Contacts of the helix formed by residues 135 - 157 (chain C) in PDB entry 1OHV


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 CYS 135 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    133C  MET      3.4     1.2    +      -       -      -
    134C  ALA*     1.3    80.8    -      -       -      +
    136C  GLY*     1.3    60.4    +      -       -      +
    137C  SER*     3.6    11.7    -      -       -      -
    138C  CYS*     3.4    17.3    -      -       -      -
    139C  SER*     2.7    32.6    +      -       -      -
    328C  SER*     3.5    11.9    -      -       -      -
    334C  GLY*     4.4     0.7    -      -       -      -
    600C  PLP      3.5    14.4    -      -       -      +
    800C  FES      2.3    44.2    -      -       -      -
    134D  ALA*     5.7     1.3    -      -       +      -
    138D  CYS*     5.4     1.3    -      -       -      -
    352D  ASN*     6.1     4.7    -      -       -      +
    354D  TRP*     4.3     7.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 136 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135C  CYS*     1.3    75.0    -      -       -      +
    137C  SER*     1.3    57.0    +      -       -      +
    139C  SER*     3.2     5.4    +      -       -      -
    140C  ASN*     3.0    31.7    +      -       -      +
    300C  VAL*     3.9    12.6    -      -       -      +
    328C  SER*     3.2    19.8    +      -       -      -
    600C  PLP      3.1    26.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 137 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135C  CYS*     3.3     7.3    -      -       -      -
    136C  GLY*     1.3    76.4    -      -       -      +
    138C  CYS*     1.3    57.1    +      -       -      +
    140C  ASN      3.2     0.5    +      -       -      -
    141C  GLU*     2.9    32.9    +      -       -      +
    190C  HIS      4.4     2.2    -      -       -      -
    191C  GLY*     3.5    18.4    -      -       -      -
    192C  ARG      3.7     4.7    +      -       -      -
    193C  THR*     3.8    27.2    +      -       -      +
    196C  CYS*     3.2    12.3    -      -       -      -
    600C  PLP      2.5    24.6    +      -       -      -
    800C  FES      4.8     0.7    -      -       -      -
    352D  ASN*     5.2     2.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 138 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    133C  MET*     3.8    10.8    -      -       -      +
    134C  ALA*     3.6    12.8    -      -       -      -
    135C  CYS*     3.4    24.5    -      -       -      -
    137C  SER*     1.3    77.9    -      -       -      +
    139C  SER*     1.3    56.7    +      -       -      +
    141C  GLU*     3.9     8.3    -      -       -      -
    142C  ASN*     2.8    45.3    +      -       -      +
    352C  ASN*     4.9     6.1    -      -       -      +
    800C  FES      2.3    44.1    -      -       -      -
    135D  CYS*     5.5     1.3    -      -       -      -
    193D  THR*     4.6     6.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 139 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    133C  MET*     3.4    10.5    -      -       -      +
    135C  CYS      2.7    19.0    +      -       -      -
    136C  GLY      3.3    10.5    -      -       -      -
    137C  SER      3.1     0.2    -      -       -      -
    138C  CYS*     1.3    77.8    -      -       -      +
    140C  ASN*     1.3    57.7    +      -       -      +
    143C  ALA*     2.9    29.5    +      -       -      +
    326C  THR*     3.6    12.3    -      -       -      +
    327C  PHE      3.5     5.4    +      -       -      -
    335C  GLY      2.8    42.9    +      -       -      -
    336C  PHE*     3.5     7.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 140 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136C  GLY      3.0    12.0    +      -       -      +
    139C  SER*     1.3    73.2    -      -       -      +
    141C  GLU*     1.3    60.8    +      -       -      +
    143C  ALA*     3.5     4.5    -      -       -      +
    144C  PHE*     2.8    47.5    +      -       +      -
    190C  HIS*     2.8    24.5    +      -       -      +
    196C  CYS*     3.8    16.2    -      -       -      -
    263C  ILE*     3.9    13.9    -      -       +      +
    296C  LEU*     4.4     0.7    -      -       -      +
    298C  ASP*     2.8    27.9    +      -       -      +
