Contacts of the strand formed by residues 423 - 445 (chain D) in PDB entry 2C11


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with LYS 423 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    414D  HIS*     3.4     2.9    -      -       -      +
    415D  PHE*     3.0    60.4    +      -       +      +
    419D  SER*     3.5    25.8    +      -       -      +
    421D  ALA*     3.7    10.7    +      -       -      +
    422D  PRO*     1.3    77.8    -      -       -      +
    424D  THR*     1.3    67.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 424 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65D  ARG*     5.3     4.5    -      -       -      +
    412D  ASP*     3.6    24.7    -      -       +      -
    413D  TRP      3.6     6.3    -      -       -      +
    414D  HIS*     2.7    40.9    +      -       +      +
    415D  PHE*     4.2     2.9    -      -       -      -
    423D  LYS*     1.3    78.7    +      -       -      +
    425D  ILE*     1.3    68.7    +      -       -      +
    426D  ARG*     3.8     9.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 425 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    392D  GLY      4.1     2.2    -      -       -      +
    393D  LYS      4.2     6.5    -      -       -      +
    395D  THR*     3.1    37.5    -      -       +      +
    397D  PRO*     3.9    20.4    -      -       +      -
    412D  ASP*     3.3     2.9    -      -       -      +
    413D  TRP*     2.9    65.0    +      -       +      +
    415D  PHE*     3.6    19.5    -      -       +      -
    424D  THR*     1.3    72.8    -      -       -      +
    426D  ARG*     1.3    73.3    +      -       -      +
    428D  ALA*     4.0    11.8    +      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 426 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    728C  ASP*     5.4    11.1    +      -       -      +
    397D  PRO*     2.9    33.1    -      -       +      +
    412D  ASP*     3.0    16.6    -      -       -      +
    424D  THR*     3.8    10.1    +      -       +      +
    425D  ILE*     1.3    73.0    -      -       -      +
    427D  ASP*     1.3    78.3    +      -       -      +
    428D  ALA      3.4     0.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 427 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    397D  PRO*     4.8     0.7    -      -       +      -
    398D  LEU*     2.8    43.8    +      -       -      +
    400D  ARG*     2.7    39.5    +      -       -      +
    410D  TYR*     3.4    22.9    -      -       +      +
    411D  VAL      3.1    16.5    +      -       -      -
    412D  ASP*     3.3     5.6    +      -       -      +
    426D  ARG*     1.3    89.9    -      -       -      +
    428D  ALA*     1.3    63.4    +      -       -      +
    429D  PHE      3.3     7.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 428 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    341D  LEU*     4.9     0.9    -      -       +      -
    395D  THR*     3.7    25.0    -      -       +      +
    396D  THR      4.7     1.1    -      -       -      -
    398D  LEU*     3.5     6.2    -      -       -      +
    411D  VAL      2.9     5.4    +      -       -      +
    413D  TRP*     3.5    32.8    -      -       +      -
    425D  ILE*     4.1    11.0    -      -       +      +
    426D  ARG      3.3     2.0    -      -       -      -
    427D  ASP*     1.3    78.0    -      -       -      +
    429D  PHE*     1.3    70.4    +      -       +      +
    464D  SER*     3.5    23.9    +      -       -      -
    465D  MET      4.0     2.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 429 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62D  ASP*     5.5     0.2    -      -       -      -
    339D  PHE*     4.0    33.0    -      +       +      -
    340D  GLY*     3.5    31.2    -      -       -      -
    341D  LEU*     3.7    34.5    -      -       +      -
    347D  PRO*     5.5     1.3    -      -       +      -
    398D  LEU*     3.7     3.5    -      -       -      +
    410D  TYR*     3.5     4.0    -      -       -      +
    411D  VAL*     2.9    41.4    +      -       +      +
    412D  ASP      3.9    15.7    -      -       -      -
    413D  TRP*     4.0     9.9    -      +       -      -
    427D  ASP      4.0     3.8    -      -       -      -
    428D  ALA*     1.3    86.4    -      -       +      +
    430D  CYS*     1.3    63.9    +      -       -      +
