Contacts of the helix formed by residues 159 - 180 (chain C) in PDB entry 3J41


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 SER 159 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156B  ARG      3.5     7.2    -      -       -      -
    157B  LEU      3.0    22.3    +      -       -      -
    158B  GLY*     3.4     7.9    -      -       -      -
    159B  SER      4.7     3.1    -      -       -      -
     57C  GLN*     3.6     5.5    +      -       -      +
    157C  LEU      3.7     4.0    +      -       -      +
    158C  GLY*     1.3    70.7    -      -       -      -
    160C  VAL*     1.3    61.4    +      -       -      +
    161C  ALA*     3.3    11.3    +      -       -      +
    162C  LEU*     3.1    32.6    +      -       -      +
    163C  ALA*     3.2    18.9    +      -       -      +
     57D  GLN*     4.7     0.2    +      -       -      -
    159D  SER*     4.7     4.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 160 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    154B  ASN*     5.7     4.5    -      -       -      +
    156B  ARG*     3.3    37.9    +      -       +      +
     56C  VAL*     4.6     6.1    -      -       +      -
    148C  THR*     3.6    32.8    -      -       -      +
    149C  TYR*     4.2    23.3    -      -       +      -
    157C  LEU*     4.2    12.8    -      -       +      -
    158C  GLY      4.3     3.1    -      -       -      +
    159C  SER*     1.3    71.7    -      -       -      +
    161C  ALA*     1.3    65.6    +      -       +      +
    163C  ALA*     3.6     7.1    -      -       -      +
    164C  VAL*     3.0    36.4    +      -       -      +
     57D  GLN*     5.3     0.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 161 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156B  ARG      4.9     0.4    +      -       -      -
     53C  ALA*     3.1    36.4    -      -       +      +
     56C  VAL*     3.6    26.1    -      -       +      +
     57C  GLN*     3.4    30.3    -      -       +      +
    159C  SER*     3.5     0.7    -      -       -      +
    160C  VAL*     1.3    83.5    -      -       +      +
    162C  LEU*     1.3    57.7    +      -       -      +
    164C  VAL*     3.8     2.1    -      -       -      +
    165C  GLY      2.9    22.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 162 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    162B  LEU*     3.9    25.6    -      -       +      -
    163B  ALA*     6.3     2.0    -      -       -      -
    166B  PHE*     3.9    19.3    -      -       +      -
     50C  LEU*     4.3     3.1    -      -       +      -
     53C  ALA*     3.8    16.1    -      -       +      +
    159C  SER*     3.1    25.7    +      -       -      +
    161C  ALA*     1.3    75.2    -      -       -      +
    163C  ALA*     1.3    55.5    +      -       -      +
    165C  GLY      3.5     0.3    -      -       -      -
    166C  PHE*     2.7    83.9    +      -       +      +
    162D  LEU*     3.9    17.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 163 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144C  CYS*     3.9     6.3    -      -       -      -
    148C  THR*     4.1    12.1    -      -       +      -
    159C  SER      3.2    11.5    +      -       -      +
    160C  VAL      3.6     8.5    -      -       -      +
    162C  LEU*     1.3    78.8    -      -       -      +
    164C  VAL*     1.3    57.9    +      -       -      +
    166C  PHE*     3.3     6.5    +      -       -      +
    167C  SER*     2.9    28.2    +      -       -      -
     54D  THR*     4.7     3.4    +      -       -      +
     57D  GLN*     3.8    34.3    -      -       +      +
    159D  SER*     5.9     0.2    -      -       -      +
    162D  LEU*     6.3     2.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 164 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52C  LEU*     3.6    26.9    -      -       +      -
     56C  VAL*     4.5     9.0    -      -       +      -
    141C  PHE*     3.5    15.2    -      -       +      -
    144C  CYS*     4.4     3.1    -      -       -      +
    145C  ILE*     3.9    24.2    -      -       +      -
    148C  THR*     3.6    20.9    -      -       -      +
    149C  TYR*     4.1    15.0    -      -       +      +
    160C  VAL      3.0    21.2    +      -       -      +
    161C  ALA*     3.8     5.4    -      -       -      +
    163C  ALA*     1.3    75.9    -      -       -      +
