Contacts of the helix formed by residues 279 - 301 (chain C) in PDB entry 4UQJ


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 LYS 279 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24C  GLN*     3.4    21.8    +      -       -      +
     25C  GLU*     5.0     1.8    -      -       -      +
    229C  ASP*     3.2    16.6    -      -       +      +
    278C  ILE*     1.3    78.1    -      -       -      +
    280C  TYR*     1.3    61.6    +      -       +      +
    281C  THR*     3.1    16.6    -      -       +      +
    282C  SER*     2.9     5.7    +      -       -      +
    283C  ALA*     2.9    24.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 280 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99C  PRO      5.4     1.8    -      -       -      -
    114C  ARG*     5.4     4.5    -      -       +      -
    141C  ARG*     4.9    13.2    -      -       -      -
    197C  GLU*     6.1     1.2    -      -       -      -
    198C  ARG*     6.0     6.3    -      -       +      -
    224C  ASN*     4.8    13.6    -      -       +      +
    225C  LEU*     3.7    39.9    -      -       +      +
    226C  GLY*     3.6    18.4    -      -       -      -
    229C  ASP*     2.9    22.1    +      -       +      +
    246C  GLN*     5.9     0.2    -      -       -      +
    247C  ILE*     3.5    24.4    -      -       +      +
    248C  VAL*     4.2    14.1    -      -       +      -
    278C  ILE      3.5     1.2    +      -       -      -
    279C  LYS*     1.3    72.7    -      -       +      +
    281C  THR*     1.3    80.3    +      -       +      +
    283C  ALA*     3.7     1.2    -      -       -      +
    284C  LEU*     3.0    45.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 281 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25C  GLU*     2.8    31.3    +      -       -      +
     76C  PHE*     4.9     7.6    -      -       +      -
     99C  PRO*     3.9    11.3    -      -       +      +
    100C  SER*     6.5     0.2    -      -       -      -
    279C  LYS*     3.8    10.7    -      -       +      +
    280C  TYR*     1.3   111.4    -      -       +      +
    282C  SER*     1.3    58.8    +      -       -      +
    284C  LEU*     3.5     8.1    +      -       -      +
    285C  THR*     3.0    25.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 282 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24C  GLN*     3.3    40.3    +      -       -      +
     25C  GLU*     3.3    22.9    +      -       -      +
     28C  ALA*     3.4     7.8    -      -       -      +
    278C  ILE*     3.6    19.1    -      -       -      -
    279C  LYS*     2.9     9.6    +      -       -      +
    281C  THR*     1.3    78.3    +      -       -      +
    283C  ALA*     1.3    65.3    +      -       -      +
    285C  THR*     3.1    17.9    +      -       -      -
    286C  TYR*     3.1     9.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 283 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    248C  VAL*     3.6    30.5    -      -       +      -
    278C  ILE*     3.6    14.8    -      -       +      +
    279C  LYS      2.9    11.9    +      -       -      +
    280C  TYR      3.7     3.6    -      -       -      +
    282C  SER*     1.3    76.1    -      -       -      +
    284C  LEU*     1.3    59.1    +      -       +      +
    286C  TYR*     3.4     4.4    +      -       -      +
    287C  ASP*     3.1    32.3    +      -       -      +
    341C  LEU*     4.0    23.0    -      -       +      +
    342C  SER*     5.5     1.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 284 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99C  PRO*     3.7    27.6    -      -       +      +
    113C  MET*     3.3    29.3    -      -       +      +
    114C  ARG*     3.6    31.4    -      -       +      +
    115C  PRO*     4.8     4.3    -      -       +      -
    225C  LEU*     5.3     0.7    -      -       +      -
    247C  ILE*     5.4     2.9    -      -       +      -
    280C  TYR*     3.0    39.5    +      -       +      +
    281C  THR*     3.8     1.1    -      -       -      +
    282C  SER      3.2     0.2    -      -       -      -
    283C  ALA*     1.3    75.0    -      -       +      +
    285C  THR*     1.3    55.8    +      -       -      +
    287C  ASP*     3.2     5.3    +      -       +      +
    288C  ALA*     2.8    34.4    +      -       -      +
    342C  SER*     3.5    33.0    -      -       -      +
    353C  ARG*     3.9     1.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 285 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18C  PHE*     4.4     0.7    -      -       +      -
     25C  GLU*     3.3    27.7    +      -       -      +
     29C  PHE*     3.6    20.4    -      -       +      -
     74C  PHE*     3.4    28.3    -      -       +      -
     76C  PHE*     3.7     9.2    -      -       -      -
     99C  PRO*     3.7    11.4    -      -       -      +
    281C  THR      3.0    14.1    +      -       -      -
    282C  SER*     3.1    11.0    +      -       -      -
    284C  LEU*     1.3    79.3    -      -       -      +
    286C  TYR*     1.3    63.2    +      -       -      +
    288C  ALA*     3.1    15.6    +      -       -      +
    289C  VAL*     3.3    10.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 286 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28C  ALA*     3.9    19.4    +      -       +      +
     31C  VAL*     4.2     7.4    -      -       +      -