    431D  VAL*     5.4     0.7    -      -       +      -
    462D  VAL*     5.0    10.8    -      -       +      -
    463D  ARG      3.1     9.2    -      -       -      +
    464D  SER*     4.0    15.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with CYS 430 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    398D  LEU*     3.7     3.3    -      -       +      +
    404D  CYS*     2.0    53.6    -      -       +      -
    408D  ALA*     4.5     1.1    -      -       +      -
    409D  THR      3.0    13.7    -      -       -      +
    410D  TYR*     3.9     9.4    -      -       +      -
    411D  VAL*     4.9     0.4    -      -       -      +
    429D  PHE*     1.3    77.2    -      -       -      +
    431D  VAL*     1.3    62.6    +      -       -      +
    432D  PHE*     3.6    18.2    -      -       -      -
    461D  VAL      3.7     1.0    -      -       -      +
    462D  VAL*     3.4     2.3    -      -       -      -
    463D  ARG*     2.8    38.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 431 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    323D  PHE*     3.3    28.0    -      -       +      -
    325D  VAL*     4.0    13.5    -      -       +      -
    330D  VAL*     4.0    30.1    -      -       +      -
    339D  PHE*     4.3    10.5    -      -       +      -
    409D  THR*     2.9    28.8    +      -       -      +
    411D  VAL*     5.5     2.7    -      -       +      +
    429D  PHE*     5.4     1.6    -      -       +      -
    430D  CYS*     1.3    80.3    -      -       -      +
    432D  PHE*     1.3    65.9    +      -       -      +
    460D  LEU*     4.2     9.0    -      -       +      -
    461D  VAL      3.2     9.6    -      -       -      +
    462D  VAL*     3.7    27.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 432 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    437C  GLY      3.9     1.8    -      -       -      -
    317D  TYR*     3.4    15.5    -      -       -      +
    323D  PHE*     3.6     8.5    -      -       -      -
    405D  PRO*     3.8    29.6    -      -       +      -
    408D  ALA*     3.5    19.5    -      -       +      -
    430D  CYS*     3.6    28.5    -      -       -      -
    431D  VAL*     1.3    81.2    -      -       -      +
    433D  GLU*     1.3    72.1    +      -       -      +
    434D  GLN*     3.7    26.0    -      -       +      -
    460D  LEU*     3.5     5.1    -      -       -      +
    461D  VAL*     2.8    67.0    +      -       +      -
    463D  ARG*     3.8    17.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 433 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    313C  PRO*     4.0     7.2    -      -       +      +
    315D  GLN*     4.1     6.1    -      -       -      +
    317D  TYR*     3.0    32.0    +      -       +      -
    322D  ARG*     3.0    64.1    +      -       -      +
    323D  PHE*     4.0    16.4    -      -       +      -
    405D  PRO*     5.8     0.7    -      -       -      +
    432D  PHE*     1.3    80.4    -      -       -      +
    434D  GLN*     1.3    62.1    +      -       -      +
    435D  ASN      4.2     0.2    -      -       -      -
    458D  THR*     3.5    14.9    -      -       +      +
    459D  VAL      3.1    11.0    -      -       -      +
    460D  LEU*     4.1     8.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 434 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    434C  GLN*     3.8     0.6    -      -       -      +
    435C  ASN      3.2    25.3    +      -       -      -
    436C  GLN*     3.7    19.0    +      -       -      +
    437C  GLY*     3.9     2.2    -      -       -      +
    315D  GLN*     3.5    22.0    -      -       -      +
    405D  PRO*     3.5    26.5    -      -       -      +
    432D  PHE*     3.7    16.1    +      -       +      -
    433D  GLU*     1.3    76.4    -      -       -      +
    435D  ASN*     1.3    79.1    +      -       -      +
    436D  GLN*     3.3    17.8    +      -       -      +
    458D  THR*     4.2     2.5    -      -       -      -
    459D  VAL*     2.9    47.4    +      -       +      +
    461D  VAL*     4.9     2.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 435 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    312C  PRO*     4.5     6.5    -      -       -      +
    313C  PRO*     2.7    33.6    +      -       +      +
    314C  LEU*     4.5     5.4    -      -       -      +
    434C  GLN*     3.2    18.7    +      -       -      -
