Contacts of the helix formed by residues 222 - 254 (chain B) in PDB entry 2QJK


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 LYS 222 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84A  MET      4.2     7.2    -      -       -      +
     85A  ARG*     3.0    28.1    +      -       -      +
     86A  ASN      6.0     0.7    -      -       -      -
     91A  PHE*     3.4    44.0    -      -       +      -
     52B  GLU*     3.3    31.5    +      -       -      +
    220B  GLU*     3.2     7.8    +      -       -      +
    221B  PRO*     1.3    93.6    -      -       +      +
    223B  LEU*     1.3    63.3    +      -       -      +
    224B  MET      3.6     1.1    -      -       -      -
    225B  ALA*     3.5    11.4    +      -       +      +
    226B  ARG*     3.0    24.0    +      -       -      +
     42C  ALA*     5.6     3.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 223 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    431A  BGL      4.2    14.1    -      -       -      +
     13B  PHE*     4.4    16.2    -      -       +      +
     18B  GLY      5.1     1.8    -      -       -      +
     20B  PHE*     3.7    31.2    -      -       +      -
    216B  MET*     4.5    12.1    -      -       +      -
    220B  GLU*     3.0    19.9    +      -       +      +
    221B  PRO      3.2     2.8    -      -       -      -
    222B  LYS*     1.3    75.8    -      -       -      +
    224B  MET*     1.3    72.4    +      -       +      +
    226B  ARG*     2.8    39.6    +      -       -      +
    227B  LYS*     2.9    49.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET 224 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18B  GLY      4.7     2.0    -      -       -      +
     19B  THR*     3.4    39.7    -      -       +      -
     20B  PHE*     3.8    29.8    -      -       +      +
     54B  GLY*     3.8    34.5    -      -       -      +
    221B  PRO      4.8     1.9    +      -       -      +
    223B  LEU*     1.3    84.0    -      -       +      +
    225B  ALA*     1.3    64.7    +      -       -      +
    227B  LYS*     3.0     7.0    +      -       -      +
    228B  GLN*     2.8    42.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 225 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91A  PHE*     3.8    21.7    -      -       +      -
    222B  LYS*     3.5    19.1    +      -       +      +
    223B  LEU      3.2     0.2    -      -       -      -
    224B  MET*     1.3    77.4    -      -       -      +
    226B  ARG*     1.3    58.5    +      -       -      +
    228B  GLN*     3.2    14.5    +      -       -      +
    229B  ALA*     2.8    30.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 226 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91A  PHE*     3.5    24.0    -      -       +      -
     92A  MET*     4.6     4.1    -      -       +      +
     95A  TYR*     3.5    27.5    -      -       +      -
    267A  VAL      4.0    10.3    -      -       -      +
    268A  GLY*     3.0    27.1    +      -       -      +
    269A  PHE      3.9    15.0    +      -       -      -
    271A  PRO*     3.8    14.3    -      -       -      +
    272A  ASN*     5.1     0.8    -      -       -      +
    431A  BGL      4.4     8.3    +      -       -      -
    220B  GLU*     2.4    39.9    +      -       -      +
    222B  LYS      3.0    10.8    +      -       -      +
    223B  LEU*     2.8    40.4    +      -       -      +
    225B  ALA*     1.3    80.6    -      -       -      +
    227B  LYS*     1.3    63.9    +      -       -      +
    229B  ALA*     3.2     7.5    -      -       -      +
    230B  GLY*     3.0    21.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 227 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    268A  GLY      4.2    10.1    -      -       -      +
    269A  PHE*     4.0    15.9    -      -       +      -
    431A  BGL      3.5    31.5    +      -       -      +
     13B  PHE      2.7    24.4    +      -       -      -
     15B  GLY      2.6    23.4    +      -       -      +
     16B  PRO*     3.7    23.6    -      -       +      +
     18B  GLY      4.0    11.6    +      -       -      +
    223B  LEU*     2.9    34.9    +      -       +      +
    224B  MET*     3.0     7.8    +      -       -      +
    226B  ARG*     1.3    79.0    -      -       -      +
    228B  GLN*     1.3    62.2    +      -       +      +
    230B  GLY*     2.9    15.0    +      -       -      +
    231B  PHE*     3.1    21.5    +      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 228 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    224B  MET*     2.8    48.7    +      -       +      +
    225B  ALA*     3.5    11.6    +      -       -      +
    227B  LYS*     1.3    69.9    -      -       -      +
    229B  ALA*     1.3    66.7    +      -       -      +
    230B  GLY      3.0     0.9    +      -       -      -
    231B  PHE*     3.3    17.2    +      -       +      +