     32C  GLY*     3.7    26.2    -      -       -      -
     35C  GLN*     3.3    25.8    -      -       +      +
     36C  PHE*     3.4    32.3    -      +       -      -
    254C  LEU*     5.8     4.6    -      -       +      +
    258C  PHE*     3.4    34.6    -      +       +      -
    282C  SER      3.1     8.2    +      -       -      +
    283C  ALA      3.6     7.0    -      -       -      +
    284C  LEU      3.3     0.2    -      -       -      -
    285C  THR*     1.3    79.2    -      -       -      +
    287C  ASP*     1.3    77.5    +      -       -      +
    288C  ALA      3.3     0.7    +      -       -      -
    289C  VAL*     3.3    15.4    +      -       -      +
    290C  GLN*     3.5     9.0    +      -       -      -
    340C  GLY*     5.8     0.4    -      -       -      -
    341C  LEU*     3.7    24.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 287 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113C  MET*     4.3     3.8    -      -       -      -
    283C  ALA      3.1    16.9    +      -       -      +
    284C  LEU*     3.2     7.8    +      -       +      +
    286C  TYR*     1.3    86.9    -      -       -      +
    288C  ALA*     1.3    64.5    +      -       -      +
    290C  GLN*     3.4     9.6    +      -       -      +
    291C  VAL*     3.1    28.6    +      -       -      +
    340C  GLY*     3.3    12.9    -      -       -      -
    341C  LEU*     2.8    20.3    +      -       -      -
    342C  SER*     2.9    38.6    +      -       -      +
    345C  ILE*     3.7    15.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 288 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74C  PHE*     3.4    33.0    -      -       +      -
     97C  ILE*     3.9     5.6    -      -       +      +
    113C  MET*     3.7    19.3    -      -       +      -
    284C  LEU      2.8    13.3    +      -       -      +
    285C  THR      3.1    11.9    +      -       -      +
    287C  ASP*     1.3    74.5    -      -       -      +
    289C  VAL*     1.3    66.2    +      -       +      +
    291C  VAL*     3.1     4.8    +      -       -      +
    292C  MET*     3.0    30.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 289 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29C  PHE*     3.8    43.1    -      -       +      +
     32C  GLY*     3.4    34.1    -      -       -      +
     33C  MET*     3.8    15.7    -      -       -      +
     36C  PHE*     4.1     4.0    -      -       +      -
     43C  LEU*     5.1     4.5    -      -       +      -
    285C  THR      3.3    14.1    +      -       -      +
    286C  TYR      3.6     7.9    -      -       -      +
    287C  ASP      3.3     0.2    -      -       -      -
    288C  ALA*     1.3    76.7    -      -       -      +
    290C  GLN*     1.3    57.0    +      -       -      +
    292C  MET*     3.3    10.8    +      -       -      +
    293C  THR*     3.0    38.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 290 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36C  PHE*     3.4    50.9    -      -       +      -
    286C  TYR*     3.5     4.9    +      -       -      +
    287C  ASP*     3.4    14.4    +      -       -      +
    288C  ALA      3.2     0.4    -      -       -      -
    289C  VAL*     1.3    78.8    -      -       -      +
    291C  VAL*     1.3    57.7    +      -       -      +
    293C  THR*     3.4     2.8    +      -       -      -
    294C  GLU*     3.0    28.2    +      -       +      +
    338C  VAL*     3.4    35.7    -      -       +      +
    339C  GLU      3.2    27.3    +      -       -      +
    340C  GLY*     4.0     9.5    -      -       -      -
    345C  ILE*     5.3     0.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 291 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97C  ILE*     5.8     1.8    -      -       +      -
    111C  ILE*     5.0     3.4    -      -       +      -
    113C  MET*     4.3    14.4    -      -       +      -
    287C  ASP      3.1    17.2    +      -       -      +
    288C  ALA*     3.1     9.2    +      -       -      +
    290C  GLN*     1.3    77.9    -      -       -      +
    292C  MET*     1.3    57.7    +      -       +      +
    294C  GLU      3.5     0.3    +      -       -      -
    295C  ALA*     3.0    27.7    +      -       -      +
    333C  LEU*     4.2    19.5    -      -       +      +
    336C  VAL*     3.5    33.8    -      -       +      +
    338C  VAL*     4.7     3.4    -      -       +      -
    345C  ILE*     4.2    28.5    -      -       +      -
    347C  PHE*     4.2     9.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 292 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14C  ILE*     3.7    43.3    -      -       +      -
     29C  PHE*     5.4     4.0    -      -       -      -
     43C  LEU*     4.5    12.4    -      -       +      +
     72C  ALA*     4.1    20.2    -      -       +      -
     74C  PHE*     4.1    25.6    -      -       +      +
     97C  ILE*     4.3    26.9    -      -       +      -
    288C  ALA      3.0    20.6    +      -       -      +
    289C  VAL*     3.3     8.3    +      -       -      +
    291C  VAL*     1.3    76.9    -      -       +      +
    293C  THR*     1.3    61.5    +      -       -      +
    295C  ALA*     3.7     1.2    -      -       -      +
    296C  PHE*     3.1    25.5    +      -       -      +
    333C  LEU*     4.0    11.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 293 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36C  PHE*     3.7    37.9    +      -       +      +
