Contacts of the strand formed by residues 175 - 201 (chain B) in PDB entry 2NQY


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 ASP 175 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56B  GLU      3.4    32.5    -      -       -      +
     57B  THR*     3.7    16.9    -      -       -      +
     58B  GLN      3.3    11.8    -      -       -      +
     59B  THR*     4.0     8.3    +      -       -      +
     62B  GLN*     5.1     0.3    -      -       -      +
     88B  THR*     3.1     3.2    -      -       -      -
     89B  VAL*     2.8    45.3    +      -       +      +
     90B  SER*     4.6     9.4    +      -       -      -
    174B  GLY*     1.3    72.0    -      -       -      -
    176B  MET*     1.3    64.6    +      -       -      +
    177B  TYR      3.4     0.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET 176 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54B  PHE*     3.3    34.1    -      -       +      +
     56B  GLU*     3.2    25.5    +      -       -      -
     57B  THR      4.4     0.5    +      -       -      -
     58B  GLN*     2.7    21.3    +      -       +      +
     60B  HIS*     3.9    32.1    -      -       -      +
     63B  VAL*     3.9    14.8    -      -       +      -
     66B  MET*     4.4     7.0    -      -       +      -
     87B  TRP      4.1     2.0    -      -       -      +
     88B  THR*     3.9    18.6    -      -       -      -
     95B  TYR*     3.5    28.0    -      -       +      +
    163B  PHE*     3.8    17.3    -      -       +      -
    173B  MET*     5.4     1.3    -      -       -      +
    174B  GLY      3.6     1.5    +      -       -      +
    175B  ASP*     1.3    69.6    -      -       -      +
    177B  TYR*     1.3    58.2    +      -       -      +
    178B  GLU      3.5    12.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 177 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17B  GLU*     4.8     2.4    +      -       -      -
     49B  ARG*     4.9     0.7    -      -       -      -
     53B  LYS*     3.4    30.7    -      -       +      +
     54B  PHE*     2.9    31.3    +      -       -      +
     56B  GLU*     3.5    33.0    -      -       +      -
     87B  TRP*     3.0    32.3    +      +       +      +
     88B  THR*     4.6     2.7    -      -       -      -
     89B  VAL*     4.6     2.5    -      -       +      -
    135B  ILE*     3.5    47.4    +      -       +      +
    136B  LYS*     5.2     2.5    -      -       -      -
    175B  ASP      3.4     1.0    +      -       -      -
    176B  MET*     1.3    72.7    -      -       -      +
    178B  GLU*     1.3    84.9    +      -       +      +
      2D  XYP      5.0     1.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 178 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15B  ASP      5.2     2.6    -      -       -      +
     49B  ARG*     2.8    52.6    +      -       -      +
     52B  LYS      3.3    14.8    -      -       -      +
     53B  LYS*     3.1    24.2    +      -       +      +
     54B  PHE*     3.8     7.3    -      -       -      -
     85B  TYR      5.0     0.2    -      -       -      -
     86B  GLY*     3.5    14.5    -      -       -      -
     87B  TRP*     3.4     8.0    +      -       -      -
     95B  TYR*     2.6    28.4    +      -       -      -
    176B  MET*     3.5     7.1    -      -       -      +
    177B  TYR*     1.3   100.9    -      -       +      +
    179B  VAL*     1.3    65.8    +      -       -      +
    180B  ALA*     3.8     6.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 179 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51B  GLY*     3.3     1.2    -      -       -      -
     52B  LYS      2.7    40.0    +      -       -      +
     54B  PHE*     3.7    23.1    -      -       +      -
     66B  MET*     4.1    14.6    -      -       -      -
     68B  ILE*     4.4     6.1    -      -       +      -
     84B  VAL*     3.8    20.4    -      -       +      -
     85B  TYR      3.6     2.5    -      -       -      -
     95B  TYR*     3.4    16.6    -      -       -      +
    159B  VAL*     4.1    20.6    -      -       +      -
    163B  PHE*     5.0     0.2    -      -       +      -
    176B  MET*     4.5     0.4    -      -       +      -
    178B  GLU*     1.3    73.1    -      -       -      +
    180B  ALA*     1.3    62.8    +      -       -      +
    199B  LEU*     3.8    27.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 180 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49B  ARG*     3.8    19.5    -      -       +      -
     50B  LYS      3.6    21.8    -      -       -      +
     51B  GLY*     3.7     3.8    -      -       -      +
     68B  ILE*     4.6     2.2    -      -       -      -
     84B  VAL*     3.4     5.5    -      -       -      -
     85B  TYR      2.8    38.1    +      -       -      +