    315D  GLN*     3.5    21.2    +      -       -      +
    434D  GLN*     1.3    79.1    +      -       -      +
    436D  GLN*     1.3    65.4    +      -       -      +
    437D  GLY*     3.4    13.2    +      -       -      -
    456D  ALA*     4.7    14.8    +      -       -      +
    457D  GLU      3.7     7.9    -      -       -      +
    458D  THR*     3.4    19.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 436 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    432C  PHE*     5.6     0.5    -      -       -      -
    434C  GLN*     3.9    16.9    -      -       -      +
    436C  GLN*     5.2     1.7    -      -       -      +
    463C  ARG*     5.6     0.7    +      -       -      -
    434D  GLN*     3.9    17.5    -      -       -      +
    435D  ASN*     1.3    72.4    -      -       -      +
    437D  GLY*     1.3    56.0    +      -       -      +
    438D  LEU*     3.0    24.1    +      -       +      +
    457D  GLU*     3.1    35.8    +      -       +      +
    459D  VAL*     3.0    35.7    -      -       +      +
    478D  VAL*     4.7     2.6    -      -       -      +
    480D  HIS*     4.3     8.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 437 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    402C  VAL      4.0     4.1    -      -       -      +
    403C  ASP      3.8     0.9    -      -       -      +
    404C  CYS*     3.8    14.9    -      -       -      -
    405C  PRO*     4.0    14.9    -      -       -      +
    432C  PHE*     4.9     2.9    -      -       -      -
    434C  GLN*     4.0    14.8    -      -       -      -
    463C  ARG*     2.9    27.3    +      -       -      -
    435D  ASN*     3.4    14.7    +      -       -      -
    436D  GLN*     1.3    75.9    -      -       -      +
    438D  LEU*     1.3    54.5    +      -       -      +
    456D  ALA*     5.8     1.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 438 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    402C  VAL      4.4     1.3    -      -       -      -
    463C  ARG*     3.3    25.8    -      -       -      +
    474C  VAL*     4.1     9.6    -      -       +      -
    476C  ASP*     3.8    11.9    -      -       -      +
    490C  TYR*     3.5    44.2    -      -       +      +
    696C  THR*     3.8    13.0    -      -       +      +
    436D  GLN*     3.0    15.0    +      -       +      +
    437D  GLY*     1.3    79.1    +      -       -      +
    439D  PRO*     1.3    79.8    -      -       +      +
    456D  ALA*     4.0     1.1    -      -       -      -
    457D  GLU*     3.1    32.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 439 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    402C  VAL*     3.7    25.1    -      -       +      +
    403C  ASP      3.9    10.8    -      -       -      +
    463C  ARG*     4.1     0.4    -      -       -      +
    465C  MET*     3.6    24.5    -      -       +      -
    474C  VAL*     4.8     2.9    -      -       +      -
    696C  THR*     2.9    36.5    +      -       +      +
    438D  LEU*     1.3   100.0    -      -       +      +
    440D  LEU*     1.3    60.3    +      -       -      +
    441D  ARG      4.2    11.0    -      -       -      +
    442D  ARG*     4.3    10.3    -      -       +      -
    455D  LEU      3.6     9.0    -      -       -      +
    456D  ALA*     3.8     4.9    -      -       -      -
    457D  GLU*     3.9     1.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 440 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    695C  VAL*     2.9    27.8    -      -       +      +
    696C  THR*     2.9    31.2    +      -       -      +
    697C  VAL*     3.5    31.9    -      -       +      -
    439D  PRO*     1.3    71.9    -      -       -      +
    441D  ARG*     1.3    57.7    +      -       +      +
    455D  LEU*     2.5    30.9    +      -       +      +
    457D  GLU*     3.4    18.1    -      -       +      +
    481D  PRO*     3.4    31.0    -      -       +      -
    482D  SER*     4.1     6.3    -      -       -      +
    716D  SER*     3.6    31.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 441 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    302C  LEU*     4.1    19.7    +      -       -      +
    492C  THR*     3.6     7.4    -      -       -      +
    692C  PRO*     4.8     5.3    -      -       -      +
    693C  ASN*     3.6    37.0    -      -       +      -
