Contacts of the helix formed by residues 301 - 326 (chain D) in PDB entry 6E7P


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 PHE 301 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75D  VAL*     4.0    40.6    -      -       +      -
     78D  VAL*     4.2    20.2    -      -       +      -
     79D  GLN*     3.9    26.2    -      -       -      -
    297D  PHE      4.0    13.2    -      -       -      +
    298D  ARG*     3.1    16.4    +      -       +      +
    300D  LEU*     1.3    79.4    -      -       -      +
    302D  ASP*     1.3    60.3    +      -       -      +
    303D  VAL      3.1     1.8    -      -       -      -
    304D  VAL*     3.0    36.6    +      -       +      +
    305D  VAL*     3.5     4.6    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 302 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79D  GLN*     3.9    19.2    +      -       -      +
    298D  ARG      4.0     4.1    +      -       -      -
    299D  LEU*     2.9    28.2    -      -       -      +
    301D  PHE*     1.3    76.5    -      -       -      +
    303D  VAL*     1.3    60.4    +      -       -      +
    305D  VAL*     3.0    14.0    +      -       -      +
    306D  ILE*     2.7    40.7    +      -       +      +
    369D  THR*     4.6    14.3    +      -       -      +
    372D  LYS*     4.8    12.3    +      -       +      +
    373D  ILE*     3.6    26.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 303 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    299D  LEU      4.6     0.7    -      -       -      +
    300D  LEU*     3.3    50.7    -      -       +      +
    302D  ASP*     1.3    90.1    +      -       -      +
    304D  VAL*     1.3    62.3    +      -       +      +
    306D  ILE*     3.4    20.3    -      -       +      +
    307D  LEU*     2.8    35.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 304 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75D  VAL*     4.5    17.9    -      -       +      -
    300D  LEU      4.2    13.0    -      -       -      +
    301D  PHE*     3.0    27.1    +      -       +      +
    303D  VAL*     1.3    79.5    -      -       +      +
    305D  VAL*     1.3    59.9    +      -       -      +
    307D  LEU*     3.1    12.3    +      -       +      +
    308D  THR*     2.8    45.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 305 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75D  VAL*     3.7    21.5    -      -       +      -
     76D  VAL*     4.7     7.6    -      -       +      -
     79D  GLN*     3.9    24.5    -      -       +      +
    301D  PHE*     3.9    13.2    -      -       +      +
    302D  ASP*     3.0    14.5    +      -       -      +
    304D  VAL*     1.3    75.0    -      -       -      +
    306D  ILE*     1.3    62.3    +      -       -      +
    308D  THR*     4.0     5.8    -      -       -      -
    309D  CYS*     3.4    30.0    +      -       -      +
    365D  THR*     4.0    19.5    -      -       +      -
    366D  ILE*     4.9     2.0    -      -       -      +
    369D  THR*     3.8    27.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 306 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    302D  ASP*     2.7    24.4    +      -       +      +
    303D  VAL*     3.4    26.2    -      -       +      +
    304D  VAL      3.2     0.2    -      -       -      -
    305D  VAL*     1.3    75.2    -      -       -      +
    307D  LEU*     1.3    54.1    +      -       +      +
    310D  SER*     2.6    33.7    +      -       -      -
    366D  ILE*     3.5    25.3    -      -       +      +
    369D  THR*     4.4    13.5    -      -       -      +
    370D  ILE*     5.8     7.9    -      -       +      +
    373D  ILE*     4.5    21.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 307 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    303D  VAL*     2.8    22.5    +      -       +      +
    304D  VAL*     3.1    15.7    +      -       +      +
    306D  ILE*     1.3    79.1    -      -       +      +
    308D  THR*     1.3    57.8    +      -       +      +
    310D  SER*     2.6    20.7    +      -       -      +
    311D  LEU*     2.7    40.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 308 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68D  LEU*     4.5    19.2    -      -       +      +
     71D  VAL*     4.6    22.9    -      -       +      -
     72D  LYS*     4.8    10.1    -      -       -      +
     75D  VAL*     4.5     9.6    -      -       +      +
     76D  VAL*     5.9     0.5    -      -       -      +
    304D  VAL*     2.8    37.0    +      -       +      +
    305D  VAL*     3.9     7.3    +      -       -      -
    307D  LEU*     1.3    76.8    -      -       +      +
    309D  CYS*     1.3    66.8    +      -       -      +
    311D  LEU*     3.9     8.2    -      -       +      +
    312D  SER*     3.0    28.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 309 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72D  LYS*     4.5    10.3    -      -       -      +
     76D  VAL*     4.0    18.2    -      -       -      -
    305D  VAL*     3.4    19.7    +      -       -      +
    308D  THR*     1.3    86.6    +      -       -      +
    310D  SER*     1.3    58.3    +      -       -      +
    312D  SER*     3.5     2.6    +      -       -      -
