Contacts of the helix formed by residues 474 - 498 (chain A) in PDB entry 2FY5


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 PRO 474 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    472A  ALA      3.2     7.2    -      -       -      +
    473A  VAL*     1.3    94.6    -      -       +      +
    475A  ALA*     1.3    66.0    +      -       -      +
    476A  SER*     4.1    15.3    -      -       -      +
    477A  GLU*     3.0    15.3    +      -       +      +
    478A  LYS*     3.0    18.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 475 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    473A  VAL      3.6     2.0    +      -       -      -
    474A  PRO*     1.3    72.0    -      -       -      +
    476A  SER*     1.3    57.6    +      -       -      +
    478A  LYS*     3.1    15.6    +      -       +      +
    479A  LEU*     3.0    27.7    +      -       -      +
    603A  LEU*     4.2     9.6    -      -       +      +
    606A  LEU*     3.7    26.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 476 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    474A  PRO*     4.1    10.4    -      -       -      +
    475A  ALA*     1.3    79.2    -      -       -      +
    477A  GLU*     1.3    63.1    +      -       -      +
    479A  LEU*     3.5     9.2    +      -       -      +
    480A  LEU*     3.3    25.8    +      -       -      +
    606A  LEU*     4.1    10.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 477 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    473A  VAL*     3.6    19.7    -      -       +      -
    474A  PRO*     3.0    22.9    +      -       +      +
    476A  SER*     1.3    80.3    +      -       -      +
    478A  LYS*     1.3    65.3    +      -       -      +
    480A  LEU*     3.1    23.9    +      -       -      +
    481A  LEU*     3.0    44.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 478 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    462A  PHE*     3.7     4.1    -      -       -      -
    465A  ALA*     3.3    30.0    +      -       +      +
    466A  VAL*     3.9    31.1    +      -       +      +
    473A  VAL*     3.3    31.9    +      -       +      +
    474A  PRO      3.0    13.8    +      -       -      +
    475A  ALA*     3.4    15.4    -      -       +      +
    477A  GLU*     1.3    77.0    -      -       -      +
    479A  LEU*     1.3    55.4    +      -       -      +
    481A  LEU*     3.2    11.3    +      -       -      +
    482A  LEU*     2.8    30.0    +      -       -      +
    603A  LEU*     4.0    23.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 479 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    475A  ALA      3.0    12.2    +      -       -      +
    476A  SER*     3.6    12.3    -      -       -      +
    477A  GLU      3.2     0.2    -      -       -      -
    478A  LYS*     1.3    77.6    -      -       -      +
    480A  LEU*     1.3    66.4    +      -       +      +
    482A  LEU*     3.0    14.0    +      -       +      +
    483A  LYS*     2.9    50.0    +      -       +      +
    603A  LEU*     3.5    37.2    -      -       +      +
    604A  CYS*     4.3     8.3    -      -       -      +
    606A  LEU*     4.9    10.5    -      -       +      -
    607A  LEU      5.9     1.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 480 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    476A  SER      3.4    14.4    -      -       -      +
    477A  GLU*     3.1    31.5    +      -       -      +
    479A  LEU*     1.3    82.0    -      -       +      +
    481A  LEU*     1.3    59.4    +      -       +      +
    483A  LYS*     3.0     9.8    +      -       +      +
    484A  ASP*     2.8    29.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 481 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    458A  GLU      4.3     3.6    -      -       -      +
    461A  ALA*     3.6    24.5    -      -       +      +
    462A  PHE*     3.9    16.9    -      -       +      +
    465A  ALA*     3.5    31.4    -      -       +      -
    473A  VAL*     4.9     0.9    -      -       +      -
    477A  GLU*     3.0    41.0    +      -       +      +
    478A  LYS      3.6     6.1    -      -       -      +
    480A  LEU*     1.3    76.4    -      -       +      +
    482A  LEU*     1.3    56.8    +      -       -      +
    484A  ASP*     3.8    12.5    -      -       +      +
    485A  ALA*     2.9    29.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 482 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    416A  PHE*     5.1     0.7    -      -       +      -
    419A  VAL*     5.1     0.2    -      -       +      -
    462A  PHE*     3.6    26.9    -      -       +      -
    478A  LYS      2.8    13.6    +      -       -      +
    479A  LEU*     3.2    12.6    -      -       +      +
    481A  LEU*     1.3    77.8    -      -       -      +
    483A  LYS*     1.3    63.6    +      -       +      +
    485A  ALA*     3.2     4.6    +      -       -      +
    486A  ILE*     2.9    51.7    +      -       +      +
    600A  MET*     3.7    32.8    -      -       +      +
    603A  LEU*     3.7    33.9    -      -       +      -
    604A  CYS*     4.2    10.8    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 483 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    409A  GLN*     3.5    22.7    +      -       -      +
    410A  LYS      5.7     0.4    -      -       -      +