    178B  GLU*     3.8    17.0    -      -       -      +
    179B  VAL*     1.3    81.1    -      -       -      +
    181B  LEU*     1.3    59.6    +      -       -      +
    182B  THR*     3.0     7.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 181 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36B  PHE*     3.8     6.7    -      -       +      -
     49B  ARG*     3.3     3.6    -      -       -      -
     50B  LYS      3.2    27.6    +      -       -      -
     51B  GLY*     4.8     0.2    -      -       -      -
     68B  ILE*     4.3    10.5    -      -       +      +
     70B  TYR*     3.8    40.2    -      -       +      -
     82B  LEU*     4.0    24.2    -      -       +      -
     83B  CYS      3.5    14.1    -      -       -      +
     84B  VAL*     4.1    15.7    -      -       +      +
    157B  ILE*     4.7     2.2    -      -       +      -
    180B  ALA*     1.3    70.2    -      -       -      +
    182B  THR*     1.3    61.3    +      -       -      +
    194B  VAL*     4.1    25.6    -      -       +      -
    197B  ASN*     3.5    30.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 182 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36B  PHE*     4.8     0.2    -      -       -      -
     47B  LEU*     4.2    21.1    -      -       +      -
     48B  PHE      3.2    13.2    -      -       -      +
     49B  ARG*     3.2    17.1    -      -       +      +
     81B  TYR      3.5     2.6    -      -       -      +
     82B  LEU*     3.6     4.9    -      -       -      +
     83B  CYS*     2.6    43.5    +      -       -      -
     85B  TYR*     3.1    28.0    -      -       +      +
    180B  ALA*     3.0    15.4    +      -       -      +
    181B  LEU*     1.3    75.0    -      -       -      +
    183B  VAL*     1.3    77.1    +      -       -      +
    184B  GLU*     4.1     2.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 183 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36B  PHE*     4.2    16.4    -      -       +      -
     38B  ALA*     4.8     1.1    -      -       +      -
     40B  TRP*     3.8    36.1    -      -       +      -
     47B  LEU*     3.4     2.3    -      -       -      -
     48B  PHE*     2.7    54.9    +      -       +      +
     74B  PHE*     4.1     8.7    -      -       +      -
     81B  TYR      3.4     7.6    -      -       -      +
     82B  LEU*     4.1    18.2    -      -       +      -
    182B  THR*     1.3    78.3    -      -       -      +
    184B  GLU*     1.3    62.9    +      -       -      +
    192B  ALA*     3.9    20.0    -      -       +      -
    194B  VAL*     4.4     5.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 184 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40B  TRP*     5.2     0.2    -      -       -      -
     45B  ASN*     4.4     6.4    +      -       -      -
     46B  ILE      3.3    11.9    -      -       -      +
     47B  LEU*     3.9    22.7    -      -       +      +
     80B  ALA*     3.0     9.8    -      -       -      +
     81B  TYR*     2.9    53.8    +      -       +      +
     83B  CYS*     5.1     1.5    -      -       -      -
     85B  TYR*     4.7     0.3    -      -       -      -
     96B  TYR*     2.9    40.0    +      -       -      -
    182B  THR*     4.1     4.6    -      -       +      -
    183B  VAL*     1.3    78.9    -      -       -      +
    185B  GLY*     1.3    69.0    +      -       -      +
    186B  TYR*     5.5     1.4    -      -       +      +
   3002B  XYP      4.1    18.0    -      -       -      -
      1D  XYP      3.8    10.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 185 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40B  TRP*     3.9    21.7    -      -       -      -
     43B  VAL*     4.3     3.6    -      -       -      -
     44B  SER      3.8     0.2    -      -       -      +
     45B  ASN*     3.7     4.9    +      -       -      -
     46B  ILE*     2.9    41.0    +      -       -      +
     79B  ASN      3.7     6.3    -      -       -      -
     80B  ALA*     4.3     0.2    -      -       -      -
    184B  GLU*     1.3    80.1    -      -       -      +
    186B  TYR*     1.3    60.8    +      -       -      +
    187B  GLN      4.2     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 186 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44B  SER*     3.3     6.7    -      -       -      -
     45B  ASN*     3.1    29.6    -      -       -      +
     79B  ASN*     3.0    61.2    +      -       +      +
     80B  ALA*     4.7     0.2    -      -       -      +
     81B  TYR*     5.8     1.8    -      -       +      +
    184B  GLU*     5.5     3.4    -      -       +      +
    185B  GLY*     1.3    72.6    -      -       -      +
    187B  GLN*     1.3   108.5    +      -       +      +
    188B  SER*     3.3     4.9    +      -       -      -
