Contacts of the helix formed by residues 4831 - 4856 (chain D) in PDB entry 6X34


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 ASN4831 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   4829D  THR      3.4     0.2    +      -       -      -
   4830D  HIS*     1.3    94.8    +      -       +      +
   4832D  GLY*     1.3    59.1    +      -       -      +
   4833D  LYS*     3.3     3.6    -      -       -      +
   4834D  GLN*     2.9    31.4    +      -       -      +
   4835D  LEU*     3.9     7.3    +      -       -      +
   4933D  LEU*     5.6    13.7    -      -       +      +
   4937D  ALA*     5.1     5.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY4832 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   4829D  THR*     3.0    19.6    +      -       -      -
   4830D  HIS      4.2     0.7    -      -       -      -
   4831D  ASN*     1.3    74.4    -      -       -      +
   4833D  LYS*     1.3    63.5    +      -       -      +
   4834D  GLN      3.2     2.5    -      -       -      -
   4835D  LEU*     3.1    25.8    +      -       -      +
   4836D  VAL*     3.3    15.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS4833 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   4831D  ASN*     3.3     1.2    -      -       -      -
   4832D  GLY*     1.3    76.4    -      -       -      +
   4834D  GLN*     1.3    66.3    +      -       -      +
   4836D  VAL*     3.3    22.0    -      -       -      +
   4837D  MET*     3.8     7.4    +      -       -      +
   4820F  THR*     4.7     4.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN4834 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   4831D  ASN*     2.9    34.3    -      -       -      +
   4832D  GLY      3.2     0.2    -      -       -      -
   4833D  LYS*     1.3    82.4    +      -       +      +
   4835D  LEU*     1.3    62.3    +      -       -      +
   4836D  VAL      3.4     0.2    -      -       -      -
   4837D  MET*     3.1     2.8    +      -       -      +
   4838D  THR*     3.0    26.9    +      -       +      +
   4933D  LEU*     4.9    22.7    -      -       +      +
   4820F  THR*     3.8    29.3    +      -       +      +
   4938F  PHE*     6.1     4.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU4835 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   4828D  VAL*     3.6    28.7    -      -       +      +
   4830D  HIS      6.0     0.4    -      -       -      +
   4831D  ASN      3.9     4.7    +      -       -      +
   4832D  GLY*     3.1    19.0    +      -       -      +
   4834D  GLN*     1.3    78.0    -      -       -      +
   4836D  VAL*     1.3    63.3    +      -       -      +
   4838D  THR*     3.3     9.1    -      -       +      +
   4839D  VAL*     3.1    47.4    +      -       +      +
   4930D  ILE*     5.6     7.4    -      -       +      -
   4933D  LEU*     6.2     3.8    -      -       +      +
   4934D  ILE*     4.1    20.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL4836 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   4832D  GLY      3.3     9.0    +      -       -      +
   4833D  LYS*     3.3    22.4    -      -       -      +
   4835D  LEU*     1.3    81.0    -      -       -      +
   4837D  MET*     1.3    57.6    +      -       +      +
   4839D  VAL*     4.1     5.7    -      -       +      +
   4840D  GLY*     3.0    23.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET4837 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   4833D  LYS      3.9     6.7    -      -       -      +
   4834D  GLN      3.1    10.6    +      -       -      +
   4836D  VAL*     1.3    80.0    -      -       +      +
   4838D  THR*     1.3    53.1    +      -       -      +
   4840D  GLY*     3.2     3.2    +      -       -      -
   4841D  LEU*     2.7    40.0    +      -       +      +
   4818F  VAL*     6.1     2.0    -      -       +      -
   4820F  THR*     3.7    27.8    -      -       +      -
   4821F  LEU*     5.0    10.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR4838 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   4834D  GLN*     3.0    19.6    +      -       +      +
   4835D  LEU*     3.3    15.9    -      -       +      +
   4837D  MET*     1.3    71.0    -      -       -      +
