Contacts of the helix formed by residues 134 - 160 (chain F) in PDB entry 6BCR


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 CYS 134 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91F  ARG*     5.1     0.2    -      -       -      +
    132F  VAL      4.4     7.2    -      -       -      -
    133F  ALA*     1.3    81.3    -      -       -      +
    135F  GLY*     1.3    67.9    +      -       -      +
    136F  ASP      3.6     0.2    +      -       -      -
    137F  ASP*     3.4    13.4    +      -       -      +
    138F  ARG*     3.1    14.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 135 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134F  CYS*     1.3    74.8    -      -       -      +
    136F  ASP*     1.3    59.5    +      -       -      -
    138F  ARG*     2.9    21.5    +      -       -      +
    139F  LYS*     3.1    11.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 136 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72B  SER      5.4     2.1    -      -       -      +
     74B  LYS*     4.2    33.4    -      -       +      +
    134F  CYS      3.6     0.2    +      -       -      -
    135F  GLY*     1.3    73.5    -      -       -      -
    137F  ASP*     1.3    62.7    +      -       -      +
    139F  LYS*     3.1    16.1    +      -       +      +
    140F  GLN*     2.9    25.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 137 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77B  GLN*     3.8    30.1    -      -       +      +
     91F  ARG*     3.6    29.5    +      -       -      -
    133F  ALA*     3.6    10.4    -      -       -      +
    134F  CYS      3.4     9.9    +      -       -      +
    135F  GLY      3.2     0.4    -      -       -      -
    136F  ASP*     1.3    80.0    -      -       -      +
    138F  ARG*     1.3    56.0    +      -       -      +
    140F  GLN*     4.0     5.0    -      -       -      +
    141F  THR*     2.6    41.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 138 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130F  ALA*     2.8    36.9    +      -       -      +
    131F  GLU*     4.5     6.9    +      -       -      +
    133F  ALA*     3.5    29.0    +      -       -      +
    134F  CYS*     3.1    17.8    +      -       -      +
    135F  GLY      2.9    12.8    +      -       -      +
    137F  ASP*     1.3    74.7    -      -       -      +
    139F  LYS*     1.3    65.8    +      -       -      +
    141F  THR*     3.2     2.6    +      -       -      -
    142F  ILE*     2.8    49.1    +      -       +      +
    180F  GLU      5.1     2.0    +      -       -      -
    181F  ILE*     3.5    31.9    +      -       -      +
    183F  ASN*     4.9     5.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 139 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135F  GLY      3.1     9.5    +      -       -      +
    136F  ASP*     3.1    20.3    +      -       -      +
    138F  ARG*     1.3    78.2    -      -       -      +
    140F  GLN*     1.3    61.0    +      -       +      +
    142F  ILE*     3.3     8.2    +      -       -      +
    143F  ASP*     2.9    48.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 140 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2A  GLU*     4.2     8.1    -      -       -      +
      5A  GLU*     5.9     3.1    -      -       -      -
     74B  LYS*     6.0     3.2    -      -       -      +
    136F  ASP      2.9    15.6    +      -       -      +
    137F  ASP*     4.1     5.6    -      -       -      +
    139F  LYS*     1.3    80.4    -      -       +      +
    141F  THR*     1.3    57.8    +      -       -      +
    143F  ASP*     3.2    13.8    +      -       -      +
    144F  ASN*     2.9    65.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 141 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91F  ARG*     5.7     1.0    +      -       -      -
    126F  PHE*     3.1    35.9    -      -       +      +
    129F  LEU*     3.5    15.9    -      -       +      +
    130F  ALA*     3.5    19.7    -      -       -      +
    133F  ALA*     4.4     2.2    -      -       -      +
    137F  ASP*     2.6    36.0    +      -       -      -
    138F  ARG*     3.6     4.7    -      -       -      -
    140F  GLN*     1.3    76.9    -      -       -      +
    142F  ILE*     1.3    61.3    +      -       -      +
    144F  ASN*     3.3     9.8    +      -       -      +
    145F  SER*     3.0    22.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 142 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130F  ALA*     3.8    11.4    -      -       +      -
    138F  ARG*     2.8    50.9    +      -       +      +
    139F  LYS*     3.6     7.0    -      -       -      +
    141F  THR*     1.3    77.3    -      -       -      +
    143F  ASP*     1.3    62.6    +      -       -      +
    145F  SER*     3.3     6.6    +      -       -      -
    146F  GLN*     2.9    30.8    +      -       -      +
    177F  PHE*     3.8     8.2    -      -       +      -
    181F  ILE*     3.6    26.2    -      -       +      +
    182F  LEU*     3.7    29.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 143 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    139F  LYS*     2.9    45.9    +      -       -      +
    140F  GLN*     3.6    18.1    +      -       -      +
    142F  ILE*     1.3    81.7    -      -       -      +
