Contacts of the helix formed by residues 110 - 132 (chain F) in PDB entry 2JG7


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 ILE 110 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    505E  GLN*     5.9     1.3    -      -       -      +
    104F  SER*     4.3     0.2    -      -       -      -
    109F  LYS*     1.3    75.6    -      -       -      +
    111F  TYR*     1.3    66.6    +      -       -      +
    112F  VAL*     3.7    22.9    -      -       +      +
    113F  GLU*     2.9    38.4    +      -       +      +
    114F  GLY*     3.0     9.7    +      -       -      -
    296F  THR*     6.0     0.6    -      -       -      +
    333F  PRO*     3.9    11.9    -      -       +      +
    335F  ASP      5.9     0.4    -      -       -      +
    338F  THR*     3.6    37.2    -      -       +      +
    339F  LEU*     3.8    35.0    -      -       +      +
    340F  TYR      4.0     3.4    -      -       -      +
    341F  GLY*     4.5     8.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 111 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97F  LYS*     3.7    39.3    -      -       -      +
    101F  SER*     3.3    35.9    -      -       -      -
    104F  SER*     3.7    11.4    +      -       -      +
    109F  LYS      3.7     0.6    +      -       -      -
    110F  ILE*     1.3    71.3    -      -       -      +
    112F  VAL*     1.3    65.4    +      -       +      +
    114F  GLY*     2.9    17.8    +      -       -      -
    115F  VAL*     2.9    31.8    +      -       +      +
    333F  PRO      3.2    17.2    +      -       -      +
    334F  TRP*     4.8    16.8    -      +       -      +
    335F  ASP      6.1     0.9    -      -       -      +
    336F  PRO*     6.3     1.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 112 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110F  ILE*     3.7    24.0    -      -       +      +
    111F  TYR*     1.3    88.3    -      -       +      +
    113F  GLU*     1.3    62.5    +      -       +      +
    115F  VAL*     3.5     9.5    +      -       +      +
    116F  GLY*     2.9    22.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 113 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109F  LYS*     4.1    19.7    -      -       +      +
    110F  ILE*     2.9    29.2    +      -       +      +
    112F  VAL*     1.3    80.1    -      -       +      +
    114F  GLY*     1.3    60.6    +      -       -      +
    116F  GLY*     3.6     2.9    -      -       -      +
    117F  GLU*     3.0    28.1    +      -       -      +
    167F  PHE*     6.0     0.2    -      -       -      -
    295F  GLY*     4.5     1.6    -      -       -      -
    296F  THR*     3.0    37.2    +      -       -      +
    300F  ARG*     3.2    26.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 114 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100F  GLY*     3.5    22.9    -      -       -      -
    103F  VAL*     4.2    18.4    -      -       -      +
    104F  SER      4.8     0.7    -      -       -      -
    109F  LYS*     4.1     4.0    -      -       -      +
    110F  ILE      3.0     8.9    +      -       -      -
    111F  TYR      2.9     7.6    +      -       -      -
    113F  GLU*     1.3    75.5    -      -       -      +
    115F  VAL*     1.3    63.1    +      -       -      +
    117F  GLU*     3.4     5.3    +      -       -      +
    118F  VAL*     3.4    24.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 115 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96F  ILE*     3.9    34.3    -      -       +      +
     97F  LYS*     4.6     2.9    -      -       +      -
    100F  GLY*     4.2     4.9    -      -       -      -
    111F  TYR*     2.9    49.9    +      -       +      +
    112F  VAL*     3.6    12.1    -      -       +      +
    114F  GLY*     1.3    74.1    -      -       -      +
    116F  GLY*     1.3    65.0    +      -       -      +
    118F  VAL*     3.1     7.6    +      -       -      +
    119F  GLN*     3.0    21.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 116 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112F  VAL      2.9    16.0    +      -       -      -
    113F  GLU*     3.4     4.2    +      -       -      -
    114F  GLY      3.3     0.4    -      -       -      -