   4839D  VAL*     1.3    54.9    +      -       -      +
   4841D  LEU*     3.1    15.4    +      -       -      +
   4842D  LEU*     2.6    35.2    +      -       -      +
   4926D  LEU*     4.6     2.9    +      -       -      +
   4929D  ILE*     4.1    29.0    -      -       +      +
   4930D  ILE*     3.3    27.9    -      -       +      +
   4933D  LEU*     5.9     3.6    -      -       +      -
   4824F  ILE*     5.7     2.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL4839 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   4920B  PHE*     6.2     6.1    -      -       +      -
   4835D  LEU*     3.1    37.8    +      -       +      +
   4836D  VAL*     4.1     5.8    -      -       +      +
   4838D  THR*     1.3    76.2    -      -       -      +
   4840D  GLY*     1.3    56.8    +      -       -      +
   4842D  LEU*     3.1    17.3    +      -       +      +
   4843D  ALA*     2.9    28.5    +      -       +      +
   4885D  MET*     6.5     0.4    -      -       +      -
   4930D  ILE*     4.3    14.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY4840 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   4836D  VAL      3.0    17.3    +      -       -      -
   4837D  MET      3.2     4.0    +      -       -      -
   4839D  VAL*     1.3    77.9    -      -       -      +
   4841D  LEU*     1.3    59.6    +      -       -      +
   4843D  ALA*     3.2     7.9    +      -       -      +
   4844D  VAL*     3.2    28.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU4841 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   4837D  MET*     2.7    21.0    +      -       +      +
   4838D  THR*     3.1    15.0    +      -       -      +
   4840D  GLY*     1.3    74.2    -      -       -      +
   4842D  LEU*     1.3    61.1    +      -       -      +
   4844D  VAL*     3.2    17.8    -      -       +      +
   4845D  VAL*     3.2    22.0    -      -       +      +
   4815F  ALA*     4.1    26.5    -      -       +      +
   4821F  LEU*     3.6    37.2    -      -       +      +
   4824F  ILE*     3.7    35.2    -      -       +      -
   4825F  LEU*     6.5     2.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU4842 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   4920B  PHE*     5.3     8.3    -      -       +      -
   4838D  THR*     2.6    20.0    +      -       -      +
   4839D  VAL*     3.1    17.7    +      -       +      +
   4841D  LEU*     1.3    73.6    -      -       -      +
   4843D  ALA*     1.3    62.4    +      -       +      +
   4845D  VAL*     3.3    16.1    -      -       +      +
   4846D  VAL*     3.2    22.6    -      -       +      +
   4885D  MET*     3.7    34.5    -      -       +      -
   4889D  VAL*     5.0    13.2    -      -       +      -
   4922D  VAL*     5.4     3.6    -      -       +      +
   4926D  LEU*     4.6    22.2    -      -       +      -
   4927D  LEU*     4.7    15.5    -      -       +      -
   4930D  ILE*     4.8    15.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA4843 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   4839D  VAL*     2.9    15.8    +      -       +      +
   4840D  GLY*     3.2     8.9    +      -       -      +
   4842D  LEU*     1.3    82.1    -      -       +      +
   4844D  VAL*     1.3    62.8    +      -       +      +
   4846D  VAL*     3.3    16.1    -      -       -      +
   4847D  TYR*     3.4     9.4    +      -       -      +
   4881D  TYR*     3.2    25.6    +      -       -      +
   4885D  MET*     6.0     1.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL4844 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   4840D  GLY      3.2    14.5    +      -       -      +
   4841D  LEU*     3.2    31.2    -      -       +      +
   4843D  ALA*     1.3    80.2    -      -       +      +
   4845D  VAL*     1.3    67.8    +      -       +      +
   4847D  TYR*     3.1     9.2    +      -       +      +
   4848D  LEU*     3.0    30.9    +      -       +      +
   4569F  PHE*     6.2     4.5    -      -       +      -
   4811F  LEU*     4.9    20.4    -      -       +      +
   4814F  ILE*     5.7     4.7    -      -       +      -
   4815F  ALA*     4.9    10.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL4845 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   4841D  LEU*     3.2    22.7    -      -       +      +
