Contacts of the helix formed by residues 1548 - 1569 (chain C) in PDB entry 5JCZ


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 ASP1548 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1545C  ARG*     3.5    14.1    +      -       +      +
   1546C  GLY      3.3     1.6    -      -       -      -
   1547C  ASP*     1.3    77.6    -      -       -      +
   1549C  PHE*     1.3    66.5    +      -       -      +
   1550C  GLU*     3.6    13.8    +      -       -      +
   1551C  THR*     2.6    40.6    +      -       -      +
   1552C  VAL*     3.2    25.2    +      -       -      +
   1614C  VAL*     4.5     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE1549 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1547C  ASP      3.7     4.8    +      -       -      -
   1548C  ASP*     1.3    73.2    +      -       -      +
   1550C  GLU*     1.3    59.4    +      -       +      +
   1552C  VAL*     3.3     4.1    +      -       -      +
   1553C  SER*     2.9    36.3    +      -       -      -
   1611C  LEU*     3.5    30.2    -      -       +      +
   1614C  VAL*     3.9    21.5    -      -       +      +
   1615C  LEU*     4.1    18.2    -      -       +      -
   1618C  ILE*     4.8     5.1    -      -       +      +
   1669C  PHE*     3.6    62.6    -      +       +      -
   1672C  VAL*     3.9    23.1    -      -       +      -
   1673C  MET*     4.0    21.5    -      -       +      -
   1686C  VAL*     5.3     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU1550 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1495C  PRO*     4.6     8.3    -      -       +      +
   1496C  ARG*     2.7    53.6    +      -       -      +
   1548C  ASP*     3.3    12.6    +      -       -      +
   1549C  PHE*     1.3    78.4    -      -       +      +
   1551C  THR*     1.3    58.3    +      -       -      +
   1554C  PHE*     3.0    25.8    +      -       -      +
   1672C  VAL*     3.9    39.1    -      -       +      +
   1676C  HIS*     3.1    16.5    +      -       +      -
----------------------------------------------------------
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Residues in contact with THR1551 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1495C  PRO*     4.7     7.7    -      -       +      +
   1541C  VAL*     3.7    23.3    -      -       +      +
   1542C  LEU*     4.5     5.8    -      -       +      -
   1545C  ARG*     3.1    50.6    +      -       +      +
   1548C  ASP*     2.6    31.4    +      -       -      +
   1550C  GLU*     1.3    75.2    -      -       -      +
   1552C  VAL*     1.3    65.6    +      -       -      +
   1554C  PHE*     3.4     3.7    +      -       -      +
   1555C  TRP*     3.2    29.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL1552 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1542C  LEU*     3.8    12.6    -      -       +      -
   1545C  ARG      4.7     2.0    -      -       -      +
   1546C  GLY      3.8    22.4    -      -       -      +
   1548C  ASP      3.2    15.4    +      -       -      +
   1549C  PHE*     3.9     2.2    -      -       -      +
   1551C  THR*     1.3    72.3    -      -       -      +
   1553C  SER*     1.3    60.9    +      -       -      +
   1555C  TRP      3.4     0.5    +      -       -      -
   1556C  LEU*     2.9    28.6    +      -       -      +
   1607C  ILE*     3.6    32.9    -      -       +      +
   1610C  GLN*     3.8    18.4    -      -       +      +
   1611C  LEU*     3.7    28.5    -      -       +      +
   1614C  VAL*     4.4     5.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER1553 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1549C  PHE*     2.9    23.1    +      -       -      -
   1550C  GLU      3.9     1.1    -      -       -      -
   1552C  VAL*     1.3    78.9    -      -       -      +
   1554C  PHE*     1.3    60.2    +      -       -      +
   1556C  LEU*     3.4     0.8    +      -       -      -
   1557C  SER*     2.8    29.8    +      -       -      -
   1611C  LEU*     3.7    13.2    -      -       -      +
   1672C  VAL*     3.9     7.6    -      -       -      +
   1673C  MET*     3.8    11.6    -      -       -      -
   1676C  HIS*     2.9    19.7    +      -       -      -
   1678C  MET*     3.3    23.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE1554 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1493C  LEU*     3.6    32.5    -      -       +      -