    165C  GLY*     1.3    61.1    +      -       -      +
    167C  SER*     3.1     9.8    +      -       -      -
    168C  LEU      3.0    17.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 165 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49C  GLY*     3.1    37.7    -      -       -      -
     52C  LEU*     4.2     6.7    -      -       -      -
     53C  ALA*     4.1     6.3    -      -       -      -
    161C  ALA      2.9    16.4    +      -       -      -
    162C  LEU      3.2     2.9    +      -       -      -
    164C  VAL*     1.3    77.6    -      -       -      +
    166C  PHE*     1.3    56.6    +      -       -      +
    168C  LEU*     3.0     2.3    +      -       -      +
    169C  THR*     2.9    23.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 166 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    166B  PHE*     4.1    16.4    -      +       -      -
     46C  LEU*     4.2    20.6    -      -       +      -
     50C  LEU*     4.3     9.4    -      -       +      -
    162C  LEU*     2.7    58.0    +      -       +      +
    163C  ALA*     3.8     5.4    -      -       -      +
    165C  GLY*     1.3    70.5    -      -       -      +
    167C  SER*     1.3    59.7    +      -       -      +
    169C  THR*     3.3    11.3    +      -       -      -
    170C  LEU*     2.9    27.2    +      -       -      +
     50D  LEU*     3.7    38.5    -      -       +      +
     53D  ALA*     6.1     2.2    -      -       +      -
     54D  THR*     4.4     4.3    -      -       -      +
    162D  LEU*     3.9    27.6    -      -       +      -
    166D  PHE*     4.1    14.8    -      +       -      -
----------------------------------------------------------
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Residues in contact with SER 167 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    140C  GLN*     2.6    41.3    +      -       -      +
    141C  PHE*     3.3    20.1    -      -       -      -
    144C  CYS*     4.0    12.3    -      -       -      -
    163C  ALA      2.9    13.6    +      -       -      -
    164C  VAL*     3.1    11.4    +      -       -      -
    166C  PHE*     1.3    75.4    -      -       -      +
    168C  LEU*     1.3    59.9    +      -       -      +
    170C  LEU*     3.2     3.8    +      -       -      +
    171C  GLY      3.0    23.0    +      -       -      -
     54D  THR*     3.6    15.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 168 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23C  TYR*     3.2    30.1    -      -       +      +
     45C  ALA      4.9     0.2    -      -       -      -
     48C  PHE*     3.5    29.6    -      -       +      +
     49C  GLY*     4.3     0.7    -      -       -      -
     52C  LEU*     3.5    20.4    -      -       +      -
    141C  PHE*     3.9    16.7    -      -       +      -
    164C  VAL      3.0    11.5    +      -       -      +
    165C  GLY      3.3     8.7    -      -       -      +
    167C  SER*     1.3    78.0    -      -       -      +
    169C  THR*     1.3    58.2    +      -       -      +
    171C  GLY*     3.1     2.9    +      -       -      -
    172C  HIS*     2.8    51.5    +      -       +      -
    183C  MET*     3.6    32.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 169 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42C  LEU*     6.2     0.2    -      -       +      -
     45C  ALA*     2.8    41.6    +      -       +      +
     46C  LEU*     3.9    17.7    -      -       +      +
     49C  GLY*     3.2    15.4    -      -       -      -
    165C  GLY      2.9     8.8    +      -       -      -
    166C  PHE*     3.4    18.9    -      -       -      -
    168C  LEU*     1.3    76.5    -      -       -      +
    170C  LEU*     1.3    51.7    +      -       -      +
    172C  HIS*     3.1     4.2    +      -       -      +
    173C  LEU*     2.8    40.9    +      -       +      +
     50D  LEU*     3.7    19.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 170 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    140C  GLN*     4.0    23.1    -      -       +      +
    166C  PHE      2.9    14.5    +      -       -      +
    167C  SER*     3.3     9.0    -      -       -      +
    169C  THR*     1.3    76.8    -      -       -      +
    171C  GLY*     1.3    61.5    -      -       -      +
    173C  LEU*     3.2     9.0    +      -       +      +
    174C  PHE*     3.1    22.8    +      -       +      +