   4842D  LEU*     3.3    17.0    -      -       +      +
   4844D  VAL*     1.3    82.3    -      -       +      +
   4846D  VAL*     1.3    62.9    +      -       +      +
   4848D  LEU*     3.4    13.8    +      -       +      +
   4849D  TYR*     3.1    34.9    +      -       +      -
   4921D  PHE*     6.6     0.2    -      -       +      -
   4922D  VAL*     4.0    23.3    -      -       +      -
   4926D  LEU*     5.8     4.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL4846 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   4842D  LEU*     3.2    22.7    -      -       +      +
   4843D  ALA*     3.3    16.8    -      -       -      +
   4845D  VAL*     1.3    75.5    -      -       -      +
   4847D  TYR*     1.3    54.3    +      -       -      +
   4849D  TYR*     3.4     8.8    +      -       -      +
   4850D  THR*     2.3    38.6    +      -       -      +
   4881D  TYR*     4.1    14.1    -      -       +      +
   4884D  HIS*     5.2    13.6    +      -       +      +
   4885D  MET*     4.8    20.0    -      -       +      -
   4889D  VAL*     5.4     9.2    -      -       +      -
   4918D  PHE*     4.5    15.0    -      -       +      -
   4922D  VAL*     4.4    20.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR4847 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   4843D  ALA      3.5    12.1    -      -       -      +
   4844D  VAL*     3.1    14.6    +      -       +      +
   4846D  VAL*     1.3    80.0    -      -       -      +
   4848D  LEU*     1.3    75.8    +      -       +      +
   4850D  THR*     3.2    17.3    +      -       +      -
   4851D  VAL*     3.3    32.6    +      -       +      +
   4881D  TYR*     4.1    23.6    -      +       +      -
   4572F  ASN*     3.1    49.1    +      -       +      +
   4575F  LEU*     4.4    11.8    -      -       -      +
   4576F  LEU*     4.8    11.7    +      -       +      -
   4808F  ALA*     4.9    11.4    -      -       +      -
   4811F  LEU*     4.9     7.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU4848 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   4844D  VAL*     3.0    17.6    +      -       +      +
   4845D  VAL*     3.8    14.1    -      -       +      +
   4846D  VAL      3.3     0.2    -      -       -      -
   4847D  TYR*     1.3    80.7    -      -       +      +
   4849D  TYR*     1.3    63.0    +      -       +      +
   4851D  VAL*     3.2    11.4    -      -       -      +
   4852D  VAL*     3.2    24.3    -      -       -      +
   4808F  ALA*     3.3    34.8    -      -       +      +
   4811F  LEU*     4.1    15.0    -      -       +      -
   4812F  LEU*     4.7    18.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR4849 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   4845D  VAL*     3.1    29.3    +      -       +      +
   4846D  VAL*     3.7     6.1    -      -       -      +
   4847D  TYR      3.3     0.2    -      -       -      -
   4848D  LEU*     1.3    78.8    -      -       +      +
   4850D  THR*     1.3    60.1    +      -       -      +
   4852D  VAL*     3.3    21.9    -      -       +      +
   4853D  ALA*     3.5    11.4    +      -       -      +
   4884D  HIS*     4.5     5.3    +      -       -      +
   4914D  PHE*     3.5    36.6    -      +       +      -
   4917D  THR*     3.6    31.3    +      -       +      +
   4918D  PHE*     3.8    38.8    -      +       +      -
   4921D  PHE*     4.3    12.5    -      +       +      -
   4922D  VAL*     4.9     8.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR4850 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   4846D  VAL*     2.3    28.6    +      -       -      +
   4847D  TYR*     3.5    13.3    -      -       +      -
   4848D  LEU      3.2     0.4    -      -       -      -
   4849D  TYR*     1.3    77.4    -      -       -      +
   4851D  VAL*     1.3    62.4    +      -       +      +
   4852D  VAL      3.2     0.2    -      -       -      -
   4853D  ALA*     3.2     3.5    +      -       -      +
   4854D  PHE*     3.0    28.0    +      -       +      +
   4877D  MET      4.6     5.4    -      -       -      +
   4880D  CYS*     3.9    27.9    -      -       +      +
   4881D  TYR*     3.9    27.9    -      -       +      +
