Contacts of the helix formed by residues 604 - 629 (chain B) in PDB entry 5J3V


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 TYR 604 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    562B  ILE*     3.9    19.5    +      -       +      +
    563B  GLN*     5.0     5.4    -      -       -      +
    566B  MET*     3.6    52.7    -      -       +      +
    567B  PRO*     5.2     3.3    -      -       +      +
    570B  ILE*     4.4    23.6    -      -       +      -
    600B  GLY      4.2     9.6    -      -       -      -
    601B  PHE*     2.8    21.5    +      -       +      +
    603B  PRO*     1.3    96.1    -      -       +      +
    605B  CYS*     1.3    60.8    +      -       -      +
    606B  GLU      3.6     1.6    -      -       -      -
    607B  PRO*     3.9     9.0    -      -       -      +
    608B  VAL*     3.2    27.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 605 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    601B  PHE*     3.0    21.0    +      -       +      +
    602B  LEU*     3.2    31.5    +      -       -      -
    603B  PRO      3.6     0.2    -      -       -      -
    604B  TYR*     1.3    77.7    -      -       -      +
    606B  GLU*     1.3    72.4    +      -       -      +
    608B  VAL*     3.3     2.1    +      -       -      +
    609B  TYR*     2.7    38.7    +      -       -      +
    651B  LEU*     4.2     2.9    -      -       +      +
    655B  LEU*     3.6    28.0    -      -       +      -
    658B  ASN      6.0     1.1    -      -       -      -
    662B  LEU*     4.1    15.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 606 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    602B  LEU      4.6     0.8    +      -       -      +
    605B  CYS*     1.3    87.9    -      -       -      +
    607B  PRO*     1.3    69.8    -      -       +      +
    609B  TYR*     3.8     1.4    -      -       -      +
    610B  GLN*     3.1    25.1    +      -       +      +
    662B  LEU*     3.8    27.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with PRO 607 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    573B  TRP*     4.2     9.1    +      -       -      +
    603B  PRO      4.9     4.7    -      -       -      +
    604B  TYR*     3.9    15.9    -      -       -      +
    605B  CYS      3.7     1.1    -      -       -      -
    606B  GLU*     1.3    96.4    -      -       +      +
    608B  VAL*     1.3    63.5    +      -       +      +
    610B  GLN*     3.5     4.6    +      -       +      +
    611B  ARG*     3.3    23.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 608 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    570B  ILE*     5.1     9.6    -      -       +      -
    573B  TRP*     3.6    31.6    -      -       +      +
    590B  LEU*     4.8     4.3    -      -       +      -
    601B  PHE*     3.9    19.7    -      -       +      -
    604B  TYR      3.2    21.3    -      -       -      +
    605B  CYS      3.3     3.7    +      -       -      +
    606B  GLU      3.3     0.4    -      -       -      -
    607B  PRO*     1.3    79.8    -      -       +      +
    609B  TYR*     1.3    63.5    +      -       -      +
    611B  ARG      3.5     0.2    +      -       -      -
    612B  CYS*     3.2    23.4    +      -       -      -
    647B  LEU*     3.7    34.8    -      -       +      -
    651B  LEU*     4.1    12.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 609 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    605B  CYS      2.7    21.3    +      -       -      +
    606B  GLU      3.8     3.4    -      -       -      +
    608B  VAL*     1.3    75.0    -      -       -      +
    610B  GLN*     1.3    73.7    +      -       +      +
    612B  CYS*     3.3     4.9    +      -       -      +
    613B  VAL*     3.3    28.2    +      -       +      +
    648B  LEU*     3.6    17.5    -      -       +      -
    651B  LEU*     4.0    16.2    -      -       +      -
    659B  ILE*     4.4    15.5    -      -       +      -
    662B  LEU*     3.0    60.1    +      -       +      -
    663B  VAL*     3.3     7.0    -      -       +      -
    666B  SER*     2.3    38.6    +      -       -      -
