Contacts of the helix formed by residues 1971 - 1992 (chain L) in PDB entry 6LTJ


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 LEU1971 (chain L).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1862L  LYS*     6.0     0.4    -      -       +      -
   1969L  THR*     5.3     3.4    -      -       -      +
   1970L  LEU*     1.3    72.0    -      -       -      +
   1972L  ASP*     1.3    58.1    +      -       -      +
   1973L  TRP*     3.4    34.3    -      -       +      +
   1974L  GLN*     2.6    51.0    +      -       +      +
   1975L  ASP      3.1     6.8    +      -       -      -
    457P  GLN*     5.3     5.8    -      -       -      +
    461P  ARG*     3.3    21.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP1972 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1860L  GLU*     3.5    31.7    -      -       +      +
   1861L  SER      5.3     0.5    -      -       -      +
   1970L  LEU      3.3     5.7    +      -       -      -
   1971L  LEU*     1.3    71.1    -      -       -      +
   1973L  TRP*     1.3    66.1    +      -       -      +
   1974L  GLN      3.3     0.2    -      -       -      -
   1975L  ASP*     3.5    14.2    -      -       +      +
   1976L  SER*     2.9    31.4    +      -       -      -
    461P  ARG*     4.9     5.1    -      -       +      +
    464P  LYS*     4.6    15.8    +      -       -      +
    471P  GLY*     5.7     3.3    +      -       -      -
    472P  ASN*     4.9    11.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with TRP1973 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1726L  GLU      5.2     5.4    -      -       -      -
   1858L  HIS*     4.0    25.0    -      +       +      +
   1860L  GLU*     3.7    20.6    -      -       +      -
   1861L  SER      3.1    28.0    -      -       -      +
   1862L  LYS*     3.7    32.9    -      -       +      +
   1971L  LEU*     3.1    37.4    -      -       +      +
   1972L  ASP*     1.3    83.2    +      -       -      +
   1974L  GLN*     1.3    89.6    +      -       +      +
   1976L  SER*     3.4     2.1    +      -       -      -
   1977L  LEU*     2.9    51.2    +      -       +      +
   2048L  TRP*     4.7     8.7    -      +       -      -
----------------------------------------------------------
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Residues in contact with GLN1974 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1969L  THR      4.2     2.3    -      -       -      +
   1970L  LEU*     3.5    11.2    -      -       +      +
   1971L  LEU*     2.6    50.6    +      -       +      +
   1973L  TRP*     1.3   110.0    -      -       +      +
   1975L  ASP*     1.3    54.0    +      -       -      +
   1977L  LEU*     3.4     0.8    +      -       -      -
   1978L  ALA*     2.9    31.2    +      -       -      +
   2048L  TRP*     3.5    64.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP1975 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1970L  LEU*     4.1    26.8    -      -       +      +
   1971L  LEU      3.1     5.4    +      -       -      +
   1972L  ASP*     3.5    18.3    -      -       +      +
   1973L  TRP      3.2     0.2    -      -       -      -
   1974L  GLN*     1.3    77.6    -      -       -      +
   1976L  SER*     1.3    58.1    +      -       -      +
   1978L  ALA*     3.3     5.3    +      -       -      +
   1979L  LYS*     2.9    58.7    +      -       -      +
    188Q  MET*     5.9     2.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER1976 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    430I  LEU*     5.3     0.7    -      -       -      +
   1857L  THR      4.5     2.6    -      -       -      +
   1858L  HIS*     3.9    14.6    -      -       -      -
   1859L  PHE*     4.8     1.9    +      -       -      +
   1860L  GLU*     2.6    36.0    +      -       -      -
   1972L  ASP      2.9     8.5    +      -       -      -
   1973L  TRP      3.8     3.1    -      -       -      -
   1974L  GLN      3.4     0.2    -      -       -      -
   1975L  ASP*     1.3    78.1    +      -       -      +
   1977L  LEU*     1.3    56.4    +      -       -      +
   1979L  LYS*     3.3     9.7    +      -       -      +
