Contacts of the helix formed by residues 169 - 201 (chain B) in PDB entry 1T7S


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 ALA 169 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168B  GLN*     1.3    78.3    -      -       -      +
    170B  LYS*     1.3    55.6    +      -       -      +
    171B  ARG*     4.5     6.5    -      -       +      +
    172B  ASN*     2.9    18.3    +      -       +      +
    173B  ARG*     2.8    31.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 170 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    169B  ALA*     1.3    71.0    -      -       -      +
    171B  ARG*     1.3    62.7    +      -       +      +
    173B  ARG*     2.9    51.6    +      -       +      +
    174B  GLU*     2.9    45.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 171 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    169B  ALA*     3.4     5.1    -      -       +      +
    170B  LYS*     1.3    80.6    -      -       +      +
    172B  ASN*     1.3    63.7    +      -       -      +
    174B  GLU*     4.0    19.6    -      -       -      +
    175B  LYS*     3.4    33.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 172 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168B  GLN*     4.4    19.7    +      -       +      +
    169B  ALA*     2.9    24.0    +      -       -      +
    171B  ARG*     1.3    84.0    +      -       -      +
    173B  ARG*     1.3    64.7    +      -       -      +
    175B  LYS*     3.7    22.1    +      -       -      +
    176B  ARG*     3.3    25.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 173 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    165B  PRO      3.8    21.1    -      -       -      +
    166B  GLU*     4.1    15.4    +      -       -      +
    168B  GLN*     2.6    37.7    +      -       +      +
    169B  ALA*     2.8    20.1    +      -       -      +
    170B  LYS*     2.9    53.3    +      -       +      +
    172B  ASN*     1.3    73.8    -      -       -      +
    174B  GLU*     1.3    59.9    +      -       -      +
    175B  LYS      3.1     1.8    -      -       -      -
    176B  ARG*     3.2    14.4    +      -       -      +
    177B  LYS*     2.8    44.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 174 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170B  LYS*     2.9    50.9    +      -       -      +
    171B  ARG*     4.0    22.0    -      -       -      +
    173B  ARG*     1.3    77.1    -      -       -      +
    175B  LYS*     1.3    63.4    +      -       +      +
    177B  LYS*     3.5    12.0    -      -       -      +
    178B  THR*     3.1    26.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 175 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    171B  ARG*     3.4    25.2    +      -       -      +
    172B  ASN*     3.7    23.9    +      -       -      +
    173B  ARG      3.1     0.6    -      -       -      -
    174B  GLU*     1.3    86.2    -      -       +      +
    176B  ARG*     1.3    61.9    +      -       -      +
    177B  LYS      3.4     0.2    +      -       -      -
    178B  THR*     3.5    16.6    +      -       -      -
    179B  LEU*     3.5    14.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 176 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    165B  PRO*     3.3    40.9    +      -       -      +
    168B  GLN*     2.8    43.6    -      -       -      +
    172B  ASN      3.3    13.4    +      -       -      +
    173B  ARG*     3.2    20.3    +      -       -      +
    175B  LYS*     1.3    76.4    -      -       -      +
    177B  LYS*     1.3    73.6    +      -       -      +
    179B  LEU*     3.5     8.2    +      -       +      +
    180B  VAL*     2.9    48.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 177 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    173B  ARG*     2.8    39.1    +      -       +      +
    174B  GLU*     3.5    10.5    -      -       -      +
    176B  ARG*     1.3    89.4    -      -       -      +
    178B  THR*     1.3    67.9    +      -       -      +
    180B  VAL*     3.1     8.8    +      -       +      -
    181B  ASN*     2.8    43.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 178 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174B  GLU      3.1    12.3    +      -       -      -
    175B  LYS*     3.5    11.6    -      -       -      -
    176B  ARG      3.3     0.2    -      -       -      -
    177B  LYS*     1.3    77.9    -      -       -      +
    179B  LEU*     1.3    72.1    +      -       +      +
    181B  ASN*     4.0     4.1    -      -       -      +
    182B  GLY*     2.8    29.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 179 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175B  LYS*     3.5    12.7    +      -       +      +
    176B  ARG*     3.5    12.0    +      -       +      +
    177B  LYS      3.3     0.6    -      -       -      -
    178B  THR*     1.3    93.5    -      -       +      +
    180B  VAL*     1.3    63.5    +      -       +      +