    668B  ILE*     3.1    30.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 610 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    606B  GLU*     3.1    17.7    +      -       +      +
    607B  PRO*     4.0     5.2    -      -       +      +
    609B  TYR*     1.3    91.3    -      -       +      +
    611B  ARG*     1.3    62.6    +      -       -      +
    613B  VAL*     3.4     9.5    +      -       -      +
    614B  ASN*     3.1    57.9    +      -       -      +
    666B  SER*     5.3     6.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 611 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    573B  TRP*     2.8    75.0    +      -       +      +
    576B  LEU      2.8    23.0    +      -       -      -
    577B  LYS*     3.3    14.1    +      -       -      +
    578B  ASP*     2.9    36.1    +      -       -      +
    583B  LEU*     3.6    21.5    -      -       -      +
    587B  LEU*     6.1     0.7    -      -       -      -
    607B  PRO      3.3     7.7    +      -       -      +
    609B  TYR      3.3     0.2    -      -       -      -
    610B  GLN*     1.3    79.5    -      -       -      +
    612B  CYS*     1.3    57.9    +      -       -      +
    614B  ASN*     3.3    10.8    +      -       +      +
    615B  LEU*     2.9    35.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with CYS 612 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    573B  TRP*     4.6     2.0    -      -       -      -
    587B  LEU*     4.6     6.7    -      -       -      -
    608B  VAL*     3.2    18.5    +      -       -      -
    609B  TYR      3.6     7.9    -      -       -      +
    610B  GLN      3.2     0.8    -      -       -      -
    611B  ARG*     1.3    76.5    -      -       -      +
    613B  VAL*     1.3    65.0    +      -       -      +
    615B  LEU*     3.2     5.3    +      -       -      +
    616B  VAL*     3.1    29.3    +      -       -      +
    644B  ALA*     3.6    17.6    -      -       -      +
    647B  LEU*     3.5    42.8    -      -       -      -
    648B  LEU*     3.7    22.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 613 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    609B  TYR*     3.3    32.5    +      -       +      +
    610B  GLN*     3.7    11.7    -      -       -      +
    611B  ARG      3.4     0.2    -      -       -      -
    612B  CYS*     1.3    75.8    -      -       -      +
    614B  ASN*     1.3    60.5    +      -       -      +
    616B  VAL*     3.4     5.5    +      -       -      +
    617B  GLN*     3.0    30.4    +      -       -      +
    648B  LEU*     4.2     6.7    -      -       +      -
    666B  SER*     4.7     6.1    -      -       -      +
    667B  ASN*     4.1    14.4    -      -       -      +
    668B  ILE*     3.9    32.5    -      -       +      -
    671B  LEU*     3.6    22.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 614 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    578B  ASP*     5.0     7.2    -      -       -      +
    610B  GLN*     3.1    43.2    +      -       -      +
    611B  ARG*     3.6    11.2    -      -       +      +
    613B  VAL*     1.3    78.0    -      -       -      +
    615B  LEU*     1.3    59.8    +      -       -      +
    617B  GLN*     3.7    11.0    +      -       -      +
    618B  LYS*     2.9    44.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 615 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    573B  TRP*     6.2     0.2    -      -       +      -
    578B  ASP*     3.6    46.9    -      -       +      +
    583B  LEU*     4.5    12.1    -      -       +      -
    587B  LEU*     4.1    20.4    -      -       +      -
    611B  ARG*     2.9    26.8    +      -       +      +
    612B  CYS*     3.2     9.4    +      -       -      +
    614B  ASN*     1.3    76.2    -      -       -      +
    616B  VAL*     1.3    59.9    +      -       -      +
    618B  LYS*     4.2     6.6    -      -       -      +
    619B  THR*     2.7    34.6    +      -       -      -
    640B  PHE*     4.4    20.9    -      -       +      +
    644B  ALA*     3.9    20.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 616 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    612B  CYS      3.1    16.6    +      -       -      +
