Contacts of the helix formed by residues 158 - 184 (chain 2) in PDB entry 2WSF


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 GLU 158 (chain 2).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1552  LYS      4.9     4.6    +      -       -      +
    1562  LEU      2.9    11.1    +      -       -      +
    1572  LYS*     1.3    73.1    -      -       -      +
    1592  LEU*     1.3    67.5    +      -       -      +
    1622  LYS*     3.2    45.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 159 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1562  LEU*     3.1    35.0    -      -       +      +
    1572  LYS*     2.9    14.7    -      -       +      -
    1582  GLU*     1.3    82.7    -      -       -      +
    1602  ARG*     1.3    94.1    +      -       +      +
    1622  LYS*     3.4     4.5    +      -       -      +
    1632  GLU*     3.5     9.9    +      -       -      +
    3072  CLA      6.5     0.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 160 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1572  LYS*     3.5    47.6    -      -       -      +
    1592  LEU*     1.3   102.1    -      -       +      +
    1612  THR*     1.3    74.5    +      -       +      +
    1632  GLU*     3.2    19.2    +      -       -      +
    1642  ILE*     3.8     9.7    +      -       -      +
    3022  CLA      3.6    29.4    -      -       -      +
    3212  LMU      4.2    16.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 161 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     532  ARG*     5.8     4.2    +      -       -      +
    1572  LYS      4.6     3.3    +      -       -      +
    1582  GLU      4.1     0.8    +      -       -      -
    1592  LEU      3.2     2.0    +      -       -      -
    1602  ARG*     1.3    88.7    -      -       +      +
    1622  LYS*     1.3    65.8    +      -       -      +
    1632  GLU      3.2     0.4    -      -       -      -
    1642  ILE*     6.0     0.2    -      -       -      -
    1652  LYS*     3.2    57.8    -      -       +      +
    1662  ASN*     3.5     5.5    +      -       -      +
    3022  CLA      6.4     2.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 162 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1582  GLU*     3.2    44.0    +      -       +      +
    1592  LEU      4.0     0.7    -      -       -      +
    1612  THR*     1.3    78.5    -      -       -      +
    1632  GLU*     1.3    74.6    +      -       -      +
    1662  ASN*     3.8    18.8    +      -       -      +
    1672  GLY      4.4     0.2    +      -       -      -
    3052  CLA      2.1    59.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 163 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1592  LEU      3.5     5.3    +      -       -      +
    1602  ARG      3.2     9.8    +      -       -      +
    1612  THR      3.2     1.4    -      -       -      -
    1622  LYS*     1.3    94.0    -      -       -      +
    1642  ILE*     1.3    79.2    +      -       +      +
    1652  LYS      2.9     1.2    +      -       -      -
    1672  GLY*     3.0    12.6    +      -       -      -
    3032  CLA      3.9    11.8    -      -       -      +
    3052  CLA      4.8    19.5    -      -       -      +
    3072  CLA      2.8    76.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 164 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     632  PHE*     6.0     2.9    -      -       +      -
    1602  ARG      3.8     7.5    +      -       -      +
    1612  THR*     6.0     0.2    -      -       -      -
    1632  GLU*     1.3    87.2    -      -       +      +
    1652  LYS*     1.3    65.5    +      -       +      +
    1672  GLY*     2.5     7.9    -      -       -      -
    1682  ARG*     2.5    60.4    +      -       +      +
    3032  CLA      3.9    79.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 165 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     532  ARG*     5.6     8.5    -      -       +      -
     562  MET*     5.3     0.2    -      -       -      +
     572  LEU*     4.7    26.6    -      -       +      +
    1612  THR*     3.2    50.0    +      -       +      +
    1632  GLU      2.9     3.6    +      -       -      -
    1642  ILE*     1.3    82.5    -      -       +      +
    1662  ASN*     1.3    52.6    +      -       -      +
    1672  GLY      2.7     3.8    -      -       -      -
    1682  ARG*     2.3    51.0    +      -       +      +
    1692  LEU      3.2     2.3    +      -       -      -
    3022  CLA      5.8     3.8    -      -       -      +
    3092  CLA      4.3    28.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 166 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     492  LEU*     6.1     0.2    -      -       -      +
     522  SER*     4.0     3.7    +      -       -      +
    1612  THR      3.5     8.8    +      -       -      +
    1622  LYS*     4.1    19.1    -      -       -      +
    1632  GLU      3.7     1.6    +      -       -      -
    1652  LYS*     1.3    69.6    -      -       -      +
    1672  GLY*     1.3    65.4    +      -       -      +
    1692  LEU*     2.6    39.0    -      -       -      +
    1702  ALA*     3.3     6.8    +      -       -      +
    3052  CLA      2.8    64.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 167 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1632  GLU*     3.0    12.4    +      -       -      -