   4884D  HIS*     4.0    16.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL4851 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   4847D  TYR*     3.3    37.2    +      -       +      +
   4848D  LEU*     3.2    17.9    -      -       -      +
   4850D  THR*     1.3    78.5    -      -       +      +
   4852D  VAL*     1.3    64.1    +      -       +      +
   4854D  PHE*     3.5     6.8    +      -       -      +
   4855D  ASN*     3.2    33.8    +      -       -      +
   4575F  LEU*     6.6     0.2    -      -       +      -
   4805F  PHE*     3.7    25.6    -      -       +      -
   4808F  ALA*     3.8    24.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL4852 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   4848D  LEU      3.2    13.9    -      -       -      +
   4849D  TYR*     3.3    26.9    -      -       +      +
   4851D  VAL*     1.3    82.6    -      -       +      +
   4853D  ALA*     1.3    64.5    +      -       -      +
   4855D  ASN*     4.5     2.0    -      -       -      +
   4856D  PHE*     3.2    45.2    +      -       +      +
   4857D  PHE*     3.9     7.5    +      -       +      -
   4910D  TYR*     5.9     1.8    -      -       -      +
   4914D  PHE*     4.2    19.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA4853 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   4849D  TYR      3.5    14.1    +      -       -      +
   4850D  THR      3.2     5.5    +      -       -      +
   4852D  VAL*     1.3    80.3    -      -       +      +
   4854D  PHE*     1.3    61.3    +      -       -      +
   4855D  ASN      3.2     0.4    -      -       -      -
   4857D  PHE*     2.9    47.6    +      -       +      +
   4858D  ARG*     4.3     0.7    -      -       -      -
   4861D  TYR*     3.8    19.3    -      -       +      +
   4874D  CYS*     5.9     0.2    -      -       -      +
   4880D  CYS*     6.0     3.1    -      -       -      -
   4884D  HIS*     3.7    22.2    -      -       +      -
   4914D  PHE*     5.3     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE4854 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   4850D  THR*     3.0    16.3    +      -       +      +
   4851D  VAL*     4.0     6.1    -      -       -      +
   4853D  ALA*     1.3    76.7    -      -       -      +
   4855D  ASN*     1.3    71.6    +      -       -      +
   4858D  ARG*     4.8    14.7    -      -       +      +
   4874D  CYS*     3.6    30.1    -      -       +      -
   4875D  ASP      4.7     2.5    -      -       -      -
   4877D  MET*     4.5    29.4    -      -       +      -
   4880D  CYS*     4.9    13.4    -      -       +      -
   4578F  TYR*     4.6    12.8    -      -       +      -
   4579F  LYS*     4.4    13.7    -      -       -      -
   4580F  VAL*     3.6    30.3    -      -       +      +
   4805F  PHE*     4.3    18.2    -      +       -      -
----------------------------------------------------------
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Residues in contact with ASN4855 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   4851D  VAL*     3.2    21.3    +      -       -      +
   4852D  VAL*     3.7     0.8    +      -       -      +
   4853D  ALA      3.2     0.2    -      -       -      -
   4854D  PHE*     1.3    85.4    -      -       -      +
   4856D  PHE*     1.3    89.1    +      -       +      +
   4858D  ARG*     5.5     2.6    -      -       -      +
   4804F  ASN*     5.6     6.5    -      -       -      +
   4805F  PHE*     3.2    41.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE4856 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   4852D  VAL*     3.2    33.8    +      -       +      +
   4855D  ASN*     1.3   100.9    -      -       +      +
   4857D  PHE*     1.3    73.8    +      +       +      +
   4858D  ARG*     2.8    15.6    +      -       -      +
   4859D  LYS*     4.6     5.7    +      -       -      +
   4860D  PHE*     5.8     0.3    -      -       -      -
   4907D  TYR*     4.7    31.4    -      +       +      -
   4910D  TYR*     4.9    22.7    -      +       +      -
----------------------------------------------------------
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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