Contacts of the helix formed by residues 85 - 107 (chain B) in PDB entry 1VGO


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 TYR 85 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69B  GLY*     2.6    35.8    +      -       -      +
     71B  THR*     3.3    41.0    +      -       +      +
     83B  ILE*     3.5     3.5    +      -       +      -
     84B  TYR*     1.3    70.3    -      -       -      +
     86B  ALA*     1.3    65.1    +      -       -      +
     88B  TYR*     3.1     9.8    +      -       -      +
     89B  ALA*     3.0    21.2    +      -       -      +
    128B  LEU*     4.1    20.4    -      -       +      -
    132B  LEU*     4.2    33.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 86 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60B  ALA*     3.5    32.2    -      -       +      +
     63B  ALA*     4.3    14.4    -      -       +      -
     64B  MET*     3.6    12.6    -      -       +      +
     69B  GLY*     4.1     8.6    +      -       -      -
     84B  TYR*     5.4     0.2    -      -       +      -
     85B  TYR*     1.3    78.3    -      -       -      +
     87B  ARG*     1.3    53.4    +      -       -      +
     89B  ALA*     3.8     7.2    -      -       -      +
     90B  ASP*     2.7    37.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 87 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17B  LEU*     5.4     1.6    -      -       -      +
     61B  TYR*     5.6     3.0    +      -       -      -
     64B  MET*     3.8    31.9    -      -       +      +
     84B  TYR*     3.4    29.3    +      -       +      +
     85B  TYR      3.1     0.6    -      -       -      -
     86B  ALA*     1.3    77.9    -      -       -      +
     88B  TYR*     1.3    70.2    +      -       +      +
     90B  ASP*     3.3     7.0    -      -       -      +
     91B  TRP*     3.2    66.4    +      -       +      +
    209B  GLU*     4.1     8.3    +      -       -      -
    210B  THR*     4.3    24.0    +      -       -      +
    213B  PHE*     3.3    46.1    -      -       -      +
    217B  ASP*     5.5     2.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 88 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83B  ILE*     4.6     5.8    -      -       +      -
     84B  TYR      3.5    19.3    -      -       -      -
     85B  TYR      3.1     6.7    +      -       -      +
     87B  ARG*     1.3    88.8    +      -       -      +
     89B  ALA*     1.3    61.8    +      -       -      +
     90B  ASP      3.1     1.8    -      -       -      -
     91B  TRP*     4.1    22.1    -      +       -      +
     92B  LEU*     2.9    29.7    +      -       -      +
    124B  ILE*     3.3    32.7    -      -       +      +
    127B  GLY      3.7    21.3    -      -       -      -
    128B  LEU*     3.7    34.8    -      -       +      -
    131B  ALA*     3.6    15.6    -      -       +      +
    194B  TRP*     3.2    28.6    +      -       -      -
    199B  GLU*     5.0     0.3    +      -       -      +
    261B  RET      4.1     6.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 89 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56B  ILE*     5.8     0.2    -      -       -      -
     85B  TYR      3.0    15.6    +      -       -      +
     86B  ALA*     3.8     8.1    -      -       -      +
     88B  TYR*     1.3    73.4    -      -       -      +
     90B  ASP*     1.3    65.6    +      -       -      +
     92B  LEU*     3.4    10.2    +      -       +      -
     93B  PHE*     2.9    40.0    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 90 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56B  ILE*     4.7     8.5    -      -       -      +
     57B  ALA*     3.6    25.6    +      -       -      +
     60B  ALA*     3.6    21.0    -      -       +      +
     61B  TYR*     4.2    12.5    -      -       -      -
     64B  MET*     5.3     0.5    -      -       -      +
     86B  ALA      2.7    17.8    +      -       -      +
     87B  ARG*     3.3     7.5    -      -       -      +
     89B  ALA*     1.3    78.2    -      -       -      +
     91B  TRP*     1.3    69.3    +      -       -      +
     93B  PHE*     3.0     5.0    +      -       -      +
     94B  THR*     2.8    44.5    +      -       -      -
    217B  ASP*     4.7     0.2    -      -       -      +
    221B  LYS*     3.8     9.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 91 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87B  ARG*     3.2    50.0    +      -       +      +
     88B  TYR*     3.5    21.1    +      +       -      +
     90B  ASP*     1.3    85.7    +      -       -      +
     92B  LEU*     1.3    58.4    +      -       -      +
     94B  THR*     3.9     1.8    -      -       -      -
     95B  THR*     2.4    40.0    +      -       +      -
    124B  ILE*     3.6    20.0    -      -       +      +
    190B  TYR*     3.7    17.7    -      +       -      -
    213B  PHE*     3.8    27.8    -      +       -      -
    217B  ASP*     3.2    28.7    +      -       -      -
    221B  LYS*     3.9     4.7    -      -       -      -
    261B  RET      3.3    63.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 92 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88B  TYR      2.9    19.3    +      -       -      +
     89B  ALA*     3.5    11.2    -      -       +      +
     90B  ASP      3.1     0.4    -      -       -      -
     91B  TRP*     1.3    77.7    -      -       -      +