    232B  THR*     3.1    24.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 229 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91A  PHE*     5.2     2.0    -      -       +      -
     92A  MET*     4.2    24.9    -      -       +      -
    225B  ALA      2.8    13.4    +      -       -      +
    226B  ARG*     3.2    13.9    -      -       -      +
    228B  GLN*     1.3    77.2    -      -       -      +
    230B  GLY*     1.3    66.4    +      -       -      +
    232B  THR*     3.3     7.0    -      -       -      -
    233B  ALA*     3.0    21.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 230 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    264A  PHE      5.3     2.2    -      -       -      -
    268A  GLY*     4.4    14.8    -      -       -      -
    269A  PHE*     4.2    10.1    -      -       -      -
    226B  ARG      3.0    10.1    +      -       -      -
    227B  LYS      2.9    11.4    +      -       -      -
    229B  ALA*     1.3    78.0    -      -       -      +
    231B  PHE*     1.3    67.4    +      -       -      +
    233B  ALA*     2.8    13.5    +      -       -      +
    234B  VAL*     3.0    16.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 231 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    269A  PHE*     3.9    13.6    -      +       -      -
     16B  PRO*     3.1    28.3    -      -       +      -
     17B  PHE*     2.9    46.4    -      +       -      -
    227B  LYS*     3.1    29.4    +      -       +      -
    228B  GLN*     3.8    16.2    -      -       +      +
    230B  GLY*     1.3    68.6    -      -       -      +
    232B  THR*     1.3    67.2    +      -       -      +
    234B  VAL*     2.9    11.5    +      -       -      +
    235B  MET*     2.7    36.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 232 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228B  GLN      3.1    12.7    +      -       -      -
    229B  ALA*     3.3    12.0    -      -       -      -
    230B  GLY      2.9     0.2    +      -       -      -
    231B  PHE*     1.3    81.1    -      -       -      +
    233B  ALA*     1.3    66.5    +      -       -      +
    235B  MET*     2.8    16.5    +      -       -      +
    236B  PHE*     3.0    41.5    +      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 233 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    264A  PHE*     3.7    40.4    -      -       +      -
    229B  ALA      3.0     8.2    +      -       -      +
    230B  GLY*     2.8    13.5    +      -       -      +
    232B  THR*     1.3    78.2    -      -       -      +
    234B  VAL*     1.3    61.6    +      -       -      +
    236B  PHE*     3.6    11.4    +      -       -      +
    237B  LEU*     3.0    33.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 234 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    261A  LEU*     3.5    22.4    -      -       +      +
    264A  PHE*     5.3     0.4    -      -       +      -
    265A  ALA*     4.6    19.1    -      -       +      +
    269A  PHE*     4.2    17.9    -      -       +      -
    230B  GLY*     3.0    17.9    +      -       -      +
    231B  PHE*     2.9     8.7    +      -       -      +
    233B  ALA*     1.3    77.5    -      -       +      +
    235B  MET*     1.3    65.5    +      -       +      +
    237B  LEU*     3.2     1.3    +      -       -      +
    238B  THR*     2.5    52.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 235 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    231B  PHE*     2.7    30.2    +      -       +      +
    232B  THR*     2.8    11.2    +      -       -      +
    234B  VAL*     1.3    88.5    -      -       +      +
    236B  PHE*     1.3    72.4    +      -       +      +
    238B  THR*     3.1    11.4    +      -       +      +
    239B  VAL*     2.9    30.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 236 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    232B  THR*     3.0    39.1    +      -       +      -
    233B  ALA*     3.7    11.9    -      -       -      +
    235B  MET*     1.3    79.5    -      -       +      +
    237B  LEU*     1.3    57.3    +      -       +      +
    239B  VAL*     3.2     5.2    +      -       -      +
    240B  LEU*     2.6    40.2    +      -       +      +
     22C  ALA*     5.5     4.4    -      -       +      +
     25C  VAL*     3.6    29.8    -      -       +      -
     26C  ALA*     4.7    20.6    -      -       +      -
     29C  ALA*     3.9    29.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 237 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    257A  ALA*     4.0    22.4    -      -       +      +
    260A  LEU*     4.1    20.0    -      -       +      +
    261A  LEU*     4.1    18.2    -      -       +      -
    264A  PHE*     3.6    33.9    -      -       +      -
    233B  ALA*     3.0    24.6    +      -       -      +
    234B  VAL      3.6     1.6    -      -       -      +
    235B  MET      3.1     0.4    -      -       -      -
