Contacts of the helix formed by residues 110 - 132 (chain G) 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 G).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109G  LYS*     1.3    76.6    -      -       -      +
    111G  TYR*     1.3    66.0    +      -       -      +
    112G  VAL*     3.7    26.2    -      -       +      +
    113G  GLU*     2.9    34.0    +      -       +      +
    114G  GLY      3.0     9.4    +      -       -      -
    296G  THR*     6.0     0.6    -      -       -      +
    333G  PRO*     3.7    14.6    -      -       +      +
    335G  ASP      5.8     0.2    -      -       -      +
    338G  THR*     3.8    36.8    -      -       +      +
    339G  LEU*     4.0    31.6    -      -       +      +
    340G  TYR      4.1     3.4    -      -       -      +
    341G  GLY*     4.5     8.5    -      -       -      +
    505H  GLN*     5.8     1.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 111 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97G  LYS*     3.7    40.7    -      -       -      +
    101G  SER*     3.3    34.1    -      -       -      -
    104G  SER*     3.7    12.5    +      -       -      +
    109G  LYS      3.7     0.8    +      -       -      -
    110G  ILE*     1.3    71.0    -      -       -      +
    112G  VAL*     1.3    69.1    +      -       +      +
    114G  GLY*     2.9     3.6    +      -       -      -
    115G  VAL*     2.9    42.4    +      -       +      +
    333G  PRO      3.0    20.2    +      -       -      +
    334G  TRP*     4.3    30.5    -      +       +      +
    336G  PRO*     6.6     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 112 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110G  ILE*     3.7    23.8    -      -       +      +
    111G  TYR*     1.3    87.2    -      -       +      +
    113G  GLU*     1.3    62.9    +      -       +      +
    115G  VAL*     3.4     9.3    +      -       +      +
    116G  GLY*     2.9    23.2    +      -       -      -
    505H  GLN*     6.1     0.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 113 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109G  LYS*     4.1    19.9    -      -       +      +
    110G  ILE*     2.9    28.9    +      -       +      +
    112G  VAL*     1.3    79.3    -      -       +      +
    114G  GLY*     1.3    59.8    +      -       -      +
    116G  GLY*     3.6     3.6    -      -       -      +
    117G  GLU*     3.0    27.7    +      -       -      +
    167G  PHE*     6.0     0.2    -      -       -      -
    295G  GLY*     4.5     1.4    -      -       -      -
    296G  THR*     2.9    38.3    +      -       -      +
    300G  ARG*     3.3    26.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 114 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100G  GLY*     3.6    22.8    -      -       -      -
    103G  VAL*     4.2    19.0    -      -       -      +
    104G  SER      4.8     0.7    -      -       -      -
    109G  LYS*     4.1     4.2    -      -       -      +
    110G  ILE      3.0     8.1    +      -       -      -
    111G  TYR      2.9     8.0    +      -       -      -
    113G  GLU*     1.3    75.1    -      -       -      +
    115G  VAL*     1.3    61.0    +      -       -      +
    117G  GLU*     3.4     5.6    +      -       -      +
    118G  VAL*     3.3    24.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 115 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96G  ILE*     3.9    33.8    -      -       +      +
     97G  LYS*     4.6     3.4    -      -       +      -
    100G  GLY*     3.8     4.9    -      -       -      -
    111G  TYR*     2.9    51.1    +      -       +      +
    112G  VAL*     3.6    12.1    -      -       +      +
    114G  GLY*     1.3    74.3    -      -       -      +
    116G  GLY*     1.3    64.9    +      -       -      +
    118G  VAL*     3.1     9.2    +      -       -      +
    119G  GLN*     3.0    21.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 116 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112G  VAL      2.9    17.1    +      -       -      -
    113G  GLU*     3.4     5.1    +      -       -      -
    114G  GLY      3.3     0.2    -      -       -      -
    115G  VAL*     1.3    76.9    -      -       -      +