    411A  CYS*     3.7    30.5    -      -       -      -
    479A  LEU*     2.9    31.8    +      -       +      +
    480A  LEU*     3.6     8.7    -      -       +      +
    482A  LEU*     1.3    81.0    -      -       +      +
    484A  ASP*     1.3    61.1    +      -       -      +
    486A  ILE*     3.2     3.5    +      -       -      +
    487A  ARG*     2.8    28.1    +      -       -      +
    604A  CYS*     4.1    23.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 484 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    458A  GLU*     3.3    25.2    -      -       +      +
    480A  LEU      2.8    15.6    +      -       -      +
    481A  LEU*     3.8    15.0    -      -       +      +
    483A  LYS*     1.3    76.9    -      -       -      +
    485A  ALA*     1.3    63.7    +      -       -      +
    487A  ARG*     2.6    50.4    +      -       -      +
    488A  ALA*     3.0    10.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 485 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    419A  VAL*     4.2    21.1    -      -       +      +
    456A  THR*     5.1     2.1    +      -       -      -
    458A  GLU*     3.7    27.1    -      -       -      +
    459A  ALA*     4.3     5.8    -      -       +      +
    462A  PHE*     4.2     9.2    -      -       +      -
    481A  LEU      2.9    18.9    +      -       -      +
    482A  LEU      3.4     5.2    -      -       -      +
    483A  LYS      3.2     0.2    -      -       -      -
    484A  ASP*     1.3    77.4    -      -       -      +
    486A  ILE*     1.3    62.4    +      -       -      +
    487A  ARG      3.1     0.3    +      -       -      -
    488A  ALA*     3.1     3.3    +      -       -      +
    489A  GLN*     3.1    22.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 486 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    411A  CYS*     3.6    39.7    -      -       +      -
    412A  SER      4.5     2.5    -      -       -      +
    415A  ALA*     3.8    18.1    -      -       +      +
    416A  PHE*     3.6    27.1    -      -       +      +
    419A  VAL*     3.8    21.3    -      -       +      -
    482A  LEU*     2.9    42.5    +      -       +      +
    483A  LYS*     3.8     5.6    -      -       +      +
    485A  ALA*     1.3    76.3    -      -       -      +
    487A  ARG*     1.3    61.2    +      -       -      +
    489A  GLN*     4.5     2.2    -      -       -      -
    490A  THR*     3.2    24.1    +      -       -      +
    600A  MET*     4.4     1.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 487 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    458A  GLU*     4.0    16.4    +      -       -      +
    483A  LYS      2.8    13.3    +      -       -      +
    484A  ASP*     2.6    59.7    +      -       -      +
    485A  ALA      3.0     0.4    -      -       -      -
    486A  ILE*     1.3    79.5    -      -       -      +
    488A  ALA*     1.3    69.5    +      -       -      +
    490A  THR*     3.5     5.6    +      -       -      -
    491A  ALA*     3.0    32.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 488 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    456A  THR*     4.4    12.4    -      -       +      +
    458A  GLU*     3.4    40.2    -      -       +      +
    484A  ASP      3.0    10.3    +      -       -      +
    485A  ALA      3.8     5.2    -      -       -      +
    487A  ARG*     1.3    81.4    -      -       -      +
    489A  GLN*     1.3    66.3    +      -       -      +
    491A  ALA*     3.3     7.4    +      -       -      +
    492A  TYR*     3.0    24.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 489 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    414A  ASP*     5.3     0.4    +      -       -      +
    415A  ALA*     3.7    29.8    -      -       +      +
    418A  GLN*     3.5    12.4    -      -       +      +
    419A  VAL*     4.5     5.3    -      -       +      +
    437A  GLU*     3.0    19.8    +      -       -      -
    452A  ILE*     3.4    15.1    -      -       -      +
    453A  ARG      4.7     0.2    -      -       -      +
    454A  SER*     2.7    49.2    +      -       -      +
    456A  THR*     4.3     7.7    -      -       +      +
    485A  ALA      3.1    14.0    +      -       -      +
    486A  ILE*     4.0     5.8    -      -       -      +
    487A  ARG      3.3     0.2    -      -       -      -
    488A  ALA*     1.3    75.3    -      -       -      +
    490A  THR*     1.3    58.2    +      -       -      +
    492A  TYR*     3.2     5.7    +      -       -      +
    493A  THR*     2.8    36.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 490 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144A  GLN*     3.6    23.1    -      -       -      +
    412A  SER*     3.6    11.3    -      -       -      -
    415A  ALA*     3.3    17.8    -      -       -      +
    486A  ILE*     3.2    18.7    +      -       -      +
    487A  ARG*     3.8     5.4    -      -       -      -
    488A  ALA      3.3     0.2    -      -       -      -
    489A  GLN*     1.3    78.6    -      -       -      +
    491A  ALA*     1.3    57.4    +      -       -      +
    493A  THR*     3.6     6.4    -      -       -      -
    494A  VAL*     3.0    35.7    +      -       +      +
   2000A  SOP      6.2     0.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 491 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    487A  ARG*     3.0    25.5    +      -       +      +
