Contacts of the helix formed by residues 159 - 183 (chain F) in PDB entry 5JRE


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with ASN 159 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12E  TYR*     3.0     8.0    +      -       -      +
     16E  GLU*     3.2    17.2    +      -       -      +
     19E  LYS*     4.3    14.1    -      -       -      +
    109F  TRP*     3.9    20.1    -      -       +      -
    113F  PHE*     3.6    15.4    -      -       -      -
    157F  LEU      3.8     0.2    -      -       -      -
    158F  LYS*     1.3    75.2    -      -       -      +
    160F  PHE*     1.3    62.0    +      -       -      +
    161F  ASP*     3.0    31.8    +      -       -      +
    162F  LEU*     3.0    21.8    +      -       +      +
    163F  ARG*     2.9    30.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 160 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    158F  LYS      3.4     4.7    +      -       -      -
    159F  ASN*     1.3    72.6    -      -       -      +
    161F  ASP*     1.3    74.3    +      -       -      +
    163F  ARG*     3.3    25.3    +      -       +      +
    164F  ARG*     3.1    55.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 161 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113F  PHE*     3.8    22.2    -      -       +      -
    159F  ASN*     3.0    12.8    +      -       -      +
    160F  PHE*     1.3    84.4    -      -       -      +
    162F  LEU*     1.3    62.6    +      -       -      +
    164F  ARG*     3.1    32.9    +      -       -      +
    165F  LYS*     3.2    29.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 162 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12E  TYR*     3.6    32.1    -      -       +      +
    109F  TRP*     4.9     2.9    -      -       +      -
    112F  LEU*     3.9    17.9    -      -       +      +
    113F  PHE*     3.6    53.4    -      -       +      +
    157F  LEU*     3.7    30.5    -      -       +      +
    159F  ASN*     3.0    29.4    +      -       +      +
    161F  ASP*     1.3    77.9    -      -       -      +
    163F  ARG*     1.3    61.7    +      -       -      +
    165F  LYS*     3.1    20.5    +      -       +      +
    166F  LEU      3.3     8.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 163 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27A  ILE*     3.9    29.2    -      -       -      +
     30A  SER*     4.0    24.2    +      -       -      -
     34A  LYS*     5.6     1.0    -      -       -      +
     78A  ILE*     6.0     8.3    -      -       -      +
     82A  GLU*     5.8     0.2    +      -       -      -
    157F  LEU*     3.2    37.2    -      -       +      +
    158F  LYS      3.8    12.6    +      -       -      -
    159F  ASN      2.9    19.1    +      -       -      +
    160F  PHE*     3.3    27.0    +      -       +      +
    162F  LEU*     1.3    75.0    -      -       -      +
    164F  ARG*     1.3    61.8    +      -       -      +
    166F  LEU*     3.3    27.8    +      -       +      +
    167F  ASP*     3.4    13.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 164 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    160F  PHE*     3.1    46.3    +      -       +      +
    161F  ASP*     3.1    39.3    +      -       -      +
    162F  LEU      3.2     0.2    -      -       -      -
    163F  ARG*     1.3    73.7    -      -       +      +
    165F  LYS*     1.3    61.2    +      -       +      +
    167F  ASP*     3.2    14.8    +      -       -      +
    168F  TYR*     3.0    25.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 165 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81F  GLN*     3.8     6.6    -      -       -      +
    113F  PHE*     3.7    39.9    -      -       -      +
    116F  GLY*     3.7    35.4    -      -       -      +
    117F  ASP*     3.0    24.1    +      -       -      +
    152F  LEU*     5.5     2.0    -      -       +      -
    161F  ASP*     3.2    16.0    +      -       -      +
    162F  LEU*     3.1    18.7    +      -       +      +
    164F  ARG*     1.3    76.2    -      -       -      +
    166F  LEU*     1.3    57.3    +      -       -      +
    168F  TYR*     3.2    13.3    +      -       +      +
    169F  VAL*     2.9    32.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 166 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  LYS*     3.8    34.5    -      -       +      -
    149F  TYR*     3.5    26.9    -      -       +      +
    152F  LEU*     3.5    36.4    -      -       +      +
    153F  LEU*     3.6    24.9    -      -       +      +
    157F  LEU*     4.4     9.2    -      -       +      -
    162F  LEU      3.3     9.9    +      -       -      +
    163F  ARG*     3.3    20.6    -      -       +      +
    165F  LYS*     1.3    77.5    -      -       -      +
    167F  ASP*     1.3    59.2    +      -       -      +
    169F  VAL*     3.3    10.8    +      -       -      +
    170F  SER      3.2    16.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 167 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  LYS*     3.5    27.6    +      -       -      -
    149F  TYR*     5.6     0.5    +      -       -      -
    163F  ARG      3.4    13.3    +      -       -      +
    164F  ARG*     3.2    17.0    +      -       +      +
    166F  LEU*     1.3    74.4    -      -       -      +
    168F  TYR*     1.3    65.8    +      -       -      +
    170F  SER*     3.2     9.3    +      -       -      -