    313D  PHE*     2.8    27.6    +      -       -      +
    362D  ASP*     3.4    31.8    -      -       +      +
    365D  THR*     3.7    29.4    -      -       +      -
    366D  ILE*     5.1     9.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 310 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    306D  ILE      2.6    19.5    +      -       -      -
    307D  LEU*     2.6    23.2    +      -       -      +
    309D  CYS*     1.3    76.6    -      -       -      +
    311D  LEU*     1.3    62.7    +      -       -      +
    313D  PHE*     3.0    12.0    +      -       -      +
    314D  LEU*     2.8    27.7    +      -       -      +
    366D  ILE*     4.0    15.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 311 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68D  LEU*     4.3    17.8    -      -       +      +
    307D  LEU*     2.7    41.1    +      -       +      +
    308D  THR*     4.1     7.0    -      -       +      +
    310D  SER*     1.3    77.5    +      -       -      +
    312D  SER*     1.3    56.7    +      -       -      +
    314D  LEU*     3.6    13.5    +      -       +      +
    315D  LEU*     3.2    24.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 312 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68D  LEU*     4.2    16.1    -      -       -      +
     69D  GLN*     3.7     5.5    +      -       -      -
     72D  LYS*     3.4    32.6    +      -       -      -
    308D  THR      3.0    20.1    +      -       -      -
    309D  CYS      3.8     1.6    -      -       -      -
    311D  LEU*     1.3    74.3    -      -       -      +
    313D  PHE*     1.3    59.3    +      -       -      +
    314D  LEU      3.2     1.6    -      -       -      -
    315D  LEU*     3.7     5.8    -      -       -      +
    316D  CYS*     3.1    43.0    +      -       -      +
    362D  ASP*     3.7     2.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 313 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    309D  CYS      2.8    18.8    +      -       -      +
    310D  SER*     3.0    11.8    +      -       -      +
    312D  SER*     1.3    76.0    -      -       -      +
    314D  LEU*     1.3    63.6    +      -       -      +
    316D  CYS*     5.4     0.9    -      -       -      -
    317D  ALA*     3.5    27.5    +      -       +      +
    359D  VAL*     3.6    35.4    -      -       +      -
    362D  ASP*     3.9    23.5    +      -       +      +
    363D  VAL*     4.1    17.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 314 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    310D  SER      2.8    15.0    +      -       -      +
    311D  LEU*     3.7    14.1    -      -       +      +
    312D  SER      3.2     0.2    -      -       -      -
    313D  PHE*     1.3    80.6    -      -       -      +
    315D  LEU*     1.3    69.9    +      -       +      +
    317D  ALA*     4.4     1.8    -      -       -      +
    318D  ARG*     3.6    23.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 315 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65D  LYS*     3.5    60.3    -      -       +      +
     68D  LEU*     5.5     6.5    -      -       +      -
    311D  LEU      3.2    16.1    +      -       -      +
    312D  SER*     3.4     6.4    +      -       -      +
    314D  LEU*     1.3    86.1    -      -       +      +
    316D  CYS*     1.3    77.1    +      -       -      +
    318D  ARG*     3.3    27.2    +      -       +      +
    319D  SER*     3.8     4.3    +      -       -      -
    355D  TYR*     6.1     1.8    -      -       +      -
    801D  HZ7      4.2    16.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 316 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65D  LYS      5.8     0.9    -      -       -      -
     69D  GLN*     4.4    13.5    -      -       -      -
    312D  SER*     3.1    33.1    +      -       -      +
    313D  PHE*     5.2     0.9    -      -       -      +
    315D  LEU*     1.3    90.6    -      -       -      +
    317D  ALA*     1.3    61.4    -      -       -      +
    319D  SER*     3.2    15.8    +      -       -      -
    320D  LEU*     3.3    15.0    +      -       -      +
    355D  TYR*     3.9    33.8    -      -       +      +
    358D  LEU*     4.7     9.4    -      -       +      -
    359D  VAL*     4.6    13.7    -      -       +      +
    362D  ASP*     5.6     0.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 317 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    313D  PHE*     3.5    27.5    +      -       +      +
    314D  LEU*     4.4     2.0    -      -       -      +
    315D  LEU      3.3     0.8    -      -       -      -
    316D  CYS*     1.3    76.9    -      -       -      +
    318D  ARG*     1.3    55.5    +      -       -      +
    319D  SER      3.2     0.2    -      -       -      -
    320D  LEU*     3.1    22.4    +      -       +      +
    321D  LEU*     2.7    40.6    +      -       +      +
    359D  VAL*     4.8     5.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 318 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    314D  LEU*     3.6    18.2    +      -       +      +
    315D  LEU*     3.3    20.1    +      -       +      +
    316D  CYS      3.2     0.6    -      -       -      -
    317D  ALA*     1.3    79.1    -      -       -      +