     93B  PHE*     1.3    80.6    +      -       +      +
     95B  THR*     4.6     0.2    -      -       -      -
     96B  PRO*     2.9    20.5    -      -       -      +
    121B  ALA*     4.0    37.4    -      -       +      +
    124B  ILE*     4.0    11.9    -      -       +      +
    125B  VAL*     5.2     4.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 93 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56B  ILE*     4.0    26.7    -      -       +      -
     89B  ALA*     2.9    32.7    +      -       +      -
     90B  ASP      3.0     4.4    +      -       -      +
     92B  LEU*     1.3    96.6    -      -       +      +
     94B  THR*     1.3    61.7    +      -       -      +
     96B  PRO*     3.1    14.8    -      -       -      +
     97B  LEU*     3.0    27.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 94 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53B  VAL*     3.5    33.1    +      -       +      +
     56B  ILE*     4.2     8.5    -      -       -      +
     90B  ASP*     2.8    29.0    +      -       -      -
     91B  TRP*     4.4     0.7    -      -       -      -
     93B  PHE*     1.3    76.4    -      -       -      +
     95B  THR*     1.3    66.5    +      -       -      +
     97B  LEU*     3.1    17.8    +      -       -      +
     98B  LEU*     3.1    18.3    +      -       +      +
    221B  LYS*     3.1    26.8    -      -       -      -
    261B  RET      3.4    14.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 95 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91B  TRP*     2.4    30.8    +      -       +      +
     94B  THR*     1.3    75.2    -      -       -      +
     96B  PRO*     1.3    67.6    -      -       -      +
     98B  LEU*     3.4     4.3    +      -       -      +
     99B  LEU*     3.1    26.7    +      -       -      +
    120B  ASP*     2.6    31.5    +      -       -      -
    123B  MET*     5.0     0.4    -      -       +      -
    124B  ILE*     4.0     7.8    -      -       +      +
    187B  TRP*     3.8    13.6    -      -       +      -
    261B  RET      3.7    48.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 96 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91B  TRP      3.5     0.2    -      -       -      +
     92B  LEU*     2.9    22.9    -      -       +      +
     93B  PHE*     3.1    19.7    -      -       -      +
     95B  THR*     1.3    99.2    -      -       -      +
     97B  LEU*     1.3    59.7    +      -       +      +
     99B  LEU*     3.4     7.2    +      -       +      +
    100B  LEU*     3.0    27.4    +      -       -      +
    117B  ILE*     4.2    34.1    -      -       +      +
    120B  ASP*     3.7    12.3    -      -       -      +
    121B  ALA*     5.6     3.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 97 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49B  ILE*     3.4    26.8    -      -       +      +
     52B  LEU*     3.9    28.0    -      -       +      -
     53B  VAL*     3.8    19.5    -      -       +      +
     56B  ILE*     3.8    26.2    -      -       +      -
     93B  PHE      3.0    19.5    -      -       -      +
     94B  THR*     3.1     8.0    +      -       -      +
     96B  PRO*     1.3    77.7    -      -       +      +
     98B  LEU*     1.3    63.0    +      -       -      +
    100B  LEU*     3.2    16.7    +      -       +      +
    101B  ASP*     3.1    17.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 98 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50B  THR*     5.6     1.8    -      -       +      -
     53B  VAL*     4.0    22.2    -      -       +      -
     94B  THR*     3.1    33.2    +      -       +      +
     95B  THR*     3.9     4.0    -      -       -      +
     96B  PRO      3.4     0.2    -      -       -      -
     97B  LEU*     1.3    73.4    -      -       -      +
     99B  LEU*     1.3    66.8    +      -       -      +
    101B  ASP*     3.1    24.0    +      -       -      +
    102B  LEU*     3.4    12.2    +      -       +      +
    187B  TRP*     4.0    16.4    -      -       +      +
    220B  ALA      3.7    21.3    -      -       -      +
    221B  LYS*     4.8     2.0    -      -       -      +
    224B  PHE*     3.6    40.1    -      -       +      -
    261B  RET      4.0    19.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 99 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95B  THR      3.1    15.4    +      -       -      +
     96B  PRO*     3.6     7.6    -      -       +      +
     98B  LEU*     1.3    76.7    -      -       -      +
    100B  LEU*     1.3    56.5    +      -       -      +
    102B  LEU*     3.1    15.3    +      -       +      +
    103B  ALA*     2.8    28.5    +      -       -      +
    116B  LEU*     3.6    35.1    -      -       +      +
    117B  ILE*     4.8     5.6    -      -       +      -
    120B  ASP*     3.3    44.2    -      -       +      +
    153B  VAL*     4.3    10.8    -      -       +      -
    157B  LEU*     4.3    15.9    -      -       +      -
    183B  VAL*     5.3     0.2    -      -       +      -
    187B  TRP*     3.6    25.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 100 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49B  ILE*     4.3    24.2    -      -       +      -
     96B  PRO      3.0    15.0    +      -       -      +
     97B  LEU*     3.3    21.1    -      -       +      +