    300C  VAL*     4.7     0.2    -      -       -      +
    326C  THR*     2.7    30.5    +      -       -      +
    600C  PLP      3.9     6.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 141 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137C  SER      2.9    25.0    +      -       -      +
    138C  CYS      4.0     2.5    -      -       -      +
    140C  ASN*     1.3    76.9    -      -       -      +
    142C  ASN*     1.3    59.2    +      -       -      +
    144C  PHE*     3.2    11.4    +      -       -      +
    145C  LYS*     3.1    29.8    +      -       -      +
    193C  THR*     2.4    29.3    +      -       -      +
    194C  MET      3.7     0.2    +      -       -      -
    195C  GLY*     2.9    21.9    +      -       -      -
    196C  CYS*     3.0    13.9    +      -       -      -
    141D  GLU*     4.9     0.2    -      -       -      -
    193D  THR*     3.9    27.1    -      -       +      -
    194D  MET*     3.0    41.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 142 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    133C  MET*     3.4    27.5    -      -       +      +
    138C  CYS*     2.8    33.9    +      -       -      +
    141C  GLU*     1.3    77.7    -      -       -      +
    143C  ALA*     1.3    56.4    +      -       -      +
    145C  LYS*     3.3    28.1    +      -       -      +
    146C  THR*     2.7    36.9    +      -       -      -
    336C  PHE*     3.6    19.5    -      -       +      -
    350C  ILE*     3.6    18.1    -      -       +      +
    351C  PHE      4.3     5.4    +      -       -      +
    352C  ASN*     4.4     5.1    -      -       -      +
    192D  ARG*     5.6     1.5    +      -       -      +
    193D  THR*     5.0     6.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 143 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    139C  SER      2.9    19.5    +      -       -      +
    140C  ASN      3.2     5.6    +      -       -      +
    142C  ASN*     1.3    74.7    -      -       -      +
    144C  PHE*     1.3    63.9    +      -       -      +
    146C  THR*     3.5     3.5    -      -       -      -
    147C  ILE*     3.0    30.8    +      -       -      +
    296C  LEU*     3.9    15.0    -      -       +      -
    324C  VAL*     3.9    14.4    -      -       +      -
    326C  THR*     3.7    19.5    -      -       +      -
    336C  PHE*     3.8    10.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 144 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    140C  ASN*     2.8    26.9    +      -       +      -
    141C  GLU*     3.2    10.7    +      -       -      +
    143C  ALA*     1.3    76.3    -      -       -      +
    145C  LYS*     1.3    57.2    +      -       -      +
    147C  ILE*     3.2     7.9    +      -       -      +
    148C  PHE*     2.9    47.9    +      -       +      -
    182C  ILE*     4.0    24.2    -      -       +      -
    195C  GLY      3.8    24.5    -      -       -      -
    196C  CYS*     3.8     6.3    -      -       -      -
    199C  THR*     3.5    28.5    -      -       +      -
    215C  TRP*     4.7     2.9    -      +       -      -
    263C  ILE*     3.8    14.1    -      -       +      -
    296C  LEU*     3.5    27.4    -      -       +      -
    194D  MET*     3.5    23.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 145 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141C  GLU      3.1    12.7    +      -       -      +
    142C  ASN*     3.3    27.0    +      -       -      +
    143C  ALA      3.3     0.2    -      -       -      -
    144C  PHE*     1.3    76.4    -      -       -      +
    146C  THR*     1.3    63.5    +      -       -      +
    148C  PHE*     3.2     4.5    +      -       -      +
    149C  MET*     2.9    30.2    +      -       -      +
    349C  ARG      3.4    21.5    +      -       -      -
    350C  ILE*     3.7    10.1    -      -       +      -
    351C  PHE      5.2     0.2    +      -       -      -
    192D  ARG*     2.8    45.5    +      -       -      +
    193D  THR*     5.4     0.7    -      -       -      +
    194D  MET*     4.5    10.1    -      -       +      -
    197D  LEU*     4.4     6.4    -      -       +      +
    206D  HIS      4.9     4.2    +      -       -      -
    210D  ILE*     3.6    43.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 146 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131C  ILE*     5.2     0.3    -      -       -      +