     26D  PHE*     4.0    39.0    -      -       +      +
     47D  ALA*     3.6    32.3    -      -       +      +
     50D  LEU*     4.0     5.8    -      -       +      +
     51D  ALA*     3.8    29.4    -      -       +      +
     54D  THR*     4.6     3.1    -      -       +      +
     55D  LEU*     6.5     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 171 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137C  LEU*     3.5    15.1    -      -       -      +
    140C  GLN*     3.8    11.8    +      -       -      -
    167C  SER      3.0    11.3    +      -       -      -
    168C  LEU      3.1     4.7    +      -       -      -
    170C  LEU*     1.3    75.5    -      -       -      +
    172C  HIS*     1.3    52.3    +      -       -      +
    175C  GLY*     2.8    33.3    +      -       -      -
    181C  ALA*     4.0     2.0    -      -       -      +
    183C  MET*     3.7    20.9    -      -       -      -
     26D  PHE*     4.9     2.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with HIS 172 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23C  TYR*     5.1     0.4    -      -       -      -
     41C  VAL*     3.8     1.3    -      -       -      +
     44C  VAL*     4.3     1.3    -      -       +      -
     45C  ALA*     3.5    20.6    -      -       +      -
     48C  PHE*     3.4    44.2    -      +       +      +
    168C  LEU*     2.8    50.7    +      -       +      -
    169C  THR      3.1     7.9    +      -       -      +
    171C  GLY*     1.3    74.3    -      -       -      +
    173C  LEU*     1.3    65.9    +      -       -      +
    174C  PHE      3.0     3.6    +      -       -      -
    176C  MET*     3.0    43.8    +      -       +      +
    180C  GLY      4.5     1.8    -      -       -      -
    181C  ALA*     3.9    29.3    +      -       +      -
    182C  GLY      5.0     3.6    +      -       -      -
    183C  MET*     3.9    10.7    -      -       +      -
    187C  ARG*     5.3     0.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 173 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41C  VAL*     3.8    14.3    -      -       +      +
     42C  LEU*     4.0    19.5    -      -       +      -
     45C  ALA*     3.6    18.4    -      -       +      -
    169C  THR*     2.8    35.1    +      -       +      +
    170C  LEU*     3.2    10.3    +      -       -      +
    172C  HIS*     1.3    72.3    -      -       -      +
    174C  PHE*     1.3    61.0    +      -       -      +
    177C  TYR*     4.5     9.7    -      -       -      -
     30D  ALA*     4.0    12.6    -      -       +      +
     43D  GLN*     3.9    30.5    -      -       +      +
     46D  LEU*     4.0    11.7    -      -       +      +
     47D  ALA*     3.6    43.7    -      -       +      +
     50D  LEU*     4.5     2.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 174 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    133C  VAL*     3.6    27.8    -      -       +      -
    137C  LEU*     3.3    17.5    -      -       +      -
    170C  LEU*     3.1    14.7    +      -       +      +
    171C  GLY      4.1     0.2    -      -       -      +
    172C  HIS      3.0     0.4    -      -       -      -
    173C  LEU*     1.3    80.2    -      -       -      +
    175C  GLY*     1.3    75.3    +      -       -      +
    176C  MET      3.6     1.0    +      -       -      -
    177C  TYR*     4.0    10.2    +      -       -      -
    178C  TYR*     3.4    43.4    -      +       -      -
     25D  PHE*     3.4    39.9    -      +       -      -
     26D  PHE*     3.8    25.1    -      +       +      +
     29D  GLY*     3.5    37.7    -      -       -      +
     30D  ALA*     3.8     7.6    -      -       +      +
    104D  LEU*     3.9     6.7    -      -       +      -
    107D  VAL*     6.4     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 175 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    133C  VAL*     4.6     1.6    -      -       -      -
    137C  LEU*     4.1    13.5    -      -       -      -
    171C  GLY      2.8    21.9    +      -       -      -
    174C  PHE*     1.3    83.1    -      -       -      +
    176C  MET*     1.3    64.8    +      -       -      +
    177C  TYR      3.2     3.4    -      -       -      -
    178C  TYR*     2.8    18.0    +      -       -      +
    179C  THR*     2.9    13.2    +      -       -      -
    180C  GLY      3.4     0.5    +      -       -      -