   1980L  ARG*     3.0    29.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1977 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1723L  CYS*     4.4    13.0    -      -       -      -
   1726L  GLU*     3.5    47.1    -      -       +      +
   1727L  ILE*     3.6    24.5    -      -       +      -
   1857L  THR*     3.6    24.7    -      -       +      +
   1858L  HIS*     4.4     8.0    -      -       +      +
   1973L  TRP*     2.9    40.9    +      -       +      +
   1974L  GLN*     3.8     4.7    -      -       -      +
   1976L  SER*     1.3    77.1    -      -       -      +
   1978L  ALA*     1.3    57.4    +      -       -      +
   1980L  ARG*     3.3     1.6    +      -       +      +
   1981L  CYS*     2.9    26.9    +      -       -      +
   2048L  TRP*     4.8     1.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA1978 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1727L  ILE*     4.1    10.5    -      -       -      +
   1970L  LEU*     6.4     0.9    -      -       +      -
   1974L  GLN      2.9    18.7    +      -       -      +
   1975L  ASP*     3.8     7.0    -      -       -      +
   1977L  LEU*     1.3    75.2    -      -       -      +
   1979L  LYS*     1.3    66.3    +      -       -      +
   1981L  CYS*     3.3     1.4    +      -       -      +
   1982L  VAL*     2.9    30.3    +      -       +      +
   2048L  TRP*     4.2    10.3    -      -       +      -
   2051L  ASP*     5.8     1.1    -      -       -      +
   2052L  CYS*     3.9    24.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS1979 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    430I  LEU*     4.0     5.5    -      -       +      +
    433I  ALA*     3.6    41.9    +      -       +      +
    434I  LEU*     4.5    20.0    +      -       +      +
   1975L  ASP*     2.9    46.9    +      -       -      +
   1976L  SER*     3.6     8.1    -      -       -      +
   1978L  ALA*     1.3    76.1    -      -       -      +
   1980L  ARG*     1.3    58.9    +      -       -      +
   1982L  VAL*     3.4     4.9    +      -       -      +
   1983L  CYS*     2.9    28.1    +      -       -      +
    188Q  MET*     5.1    15.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG1980 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    428I  THR      3.6    16.0    +      -       -      -
    430I  LEU*     3.5    28.6    -      -       +      +
   1681L  LEU*     3.8    14.6    -      -       -      +
   1684L  SER*     3.1    28.1    +      -       -      -
   1685L  THR*     2.6    33.1    +      -       -      +
   1688L  LEU*     4.2    18.1    -      -       +      +
   1719L  TYR*     5.4     5.8    -      -       +      -
   1723L  CYS*     4.1    13.2    -      -       -      -
   1856L  GLN      4.6     2.4    +      -       -      -
   1857L  THR*     3.1    34.9    +      -       -      +
   1858L  HIS*     5.7     0.4    -      -       -      +
   1976L  SER      3.0    16.6    +      -       -      +
   1977L  LEU*     3.7     4.7    -      -       +      +
   1978L  ALA      3.2     0.2    -      -       -      -
   1979L  LYS*     1.3    74.6    -      -       -      +
   1981L  CYS*     1.3    64.2    +      -       -      +
   1983L  CYS*     3.2     1.9    +      -       -      +
   1984L  VAL*     3.0    29.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with CYS1981 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1720L  PHE*     3.6    17.4    -      -       -      -
   1723L  CYS*     3.5    30.5    -      -       +      -
   1724L  LEU*     3.8     9.2    -      -       -      -
   1727L  ILE*     3.6    15.3    -      -       +      -
   1977L  LEU      2.9    16.0    +      -       -      +
   1978L  ALA*     3.3     3.3    +      -       -      +
   1980L  ARG*     1.3    75.6    -      -       -      +
   1982L  VAL*     1.3    57.4    +      -       -      +
   1984L  VAL*     3.3     2.3    +      -       -      +
   1985L  SER*     3.0    26.5    +      -       -      -
   2052L  CYS*     4.7     1.1    -      -       -      -
   2056L  LEU*     3.6    30.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL1982 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    436I  ALA*     4.9    15.3    -      -       +      +