    117G  GLU*     1.3    61.2    +      -       -      +
    119G  GLN*     3.3    10.6    +      -       -      +
    120G  GLU*     3.1    25.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 117 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103G  VAL*     3.8     4.2    -      -       +      +
    109G  LYS*     2.8    34.9    +      -       -      +
    113G  GLU      3.0    15.5    +      -       -      +
    114G  GLY*     3.6     7.4    -      -       -      +
    115G  VAL      3.2     0.4    -      -       -      -
    116G  GLY*     1.3    73.2    -      -       -      +
    118G  VAL*     1.3    66.1    +      -       -      +
    120G  GLU*     3.2    25.2    +      -       -      +
    121G  TYR*     3.5     4.5    +      -       -      +
    167G  PHE*     2.8    31.8    -      -       +      -
    168G  PRO*     3.7     6.2    -      -       -      +
    169G  VAL*     2.6    37.9    +      -       +      +
    170G  ALA*     2.9    22.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 118 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92G  LEU*     4.3    14.4    -      -       +      +
     96G  ILE*     3.7    30.5    -      -       +      +
     99G  LEU*     3.8    37.2    -      -       +      +
    100G  GLY*     3.9    13.0    -      -       -      +
    103G  VAL*     4.9     0.4    -      -       +      -
    114G  GLY      3.4    14.4    -      -       -      +
    115G  VAL      3.1     7.7    +      -       -      +
    117G  GLU*     1.3    75.8    -      -       -      +
    119G  GLN*     1.3    63.4    +      -       -      +
    121G  TYR*     3.1     6.8    +      -       -      +
    122G  VAL*     3.0    24.1    +      -       +      +
    169G  VAL*     4.3    15.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 119 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93G  ARG*     4.5     8.7    -      -       -      +
     96G  ILE*     3.5    20.1    -      -       +      +
    115G  VAL*     3.0    14.0    +      -       +      +
    116G  GLY*     3.3    14.1    -      -       -      +
    118G  VAL*     1.3    77.8    -      -       -      +
    120G  GLU*     1.3    51.7    +      -       -      +
    122G  VAL*     3.2    21.8    +      -       -      +
    123G  ASP*     2.7    75.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 120 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116G  GLY      3.1    16.6    +      -       -      +
    117G  GLU*     3.2    15.0    -      -       -      +
    119G  GLN*     1.3    75.2    -      -       -      +
    121G  TYR*     1.3    56.9    +      -       -      +
    123G  ASP*     4.6     1.1    -      -       -      +
    124G  VAL*     3.0    31.8    +      -       -      +
    167G  PHE*     5.7     6.4    -      -       +      -
    170G  ALA*     4.0    15.0    -      -       +      +
    174G  TRP*     3.8    32.0    +      -       -      +
    461G  ALA      5.1     5.0    -      -       -      +
    462G  GLU*     5.8     2.1    -      -       -      -
    463G  ILE*     3.7    26.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 121 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88G  ILE*     3.9     4.0    -      -       +      +
     92G  LEU*     3.5    28.3    -      -       +      -
    117G  GLU      3.5     4.6    +      -       -      +
    118G  VAL*     3.1    12.2    +      -       -      +
    120G  GLU*     1.3    76.6    -      -       -      +
    122G  VAL*     1.3    64.2    +      -       -      +
    124G  VAL*     3.2     6.7    -      -       +      +
    125G  CYS*     3.0    38.7    +      -       -      -
    169G  VAL*     3.9    23.3    -      -       +      +
    170G  ALA*     5.1     3.3    -      -       -      +
    172G  TYR*     3.7     9.0    -      +       -      -
    173G  GLY*     3.6    40.8    -      -       -      -
    174G  TRP      5.5     0.2    -      -       -      +
    176G  ASN*     2.7    34.4    +      -       +      +
    177G  ALA      4.7     1.3    -      -       -      -
    201G  VAL*     4.0    21.3    -      -       +      -
    205G  VAL*     3.8     8.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 122 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     89G  GLY*     3.8    21.1    -      -       -      +