    144F  ASN*     1.3    60.0    +      -       -      +
    146F  GLN*     3.5    11.5    +      -       -      +
    147F  GLY*     2.9    25.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 144 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2A  GLU*     3.3    22.8    +      -       -      +
    122F  LYS*     5.8     0.3    -      -       -      -
    126F  PHE*     3.7    41.8    -      -       +      -
    140F  GLN*     2.9    47.9    +      -       -      +
    141F  THR*     3.7     5.6    -      -       -      +
    142F  ILE      3.2     0.2    -      -       -      -
    143F  ASP*     1.3    75.8    -      -       -      +
    145F  SER*     1.3    65.7    +      -       -      +
    147F  GLY*     3.4     1.3    +      -       -      -
    148F  ALA*     3.1    23.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 145 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123F  GLY*     2.9    21.5    +      -       -      -
    126F  PHE*     3.6    24.2    -      -       -      +
    127F  ARG*     3.8     7.4    +      -       -      -
    130F  ALA*     5.7     0.2    -      -       -      -
    141F  THR      3.0    11.2    +      -       -      -
    142F  ILE*     3.6     8.1    -      -       -      -
    144F  ASN*     1.3    75.7    -      -       -      +
    146F  GLN*     1.3    62.7    +      -       -      +
    148F  ALA*     3.1     4.2    +      -       -      +
    149F  TYR*     2.9    39.0    +      -       -      -
    177F  PHE*     3.4    15.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 146 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    142F  ILE*     2.9    18.3    +      -       -      +
    143F  ASP*     3.8    11.6    -      -       -      +
    145F  SER*     1.3    75.9    -      -       -      +
    147F  GLY*     1.3    58.7    +      -       -      +
    149F  TYR*     3.8     5.2    -      -       -      +
    150F  GLN*     2.8    38.7    +      -       +      +
    174F  PHE*     4.4     5.4    -      -       +      -
    177F  PHE*     3.8    20.3    -      -       +      -
    178F  TYR*     3.4    27.1    +      -       -      -
    182F  LEU*     3.7    27.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 147 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143F  ASP      2.9    18.2    +      -       -      -
    144F  ASN*     3.9     1.8    -      -       -      -
    146F  GLN*     1.3    76.5    -      -       -      +
    148F  ALA*     1.3    61.5    +      -       -      +
    150F  GLN*     3.9     5.6    -      -       -      +
    151F  GLU*     3.1    25.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 148 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119F  LEU*     3.5    32.4    -      -       +      +
    122F  LYS*     3.8    21.8    -      -       +      -
    123F  GLY*     3.5    14.8    -      -       -      +
    144F  ASN      3.1    13.8    +      -       -      +
    145F  SER      3.6     4.5    -      -       -      +
    147F  GLY*     1.3    74.3    -      -       -      +
    149F  TYR*     1.3    65.8    +      -       -      +
    151F  GLU*     3.4     2.2    +      -       -      +
    152F  ALA*     3.1    23.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 149 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119F  LEU      4.8     0.2    -      -       -      -
    120F  LYS*     3.7    14.8    -      -       +      -
    123F  GLY*     3.4    10.8    -      -       -      -
    124F  ASP*     2.5    33.7    +      -       -      -
    127F  ARG*     2.9    19.9    +      -       -      -
    145F  SER*     2.9    42.1    +      -       -      +
    146F  GLN      3.8     0.4    -      -       -      +
    148F  ALA*     1.3    75.8    -      -       -      +
    150F  GLN*     1.3    58.7    +      -       -      +
    152F  ALA*     3.3     4.4    +      -       -      +
    153F  PHE*     2.8    29.6    +      -       -      +
    170F  LEU*     3.7    25.3    -      -       +      +
    173F  ASN*     4.0    16.6    -      -       +      +
    174F  PHE*     3.5    36.7    -      +       +      -
    177F  PHE*     3.7    22.4    -      +       +      -
----------------------------------------------------------
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Residues in contact with GLN 150 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    146F  GLN*     2.8    28.0    +      -       +      +
    147F  GLY*     3.9     5.6    -      -       -      +
    149F  TYR*     1.3    73.6    -      -       -      +
    151F  GLU*     1.3    63.0    +      -       -      +
    153F  PHE*     3.1    15.4    +      -       -      +
    154F  ASP*     2.9    55.7    +      -       -      +
    157F  LYS*     5.4     1.0    -      -       -      +
    174F  PHE*     3.7    23.0    -      -       +      -
    178F  TYR*     4.5     7.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 151 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115F  LYS*     4.3    10.6    +      -       -      -
    119F  LEU*     3.7    30.8    -      -       +      +
    147F  GLY      3.1    17.6    +      -       -      +
    148F  ALA*     3.9     3.7    -      -       -      +
    150F  GLN*     1.3    76.6    -      -       -      +
    152F  ALA*     1.3    65.1    +      -       -      +
    154F  ASP*     3.2     9.7    +      -       +      +