    1642  ILE*     2.5    14.8    +      -       -      -
    1652  LYS      2.7     1.6    -      -       -      -
    1662  ASN*     1.3    75.0    -      -       -      +
    1682  ARG*     1.3    55.8    +      -       -      -
    1692  LEU      2.5     1.9    +      -       -      -
    1702  ALA*     2.1    43.5    +      -       -      -
    1712  MET      2.8     9.3    +      -       -      -
    3052  CLA      5.6     9.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 168 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     562  MET*     3.2    27.4    -      -       +      +
     572  LEU*     3.7     8.7    -      -       -      +
     602  ALA*     4.9     1.6    -      -       +      -
     632  PHE*     3.2    38.7    -      -       -      -
    1642  ILE*     2.5    63.7    +      -       +      +
    1652  LYS*     2.3    38.9    +      -       +      +
    1672  GLY*     1.3    67.3    -      -       -      -
    1692  LEU*     1.3    61.2    +      -       -      +
    1712  MET*     2.7    37.1    -      -       -      +
    1722  LEU*     2.7    33.6    +      -       -      +
    3032  CLA      5.1    10.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 169 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     522  SER*     2.9    26.5    -      -       -      +
     562  MET*     3.3    32.3    -      -       +      +
    1652  LYS      3.2     4.4    +      -       -      -
    1662  ASN*     2.6    39.9    -      -       -      +
    1672  GLY      2.5     3.9    +      -       -      -
    1682  ARG*     1.3    74.9    -      -       -      +
    1702  ALA*     1.3    64.8    +      -       -      +
    1732  ALA      3.4     8.7    +      -       -      -
    3052  CLA      2.4    93.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 170 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1662  ASN      3.3     7.8    +      -       -      +
    1672  GLY*     2.1    23.2    +      -       -      +
    1692  LEU*     1.3    69.4    -      -       -      +
    1712  MET*     1.3    70.1    +      -       -      +
    1732  ALA*     2.8    21.8    +      -       -      +
    1742  VAL*     3.6     1.9    +      -       -      +
    3052  CLA      3.9    54.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 171 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     632  PHE*     4.6    10.3    -      -       +      -
    1672  GLY*     2.8     9.7    +      -       -      -
    1682  ARG*     2.7    44.2    -      -       -      +
    1702  ALA*     1.3    74.6    -      -       -      +
    1722  LEU*     1.3    87.2    +      -       +      +
    1742  VAL*     2.9    22.9    +      -       +      +
    1752  MET*     3.2    51.1    +      -       +      +
    3032  CLA      5.2    10.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 172 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     562  MET*     3.1    36.3    -      -       +      +
     592  ALA*     3.2    30.3    -      -       +      +
     622  ILE*     5.2     2.7    -      -       +      -
     632  PHE*     3.5    22.0    -      -       +      -
    1682  ARG*     2.7    39.9    +      -       +      +
    1702  ALA      2.8     1.8    +      -       -      -
    1712  MET*     1.3    96.2    -      -       -      +
    1732  ALA*     1.3    60.4    +      -       -      +
    1752  MET      4.2     5.2    -      -       -      +
    1762  GLY*     2.7    30.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 173 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     562  MET*     5.6     0.4    -      -       -      -
    1692  LEU      3.4    11.8    +      -       -      +
    1702  ALA      2.8    15.4    +      -       -      +
    1722  LEU*     1.3    76.0    -      -       -      +
    1742  VAL*     1.3    62.8    +      -       +      +
    1762  GLY      3.5     0.9    -      -       -      -
    1772  ALA*     2.7    27.4    +      -       -      +
    3052  CLA      4.3    24.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 174 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1702  ALA      3.6     2.0    +      -       -      +
    1712  MET*     2.9    18.2    +      -       +      +
    1732  ALA*     1.3    83.8    -      -       +      +
    1752  MET*     1.3    51.7    -      -       +      +
    1762  GLY      3.3     1.1    -      -       -      -
    1772  ALA*     3.4    14.1    +      -       +      -
    1782  TRP*     2.2    52.9    +      -       +      +
    3042  CLA      5.9     3.8    -      -       +      -
    3153  CLA      5.4    17.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 175 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     672  PHE*     5.4    21.7    -      -       +      -
    1712  MET*     3.2    41.2    +      -       +      +
    1722  LEU*     3.7     5.6    +      -       -      -
    1742  VAL*     1.3    82.3    -      -       +      +
    1762  GLY*     1.3    57.3    +      -       -      +
    1782  TRP*     3.4    56.4    +      -       +      +
    1792  PHE*     3.9     7.8    +      -       -      +
    1822  ILE*     4.6     5.5    -      -       -      +
    3032  CLA      6.5     1.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 176 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1722  LEU      2.7    19.5    +      -       -      -
    1732  ALA      3.5     1.6    -      -       -      -