    171F  ASN*     3.0    32.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 168 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116F  GLY      3.7    23.8    -      -       -      -
    117F  ASP*     4.3    15.7    +      -       -      -
    119F  ALA*     4.5     4.5    -      -       +      -
    120F  GLY*     3.2    37.9    +      -       -      -
    164F  ARG      3.0    12.6    +      -       -      +
    165F  LYS*     3.2    11.2    -      -       +      +
    167F  ASP*     1.3    76.3    -      -       -      +
    169F  VAL*     1.3    64.5    +      -       -      +
    171F  ASN*     3.1    14.7    +      -       +      +
    172F  ILE*     3.0    41.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 169 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116F  GLY      4.5    10.1    -      -       -      +
    119F  ALA*     4.0    28.0    -      -       +      -
    145F  LEU*     4.0    21.5    -      -       +      +
    148F  LEU*     4.7    10.1    -      -       +      -
    149F  TYR*     4.0    20.6    -      -       +      +
    152F  LEU*     4.3    19.7    -      -       +      -
    165F  LYS      2.9    19.1    +      -       -      +
    166F  LEU*     3.5     8.3    -      -       -      +
    167F  ASP      3.2     0.2    -      -       -      -
    168F  TYR*     1.3    75.2    -      -       +      +
    170F  SER*     1.3    63.7    +      -       -      +
    172F  ILE*     3.1     4.2    +      -       -      +
    173F  ILE*     3.0    26.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 170 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124A  ARG*     4.6    10.4    +      -       -      +
    149F  TYR*     3.8    25.9    +      -       -      -
    166F  LEU      3.2     4.6    +      -       -      -
    167F  ASP*     3.4    11.9    -      -       -      -
    169F  VAL*     1.3    80.2    -      -       -      +
    171F  ASN*     1.3    63.6    +      -       -      +
    173F  ILE*     3.4    14.0    +      -       -      +
    174F  ASN*     3.2    29.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 171 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167F  ASP*     3.0    24.1    +      -       -      +
    168F  TYR*     3.1    13.4    +      -       +      +
    170F  SER*     1.3    76.5    +      -       -      +
    172F  ILE*     1.3    67.3    -      -       +      +
    174F  ASN*     3.2    14.9    +      -       -      +
    175F  LYS*     3.1    27.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 172 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119F  ALA*     3.5    35.0    -      -       +      +
    120F  GLY*     4.2     7.4    -      -       -      -
    123F  LEU*     3.8    31.5    -      -       +      +
    145F  LEU*     3.7    18.2    -      -       +      -
    168F  TYR*     3.0    44.6    +      -       +      +
    169F  VAL      3.1     7.4    +      -       -      +
    171F  ASN*     1.3    77.6    -      -       +      +
    173F  ILE*     1.3    63.5    +      -       -      +
    175F  LYS*     3.1    11.3    +      -       +      +
    176F  LEU*     3.0    20.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 173 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124A  ARG*     4.1    15.5    -      -       -      +
    142F  LYS*     4.6     7.0    -      -       +      +
    145F  LEU*     3.7    45.8    -      -       +      +
    146F  GLU*     3.9    26.9    -      -       +      +
    149F  TYR*     4.2    10.1    -      -       +      -
    169F  VAL*     3.0    28.4    +      -       +      +
    170F  SER*     3.6    11.9    -      -       -      +
    171F  ASN      3.2     0.2    -      -       -      -
    172F  ILE*     1.3    76.6    -      -       -      +
    174F  ASN*     1.3    57.3    +      -       -      +
    176F  LEU*     3.3     8.4    +      -       -      +
    177F  ILE*     2.9    46.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 174 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120A  GLY      5.8     2.0    +      -       -      -
    123A  LEU*     6.2     4.5    -      -       +      +
    124A  ARG*     3.3    35.7    +      -       -      +
    175A  LYS*     5.8     2.1    +      -       -      +
    179A  PHE*     5.9     0.3    -      -       -      -
    170F  SER*     3.2    19.6    +      -       -      -
    171F  ASN*     3.5    17.1    +      -       -      +
    172F  ILE      3.2     0.2    -      -       -      -
    173F  ILE*     1.3    77.2    -      -       -      +
    175F  LYS*     1.3    61.2    +      -       +      +
    177F  ILE*     3.4     8.2    +      -       -      +
    178F  GLU*     3.1    22.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 175 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175A  LYS*     6.1     2.5    -      -       -      +
    123F  LEU*     4.3    25.1    -      -       +      -
    171F  ASN*     3.1    15.8    +      -       +      +
    172F  ILE*     3.1    13.2    +      -       +      +
    174F  ASN*     1.3    73.4    -      -       +      +
    176F  LEU*     1.3    66.4    +      -       -      +
    178F  GLU*     3.3    18.4    -      -       -      +
    179F  PHE*     3.0    45.1    +      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 176 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122F  ILE*     5.5     0.2    -      -       +      -
    123F  LEU*     4.0    18.3    -      -       +      +
    126F  SER*     3.9    25.4    -      -       -      +