    613B  VAL*     3.7     7.9    -      -       -      +
    615B  LEU*     1.3    76.2    -      -       -      +
    617B  GLN*     1.3    63.4    +      -       -      +
    619B  THR*     3.8     1.4    -      -       -      -
    620B  LEU*     3.1    31.0    +      -       +      +
    641B  MET*     4.2    13.0    -      -       +      +
    644B  ALA*     3.9    15.9    -      -       +      -
    645B  LEU*     3.7    27.8    -      -       +      +
    648B  LEU*     4.8     3.1    -      -       +      -
    668B  ILE*     6.4     0.7    -      -       +      -
    671B  LEU*     4.2    14.1    -      -       +      -
    675B  CYS*     3.7    30.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 617 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    613B  VAL*     3.0    19.7    +      -       -      +
    614B  ASN*     3.7    12.7    +      -       -      +
    615B  LEU      3.3     0.2    -      -       -      -
    616B  VAL*     1.3    78.1    -      -       -      +
    618B  LYS*     1.3    59.0    +      -       +      +
    620B  LEU*     3.5     3.2    +      -       -      +
    621B  ALA*     3.0    29.8    +      -       +      +
    667B  ASN*     3.9    17.7    +      -       -      +
    671B  LEU*     3.8    32.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 618 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    578B  ASP*     3.3    41.4    +      -       -      +
    579B  GLU*     5.5     4.8    -      -       -      +
    614B  ASN*     2.9    27.1    +      -       +      +
    615B  LEU*     4.2     6.3    -      -       -      +
    617B  GLN*     1.3    75.2    -      -       +      +
    619B  THR*     1.3    60.1    +      -       -      +
    621B  ALA*     3.7     5.8    -      -       -      +
    622B  GLN*     2.8    33.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 619 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    615B  LEU*     2.7    23.6    +      -       -      +
    616B  VAL      3.8     3.4    -      -       -      -
    618B  LYS*     1.3    78.5    -      -       -      +
    620B  LEU*     1.3    61.7    +      -       -      +
    622B  GLN*     3.5     0.6    +      -       -      -
    623B  ALA*     3.1    22.6    +      -       +      +
    636B  PRO*     3.6    25.1    -      -       +      +
    637B  ASP      4.2    11.2    +      -       -      +
    638B  LYS*     4.2     4.3    -      -       +      -
    640B  PHE*     3.9    17.5    -      -       -      +
    641B  MET*     3.7    36.1    +      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 620 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    616B  VAL*     3.1    23.5    +      -       +      +
    617B  GLN      3.8     4.0    -      -       -      +
    619B  THR*     1.3    75.8    -      -       -      +
    621B  ALA*     1.3    62.6    +      -       -      +
    623B  ALA*     3.2     9.9    +      -       +      +
    624B  MET*     3.1    28.9    +      -       +      +
    641B  MET*     3.6    24.5    -      -       +      -
    671B  LEU*     3.8    40.4    -      -       +      +
    674B  GLN*     3.8    35.4    -      -       +      +
    675B  CYS*     4.0    10.8    -      -       -      -
    678B  ASP*     4.7     8.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 621 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    617B  GLN*     3.0    19.8    +      -       +      +
    618B  LYS*     3.7     7.6    -      -       -      +
    620B  LEU*     1.3    76.5    -      -       -      +
    622B  GLN*     1.3    62.9    +      -       -      +
    624B  MET*     3.2    16.5    +      -       -      +
    625B  LEU*     3.1    29.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 622 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    618B  LYS      2.8    17.7    +      -       -      +
    619B  THR*     4.6     0.2    -      -       -      -
    621B  ALA*     1.3    76.5    -      -       -      +
    623B  ALA*     1.3    61.8    +      -       -      +
    625B  LEU*     3.5    16.1    +      -       -      +
    626B  ASN*     3.2    20.4    +      -       -      +
    633B  TYR*     3.9    13.4    -      -       -      +
    634B  GLU*     2.6    42.0    +      -       -      +