   1495C  PRO*     3.8    34.1    -      -       +      -
   1500C  VAL*     4.4    18.8    -      -       +      -
   1505C  GLY      6.0     1.6    -      -       -      -
   1507C  PRO*     3.9    11.4    -      -       +      -
   1550C  GLU      3.0    19.4    +      -       -      +
   1551C  THR      3.7     4.3    -      -       -      +
   1552C  VAL      3.3     0.2    -      -       -      -
   1553C  SER*     1.3    77.5    -      -       -      +
   1555C  TRP*     1.3    84.4    +      +       -      +
   1557C  SER*     3.5     1.9    +      -       -      -
   1558C  ASN*     2.9    58.6    +      -       -      -
   1676C  HIS*     3.2    33.4    +      +       +      -
----------------------------------------------------------
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Residues in contact with TRP1555 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1489C  LEU      3.4    19.3    -      -       -      -
   1490C  ILE*     3.6    45.3    +      -       +      -
   1493C  LEU*     3.9    12.4    +      -       +      -
   1495C  PRO*     5.4     2.6    -      -       +      +
   1507C  PRO*     4.2    10.1    -      -       +      -
   1511C  LEU*     5.3     4.5    -      -       +      -
   1538C  ILE*     4.2    34.1    -      -       +      -
   1541C  VAL*     3.7    28.5    -      -       +      +
   1542C  LEU*     4.3    12.6    -      -       +      -
   1545C  ARG*     4.9     2.8    -      -       -      +
   1551C  THR*     3.2    28.6    +      -       +      +
   1552C  VAL      4.3     2.0    -      -       -      +
   1554C  PHE*     1.3    97.5    -      +       -      +
   1556C  LEU*     1.3    60.1    +      -       -      +
   1558C  ASN*     3.8    24.2    -      -       +      +
   1559C  THR*     2.6    36.3    +      -       -      -
   1607C  ILE*     3.9     3.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1556 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1552C  VAL*     2.9    19.4    +      -       +      +
   1553C  SER      3.8     5.2    -      -       -      +
   1555C  TRP*     1.3    77.7    -      -       -      +
   1557C  SER*     1.3    62.9    +      -       -      +
   1559C  THR*     3.5     1.1    +      -       -      -
   1560C  CYS*     3.1    43.7    +      -       -      -
   1604C  ALA*     3.6    27.4    -      -       -      +
   1607C  ILE*     3.6    18.1    -      -       +      +
   1608C  TYR*     4.0    23.6    -      -       +      +
   1611C  LEU*     4.0    19.3    -      -       +      -
   1678C  MET*     3.9    24.0    -      -       +      -
   1682C  LEU*     4.4    11.2    -      -       +      -
   1827C  PHE*     4.2     6.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER1557 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1505C  GLY*     5.8     1.8    -      -       -      -
   1553C  SER      2.8    20.6    +      -       -      -
   1554C  PHE      3.6     4.9    -      -       -      -
   1556C  LEU*     1.3    79.9    -      -       -      +
   1558C  ASN*     1.3    58.5    +      -       -      +
   1560C  CYS*     3.5     5.6    +      -       -      +
   1561C  ARG*     3.0    27.4    +      -       -      +
   1676C  HIS*     3.7    26.9    -      -       -      +
   1677C  GLY      4.6     1.9    -      -       -      +
   1678C  MET*     3.3    37.2    -      -       -      +
   1679C  ASP      5.7     0.7    -      -       -      +
   1682C  LEU*     6.1     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASN1558 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1505C  GLY*     3.2    30.2    -      -       -      +
   1507C  PRO*     3.2    19.0    -      -       -      +
   1508C  ALA*     3.3    15.8    +      -       +      +
   1554C  PHE*     2.9    56.6    +      -       -      +
   1555C  TRP*     3.8    20.6    -      -       +      -
   1557C  SER*     1.3    78.0    -      -       -      +
   1559C  THR*     1.3    61.2    +      -       -      +
   1560C  CYS      3.2     0.2    -      -       -      -
   1561C  ARG*     4.4     2.0    -      -       -      +
   1562C  PHE*     2.9    30.0    +      -       -      +
   1676C  HIS      5.4     1.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR1559 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1538C  ILE*     3.7    21.9    -      -       +      +
   1555C  TRP*     2.6    24.8    +      -       -      -
   1556C  LEU*     3.9     3.6    -      -       -      -