    115F  VAL*     1.3    77.5    -      -       -      +
    117F  GLU*     1.3    60.1    +      -       -      +
    119F  GLN*     3.3    11.1    +      -       -      +
    120F  GLU*     3.1    26.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 117 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103F  VAL*     3.8     5.0    -      -       +      +
    109F  LYS*     2.8    35.2    +      -       -      +
    113F  GLU      3.0    15.5    +      -       -      +
    114F  GLY*     3.6     7.6    -      -       -      +
    115F  VAL      3.2     0.4    -      -       -      -
    116F  GLY*     1.3    74.3    -      -       -      +
    118F  VAL*     1.3    66.3    +      -       -      +
    120F  GLU*     3.2    24.4    +      -       -      +
    121F  TYR*     3.5     4.0    +      -       -      +
    167F  PHE*     2.8    31.6    -      -       +      -
    168F  PRO*     3.7     5.8    -      -       -      +
    169F  VAL*     2.6    36.4    +      -       +      -
    170F  ALA*     2.9    24.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 118 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92F  LEU*     4.3    14.1    -      -       +      +
     96F  ILE*     3.7    30.5    -      -       +      +
     99F  LEU*     3.8    38.4    -      -       +      +
    100F  GLY*     3.9    12.1    -      -       -      +
    103F  VAL*     4.9     0.4    -      -       +      -
    114F  GLY      3.4    14.8    +      -       -      +
    115F  VAL      3.1     8.1    +      -       -      +
    117F  GLU*     1.3    75.2    -      -       -      +
    119F  GLN*     1.3    62.6    +      -       -      +
    121F  TYR*     3.0    15.1    +      -       -      +
    122F  VAL*     3.0    16.9    +      -       +      +
    169F  VAL*     4.4    14.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 119 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93F  ARG*     4.5     8.7    -      -       -      +
     96F  ILE*     3.5    20.8    -      -       +      +
    115F  VAL*     3.0    13.2    +      -       +      +
    116F  GLY*     3.3    14.1    -      -       -      +
    117F  GLU      3.2     0.2    -      -       -      -
    118F  VAL*     1.3    77.7    -      -       -      +
    120F  GLU*     1.3    51.1    +      -       -      +
    122F  VAL*     3.2    20.6    +      -       -      +
    123F  ASP*     2.7    71.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 120 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116F  GLY      3.1    16.4    +      -       -      +
    117F  GLU*     3.2    15.5    +      -       -      +
    119F  GLN*     1.3    74.1    -      -       -      +
    121F  TYR*     1.3    58.6    +      -       -      +
    123F  ASP*     4.6     0.8    -      -       -      +
    124F  VAL*     3.0    31.8    +      -       -      +
    167F  PHE*     5.6     5.6    -      -       +      -
    170F  ALA*     4.0    15.0    -      -       +      +
    174F  TRP*     3.8    31.2    +      -       -      +
    461F  ALA      5.2     7.2    -      -       -      +
    462F  GLU*     5.8     0.7    -      -       -      -
    463F  ILE*     3.7    26.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 121 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88F  ILE*     3.9     3.6    -      -       +      +
     92F  LEU*     3.5    26.0    -      -       +      -
    117F  GLU      3.5     5.0    +      -       -      +
    118F  VAL      3.0    11.7    +      -       -      +
    120F  GLU*     1.3    77.3    -      -       -      +
    122F  VAL*     1.3    65.7    +      -       -      +
    124F  VAL*     3.3     5.9    -      -       +      +
    125F  CYS*     3.0    40.2    +      -       -      -
    169F  VAL*     3.8    24.0    -      -       +      +
    170F  ALA*     5.1     2.4    -      -       -      +
    172F  TYR*     3.8     8.8    -      +       -      -
    173F  GLY*     3.5    40.6    -      -       -      -
    174F  TRP      5.5     0.2    -      -       -      +
    176F  ASN*     2.6    35.0    +      -       +      +
    177F  ALA*     4.8     0.7    -      -       +      -
    201F  VAL*     4.1    21.5    -      -       +      -