     38C  THR*     5.4     4.0    -      -       +      -
     41C  PHE*     3.5    25.1    -      -       +      -
     43C  LEU*     4.2    15.0    -      -       +      +
    289C  VAL*     3.0    19.1    +      -       -      +
    290C  GLN*     3.7     5.6    -      -       -      -
    292C  MET*     1.3    74.7    -      -       -      +
    294C  GLU*     1.3    61.3    +      -       -      +
    296C  PHE      3.3     1.0    +      -       -      -
    297C  ARG*     3.0    31.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 294 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    290C  GLN*     3.0    17.9    +      -       +      +
    293C  THR*     1.3    77.0    -      -       -      +
    295C  ALA*     1.3    56.4    +      -       -      +
    297C  ARG*     3.7     8.2    -      -       -      +
    298C  ASN*     3.1    59.1    +      -       -      +
    336C  VAL*     3.9    19.5    -      -       +      -
    337C  GLN      5.1     1.3    -      -       -      +
    338C  VAL*     3.9    26.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 295 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    291C  VAL      3.0    19.8    +      -       -      +
    292C  MET      3.7     2.9    -      -       -      +
    294C  GLU*     1.3    74.3    -      -       -      +
    296C  PHE*     1.3    65.1    +      -       -      +
    297C  ARG      3.1     2.3    +      -       -      -
    298C  ASN*     3.3    11.8    +      -       -      +
    299C  LEU*     3.4    21.5    +      -       -      +
    332C  ALA*     3.9     7.7    -      -       +      +
    333C  LEU*     3.5    34.5    -      -       +      +
    336C  VAL*     3.6    16.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 296 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12C  ILE*     3.6    33.7    -      -       +      +
     41C  PHE*     4.1    11.9    -      -       +      -
     43C  LEU*     5.6     1.8    -      -       +      -
    292C  MET      3.1    14.7    +      -       -      +
    293C  THR      4.0     2.7    -      -       -      +
    295C  ALA*     1.3    78.8    -      -       -      +
    297C  ARG*     1.3    61.3    +      -       -      +
    299C  LEU*     3.6    14.3    +      -       -      +
    300C  ARG*     3.5    18.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 297 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41C  PHE*     3.7    22.0    -      -       +      -
    293C  THR*     3.0    19.4    +      -       +      +
    294C  GLU*     3.7    13.0    -      -       -      +
    295C  ALA      3.1     0.2    -      -       -      -
    296C  PHE*     1.3    75.7    -      -       -      +
    298C  ASN*     1.3    63.8    +      -       -      +
    299C  LEU      3.1     4.7    -      -       -      -
    300C  ARG*     3.3     5.6    +      -       -      +
    301C  LYS*     3.2    24.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 298 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    294C  GLU*     3.1    47.2    +      -       -      +
    295C  ALA*     3.3     7.8    +      -       -      +
    297C  ARG*     1.3    76.9    -      -       -      +
    299C  LEU*     1.3    64.6    +      -       +      +
    301C  LYS*     4.2     7.1    -      -       -      +
    302C  GLN*     3.0    25.9    +      -       -      +
    332C  ALA*     5.3     4.9    +      -       +      +
    335C  GLN*     5.4     4.9    +      -       -      +
    336C  VAL*     5.0    10.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 299 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    295C  ALA      3.4    10.7    +      -       -      +
    296C  PHE*     3.8    14.6    -      -       -      +
    297C  ARG      3.1     0.8    -      -       -      -
    298C  ASN*     1.3    86.6    -      -       +      +
    300C  ARG*     1.3    61.7    +      -       -      +
    302C  GLN*     3.5     2.1    +      -       -      -
    303C  ARG      3.4     2.6    +      -       -      -
    304C  ILE*     3.1    60.0    +      -       +      +
    306C  ILE*     3.9    29.6    -      -       +      -
    328C  GLU*     4.6     6.7    -      -       +      +
    329C  ILE*     4.5    15.7    -      -       +      +
    332C  ALA*     3.4    32.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 300 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10C  ASN*     5.8     3.4    -      -       -      +
     41C  PHE*     5.4     8.5    -      -       +      -
    296C  PHE      3.5    10.2    +      -       -      +
    297C  ARG*     3.3    10.4    +      -       -      +
    299C  LEU*     1.3    79.0    -      -       -      +
    301C  LYS*     1.3    60.5    +      -       -      +
    302C  GLN      3.1     1.6    -      -       -      -
    303C  ARG*     3.3    13.0    +      -       -      +
    304C  ILE      5.5     0.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 301 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    297C  ARG      3.2    14.2    +      -       -      +
    298C  ASN*     4.3     6.5    -      -       -      +
    300C  ARG*     1.3    77.7    -      -       -      +
    302C  GLN*     1.3    56.9    +      -       -      +
    303C  ARG*     3.3     2.2    +      -       -      +
----------------------------------------------------------
 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