    182B  GLY*     3.2     2.1    +      -       -      -
    183B  ILE*     3.0    32.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 180 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    176B  ARG*     2.9    46.3    +      -       +      +
    177B  LYS*     3.1    10.1    +      -       +      +
    179B  LEU*     1.3    74.0    -      -       +      +
    181B  ASN*     1.3    76.9    +      -       -      +
    182B  GLY      3.1     0.2    +      -       -      -
    183B  ILE*     3.3     7.5    +      -       +      +
    184B  GLN*     2.9    27.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 181 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    177B  LYS*     2.8    33.6    +      -       -      +
    178B  THR*     4.0     3.4    -      -       -      +
    180B  VAL*     1.3    82.1    -      -       -      +
    182B  GLY*     1.3    59.0    +      -       -      +
    184B  GLN*     3.0     8.9    +      -       -      +
    185B  THR*     2.8    37.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 182 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    178B  THR      2.8    18.9    +      -       -      -
    179B  LEU*     3.4     3.4    -      -       -      -
    180B  VAL      3.0     1.2    -      -       -      -
    181B  ASN*     1.3    80.4    -      -       -      +
    183B  ILE*     1.3    61.2    +      -       -      -
    185B  THR*     3.4     6.8    +      -       -      -
    186B  LEU*     3.4    23.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 183 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    179B  LEU*     3.0    20.5    +      -       +      +
    180B  VAL*     3.8     8.7    -      -       -      +
    182B  GLY*     1.3    69.9    -      -       -      -
    184B  GLN*     1.3    71.8    +      -       -      +
    186B  LEU*     3.3    14.5    +      -       +      +
    187B  LEU*     3.0    39.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 184 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    180B  VAL*     2.9    18.7    +      -       +      +
    181B  ASN*     3.1    15.5    -      -       -      +
    183B  ILE*     1.3    81.1    -      -       +      +
    185B  THR*     1.3    64.4    +      -       -      +
    187B  LEU*     2.9    32.3    +      -       -      +
    188B  ASN*     2.8    48.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 185 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    181B  ASN*     2.8    21.8    +      -       -      +
    182B  GLY*     3.7     6.3    -      -       -      -
    184B  GLN*     1.3    72.9    -      -       -      +
    186B  LEU*     1.3    65.8    +      -       +      +
    188B  ASN*     3.4    13.4    +      -       -      +
    189B  GLN*     2.9    48.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 186 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    182B  GLY      3.4    18.9    +      -       -      +
    183B  ILE*     3.3    16.8    +      -       +      +
    184B  GLN      3.1     0.8    -      -       -      -
    185B  THR*     1.3    80.1    -      -       +      +
    187B  LEU*     1.3    54.4    +      -       -      +
    189B  GLN*     2.8    25.4    +      -       +      +
    190B  ASN*     2.5    38.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 187 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    183B  ILE*     3.0    34.8    +      -       +      +
    184B  GLN*     2.9    32.6    +      -       -      +
    186B  LEU*     1.3    75.1    -      -       +      +
    188B  ASN*     1.3    63.9    +      -       -      +
    190B  ASN*     3.0    10.4    +      -       +      +
    191B  ASP*     2.9    29.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 188 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    184B  GLN*     2.8    44.5    +      -       -      +
    185B  THR*     3.5    16.4    +      -       -      +
    187B  LEU*     1.3    74.7    -      -       -      +
    189B  GLN*     1.3    64.2    +      -       +      +
    191B  ASP*     3.0    29.7    +      -       -      +
    192B  ALA*     3.1     8.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 189 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    185B  THR*     2.9    33.6    +      -       +      +
    186B  LEU*     2.8    35.1    +      -       +      +
    188B  ASN*     1.3    77.8    -      -       +      +
    190B  ASN*     1.3    61.7    +      -       -      +
    191B  ASP      3.0     0.6    +      -       -      -
    192B  ALA*     3.3     9.3    +      -       -      +
    193B  LEU*     3.0    22.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 190 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    186B  LEU*     2.5    20.4    +      -       +      +
    187B  LEU*     3.5    11.7    -      -       +      +
    189B  GLN*     1.3    72.6    -      -       -      +
    191B  ASP*     1.3    58.3    +      -       -      +
    193B  LEU*     3.5    20.7    -      -       -      +