    205F  VAL*     3.9     9.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 122 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     89F  GLY*     3.8    22.2    -      -       -      +
     92F  LEU*     3.9    15.7    -      -       +      +
     93F  ARG*     3.4    51.4    -      -       +      +
     96F  ILE*     5.1     2.7    -      -       +      -
    118F  VAL*     3.0    21.4    +      -       +      +
    119F  GLN*     3.2    21.1    +      -       -      +
    121F  TYR*     1.3    74.8    -      -       -      +
    123F  ASP*     1.3    62.7    +      -       -      +
    125F  CYS*     3.2    20.7    +      -       -      +
    126F  ASP*     3.3    10.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 123 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93F  ARG*     5.3     1.2    +      -       -      -
    119F  GLN*     2.7    53.7    +      -       -      +
    120F  GLU*     4.7     0.3    -      -       -      +
    122F  VAL*     1.3    74.8    -      -       -      +
    124F  VAL*     1.3    58.6    +      -       -      +
    126F  ASP*     3.4    12.5    +      -       -      +
    127F  TYR*     3.1    24.8    +      -       -      +
    463F  ILE*     3.3    26.2    -      -       +      +
     83G  GLU*     5.6     2.4    -      -       -      +
    133G  ARG*     4.3    20.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 124 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120F  GLU      3.0    16.5    +      -       -      +
    121F  TYR*     3.3    21.3    +      -       +      +
    123F  ASP*     1.3    73.4    -      -       -      +
    125F  CYS*     1.3    60.0    +      -       -      +
    127F  TYR*     3.5    10.4    -      -       +      +
    128F  ALA*     2.9    28.2    +      -       -      +
    173F  GLY      3.8    16.2    -      -       -      +
    174F  TRP*     3.7    22.4    -      -       +      +
    177F  ALA*     3.8    18.7    -      -       +      +
    178F  ILE*     4.8     4.3    -      -       +      -
    463F  ILE*     4.0     9.4    -      -       +      +
    479F  SER*     3.6    29.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 125 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85F  VAL*     3.6    38.9    -      -       -      +
     86F  ARG*     5.1     0.4    -      -       -      +
     88F  ILE*     4.3     4.0    -      -       -      -
     89F  GLY*     3.9    20.2    -      -       -      -
    121F  TYR*     3.0    45.6    +      -       -      -
    122F  VAL      3.2    10.3    +      -       -      +
    124F  VAL*     1.3    76.9    -      -       -      +
    126F  ASP*     1.3    60.1    +      -       -      +
    128F  ALA*     3.1     5.5    +      -       -      +
    129F  VAL*     3.0    31.4    +      -       -      +
    177F  ALA*     4.2     4.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 126 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86F  ARG*     4.6    17.7    -      -       -      +
     89F  GLY*     5.5     0.9    -      -       -      -
     93F  ARG*     3.2    28.4    +      -       -      -
    122F  VAL*     3.3    11.8    +      -       -      +
    123F  ASP*     3.8    12.9    -      -       -      +
    124F  VAL      3.4     0.2    -      -       -      -
    125F  CYS*     1.3    78.7    -      -       -      +
    127F  TYR*     1.3    61.9    +      -       -      +
    129F  VAL*     3.2    17.1    +      -       -      +
    130F  GLY      3.4     8.7    +      -       -      -
     86G  ARG*     3.4    21.6    -      -       -      +
    126G  ASP      4.5     1.2    -      -       -      +
    129G  VAL*     3.8    21.9    -      -       +      +
    130G  GLY      4.3     7.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 127 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123F  ASP      3.1    15.0    +      -       -      +
    124F  VAL*     3.5    11.9    -      -       +      +
    126F  ASP*     1.3    76.1    -      -       -      +
    128F  ALA*     1.3    61.8    +      -       -      +
    130F  GLY*     3.1    12.1    +      -       -      -
    131F  LEU*     3.1    40.0    +      -       +      +
    178F  ILE*     4.6     5.2    -      -       +      -
    463F  ILE*     3.8    18.4    -      -       +      -
    464F  GLY*     3.8     6.3    +      -       -      -