   3002B  XYP      3.4    34.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 187 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42B  SER*     5.8     0.4    -      -       -      -
     43B  VAL      3.1    12.7    +      -       -      +
     44B  SER*     2.7    37.3    +      -       -      +
     79B  ASN      5.2     0.5    +      -       -      -
    185B  GLY      4.2     0.4    -      -       -      -
    186B  TYR*     1.3   113.1    +      -       +      +
    188B  SER*     1.3    58.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 188 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40B  TRP*     3.2    25.1    +      -       -      -
     42B  SER*     3.4    15.3    +      -       -      +
     43B  VAL*     3.4     9.8    +      -       -      +
     77B  SER      3.7    11.9    -      -       -      -
     78B  GLY*     3.9     2.1    -      -       -      -
     79B  ASN      2.7    37.6    +      -       -      -
    186B  TYR      3.4     8.7    +      -       -      -
    187B  GLN*     1.3    78.9    -      -       -      +
    189B  SER*     1.3    68.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 189 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40B  TRP*     3.2    24.5    +      -       -      +
     41B  SER*     3.3     7.6    +      -       -      -
     42B  SER*     3.1    24.6    +      -       -      -
     76B  PRO*     4.0     0.5    -      -       -      +
     77B  SER*     2.7    44.7    +      -       -      +
    188B  SER*     1.3    72.7    +      -       -      +
    190B  GLY*     1.3    54.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 190 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39B  SER*     3.5     1.7    -      -       -      -
     40B  TRP*     3.0    43.7    +      -       -      +
     75B  GLN      3.5    12.6    -      -       -      -
     77B  SER*     3.9     7.9    -      -       -      -
    189B  SER*     1.3    77.1    -      -       -      +
    191B  SER*     1.3    63.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 191 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38B  ALA      3.2    14.6    -      -       -      -
     39B  SER*     3.9    11.2    -      -       -      -
     40B  TRP*     3.6     8.3    -      -       -      -
     75B  GLN*     2.9    42.8    +      -       -      +
     76B  PRO      4.0     0.3    -      -       -      -
    190B  GLY*     1.3    76.1    -      -       -      -
    192B  ALA*     1.3    64.0    +      -       -      +
----------------------------------------------------------
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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
----------------------------------------------------------
     37B  SER*     3.4     4.9    -      -       -      -
     38B  ALA*     2.9    34.9    +      -       +      +
     40B  TRP*     4.4     1.3    -      -       +      -
     72B  ALA*     5.8     1.3    -      -       +      -
     73B  ASN      3.2    11.4    -      -       -      +
     74B  PHE*     4.1    15.0    -      -       +      -
     75B  GLN*     5.9     0.2    -      -       -      -
    183B  VAL*     3.9    34.3    -      -       +      -
    191B  SER*     1.3    78.7    -      -       -      +
    193B  ASN*     1.3    62.1    +      -       -      +
    194B  VAL*     4.1     3.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 193 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31B  ASN*     4.5     5.7    -      -       -      +
     36B  PHE      3.7     5.1    -      -       -      +
     37B  SER*     3.5    20.7    -      -       -      -
     72B  ALA*     3.2     2.5    -      -       -      -
     73B  ASN*     2.7    47.2    +      -       +      +
    192B  ALA*     1.3    73.2    -      -       -      +
    194B  VAL*     1.3    65.1    +      -       -      +
    195B  TYR*     3.2    25.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 194 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31B  ASN*     5.5     0.2    -      -       -      +
     34B  GLY      4.4     6.7    -      -       -      +
     35B  THR*     3.2    20.4    -      -       -      -
     36B  PHE*     2.9    53.6    +      -       +      +
     71B  GLY      3.6     6.1    -      -       -      +
     72B  ALA*     4.0    14.8    -      -       +      -
    181B  LEU*     4.1    19.5    -      -       +      -
    183B  VAL*     4.4    11.2    -      -       +      -
    192B  ALA*     5.4     0.9    -      -       +      -
    193B  ASN*     1.3    73.1    -      -       -      +
    195B  TYR*     1.3    58.0    +      -       -      +
    196B  SER      3.4    22.0    -      -       -      +
    197B  ASN*     3.7    17.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 195 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35B  THR*     3.3    16.3    -      -       -      +
     71B  GLY*     3.0    26.3    +      -       -      -