     99B  LEU*     1.3    75.5    -      -       -      +
    101B  ASP*     1.3    67.7    +      -       -      +
    103B  ALA*     3.1    10.7    +      -       +      -
    104B  LEU*     2.8    47.2    +      -       +      +
    113B  ILE*     4.6    17.5    -      -       +      -
    117B  ILE*     5.2     6.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 101 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46B  TYR*     3.4    27.8    -      -       +      +
     49B  ILE*     3.7    17.9    -      -       -      +
     50B  THR*     2.9    30.2    +      -       -      +
     53B  VAL*     5.3     0.5    -      -       -      +
     97B  LEU      3.1    11.8    +      -       -      +
     98B  LEU*     3.1    14.6    +      -       -      +
    100B  LEU*     1.3    80.7    -      -       -      +
    102B  LEU*     1.3    57.4    +      -       +      +
    104B  LEU*     3.3     1.3    +      -       -      -
    105B  LEU*     2.8    30.6    +      -       -      +
    224B  PHE*     3.9    15.2    -      -       +      -
    228B  LEU*     3.5    21.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 102 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98B  LEU      3.7    13.0    -      -       -      +
     99B  LEU*     3.1    14.1    +      -       +      +
    101B  ASP*     1.3    76.1    -      -       -      +
    103B  ALA*     1.3    58.6    +      -       -      +
    105B  LEU*     3.1     7.2    +      -       +      +
    106B  ALA*     2.9    31.4    +      -       -      +
    157B  LEU*     3.9    38.6    -      -       +      -
    161B  LEU*     3.7     2.8    -      -       +      +
    176B  PHE*     3.7    16.3    -      -       +      -
    179B  LEU*     3.9    33.4    -      -       +      -
    180B  THR*     4.3    13.7    -      -       -      +
    183B  VAL*     4.1    18.2    -      -       +      -
    224B  PHE*     4.1    11.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 103 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99B  LEU      2.8    13.4    +      -       -      +
    100B  LEU*     3.1    15.2    +      -       +      +
    102B  LEU*     1.3    76.2    -      -       -      +
    104B  LEU*     1.3    58.8    +      -       -      +
    106B  ALA      3.4     0.3    +      -       -      -
    107B  LYS*     3.0    23.0    +      -       -      -
    108B  VAL*     3.4    14.5    +      -       +      +
    113B  ILE*     3.8    33.4    -      -       +      +
    116B  LEU*     4.9     6.3    -      -       +      -
    161B  LEU*     3.3    15.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 104 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45B  GLU*     4.3    21.3    -      -       +      +
     46B  TYR*     3.1    26.9    +      -       +      +
     49B  ILE*     3.5    32.5    -      -       +      -
    100B  LEU*     2.8    32.6    +      -       +      +
    101B  ASP      3.6     3.4    -      -       -      +
    103B  ALA*     1.3    78.7    -      -       +      +
    105B  LEU*     1.3    64.3    +      -       -      +
    107B  LYS*     3.4    20.0    +      -       -      +
    113B  ILE*     5.2     6.7    -      -       +      -
    168B  ARG*     3.9     6.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 105 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46B  TYR*     3.1    22.8    +      -       +      +
    101B  ASP      2.8    16.0    +      -       -      +
    102B  LEU*     3.1    11.2    +      -       +      +
    104B  LEU*     1.3    77.6    -      -       -      +
    106B  ALA*     1.3    55.8    +      -       -      +
    165B  ALA*     4.8     1.4    -      -       -      +
    168B  ARG*     2.7    24.9    +      -       -      +
    172B  VAL*     3.4    36.5    -      -       +      +
    175B  THR*     4.4     3.8    -      -       +      -
    176B  PHE*     4.0    26.2    -      -       +      +
    179B  LEU*     4.0    15.3    -      -       +      -
    228B  LEU*     3.9    26.0    -      -       +      -
    233B  ALA*     3.9    19.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 106 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102B  LEU      2.9    15.6    +      -       -      +
    105B  LEU*     1.3    76.3    -      -       -      +
    107B  LYS*     1.3    71.7    +      -       -      +
    108B  VAL*     3.8     3.1    -      -       +      -
    161B  LEU*     3.3    44.4    -      -       +      +
    164B  ALA*     3.4    23.4    -      -       -      +
    165B  ALA*     3.8    14.7    -      -       +      +
    168B  ARG*     4.1     1.5    -      -       -      +
    176B  PHE*     3.9     4.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 107 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42B  GLU*     3.2    27.0    +      -       -      -
     46B  TYR*     5.7     0.4    -      -       -      -
    103B  ALA      3.0     8.5    +      -       -      -
    104B  LEU*     3.4    11.9    +      -       -      +
    106B  ALA*     1.3    79.6    -      -       -      +
    108B  VAL*     1.3    64.3    +      -       -      +
    164B  ALA*     4.6     3.9    -      -       -      +
    167B  LYS*     5.9     1.9    +      -       -      -
    168B  ARG*     3.3    46.9    -      -       -      +
    238B  THR*     3.8    20.7    -      -       -      +
----------------------------------------------------------
 Back to top of page


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