    479F  SER*     3.8    18.2    -      -       -      -
    480F  GLY*     3.7     8.0    -      -       -      -
    481F  SER*     3.5    27.7    +      -       -      -
    129G  VAL*     5.0     1.9    -      -       -      +
    130G  GLY*     4.2    12.7    -      -       -      -
    133G  ARG*     3.8    39.7    -      -       +      +
    134G  MET*     3.9    27.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 128 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82F  GLY*     5.4     0.4    -      -       -      -
     85F  VAL*     3.9     8.5    -      -       +      -
    124F  VAL      2.9    14.5    +      -       -      +
    125F  CYS      3.4     9.0    -      -       -      +
    127F  TYR*     1.3    74.1    -      -       -      +
    129F  VAL*     1.3    59.9    +      -       -      +
    131F  LEU*     3.1    12.7    +      -       -      +
    132F  SER*     2.9    25.8    +      -       -      -
    177F  ALA*     3.7    15.7    -      -       +      +
    178F  ILE*     4.4     6.1    -      -       +      -
    181F  THR*     3.2    29.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 129 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82F  GLY      3.6    25.8    -      -       -      +
     83F  GLU*     6.0     0.4    -      -       -      -
     85F  VAL*     4.6     0.7    -      -       +      -
     86F  ARG*     3.7    27.4    -      -       +      +
    125F  CYS      3.0    20.1    +      -       -      +
    126F  ASP*     3.4    13.7    -      -       -      +
    127F  TYR      3.2     0.4    -      -       -      -
    128F  ALA*     1.3    76.1    -      -       -      +
    130F  GLY*     1.3    61.8    +      -       -      +
    132F  SER*     2.6    26.9    +      -       -      +
    133F  ARG*     4.1     7.1    +      -       -      +
    126G  ASP*     3.8    33.9    -      -       +      +
    127G  TYR*     5.3     1.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 130 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126F  ASP      3.4     4.8    +      -       -      -
    127F  TYR      3.1     8.2    +      -       -      -
    129F  VAL*     1.3    80.3    -      -       -      +
    131F  LEU*     1.3    60.1    +      -       -      +
    133F  ARG*     3.3    13.9    +      -       -      +
    134F  MET*     3.3    23.0    -      -       -      +
    126G  ASP      4.3     2.4    +      -       -      -
    127G  TYR*     4.2    14.7    -      -       -      -
    130G  GLY*     3.7    21.3    -      -       -      -
    134G  MET*     5.5     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 131 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127F  TYR*     3.1    43.2    +      -       +      +
    128F  ALA*     3.1    10.8    +      -       -      +
    130F  GLY*     1.3    70.5    -      -       -      +
    132F  SER*     1.3    54.8    +      -       -      +
    133F  ARG      3.0     5.2    -      -       -      -
    134F  MET*     2.8    27.4    +      -       +      -
    135F  ILE*     2.9    27.1    +      -       +      +
    178F  ILE*     3.7    24.2    -      -       +      -
    181F  THR*     4.2     6.3    -      -       +      -
    479F  SER      5.0     1.6    -      -       -      +
    481F  SER      5.1     2.0    -      -       -      +
    484F  TRP*     4.4    32.5    -      -       +      +
    134G  MET*     3.9    28.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 132 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78F  ALA*     3.3    34.6    -      -       -      +
     79F  PRO*     3.2    30.7    +      -       -      +
     82F  GLY*     3.8    13.2    -      -       -      -
    128F  ALA      2.9    14.3    +      -       -      -
    129F  VAL*     2.6    22.0    +      -       -      +
    131F  LEU*     1.3    76.9    -      -       -      +
    133F  ARG*     1.3    59.6    +      -       -      +
    134F  MET      3.4     0.2    -      -       -      -
    135F  ILE*     4.8     0.9    -      -       -      -
    181F  THR*     3.6    16.1    -      -       -      +
    141H  PRO*     3.4     5.3    -      -       -      +
----------------------------------------------------------
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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