   1978L  ALA*     2.9    22.1    +      -       +      +
   1979L  LYS*     3.9     5.6    -      -       -      +
   1981L  CYS*     1.3    76.3    -      -       -      +
   1983L  CYS*     1.3    58.3    +      -       -      +
   1985L  SER*     2.9     7.8    +      -       -      -
   1986L  ASN*     2.9    29.0    +      -       +      +
   2052L  CYS*     4.1    19.3    -      -       +      -
   2055L  MET*     3.5    44.4    -      -       +      -
   2056L  LEU*     4.0     4.7    -      -       +      -
   2059L  ASN*     4.3    10.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with CYS1983 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    430I  LEU*     3.9    27.8    -      -       +      -
    432I  THR*     3.0    31.0    -      -       -      +
    433I  ALA*     4.7     4.0    -      -       +      -
   1688L  LEU*     4.4    14.1    -      -       +      -
   1692L  ASN*     3.1    22.6    -      -       -      +
   1979L  LYS      2.9    18.3    +      -       -      +
   1980L  ARG      3.2     5.6    +      -       -      +
   1982L  VAL*     1.3    77.9    -      -       -      +
   1984L  VAL*     1.3    58.1    +      -       +      +
   1986L  ASN*     3.4     3.0    +      -       -      -
   1987L  THR*     2.9    31.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL1984 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1688L  LEU*     3.8    25.8    -      -       +      -
   1716L  LEU*     3.6    22.2    -      -       +      +
   1719L  TYR*     4.2    14.4    -      -       +      -
   1720L  PHE*     3.6    33.9    -      -       +      +
   1723L  CYS*     4.4     6.1    -      -       -      -
   1980L  ARG*     3.0    22.9    +      -       +      +
   1981L  CYS*     3.8     4.0    -      -       -      +
   1983L  CYS*     1.3    74.2    -      -       -      +
   1985L  SER*     1.3    64.1    +      -       -      +
   1987L  THR*     3.1     7.9    +      -       -      -
   1988L  ILE*     3.0    25.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER1985 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1720L  PHE*     3.4    32.7    -      -       -      -
   1981L  CYS      3.0    11.5    +      -       -      -
   1982L  VAL*     2.9     8.1    +      -       -      -
   1984L  VAL*     1.3    76.9    -      -       -      +
   1986L  ASN*     1.3    57.6    +      -       -      +
   1988L  ILE*     3.3     5.5    +      -       -      +
   1989L  ARG*     2.9    27.9    +      -       -      +
   2056L  LEU*     3.4    15.7    -      -       -      +
   2059L  ASN*     2.7    37.1    +      -       -      +
   2063L  THR*     4.8     1.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASN1986 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    436I  ALA      5.5     3.8    +      -       -      +
    439I  TYR*     2.8    28.7    +      -       -      +
    440I  LYS*     3.5    24.4    -      -       -      +
   1692L  ASN*     2.9    24.3    +      -       -      +
   1982L  VAL*     2.9    21.0    +      -       +      +
   1983L  CYS*     3.8     4.3    -      -       -      +
   1985L  SER*     1.3    74.6    +      -       -      +
   1987L  THR*     1.3    61.3    +      -       -      +
   1989L  ARG*     4.0    13.0    -      -       -      +
   1990L  SER*     2.9    42.0    +      -       -      -
   2059L  ASN*     3.9    11.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR1987 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1688L  LEU*     4.4    10.5    +      -       +      +
   1691L  ILE*     3.4    29.9    -      -       +      +
   1692L  ASN*     2.9    24.3    +      -       -      +
   1695L  LEU*     3.5     9.3    -      -       +      +
   1716L  LEU*     3.5    33.0    -      -       +      -
   1983L  CYS*     2.9    21.0    +      -       -      -
   1984L  VAL*     3.1    12.4    +      -       -      -
   1986L  ASN*     1.3    77.9    -      -       -      +
   1988L  ILE*     1.3    56.1    +      -       -      +
   1991L  LEU*     3.0    24.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE1988 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1713L  LEU*     5.1     4.0    -      -       +      -