     92G  LEU*     3.9    16.1    -      -       +      +
     93G  ARG*     3.4    52.3    -      -       +      +
     96G  ILE*     5.0     2.7    -      -       +      -
    118G  VAL*     3.0    21.6    +      -       +      +
    119G  GLN*     3.5    19.7    -      -       -      +
    121G  TYR*     1.3    75.8    -      -       -      +
    123G  ASP*     1.3    64.0    +      -       -      +
    125G  CYS*     3.2    21.8    +      -       -      +
    126G  ASP*     3.3     9.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 123 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83F  GLU*     5.6     1.9    -      -       -      +
    133F  ARG*     4.3    19.8    +      -       -      +
     93G  ARG*     5.3     1.0    +      -       -      -
    119G  GLN*     2.7    52.5    +      -       -      +
    120G  GLU*     4.7     0.7    -      -       -      +
    122G  VAL*     1.3    73.9    -      -       -      +
    124G  VAL*     1.3    57.5    +      -       -      +
    126G  ASP*     3.4    11.4    +      -       -      +
    127G  TYR*     3.1    25.6    +      -       -      +
    463G  ILE*     3.3    26.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 124 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120G  GLU      3.0    17.8    +      -       -      +
    121G  TYR*     3.2    21.5    -      -       +      +
    123G  ASP*     1.3    73.9    -      -       -      +
    125G  CYS*     1.3    59.7    +      -       -      +
    127G  TYR*     4.0     9.4    -      -       +      -
    128G  ALA*     2.9    28.4    +      -       -      +
    173G  GLY      3.7    25.1    -      -       -      +
    174G  TRP*     3.8    21.5    -      -       +      +
    177G  ALA*     3.8    10.1    -      -       +      +
    178G  ILE*     4.7     4.7    -      -       +      -
    463G  ILE*     3.9     9.1    -      -       +      +
    479G  SER*     3.6    28.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 125 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85G  VAL*     3.6    40.6    -      -       -      +
     86G  ARG*     5.1     0.4    -      -       -      +
     88G  ILE*     4.2     4.0    -      -       -      -
     89G  GLY*     3.7    21.1    -      -       -      -
    121G  TYR*     3.0    41.3    +      -       -      -
    122G  VAL      3.2    10.1    +      -       -      +
    124G  VAL*     1.3    76.8    -      -       -      +
    126G  ASP*     1.3    64.5    +      -       -      +
    128G  ALA*     3.1     5.4    +      -       -      +
    129G  VAL*     3.0    26.5    +      -       -      +
    176G  ASN*     6.0     0.2    -      -       -      -
    177G  ALA*     4.2     2.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 126 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83F  GLU*     5.4     0.3    -      -       -      +
     86F  ARG*     3.4    19.7    -      -       -      +
    126F  ASP      4.5     1.2    -      -       -      +
    129F  VAL*     3.8    22.3    -      -       +      +
    130F  GLY      4.3     7.8    +      -       -      -
     86G  ARG*     4.7    17.0    -      -       -      +
     89G  GLY*     5.4     1.2    -      -       -      -
     93G  ARG*     3.1    28.5    +      -       -      -
    122G  VAL*     3.3    13.2    +      -       -      +
    123G  ASP*     3.4    12.7    +      -       -      +
    125G  CYS*     1.3    79.2    -      -       -      +
    127G  TYR*     1.3    61.1    +      -       -      +
    129G  VAL*     3.3    20.8    +      -       -      +
    130G  GLY      3.4     5.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 127 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129F  VAL*     5.1     1.7    -      -       -      +
    130F  GLY*     4.2    12.4    -      -       -      -
    133F  ARG*     3.9    39.7    +      -       +      +
    134F  MET*     3.9    28.1    -      -       +      +
    123G  ASP      3.1    13.9    +      -       -      +
    124G  VAL*     3.5    11.9    -      -       +      +
    126G  ASP*     1.3    76.8    -      -       -      +
    128G  ALA*     1.3    62.1    +      -       -      +
    130G  GLY*     3.1    12.5    +      -       -      -