    319D  SER*     1.3    56.2    +      -       -      +
    321D  LEU*     3.2    18.6    +      -       +      +
    322D  ARG*     2.8    32.0    +      -       -      +
    801D  HZ7      3.8    33.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 319 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48D  PHE*     4.6    14.2    -      -       -      -
    315D  LEU      3.8     4.4    +      -       -      -
    316D  CYS*     3.2    12.4    +      -       -      -
    317D  ALA      3.2     0.4    -      -       -      -
    318D  ARG*     1.3    76.5    -      -       -      +
    320D  LEU*     1.3    61.2    +      -       -      +
    322D  ARG*     3.1    10.6    +      -       -      +
    323D  GLY*     2.8    25.6    +      -       -      -
    352D  ASN*     4.9     2.1    +      -       -      -
    355D  TYR*     4.6    16.2    -      -       -      -
    801D  HZ7      3.6    32.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 320 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    316D  CYS      3.8     8.1    -      -       -      +
    317D  ALA*     3.1    18.5    +      -       +      +
    319D  SER*     1.3    77.3    -      -       -      +
    321D  LEU*     1.3    61.0    +      -       -      +
    323D  GLY*     4.0     1.1    -      -       -      +
    324D  PHE*     3.2    25.5    +      -       -      +
    351D  VAL*     3.8    32.5    -      -       +      +
    352D  ASN      5.0     1.6    -      -       -      +
    355D  TYR*     4.3    19.5    -      -       +      +
    356D  ILE*     4.6    17.9    -      -       +      +
    359D  VAL*     3.7    30.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 321 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    317D  ALA*     2.7    24.8    +      -       +      +
    318D  ARG*     3.4    21.1    -      -       +      +
    320D  LEU*     1.3    72.5    -      -       +      +
    322D  ARG*     1.3    61.1    +      -       -      +
    324D  PHE*     4.6     2.7    -      -       -      +
    325D  LEU*     3.2    28.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 322 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44D  ARG*     4.7    23.8    +      -       -      +
     47D  TYR*     6.1     2.8    -      -       -      +
     48D  PHE*     5.2    16.5    -      -       +      +
    318D  ARG*     2.8    20.8    +      -       -      +
    319D  SER*     3.1    10.7    +      -       -      +
    321D  LEU*     1.3    76.8    -      -       -      +
    323D  GLY*     1.3    65.1    +      -       -      +
    325D  LEU*     3.4     6.0    +      -       +      +
    326D  LEU*     3.1    41.8    +      -       +      +
    801D  HZ7      2.9    64.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 323 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48D  PHE*     4.5    21.1    -      -       -      -
    319D  SER      2.8    15.8    +      -       -      -
    320D  LEU*     3.4     2.2    +      -       -      -
    322D  ARG*     1.3    78.4    -      -       -      +
    324D  PHE*     1.3    61.7    +      -       -      +
    326D  LEU*     3.5    11.5    +      -       -      +
    327D  GLN*     3.3    20.0    +      -       -      +
    350D  PHE*     4.8     7.8    -      -       -      +
    351D  VAL*     5.3     7.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 324 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    320D  LEU      3.2    16.1    +      -       -      +
    321D  LEU*     4.7     2.7    -      -       -      +
    323D  GLY*     1.3    73.3    -      -       -      +
    325D  LEU*     1.3    67.2    +      -       -      +
    327D  GLN*     3.2    45.0    +      -       -      +
    328D  ASN*     4.2     2.3    +      -       -      +
    351D  VAL*     5.2     7.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 325 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44D  ARG*     5.7     2.0    -      -       -      +
    321D  LEU*     3.2    22.3    +      -       +      +
    322D  ARG*     3.4     6.7    +      -       +      +
    323D  GLY      3.3     0.2    -      -       -      -
    324D  PHE*     1.3    83.0    -      -       -      +
    326D  LEU*     1.3    72.2    +      -       +      +
    327D  GLN      3.3     2.1    +      -       -      -
    328D  ASN*     3.7     8.5    +      -       -      +
    329D  GLU*     3.0    23.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 326 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44D  ARG*     3.4    40.2    -      -       +      +
     45D  LEU*     4.5    24.8    -      -       +      +
     48D  PHE*     6.3     6.3    -      -       +      -
    322D  ARG*     3.1    46.5    +      -       +      +
    323D  GLY*     3.5     7.6    +      -       -      +
    324D  PHE      3.3     0.4    -      -       -      -
    325D  LEU*     1.3    92.8    -      -       +      +
    327D  GLN*     1.3    59.8    +      -       -      +
    328D  ASN      3.5     0.7    -      -       -      -
    329D  GLU*     3.4    21.6    +      -       +      +
    330D  PHE*     4.3     9.7    +      -       -      +
    350D  PHE*     5.5     2.6    -      -       -      -
----------------------------------------------------------
 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