    635B  ALA      4.8     0.2    -      -       -      -
    636B  PRO*     3.6    24.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 623 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    619B  THR*     3.1    14.5    +      -       +      +
    620B  LEU*     3.4    15.3    -      -       +      +
    621B  ALA      3.2     0.4    -      -       -      -
    622B  GLN*     1.3    77.6    -      -       -      +
    624B  MET*     1.3    57.4    +      -       +      +
    626B  ASN*     3.5     4.1    +      -       -      +
    627B  ASN*     3.0    27.0    +      -       -      +
    636B  PRO*     3.6    18.4    -      -       +      +
    638B  LYS*     4.9    14.4    -      -       -      -
    641B  MET*     6.4     0.9    -      -       +      -
    678B  ASP*     5.9     1.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with MET 624 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    620B  LEU*     3.1    16.8    +      -       -      +
    621B  ALA*     3.4    15.7    -      -       -      +
    623B  ALA*     1.3    75.4    -      -       +      +
    625B  LEU*     1.3    65.8    +      -       +      +
    627B  ASN*     3.1     8.6    +      -       -      +
    628B  ALA*     3.1    22.9    +      -       -      +
    674B  GLN*     4.9    12.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 625 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    621B  ALA*     3.1    14.9    +      -       +      +
    622B  GLN*     3.8    21.1    -      -       -      +
    623B  ALA      3.4     0.2    -      -       -      -
    624B  MET*     1.3    80.2    -      -       +      +
    626B  ASN*     1.3    57.1    +      -       -      +
    628B  ALA*     3.6     5.9    +      -       +      +
    629B  GLN      3.1    22.3    +      -       -      -
    633B  TYR*     3.3    58.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 626 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    622B  GLN      3.2    13.8    +      -       -      +
    623B  ALA*     3.6    10.8    -      -       -      +
    624B  MET      3.2     0.4    -      -       -      -
    625B  LEU*     1.3    73.0    -      -       -      +
    627B  ASN*     1.3    67.3    +      -       -      +
    628B  ALA      3.0     3.4    +      -       -      -
    629B  GLN      4.3     0.4    -      -       -      -
    630B  PRO*     3.1    38.4    +      -       -      +
    633B  TYR*     3.3    20.2    +      -       -      +
    634B  GLU*     4.2     3.8    -      -       -      +
    635B  ALA*     3.1    40.8    -      -       -      +
    636B  PRO*     4.7     0.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 627 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    623B  ALA      3.0    17.5    +      -       -      +
    624B  MET*     3.1     8.7    +      -       -      +
    626B  ASN*     1.3    78.6    +      -       -      +
    628B  ALA*     1.3    59.8    +      -       -      +
    630B  PRO*     4.8     4.2    -      -       -      +
    679B  LYS*     4.4    18.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 628 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    624B  MET      3.1    13.0    +      -       -      +
    625B  LEU*     3.9     7.9    -      -       +      +
    626B  ASN      3.0     0.8    -      -       -      -
    627B  ASN*     1.3    79.9    -      -       -      +
    629B  GLN*     1.3    69.1    +      -       +      +
    630B  PRO*     3.6     7.1    -      -       -      +
    633B  TYR*     6.0     0.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 629 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    625B  LEU      3.1     5.4    +      -       -      +
    626B  ASN      3.4     3.1    -      -       -      -
    628B  ALA*     1.3    89.2    -      -       +      +
    630B  PRO*     1.3    59.4    -      -       -      +
    631B  ASP*     3.0    11.3    +      -       +      +
    632B  GLN*     2.9    30.8    -      -       +      +
    633B  TYR*     3.0    45.4    +      -       +      +
----------------------------------------------------------
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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