    194B  LEU*     3.0    25.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 191 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    187B  LEU*     2.9    20.1    +      -       -      +
    188B  ASN*     3.0    19.9    +      -       -      +
    190B  ASN*     1.3    75.2    -      -       -      +
    192B  ALA*     1.3    55.5    +      -       -      +
    193B  LEU      2.9     1.1    -      -       -      -
    194B  LEU*     2.7    27.5    +      -       -      +
    195B  ARG*     2.7    27.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 192 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    188B  ASN      3.1     6.7    +      -       -      +
    189B  GLN*     3.7     9.9    -      -       -      +
    191B  ASP*     1.3    79.7    -      -       -      +
    193B  LEU*     1.3    52.7    +      -       -      +
    195B  ARG*     3.4    21.2    -      -       -      +
    196B  ARG*     2.8    34.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 193 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    189B  GLN      3.0    15.9    +      -       -      +
    190B  ASN*     3.5    23.1    -      -       -      +
    191B  ASP      2.9     0.4    -      -       -      -
    192B  ALA*     1.3    76.0    -      -       -      +
    194B  LEU*     1.3    63.4    +      -       +      +
    196B  ARG*     4.2    23.6    -      -       +      +
    197B  LEU*     3.0    34.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 194 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    190B  ASN*     3.0    15.4    +      -       -      +
    191B  ASP*     2.7    19.6    +      -       -      +
    193B  LEU*     1.3    73.4    -      -       +      +
    195B  ARG*     1.3    69.1    +      -       +      +
    197B  LEU*     3.3    15.9    +      -       +      +
    198B  GLN*     3.1    58.2    +      -       +      +
    201B  GLN*     5.7     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 195 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    191B  ASP*     2.7    18.9    +      -       +      +
    192B  ALA*     3.4    22.7    -      -       -      +
    194B  LEU*     1.3    83.5    -      -       +      +
    196B  ARG*     1.3    64.7    +      -       -      +
    198B  GLN*     3.3     5.9    +      -       -      +
    199B  GLU*     2.9    39.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 196 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    192B  ALA      2.8    18.6    +      -       -      +
    193B  LEU*     3.8    24.4    -      -       +      +
    195B  ARG*     1.3    78.6    -      -       -      +
    197B  LEU*     1.3    67.2    +      -       -      +
    199B  GLU*     3.2    20.4    +      -       -      +
    200B  TYR*     3.2    13.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 197 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    193B  LEU*     3.0    28.8    +      -       +      +
    194B  LEU*     3.6    20.0    -      -       +      +
    195B  ARG      3.3     0.2    -      -       -      -
    196B  ARG*     1.3    77.7    -      -       -      +
    198B  GLN*     1.3    57.7    +      -       -      +
    200B  TYR*     3.2    13.4    +      -       +      +
    201B  GLN*     2.9    47.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 198 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194B  LEU*     3.1    47.7    +      -       +      +
    195B  ARG*     3.9     4.7    -      -       -      +
    197B  LEU*     1.3    69.3    -      -       -      +
    199B  GLU*     1.3    63.1    +      -       -      +
    200B  TYR      2.8     6.9    +      -       -      -
    201B  GLN*     2.8    41.2    +      -       +      +
    202B  SER*     3.9     4.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 199 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    195B  ARG*     2.9    38.5    +      -       +      +
    196B  ARG*     3.2    12.6    +      -       -      +
    198B  GLN*     1.3    76.6    -      -       -      +
    200B  TYR*     1.3    55.1    +      -       -      +
    202B  SER*     3.3    16.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 200 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    196B  ARG*     3.2    10.1    +      -       +      +
    197B  LEU*     3.2    14.9    +      -       +      +
    198B  GLN      2.8     0.6    -      -       -      -
    199B  GLU*     1.3    78.4    -      -       -      +
    201B  GLN*     1.3    56.4    +      -       +      +
    202B  SER*     2.7    24.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 201 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194B  LEU*     5.7     0.4    -      -       -      +
    197B  LEU*     2.9    41.9    +      -       +      +
    198B  GLN*     2.8    42.4    +      -       -      +
    200B  TYR*     1.3    78.8    -      -       +      +
    202B  SER*     1.3    56.9    +      -       -      +
----------------------------------------------------------
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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