    1752  MET*     1.3    74.9    -      -       -      +
    1772  ALA*     1.3    57.4    +      -       -      +
    1782  TRP      3.0     4.9    -      -       -      -
    1792  PHE*     3.3    28.2    -      -       -      +
    1802  GLN*     4.0     8.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 177 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1732  ALA      2.7    18.2    +      -       -      +
    1742  VAL*     3.4    23.3    +      -       +      +
    1762  GLY*     1.3    77.0    -      -       -      +
    1782  TRP*     1.3    66.3    +      -       +      +
    1802  GLN*     3.7    18.7    -      -       -      +
    1812  HIS*     3.9     6.2    +      -       -      +
    3042  CLA      4.8    11.2    -      -       +      +
    3153  CLA      5.7    12.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 178 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     672  PHE*     6.4     0.7    -      +       +      -
    1742  VAL*     2.2    41.4    +      -       +      +
    1752  MET*     3.4    41.0    -      -       +      +
    1762  GLY      3.0     1.2    -      -       -      -
    1772  ALA*     1.3    85.8    -      -       +      +
    1792  PHE*     1.3    57.9    +      -       -      +
    1802  GLN      3.1     1.1    -      -       -      -
    1812  HIS*     2.8    16.2    +      +       +      +
    1822  ILE*     2.3    54.9    +      -       +      +
    3042  CLA      3.1    68.4    -      +       +      -
    3082  CLA      5.5     7.0    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 179 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1752  MET      3.9     3.9    +      -       -      +
    1762  GLY*     3.3    21.5    +      -       -      +
    1782  TRP*     1.3    70.6    -      -       -      +
    1802  GLN*     1.3    59.7    +      -       -      +
    1822  ILE*     3.3    20.7    +      -       +      +
    1832  TYR*     2.7    74.4    +      +       -      -
    3122  CLA      5.0    18.6    -      -       +      -
    3162  CLA      4.2    24.0    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 180 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1762  GLY      4.0     9.4    +      -       -      +
    1772  ALA*     3.7    15.5    -      -       -      +
    1782  TRP      3.1     0.4    -      -       -      -
    1792  PHE*     1.3    82.9    -      -       -      +
    1812  HIS*     1.3    67.3    +      -       -      +
    1832  TYR*     4.3     4.3    +      -       -      -
    1842  THR*     2.6    36.1    +      -       +      +
    3042  CLA      6.2     2.2    -      -       +      -
    3122  CLA      6.0     1.6    -      -       -      +
    3153  CLA      4.7    31.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 181 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1772  ALA      3.9     2.6    +      -       -      +
    1782  TRP*     2.8    27.0    +      +       +      +
    1802  GLN*     1.3    78.4    -      -       -      +
    1822  ILE*     1.3    54.3    +      -       -      +
    1832  TYR*     2.8    15.4    +      -       -      -
    1842  THR*     4.0     3.0    +      -       -      +
    2032  THR*     4.4    18.9    -      -       +      +
    2042  ILE      3.4     9.2    +      -       -      +
    2052  PHE*     6.1     1.1    -      -       -      -
    2082  PHE      5.2     2.7    -      -       -      -
    3042  CLA      2.9   101.9    +      +       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 182 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     662  GLU*     4.7    15.3    -      -       -      +
     672  PHE*     4.7    18.2    -      -       +      -
    1752  MET      4.6     5.8    -      -       -      +
    1782  TRP*     2.3    56.3    +      -       +      +
    1792  PHE*     3.3    24.7    -      -       +      +
    1812  HIS*     1.3    64.0    -      -       +      +
    1832  TYR*     1.3    59.8    +      -       +      +
    2042  ILE*     2.2    32.1    -      -       -      +
    2052  PHE*     3.1    37.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 183 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1792  PHE*     2.7    66.0    -      +       -      -
    1802  GLN*     4.3     3.6    +      -       -      -
    1812  HIS      2.8     7.0    +      -       -      -
    1822  ILE*     1.3    79.0    -      -       +      +
    1842  THR*     1.3    99.5    +      -       -      +
    1852  GLY*     3.3     1.7    +      -       -      -
    1862  THR*     3.6    11.3    +      -       -      -
    1872  GLY      4.7     0.5    +      -       -      -
    2042  ILE*     4.2    17.3    -      -       +      +
    2052  PHE*     6.2     0.2    -      -       +      -
    3122  CLA      4.7    11.1    -      -       -      +
    3162  CLA      4.4    27.4    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 184 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1802  GLN*     2.6    36.6    +      -       +      +
    1812  HIS*     4.0     1.6    +      -       -      +
    1832  TYR*     1.3    96.0    -      -       +      +
    1852  GLY*     1.3    62.1    +      -       -      +
    1862  THR*     4.3     2.7    -      -       +      +
    2032  THR*     4.2    20.1    -      -       -      +
----------------------------------------------------------
 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