  PHE*     1.4    76.2    -      -       -      +
    101G  SER*     1.4    57.0    +      -       -      +
    104G  GLY*     2.9    27.2    +      -       -      -
    105G  TYR      3.1    25.5    -      -       -      +
    106G  ASN*     3.5    30.2    +      -       -      +
    107G  ILE*     4.9     5.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 101 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1151  SER*     4.6     4.3    +      -       -      -
    1107  GLN*     4.1    38.2    +      -       -      +
    1137  GLY      5.9     0.2    -      -       -      -
    1147  GLN*     5.3     8.9    +      -       -      +
    1177  ILE*     5.0     8.0    -      -       -      +
     97G  SER      3.1    14.8    +      -       -      -
     98G  ASN*     4.0     4.3    -      -       -      -
    100G  ARG*     1.4    76.7    -      -       -      +
    102G  ASN*     1.3    63.1    +      -       -      +
    104G  GLY*     3.6     9.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 102 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1151  SER*     3.2    27.0    -      -       -      -
    1161  LEU*     4.7    10.6    -      -       -      +
    1191  GLU*     4.6    20.9    -      -       -      +
    1107  GLN*     5.5     1.8    -      -       -      -
     98G  ASN      3.0    20.9    +      -       -      +
     99G  PHE*     3.1     5.5    +      -       -      +
    101G  SER*     1.3    75.3    -      -       -      +
    103G  PHE*     1.3    93.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 103 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     961  GLN*     5.3     9.2    -      -       +      -
    1001  HIS*     3.1    48.2    -      +       +      +
    1111  HIS*     3.3    20.8    -      -       -      +
    1121  THR*     3.4    25.0    +      -       +      +
    1151  SER*     4.6     1.6    -      -       -      -
    1161  LEU*     4.0    31.0    -      -       +      -
     99G  PHE*     2.8    50.9    +      +       +      +
    102G  ASN*     1.3   103.9    -      -       -      +
    104G  GLY*     1.4    56.9    +      -       -      +
    105G  TYR*     3.3     8.4    +      -       +      +
    115G  ARG*     6.3     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 104 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1111  HIS*     3.1    32.5    +      -       -      -
    1151  SER*     4.8     4.7    -      -       -      -
    100G  ARG      2.9    19.2    +      -       -      -
    101G  SER*     3.8     9.0    -      -       -      -
    102G  ASN      3.3     1.6    -      -       -      -
    103G  PHE*     1.4    76.4    -      -       -      +
    105G  TYR*     1.4    56.0    +      -       -      +
----------------------------------------------------------
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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