    155F  ILE*     3.0    41.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 152 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116F  VAL*     3.6    23.1    -      -       +      +
    119F  LEU*     3.6    24.3    -      -       +      +
    120F  LYS      4.0     5.4    -      -       -      +
    148F  ALA      3.1    13.6    +      -       -      +
    149F  TYR      3.5     8.3    -      -       -      +
    151F  GLU*     1.3    76.4    -      -       -      +
    153F  PHE*     1.3    56.9    +      -       -      +
    155F  ILE*     3.5     0.4    +      -       -      -
    156F  SER*     2.9    32.6    +      -       -      -
    170F  LEU*     3.4    18.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 153 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    149F  TYR      2.8    17.7    +      -       -      +
    150F  GLN*     3.1    22.6    +      -       -      +
    152F  ALA*     1.3    74.5    -      -       -      +
    154F  ASP*     1.3    61.7    +      -       -      +
    156F  SER*     3.0    19.8    +      -       -      -
    157F  LYS*     3.0    55.2    +      -       +      +
    167F  ARG*     5.5     5.6    -      -       +      -
    170F  LEU*     3.5    17.2    -      -       +      +
    171F  ALA*     4.4    16.2    -      -       +      -
    174F  PHE*     3.8    21.3    -      +       +      -
    191F  LEU*     3.7    39.7    -      -       +      -
    195F  ALA*     5.9     1.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 154 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    150F  GLN*     2.9    45.5    +      -       -      +
    151F  GLU*     3.2     9.0    +      -       +      +
    153F  PHE*     1.3    75.0    -      -       -      +
    155F  ILE*     1.3    66.9    -      -       +      +
    157F  LYS*     3.2    12.9    +      -       -      +
    158F  LYS*     3.0    23.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 155 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112F  PRO*     4.0    24.7    -      -       +      +
    115F  LYS*     3.9    35.9    -      -       +      +
    116F  VAL*     3.4    22.2    -      -       +      -
    119F  LEU*     4.0    17.7    -      -       +      -
    151F  GLU*     3.0    25.1    +      -       +      +
    154F  ASP*     1.3    76.3    -      -       +      +
    156F  SER*     1.3    58.4    +      -       -      +
    158F  LYS*     3.1     7.0    +      -       -      -
    159F  GLU*     2.8    36.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 156 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116F  VAL*     3.8    21.1    -      -       -      +
    152F  ALA      2.9    16.6    +      -       -      -
    153F  PHE*     3.0    19.1    +      -       -      -
    154F  ASP      3.2     0.2    -      -       -      -
    155F  ILE*     1.3    76.6    -      -       -      +
    157F  LYS*     1.3    61.2    +      -       -      +
    160F  MET*     2.9    42.5    +      -       -      +
    167F  ARG*     3.6    32.0    +      -       -      +
    170F  LEU*     3.9     5.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 157 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    150F  GLN*     5.4     1.2    -      -       -      +
    153F  PHE*     3.0    64.0    +      -       +      +
    154F  ASP*     3.7    10.7    +      -       -      +
    156F  SER*     1.3    83.1    +      -       -      +
    158F  LYS*     1.3    60.9    +      -       -      +
    160F  MET      4.3     2.1    -      -       -      +
    167F  ARG*     3.7    34.6    +      -       -      +
    194F  THR*     6.4     2.2    -      -       -      -
    198F  GLU*     5.7     2.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 158 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    154F  ASP      3.0    15.1    +      -       -      +
    155F  ILE*     3.7     6.1    -      -       +      +
    157F  LYS*     1.3    79.1    -      -       -      +
    159F  GLU*     1.3    84.5    +      -       +      +
    160F  MET      3.8     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 159 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112F  PRO*     3.8    39.1    -      -       +      +
    155F  ILE*     2.8    23.1    +      -       +      +
    158F  LYS*     1.3   110.7    -      -       +      +
    160F  MET*     1.3    65.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET 160 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112F  PRO*     3.6    15.5    -      -       +      +
    113F  GLU*     3.7    16.4    -      -       +      +
    116F  VAL*     3.3    40.8    -      -       +      -
    155F  ILE      5.1     0.4    -      -       -      +
    156F  SER*     2.9    18.3    +      -       -      +
    157F  LYS      4.3     3.3    -      -       -      +
    158F  LYS      3.8     0.2    -      -       -      -
    159F  GLU*     1.3    82.7    -      -       +      +
    161F  GLN*     1.3    64.6    +      -       -      +
    162F  PRO*     4.3     0.2    -      -       -      +
    164F  HIS*     4.1    35.0    -      -       +      -
    166F  ILE*     4.6     4.9    -      -       +      -
    167F  ARG*     2.7    49.0    +      -       -      -
----------------------------------------------------------
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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