    142C  ASN      2.7    24.6    +      -       -      -
    143C  ALA*     3.5     7.0    -      -       -      -
    144C  PHE      3.3     0.2    -      -       -      -
    145C  LYS*     1.3    75.4    -      -       -      +
    147C  ILE*     1.3    57.8    +      -       -      +
    149C  MET*     3.5     8.7    +      -       +      +
    150C  TRP*     3.0    27.0    +      -       -      +
    324C  VAL*     5.3     3.8    -      -       +      -
    336C  PHE*     3.4    26.0    -      -       +      -
    338C  HIS*     4.5     5.8    -      -       +      +
    342C  PHE*     3.2    42.1    -      -       +      +
    344C  PRO*     5.0     4.6    -      -       +      +
    350C  ILE*     3.5    16.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 147 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143C  ALA      3.0    18.3    +      -       -      +
    144C  PHE*     3.4     9.4    -      -       -      +
    146C  THR*     1.3    74.1    -      -       -      +
    148C  PHE*     1.3    64.6    +      -       -      +
    150C  TRP*     3.2     8.6    +      -       +      +
    151C  TYR*     2.9    22.5    +      -       -      +
    182C  ILE*     4.2     8.3    -      -       +      -
    260C  ALA*     3.4    36.6    -      -       +      +
    261C  GLY*     4.0     7.4    -      -       -      +
    294C  ALA*     3.6    26.0    -      -       +      -
    296C  LEU*     3.9    35.9    -      -       +      -
    324C  VAL*     4.2    11.9    -      -       +      -
    342C  PHE*     4.2     7.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 148 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144C  PHE*     2.9    31.0    +      -       +      -
    145C  LYS*     3.7     8.3    -      -       -      +
    147C  ILE*     1.3    76.0    -      -       -      +
    149C  MET*     1.3    57.5    +      -       -      +
    151C  TYR*     3.3     4.7    +      -       -      +
    152C  ARG*     3.0    33.6    +      -       -      +
    180C  TYR*     3.8    31.4    -      -       +      -
    181C  SER      3.9    12.6    -      -       -      -
    182C  ILE*     3.5    32.8    -      -       +      -
    215C  TRP*     4.0    11.7    -      +       -      -
    260C  ALA*     3.9     7.0    -      -       +      -
    194D  MET*     3.9    18.8    -      -       -      -
    209D  ASP      3.4    17.7    -      -       -      +
    210D  ILE*     4.4     6.1    -      -       +      -
    211D  PRO*     3.4    31.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 149 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145C  LYS      2.9    20.5    +      -       -      +
    146C  THR*     3.6     6.7    -      -       +      +
    148C  PHE*     1.3    78.4    -      -       -      +
    150C  TRP*     1.3    57.5    +      -       -      +
    152C  ARG*     4.0     2.1    -      -       -      +
    153C  SER*     3.1    27.9    +      -       -      -
    156C  ARG*     5.3     0.2    +      -       -      -
    342C  PHE      5.6     0.4    -      -       -      +
    344C  PRO*     3.5    42.6    -      -       +      -
    345C  ASN      4.8     0.2    -      -       -      +
    349C  ARG*     3.2    60.2    +      -       +      +
    350C  ILE*     4.0    16.2    -      -       +      -
    209D  ASP*     4.3    11.3    -      -       +      +
    210D  ILE*     4.3    13.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with TRP 150 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    146C  THR      3.0    17.3    +      -       -      +
    147C  ILE      3.2     9.2    +      -       -      +
    149C  MET*     1.3    77.7    -      -       -      +
    151C  TYR*     1.3    76.5    +      +       +      +
    153C  SER*     3.3     7.8    +      -       -      -
    154C  LYS*     3.0    67.0    +      -       +      +
    260C  ALA      3.7     6.3    -      -       -      -
    292C  GLY*     3.3    15.9    -      -       -      -
    293C  CYS      4.3     0.9    -      -       -      -
    294C  ALA*     3.7    23.3    -      -       +      -
    323C  ASP*     5.7     0.7    -      -       -      -
    341C  GLU*     3.0    52.9    +      -       +      +
    342C  PHE*     3.2    43.5    -      +       +      +
----------------------------------------------------------