    131G  LEU*     3.1    38.5    +      -       +      +
    178G  ILE*     4.6     6.3    -      -       +      -
    463G  ILE*     3.8    18.2    -      -       +      -
    464G  GLY*     3.9     6.0    +      -       -      -
    479G  SER*     3.7    17.9    -      -       -      -
    480G  GLY*     4.0     8.5    -      -       -      -
    481G  SER*     3.4    28.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 128 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82G  GLY*     5.5     0.4    -      -       -      -
     85G  VAL*     3.9     7.9    -      -       +      -
    124G  VAL      2.9    18.8    +      -       -      +
    125G  CYS      3.1     5.8    +      -       -      +
    127G  TYR*     1.3    73.8    -      -       -      +
    129G  VAL*     1.3    60.9    +      -       -      +
    131G  LEU*     3.1    11.5    +      -       -      -
    132G  SER*     2.9    26.2    +      -       -      -
    177G  ALA*     3.8    15.3    -      -       +      +
    178G  ILE*     4.4     7.0    -      -       +      -
    181G  THR*     3.2    30.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 129 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126F  ASP*     3.8    33.4    -      -       +      +
    127F  TYR*     5.0     1.1    -      -       -      +
     82G  GLY*     3.5    27.6    -      -       -      +
     83G  GLU*     6.0     0.2    -      -       -      -
     85G  VAL*     4.7     0.9    -      -       +      -
     86G  ARG*     3.7    27.8    -      -       +      +
    125G  CYS      3.0    15.1    +      -       -      +
    126G  ASP*     3.4    13.5    -      -       -      +
    127G  TYR      3.2     0.4    -      -       -      -
    128G  ALA*     1.3    74.7    -      -       -      +
    130G  GLY*     1.3    62.3    +      -       -      +
    132G  SER*     2.6    27.4    +      -       -      +
    133G  ARG*     4.0     6.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 130 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126F  ASP      4.3     3.0    +      -       -      -
    127F  TYR*     4.2    14.8    -      -       -      -
    130F  GLY*     3.7    21.3    -      -       -      -
    134F  MET*     5.5     0.4    -      -       -      -
    126G  ASP      3.4     4.4    +      -       -      -
    127G  TYR      3.1     8.0    +      -       -      -
    129G  VAL*     1.3    79.1    -      -       -      +
    131G  LEU*     1.3    60.3    +      -       -      +
    133G  ARG*     3.2    10.6    +      -       -      +
    134G  MET*     3.2    26.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 131 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134F  MET*     3.9    28.7    -      -       +      -
    127G  TYR*     3.1    42.3    +      -       +      +
    128G  ALA*     3.1    10.4    +      -       -      +
    130G  GLY*     1.3    69.6    -      -       -      +
    132G  SER*     1.3    54.8    +      -       -      +
    133G  ARG      3.0     5.2    -      -       -      -
    134G  MET*     2.8    27.0    +      -       +      -
    135G  ILE*     2.9    26.1    +      -       +      +
    178G  ILE*     3.7    23.6    -      -       +      -
    181G  THR*     4.2     7.0    -      -       +      -
    479G  SER      4.9     2.0    -      -       -      +
    481G  SER      5.0     2.5    -      -       -      +
    484G  TRP*     4.3    33.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 132 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141E  PRO*     3.5     4.6    -      -       -      +
     78G  ALA*     3.2    34.2    -      -       -      +
     79G  PRO*     3.2    30.3    +      -       -      +
     82G  GLY*     3.8    12.5    -      -       -      -
    128G  ALA      2.9    12.2    +      -       -      -
    129G  VAL*     2.6    23.4    +      -       -      +
    131G  LEU*     1.3    75.7    -      -       -      +
    133G  ARG*     1.3    60.3    +      -       -      +
    134G  MET      3.5     0.2    -      -       -      -
    181G  THR*     3.6    16.4    -      -       -      +
----------------------------------------------------------
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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