    694C  THR      4.4     0.4    -      -       -      +
    695C  VAL*     4.3    10.8    -      -       +      -
    696C  THR*     6.0     0.2    -      -       -      -
    439D  PRO*     4.2     2.4    -      -       -      +
    440D  LEU*     1.3    80.0    -      -       +      +
    442D  ARG*     1.3    65.5    +      -       -      +
    453D  GLY      4.5     0.7    -      -       -      -
    454D  GLY*     3.2    17.6    +      -       -      +
    455D  LEU*     3.0    38.5    +      -       +      +
    714D  ASP*     3.7     5.0    +      -       -      +
    716D  SER*     2.7    46.8    +      -       -      +
    717D  PHE*     3.7    11.5    +      -       -      +
    722D  SER*     2.5    39.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 442 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    396C  THR*     2.9    25.9    +      -       -      -
    397C  PRO      2.9    29.9    +      -       -      -
    398C  LEU*     4.5     0.2    -      -       -      +
    402C  VAL*     4.8     0.9    -      -       +      -
    403C  ASP*     3.0    36.6    +      -       -      +
    465C  MET*     3.1    29.6    -      -       +      +
    467C  THR*     3.3     2.4    +      -       -      -
    472C  ASP*     2.7    51.9    +      -       -      +
    492C  THR*     3.1    27.8    +      -       +      +
    493C  GLY      3.2     3.1    +      -       -      -
    693C  ASN*     3.6     4.8    +      -       -      -
    439D  PRO*     4.3    13.5    -      -       +      -
    441D  ARG*     1.3    79.5    -      -       -      +
    443D  HIS*     1.3    56.0    +      -       -      +
    444D  HIS*     3.4    17.8    +      -       -      +
    452D  PHE*     3.5    13.1    -      -       +      -
    453D  GLY      3.7     6.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with HIS 443 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    239C  PHE*     4.2     6.1    -      -       -      -
    302C  LEU*     5.2     2.2    -      -       +      -
    467C  THR*     3.5    13.0    -      -       +      -
    469C  LEU      3.4    17.8    +      -       -      -
    470C  ASN*     3.3    20.3    +      -       -      -
    472C  ASP*     3.0    25.6    +      -       -      +
    493C  GLY*     3.8     2.5    -      -       -      -
    494C  TYR*     3.5    31.2    -      +       +      -
    693C  ASN*     3.7    13.0    -      -       -      +
    442D  ARG*     1.3    78.6    -      -       -      +
    444D  HIS*     1.3    62.1    +      -       -      +
    445D  SER*     3.9    11.4    +      -       -      -
    451D  TYR*     3.8    26.7    +      +       -      +
    452D  PHE*     3.2    19.1    -      -       -      -
    453D  GLY      3.2    19.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 444 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    396C  THR*     3.3    44.3    -      -       -      +
    397C  PRO*     3.3    35.8    +      -       +      +
    399C  THR*     4.4     5.1    +      -       -      -
    467C  THR*     3.4    21.5    -      -       -      +
    472C  ASP*     3.2     7.3    +      -       -      -
    442D  ARG*     3.4     9.3    -      -       -      +
    443D  HIS*     1.3    71.9    -      -       -      +
    445D  SER*     1.3    61.6    +      -       -      +
    446D  ASP*     3.5    18.6    +      -       -      -
    451D  TYR      4.1     1.6    -      -       -      -
    452D  PHE*     3.6    23.3    -      +       +      +
    725D  PHE*     5.3     3.1    -      +       -      -
    727D  GLY      3.9    15.0    +      -       -      -
    728D  ASP*     5.7     1.1    -      -       -      -
   1749D   CU      3.0    18.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 445 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    239C  PHE*     6.0     1.2    -      -       -      -
    443D  HIS*     3.9    10.0    +      -       -      -
    444D  HIS*     1.3    73.6    -      -       -      +
    446D  ASP*     1.3    67.5    +      -       -      +
    447D  LEU*     3.4    15.1    +      -       -      +
    449D  SER      3.0    12.1    +      -       -      -
    450D  HIS*     3.0    21.5    -      -       -      +
    451D  TYR*     2.9    57.9    +      -       -      +
    727D  GLY*     5.9     0.2    -      -       -      -
----------------------------------------------------------
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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