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Residues in contact with TYR 151 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    147C  ILE      2.9    15.7    +      -       -      +
    148C  PHE      3.8     3.8    -      -       -      +
    150C  TRP*     1.3    85.6    -      +       +      +
    152C  ARG*     1.3    65.3    +      -       -      +
    153C  SER      3.0     0.9    -      -       -      -
    154C  LYS*     3.1    27.1    +      -       -      +
    155C  GLU*     3.2    35.9    +      -       +      +
    180C  TYR*     3.6    19.3    -      +       +      -
    258C  THR*     3.3    28.5    -      -       +      +
    259C  VAL      4.1     4.3    +      -       -      -
    260C  ALA*     3.7    33.4    -      -       +      -
    291C  HIS      4.5     8.5    +      -       -      -
    292C  GLY*     3.2    26.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 152 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148C  PHE      3.0    18.0    +      -       -      +
    149C  MET      4.1     0.7    -      -       -      +
    151C  TYR*     1.3    76.2    -      -       -      +
    153C  SER*     1.3    61.7    +      -       -      +
    155C  GLU*     3.2    18.9    +      -       -      +
    156C  ARG*     3.1    53.5    +      -       -      +
    165C  GLU*     2.9    24.2    +      -       -      +
    175C  PRO*     3.4    26.7    +      -       -      +
    176C  GLY      4.6     1.0    +      -       -      -
    178C  PRO*     3.6    16.8    -      -       +      +
    180C  TYR*     3.4    27.7    +      -       +      -
    209D  ASP*     3.2    51.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 153 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    149C  MET      3.1    19.6    +      -       -      -
    150C  TRP*     3.4    10.5    -      -       -      -
    151C  TYR      3.0     1.0    -      -       -      -
    152C  ARG*     1.3    77.8    -      -       -      +
    154C  LYS*     1.3    61.4    +      -       -      +
    156C  ARG*     4.2    11.1    -      -       -      +
    157C  GLY*     3.2    25.6    +      -       -      +
    345C  ASN*     6.0     2.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 154 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    150C  TRP*     3.0    50.4    +      -       +      +
    151C  TYR*     3.1    29.8    +      -       -      +
    153C  SER*     1.3    77.4    -      -       -      +
    155C  GLU*     1.3    63.4    +      -       +      +
    157C  GLY*     3.4    11.4    +      -       -      -
    292C  GLY*     2.7    39.0    +      -       -      -
    341C  GLU*     5.2     2.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 155 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    151C  TYR*     3.2    29.4    +      -       +      +
    152C  ARG*     3.2    24.5    +      -       -      +
    154C  LYS*     1.3    82.3    -      -       +      +
    156C  ARG*     1.3    60.6    +      -       +      +
    157C  GLY      3.6     0.3    +      -       -      -
    180C  TYR*     2.3    40.9    +      -       -      -
    258C  THR*     4.9     3.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 156 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    152C  ARG*     3.1    48.4    +      -       -      +
    153C  SER*     4.2    10.0    -      -       -      +
    155C  GLU*     1.3    76.3    -      -       -      +
    157C  GLY*     1.3    70.4    +      -       -      +
    158C  GLN      3.2     0.5    +      -       -      -
    159C  SER*     2.9    55.9    +      -       -      +
    160C  ALA*     4.3     8.2    +      -       -      +
    161C  PHE*     3.7    23.2    -      -       -      +
    165C  GLU*     3.1    30.5    +      -       -      +
    208D  ILE*     4.7     0.4    -      -       -      +
    209D  ASP*     3.1    39.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 157 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    153C  SER*     3.2    21.0    +      -       -      +
    154C  LYS      3.4     7.4    +      -       -      -
    155C  GLU      3.3     4.0    -      -       -      -
    156C  ARG*     1.3    78.1    -      -       -      +
    158C  GLN*     1.3    61.0    +      -       -      -
    159C  SER      4.0     3.3    -      -       -      +
----------------------------------------------------------
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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