   1716L  LEU*     4.3    29.6    -      -       +      +
   1717L  VAL*     4.8     4.0    -      -       +      +
   1720L  PHE*     3.9    33.7    -      -       +      -
   1984L  VAL*     3.0    13.2    +      -       +      +
   1985L  SER*     3.7     7.2    -      -       -      +
   1987L  THR*     1.3    74.4    -      -       -      +
   1989L  ARG*     1.3    65.5    +      -       -      +
   1991L  LEU*     3.1     9.4    +      -       -      +
   1992L  SER*     3.0    17.8    +      -       -      -
   2001L  MET*     3.6    22.8    -      -       +      +
   2007L  LEU*     3.8    31.4    -      -       +      -
   2011L  LEU*     5.6     2.2    -      -       +      -
   2063L  THR*     4.0    10.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG1989 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    440I  LYS*     3.3    33.9    -      -       -      +
    441I  ARG      2.5    32.3    +      -       -      +
    442I  SER*     3.9     8.9    -      -       -      +
    443I  LYS*     3.9    10.1    -      -       -      +
   1985L  SER      2.9    17.6    +      -       -      +
   1986L  ASN*     3.3    13.2    +      -       -      +
   1988L  ILE*     1.3    76.8    -      -       -      +
   1990L  SER*     1.3    59.2    +      -       -      +
   1992L  SER*     2.3    31.3    +      -       -      -
   1993L  PHE*     3.2    18.6    -      -       +      -
   2058L  GLU*     3.8     8.1    +      -       -      +
   2059L  ASN*     3.1    32.8    +      -       +      +
   2062L  VAL*     3.7    31.9    -      -       +      +
   2063L  THR*     3.4    19.7    +      -       -      +
   2106L  LEU*     6.3     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER1990 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    439I  TYR      4.4     1.6    +      -       -      -
    441I  ARG*     3.8    18.0    +      -       -      +
   1692L  ASN*     4.2     3.2    +      -       -      -
   1695L  LEU*     3.6    36.6    -      -       -      +
   1696L  TYR*     5.5     1.4    +      -       -      -
   1701L  ILE*     4.1     6.8    -      -       -      +
   1986L  ASN*     2.9    33.5    +      -       -      -
   1989L  ARG*     1.3    75.8    -      -       -      +
   1991L  LEU*     1.3    61.8    +      -       -      +
   1993L  PHE*     3.2    26.7    +      -       -      +
   1994L  VAL      4.1     1.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU1991 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1691L  ILE*     5.9     0.9    -      -       +      -
   1695L  LEU*     3.6    26.9    -      -       +      +
   1704L  PHE*     3.9    19.1    -      -       +      +
   1706L  LEU*     4.0    28.7    -      -       +      -
   1712L  LEU*     4.7     3.8    -      -       +      -
   1713L  LEU*     4.7     6.7    -      -       +      -
   1716L  LEU*     3.6    29.8    -      -       +      -
   1987L  THR*     3.0    16.2    +      -       +      +
   1988L  ILE*     3.1    10.3    +      -       -      +
   1990L  SER*     1.3    78.0    -      -       -      +
   1992L  SER*     1.3    61.5    +      -       -      +
   1993L  PHE      3.0     1.7    +      -       -      -
   1994L  VAL*     3.3     4.7    +      -       -      -
   1997L  ASN*     2.9    42.8    -      -       -      +
   2001L  MET*     3.8     8.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER1992 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1988L  ILE      3.0    11.0    +      -       -      -
   1989L  ARG*     2.3    28.0    +      -       -      +
   1991L  LEU*     1.3    76.6    -      -       -      +
   1993L  PHE*     1.3    59.3    +      -       -      +
   1994L  VAL      3.6     5.5    +      -       -      +
   1997L  ASN*     4.9     0.7    -      -       -      -
   1998L  ASP*     4.9     7.2    +      -       -      +
   2001L  MET*     3.6    15.9    -      -       -      -
   2063L  THR*     4.0    21.2    -      -       -      -
   2066L  ASN*     3.2    43.5    +      -       -      +
   2067L  ILE*     4.4     3.1    -      -       -      -
----------------------------------------------------------
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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