    181C  ALA*     3.7     6.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET 176 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31C  SER*     5.8     1.3    -      -       -      -
     40C  HIS*     3.8    27.4    -      -       +      +
     41C  VAL*     3.9    33.2    -      -       +      +
     44C  VAL*     3.3    44.9    -      -       +      -
    120C  THR      5.2     0.3    -      -       -      +
    172C  HIS*     3.0    37.1    +      -       +      +
    174C  PHE      3.6     0.2    -      -       -      -
    175C  GLY*     1.3    70.6    -      -       -      +
    177C  TYR*     1.3    60.8    +      -       -      +
    180C  GLY*     2.9    44.6    +      -       -      +
    181C  ALA*     3.9     1.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 177 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36C  PRO      3.6     9.9    -      -       -      -
     37C  GLY*     2.6    50.0    +      -       -      -
     38C  PRO*     3.6     2.6    -      -       -      +
     41C  VAL*     3.6    11.7    -      -       +      -
    122C  HIS*     3.3    30.9    +      -       +      +
    173C  LEU      4.5    10.5    -      -       -      -
    174C  PHE      4.3    12.8    -      -       -      +
    175C  GLY      3.2     1.0    -      -       -      -
    176C  MET*     1.3    77.4    -      -       -      +
    178C  TYR*     1.3    64.6    +      +       +      +
     29D  GLY      5.5     7.4    -      -       -      -
     30D  ALA*     5.2     3.1    -      -       -      -
     32D  LEU      5.2     4.7    -      -       -      -
     33D  ARG*     4.3    25.8    +      -       -      -
     43D  GLN*     3.3    18.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 178 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120C  THR      4.4     0.7    -      -       -      -
    121C  LEU*     3.5     1.6    -      -       -      +
    122C  HIS*     2.9    31.8    +      -       -      +
    125C  VAL*     3.9    22.2    -      -       +      +
    133C  VAL*     4.1    19.1    -      -       +      -
    174C  PHE*     3.4    50.6    -      +       -      -
    175C  GLY      2.8     6.2    +      -       -      +
    176C  MET      4.2     0.2    -      -       -      -
    177C  TYR*     1.3    87.2    -      +       +      +
    179C  THR*     1.3    72.4    +      -       +      +
    180C  GLY      3.8     0.2    -      -       -      -
     29D  GLY      4.7     4.7    -      -       -      -
     32D  LEU*     3.6    11.1    -      -       +      +
    104D  LEU*     3.6    15.6    -      -       +      +
    107D  VAL*     3.7    21.5    -      -       +      -
    108D  THR*     3.5    28.9    +      -       -      -
    109D  PRO*     4.0     5.6    -      -       +      -
    112D  VAL*     5.8     2.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 179 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119C  ASN*     3.5     1.4    -      -       -      +
    120C  THR      3.0    20.3    +      -       -      +
    121C  LEU*     3.2    22.4    -      -       +      -
    125C  VAL*     5.0     0.2    -      -       +      -
    130C  ALA*     3.5    28.5    -      -       +      +
    133C  VAL*     4.5     3.3    -      -       +      +
    134C  GLU*     2.6    27.8    +      -       +      +
    137C  LEU*     4.3     4.2    -      -       -      +
    175C  GLY      2.9     6.4    +      -       -      -
    178C  TYR*     1.3    83.3    -      -       +      +
    180C  GLY*     1.3    60.0    +      -       -      +
    181C  ALA*     2.9    10.1    +      -       -      -
    204C  TYR*     2.9    28.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 180 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48C  PHE*     6.0     0.5    -      -       -      -
    119C  ASN*     3.3     7.1    -      -       -      +
    120C  THR      3.6     7.2    +      -       -      -
    172C  HIS*     4.5     2.6    -      -       -      -
    175C  GLY      3.4     0.2    +      -       -      -
    176C  MET*     2.9    38.9    +      -       -      +
    179C  THR*     1.3    76.3    -      -       -      +
    181C  ALA*     1.3    73.4    +      -       -      +
    187C  ARG*     4.7     5.7    +      -       -      -
----------------------------------------------------------
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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