    488A  ALA*     3.6     9.0    -      -       -      +
    489A  GLN      3.2     0.2    -      -       -      -
    490A  THR*     1.3    78.7    -      -       -      +
    492A  TYR*     1.3    61.2    +      -       -      +
    494A  VAL*     3.6     6.4    +      -       -      +
    495A  MET*     3.1    22.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 492 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27A  THR*     4.3     3.5    -      -       +      +
     31A  CYS*     4.0    20.0    -      -       -      -
    451A  ASN      3.5    16.7    +      -       -      -
    452A  ILE*     3.6    20.4    -      -       +      -
    453A  ARG*     3.3    50.7    -      -       +      +
    456A  THR*     5.1     7.9    -      -       +      -
    488A  ALA      3.0    16.7    +      -       -      +
    489A  GLN*     3.7     6.5    -      -       -      +
    491A  ALA*     1.3    73.9    -      -       -      +
    493A  THR*     1.3    56.6    +      -       -      +
    495A  MET*     3.1    34.4    +      -       +      +
    496A  ALA*     2.7    32.7    +      -       +      +
    501A  ALA*     4.4     5.8    -      -       +      -
    502A  ILE*     4.0    20.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 493 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144A  GLN*     4.3    21.8    -      -       +      +
    414A  ASP*     4.9     3.9    +      -       -      +
    415A  ALA*     5.8     1.2    -      -       -      +
    437A  GLU*     4.7     0.9    +      -       -      -
    452A  ILE*     3.6    22.8    -      -       +      +
    489A  GLN*     2.8    30.3    +      -       -      +
    490A  THR*     3.6     8.7    -      -       -      -
    492A  TYR*     1.3    75.3    -      -       -      +
    494A  VAL*     1.3    66.0    +      -       -      +
    496A  ALA*     2.9    12.6    +      -       -      +
    497A  ILE*     2.9    20.9    +      -       +      +
   2000A  SOP      3.5    31.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 494 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144A  GLN*     3.7    22.2    -      -       -      +
    145A  LEU*     4.1    22.0    -      -       +      -
    490A  THR*     3.0    25.3    +      -       +      +
    491A  ALA*     3.8     6.5    -      -       -      +
    493A  THR*     1.3    75.2    -      -       -      +
    495A  MET*     1.3    64.7    +      -       -      +
    497A  ILE*     3.3    13.2    -      -       -      +
    498A  THR*     2.9    25.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 495 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23A  GLN*     5.0     4.9    -      -       -      +
     27A  THR*     4.4    21.5    -      -       +      -
    491A  ALA      3.1    11.8    +      -       -      +
    492A  TYR*     3.1    61.8    +      -       +      +
    494A  VAL*     1.3    81.0    -      -       -      +
    496A  ALA*     1.3    59.1    +      -       -      +
    498A  THR*     3.2     9.4    +      -       -      -
    500A  MET*     3.0    57.8    +      -       +      +
    501A  ALA*     3.9     5.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 496 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    439A  ALA*     3.8     9.6    -      -       +      -
    441A  ILE*     3.7     9.7    -      -       -      +
    450A  ASP*     4.4     6.2    -      -       +      +
    451A  ASN      4.1     4.7    -      -       -      +
    452A  ILE*     3.4    33.0    -      -       +      -
    492A  TYR*     2.7    14.7    +      -       +      +
    493A  THR      2.9     5.9    +      -       -      +
    495A  MET*     1.3    72.1    -      -       -      +
    497A  ILE*     1.3    57.9    +      -       -      +
    499A  GLY*     3.0    20.4    +      -       -      -
    501A  ALA*     3.7    22.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 497 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144A  GLN*     2.9    31.9    -      -       +      +
    145A  LEU*     4.2     4.9    -      -       +      -
    439A  ALA*     4.1    12.8    -      -       +      -
    440A  SER      3.7    25.1    -      -       -      +
    441A  ILE*     4.4     4.7    -      -       -      +
    443A  ARG*     2.8    45.6    +      -       -      +
    444A  PHE*     4.0    10.9    -      -       -      -
    493A  THR*     2.9    17.5    +      -       +      +
    494A  VAL*     3.3    17.7    -      -       -      +
    496A  ALA*     1.3    71.2    -      -       -      +
    498A  THR*     1.3    57.0    +      -       +      +
    499A  GLY      3.3     2.0    +      -       -      -
   2000A  SOP      3.8    29.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 498 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17A  PRO*     3.4    12.1    -      -       -      +
    145A  LEU*     3.6    16.4    -      -       +      -
    443A  ARG*     3.2    26.2    -      -       -      +
    444A  PHE*     3.7    15.7    -      -       -      -
    494A  VAL*     2.9    23.4    +      -       +      +
    495A  MET*     3.2    10.4    +      -       -      -
    496A  ALA      3.1     0.4    +      -       -      -
    497A  ILE*     1.3    77.7    -      -       +      +
    499A  GLY*     1.3    60.2    +      -       -      +
    500A  MET*     3.5    15.1    +      -       -      +
----------------------------------------------------------
 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