    130F  LEU*     6.4     0.2    -      -       +      -
    138F  ALA*     3.8    21.3    -      -       +      +
    141F  ALA*     3.9    10.8    -      -       +      -
    142F  LYS*     3.5    37.0    -      -       +      +
    145F  LEU*     4.0    17.9    -      -       +      -
    172F  ILE      3.0    10.6    +      -       -      +
    173F  ILE*     3.5    10.1    -      -       -      +
    175F  LYS*     1.3    74.5    -      -       -      +
    177F  ILE*     1.3    66.0    +      -       -      +
    179F  PHE*     3.1    15.1    +      -       +      +
    180F  ILE*     2.9    31.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 177 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124A  ARG*     4.0    28.5    -      -       -      +
    127A  SER*     3.7    27.8    -      -       -      +
    128A  GLU*     6.1     1.6    -      -       +      +
    131A  ILE*     4.5    10.5    -      -       +      +
    179A  PHE*     5.7     1.1    -      -       +      -
    142F  LYS*     3.4    34.1    -      -       +      -
    173F  ILE*     2.9    33.8    +      -       +      +
    174F  ASN*     3.6     9.0    -      -       -      +
    175F  LYS      3.4     0.2    -      -       -      -
    176F  LEU*     1.3    75.5    -      -       -      +
    178F  GLU*     1.3    56.6    +      -       -      +
    180F  ILE*     3.2     9.9    +      -       -      +
    181F  ILE*     2.9    39.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 178 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175A  LYS*     2.8    33.0    +      -       -      +
    178A  GLU*     4.6    11.5    -      -       -      +
    179A  PHE*     3.8    34.2    -      -       +      -
    182A  TRP*     6.1     0.2    -      -       -      -
    175C  LYS*     5.9     0.8    +      -       -      -
    174F  ASN      3.1    13.4    +      -       -      +
    175F  LYS*     3.3    21.4    -      -       -      +
    177F  ILE*     1.3    77.2    -      -       -      +
    179F  PHE*     1.3    79.5    +      -       -      +
    181F  ILE*     3.2     4.8    +      -       -      +
    182F  TRP*     3.0    23.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 179 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123F  LEU*     3.7    24.9    -      -       +      -
    126F  SER      6.1     0.4    -      -       -      -
    127F  SER*     3.5    26.9    -      -       -      -
    130F  LEU*     3.6    34.8    -      -       +      +
    175F  LYS*     3.0    35.5    +      -       +      -
    176F  LEU*     3.1    13.9    +      -       +      +
    178F  GLU*     1.3    98.7    -      -       -      +
    180F  ILE*     1.3    61.5    +      -       +      +
    182F  TRP*     3.4    16.7    +      -       -      +
    183F  LYS*     3.5     9.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 180 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131A  ILE*     5.2    15.0    -      -       +      -
    130F  LEU*     5.6     0.4    -      -       +      -
    135F  ILE*     3.7     9.8    -      -       +      +
    138F  ALA*     3.7    43.3    -      -       +      +
    139F  LYS*     4.0    36.3    -      -       +      +
    142F  LYS*     4.1    21.3    -      -       +      -
    176F  LEU*     2.9    24.3    +      -       +      +
    177F  ILE*     3.5     7.6    -      -       -      +
    179F  PHE*     1.3    75.2    -      -       +      +
    181F  ILE*     1.3    66.6    +      -       -      +
    183F  LYS      3.0    24.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 181 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127A  SER*     4.2    13.2    -      -       -      +
    130A  LEU*     4.6     9.6    -      -       +      -
    131A  ILE*     4.8    12.8    -      -       +      +
    179A  PHE*     4.0    48.5    -      -       +      -
    182A  TRP*     4.5    13.9    -      -       +      +
    183A  LYS*     4.4    35.3    -      -       +      +
    177F  ILE*     2.9    35.1    +      -       +      +
    178F  GLU*     3.6     7.4    -      -       -      +
    180F  ILE*     1.3    73.4    -      -       -      +
    182F  TRP*     1.3    69.4    +      -       -      +
    183F  LYS      3.0     5.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with TRP 182 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    182A  TRP*     3.5    55.9    -      +       +      +
    178C  GLU*     5.3     9.8    +      -       -      +
    130F  LEU*     4.4    20.2    -      -       +      -
    178F  GLU      3.0    13.4    +      -       -      +
    179F  PHE*     3.6    15.7    -      -       -      +
    180F  ILE      3.3     0.2    -      -       -      -
    181F  ILE*     1.3    80.2    -      -       -      +
    183F  LYS*     1.3    78.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 183 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    183A  LYS*     5.6     3.8    +      -       -      -
    130F  LEU*     4.6     9.6    -      -       +      -
    133F  GLY*     5.0    10.5    -      -       -      +
    135F  ILE*     3.4    45.3    -      -       +      +
    179F  PHE      3.5     4.4    +      -       -      +
    180F  ILE      3.0    19.3    +      -       -      +
    181F  ILE      3.8     4.3    -      -       -      +
    182F  TRP*     1.3   103.9    -      -       +      +
----------------------------------------------------------
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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