   1558C  ASN*     1.3    75.0    -      -       -      +
   1560C  CYS*     1.3    57.8    +      -       -      +
   1562C  PHE*     3.4     7.7    +      -       -      +
   1563C  LEU*     3.0    26.4    +      -       +      +
   1600C  LEU*     4.0    38.4    -      -       +      +
   1603C  LEU*     4.4     4.9    -      -       +      -
   1604C  ALA*     4.3    12.6    -      -       +      -
   1607C  ILE*     3.5    19.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with CYS1560 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1556C  LEU*     3.1    27.9    +      -       -      +
   1557C  SER*     3.6     6.1    -      -       -      +
   1559C  THR*     1.3    76.0    -      -       -      +
   1561C  ARG*     1.3    59.9    +      -       -      +
   1563C  LEU*     3.2     9.8    +      -       -      +
   1564C  HIS*     2.8    37.5    +      -       +      +
   1604C  ALA*     4.4     6.5    -      -       -      -
   1679C  ASP*     3.8    17.9    -      -       -      +
   1682C  LEU*     3.7    26.9    -      -       +      -
   1827C  PHE*     3.8    24.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG1561 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130A  HIS*     3.4    27.1    +      -       -      +
    131A  LEU*     3.6    10.7    -      -       -      +
   1504C  PRO      5.2     0.4    +      -       -      +
   1505C  GLY*     4.1     9.9    -      -       -      +
   1508C  ALA*     3.8    18.4    -      -       +      -
   1509C  TYR*     3.5    44.8    +      -       +      -
   1557C  SER      3.0    18.3    +      -       -      +
   1558C  ASN*     3.5     2.0    +      -       -      +
   1560C  CYS*     1.3    73.0    -      -       -      +
   1562C  PHE*     1.3    60.9    +      -       -      +
   1564C  HIS*     3.2    28.2    +      -       +      +
   1565C  CYS*     2.9    31.8    +      -       -      -
   1568C  GLN*     4.5     2.8    +      -       -      -
   1679C  ASP*     4.6     1.6    +      -       -      -
   1830C  ASN*     2.8    32.4    +      -       -      +
   1831C  PRO*     4.1     0.8    -      -       -      +
   1832C  SER*     3.8    13.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE1562 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1508C  ALA*     3.5    24.5    -      -       +      +
   1511C  LEU*     3.8    15.9    -      -       +      -
   1512C  PHE*     3.7    30.1    -      -       +      -
   1515C  VAL*     4.2     7.0    -      -       +      -
   1530C  LEU*     6.4     0.4    -      -       +      -
   1531C  LEU*     3.9    25.4    -      -       +      -
   1534C  THR*     4.2    24.0    -      -       +      -
   1535C  ILE*     6.2     0.4    -      -       +      -
   1558C  ASN      2.9    20.0    +      -       -      +
   1559C  THR*     3.5     7.0    -      -       -      +
   1561C  ARG*     1.3    77.9    -      -       -      +
   1563C  LEU*     1.3    55.7    +      -       -      +
   1565C  CYS*     3.3     5.7    +      -       -      +
   1566C  LEU*     3.1    40.7    +      -       +      +
   1600C  LEU*     3.6    39.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU1563 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1559C  THR      3.0    13.9    +      -       -      +
   1560C  CYS*     3.2    12.3    +      -       -      +
   1562C  PHE*     1.3    74.4    -      -       -      +
   1564C  HIS*     1.3    69.6    +      -       +      +
   1566C  LEU*     3.3     6.1    +      -       +      +
   1567C  LYS*     3.0    52.9    +      -       -      +
   1597C  ARG*     3.7    41.3    -      -       +      +
   1600C  LEU*     4.4    11.0    -      -       +      +
   1601C  SER*     4.1    31.2    -      -       -      +
   1604C  ALA*     5.6     4.7    -      -       +      -
   1827C  PHE*     6.4     2.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS1564 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1560C  CYS*     2.8    29.3    +      -       +      -
   1561C  ARG*     3.2    52.7    +      -       +      +
   1563C  LEU*     1.3    76.9    -      -       +      +
   1565C  CYS*     1.3    52.2    +      -       -      +
   1567C  LYS*     3.4     3.6    +      -       -      +
   1568C  GLN*     2.8    38.4    +      -       -      +
   1679C  ASP*     2.9    30.5    +      -       -      -
   1828C  PRO      3.1    28.5    -      -       -      -