     72B  ALA      3.5    25.2    +      -       -      -
     73B  ASN*     3.7     7.6    -      -       +      -
    153B  THR      4.6     0.2    +      -       -      -
    154B  SER*     4.1    10.6    -      -       -      -
    193B  ASN*     3.2    28.8    +      -       -      +
    194B  VAL*     1.3    72.9    -      -       -      +
    196B  SER*     1.3    68.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 196 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35B  THR*     4.0     2.5    -      -       -      -
     69B  SER*     4.2     9.5    +      -       -      -
     70B  TYR*     3.1     7.0    -      -       -      +
     71B  GLY*     2.9    38.1    +      -       -      +
    194B  VAL*     3.3     6.9    -      -       -      +
    195B  TYR*     1.3    94.3    -      -       -      +
    197B  ASN*     1.3    66.5    +      -       -      +
    198B  THR*     5.0     3.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 197 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14B  TYR*     3.6     8.7    +      -       -      -
     34B  GLY*     3.0    53.0    +      -       -      +
     35B  THR*     4.2     5.1    -      -       -      +
     36B  PHE*     4.7     2.0    -      -       -      -
     50B  LYS*     3.2    26.7    +      -       -      +
     68B  ILE*     3.4    24.1    -      -       -      +
     69B  SER      3.3     5.4    -      -       -      -
     70B  TYR*     4.3     0.4    -      -       -      +
    181B  LEU*     3.5    19.4    +      -       +      +
    194B  VAL*     3.7     9.4    -      -       +      -
    196B  SER*     1.3    79.7    +      -       -      +
    198B  THR*     1.3    65.2    +      -       -      +
    199B  LEU*     4.6     1.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 198 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14B  TYR*     3.2     7.4    -      -       -      +
     67B  SER      3.7     0.9    -      -       -      +
     68B  ILE*     3.2     4.9    -      -       -      -
     69B  SER*     2.9    38.9    +      -       -      -
    196B  SER*     5.0     3.5    +      -       -      -
    197B  ASN*     1.3    80.0    +      -       -      +
    199B  LEU*     1.3    62.2    -      -       -      +
    200B  ARG*     3.6    30.3    +      -       -      +
    205B  PRO*     3.9    23.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 199 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14B  TYR*     2.7    23.5    +      -       +      +
     51B  GLY*     4.3     2.9    -      -       -      -
     52B  LYS*     3.5    37.5    -      -       +      +
     66B  MET*     4.5     5.2    -      -       +      -
     67B  SER      3.6    14.6    -      -       -      +
     68B  ILE*     3.8    21.3    -      -       +      -
    179B  VAL*     3.8    24.0    -      -       +      +
    197B  ASN*     4.6     1.3    +      -       -      +
    198B  THR*     1.3    71.9    -      -       -      +
    200B  ARG*     1.3    72.9    +      -       -      +
    201B  ILE*     4.3    12.1    +      -       +      -
    204B  ASN      3.9     0.2    -      -       -      +
    205B  PRO*     3.2     2.8    -      -       -      +
    206B  LEU*     3.0    43.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 200 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65B  ASN      3.6     1.0    -      -       -      +
     66B  MET*     3.4     4.9    -      -       -      -
     67B  SER*     2.8    47.2    +      -       -      +
     69B  SER*     4.3    15.0    +      -       -      -
    198B  THR*     3.6    23.7    +      -       +      +
    199B  LEU*     1.3    76.4    -      -       -      +
    201B  ILE*     1.3    62.5    +      -       -      +
    202B  ASN      4.1     0.2    -      -       -      -
    203B  GLY*     3.6    31.2    +      -       -      +
    204B  ASN      3.5     2.5    -      -       -      -
    205B  PRO*     3.8    32.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 201 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52B  LYS*     4.5     4.5    -      -       +      -
     54B  PHE*     4.2    30.1    -      -       +      -
     63B  VAL*     3.5    33.2    -      -       +      +
     64B  GLY*     4.6     0.7    -      -       -      -
     65B  ASN      3.3     5.8    -      -       -      +
     66B  MET*     4.0    12.6    -      -       +      -
    199B  LEU*     4.3    11.2    -      -       +      -
    200B  ARG*     1.3    77.8    -      -       -      +
    202B  ASN*     1.3    75.5    +      -       -      +
    204B  ASN*     3.0    27.7    +      -       -      +
    206B  LEU*     4.2    23.6    -      -       +      -
----------------------------------------------------------
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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