   1829C  PHE*     3.6    17.5    -      -       +      -
   1830C  ASN      3.4    23.0    +      -       -      +
   1831C  PRO*     5.2     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS1565 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1508C  ALA      4.7     1.6    -      -       -      -
   1509C  TYR*     3.6    41.3    -      -       -      -
   1512C  PHE*     3.7    33.8    -      -       +      -
   1561C  ARG*     2.9    24.1    +      -       -      +
   1562C  PHE*     3.5     9.2    -      -       -      +
   1564C  HIS*     1.3    74.5    -      -       -      +
   1566C  LEU*     1.3    59.6    +      -       -      +
   1568C  GLN*     4.4     3.1    -      -       -      -
   1569C  TYR*     2.9    46.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU1566 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1512C  PHE*     3.7    28.5    -      -       +      -
   1515C  VAL*     4.6     4.5    -      -       +      -
   1531C  LEU*     5.0     4.7    -      -       +      -
   1562C  PHE*     3.1    36.9    +      -       +      +
   1563C  LEU*     3.8     6.5    -      -       -      +
   1565C  CYS*     1.3    75.0    -      -       -      +
   1567C  LYS*     1.3    58.1    +      -       -      +
   1569C  TYR      4.0     0.3    -      -       -      -
   1570C  SER*     3.1    26.3    +      -       -      -
   1588C  LEU*     4.7     3.9    -      -       +      +
   1593C  LEU*     3.8    29.9    -      -       +      +
   1596C  TYR*     5.6     1.6    -      -       +      -
   1597C  ARG*     3.9    28.5    +      -       +      +
   1600C  LEU*     3.5    32.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS1567 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1563C  LEU*     3.0    48.3    +      -       +      +
   1564C  HIS*     4.9     2.2    +      -       -      +
   1566C  LEU*     1.3    76.0    -      -       -      +
   1568C  GLN*     1.3    64.9    +      -       -      +
   1569C  TYR      3.1     1.8    -      -       -      -
   1570C  SER*     2.8    26.3    +      -       -      -
   1571C  GLY      4.7     0.2    +      -       -      -
   1575C  PHE*     3.1    43.9    -      -       +      +
   1597C  ARG*     3.9    17.0    -      -       -      +
   1827C  PHE*     5.9     0.8    +      -       -      +
   1828C  PRO      5.1     4.2    +      -       -      -
   1829C  PHE*     3.6    39.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN1568 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1509C  TYR*     5.9     0.5    -      -       -      -
   1561C  ARG*     4.5     4.0    +      -       -      -
   1564C  HIS      2.8    22.6    +      -       -      +
   1565C  CYS*     4.0     3.9    -      -       -      +
   1567C  LYS*     1.3    72.4    -      -       -      +
   1569C  TYR*     1.3    77.7    -      -       +      +
   1575C  PHE      3.9    10.5    -      -       -      -
   1576C  MET*     3.8     9.2    -      -       -      +
   1578C  HIS      5.2     1.4    +      -       -      -
   1579C  ASN*     2.9    52.2    +      -       -      +
   1583C  GLN*     3.4    13.9    +      -       -      +
   1587C  CYS*     4.1     0.2    -      -       -      -
   1829C  PHE*     4.0     7.6    -      -       +      -
   1831C  PRO*     3.4    16.0    -      -       +      +
   1832C  SER*     2.9    46.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR1569 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1509C  TYR*     5.6     2.9    -      +       -      -
   1512C  PHE*     3.3    31.6    -      +       +      -
   1565C  CYS*     2.9    31.2    +      -       -      -
   1566C  LEU      4.0     3.1    -      -       -      -
   1568C  GLN*     1.3   102.9    +      -       +      +
   1570C  SER*     1.3    58.9    +      -       -      +
   1571C  GLY      3.3     2.0    -      -       -      -
   1583C  GLN*     3.2    61.8    +      -       +      +
   1586C  HIS*     3.8    26.6    +      -       +      +
   1587C  CYS*     3.7     6.1    -      -       -      -
   1588C  LEU*     2.9    30.9    +      -       -      +
   1832C  SER*     5.5     0.5    +      -       -      -
   1834C  LEU      3.4    13.0    +      -       -      -
   1836C  LEU*     4.0    22.2    +      -       +      +
----------------------------------------------------------
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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