    236B  PHE*     1.3    82.5    -      -       +      +
    238B  THR*     1.3    55.2    +      -       -      +
    240B  LEU*     4.0    20.2    -      -       +      -
    241B  SER*     2.4    43.4    +      -       -      +
     26C  ALA*     6.2     1.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 238 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    261A  LEU*     3.7    16.2    -      -       +      +
    234B  VAL*     2.5    44.9    +      -       -      +
    235B  MET*     3.7    12.8    -      -       +      +
    237B  LEU*     1.3    72.9    -      -       -      +
    239B  VAL*     1.3    63.7    +      -       +      +
    241B  SER*     3.3     6.1    -      -       -      -
    242B  VAL*     3.0    32.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 239 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235B  MET*     2.9    20.5    +      -       +      +
    236B  PHE*     3.3     7.6    -      -       -      +
    238B  THR*     1.3    75.0    -      -       +      +
    240B  LEU*     1.3    60.7    +      -       -      +
    241B  SER      2.8     3.8    -      -       -      -
    242B  VAL*     2.7    30.8    +      -       +      +
    243B  LEU*     2.9    31.3    +      -       +      -
     22C  ALA*     5.0     7.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 240 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    257A  ALA*     4.8     4.9    -      -       +      -
    236B  PHE*     2.6    23.2    +      -       +      +
    237B  LEU*     3.7    23.1    -      -       +      +
    239B  VAL*     1.3    77.0    -      -       -      +
    241B  SER*     1.3    56.1    +      -       -      +
    243B  LEU*     3.9     6.3    -      -       +      -
    244B  LEU*     2.9    59.4    +      -       +      +
     19C  THR*     4.5     9.4    -      -       +      +
     22C  ALA*     4.1    11.7    -      -       +      +
     23C  GLY*     4.1    32.1    -      -       -      +
     26C  ALA*     4.7    14.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 241 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    254A  PHE*     3.9     6.1    -      -       -      -
    257A  ALA*     3.9    23.2    -      -       -      +
    258A  VAL*     4.1    15.0    +      -       -      -
    261A  LEU*     4.1    12.0    -      -       -      +
    237B  LEU      2.4    33.0    +      -       -      -
    238B  THR*     3.3     8.7    -      -       -      -
    239B  VAL      2.7     0.4    +      -       -      -
    240B  LEU*     1.3    71.1    -      -       -      +
    242B  VAL*     1.3    55.8    +      -       -      -
    244B  LEU*     3.2     3.5    +      -       -      +
    245B  TYR*     2.7    37.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 242 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238B  THR*     3.0    23.3    -      -       +      +
    239B  VAL*     2.7    13.8    +      -       +      +
    241B  SER*     1.3    72.7    -      -       -      +
    243B  LEU*     1.3    64.9    +      -       +      +
    245B  TYR*     3.1    11.7    +      -       +      +
    246B  LEU*     3.0    43.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 243 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    239B  VAL*     2.9    32.2    +      -       +      +
    240B  LEU*     3.8     8.3    -      -       +      +
    242B  VAL*     1.3    79.3    -      -       +      +
    244B  LEU*     1.3    59.3    +      -       -      +
    245B  TYR      3.0     0.7    +      -       -      -
    246B  LEU*     3.0    12.7    +      -       +      +
    247B  THR*     2.7    31.6    +      -       -      -
     15C  LEU*     3.9    22.5    -      -       +      +
     18C  ALA*     3.6    34.5    -      -       +      +
     19C  THR*     3.1    20.2    -      -       +      +
     22C  ALA*     4.2    10.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 244 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    250A  ILE*     4.6    11.5    -      -       +      +
    253A  VAL*     3.6    38.4    -      -       +      +
    254A  PHE*     4.1    18.2    -      -       +      +
    257A  ALA*     4.0    15.0    -      -       +      -
    240B  LEU*     2.9    54.1    +      -       +      +
    241B  SER      3.6     2.9    -      -       -      +
    243B  LEU*     1.3    73.4    -      -       -      +
    245B  TYR*     1.3    56.6    +      -       -      +
    247B  THR*     3.4    10.6    -      -       +      +
    248B  ASN*     2.8    30.1    +      -       -      +
     19C  THR*     4.0    14.6    +      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 245 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    254A  PHE*     3.9    31.8    -      +       +      -
    241B  SER      2.7    17.6    +      -       -      +
    242B  VAL*     3.2    14.8    -      -       +      +
    244B  LEU*     1.3    69.4    -      -       -      +
    246B  LEU*     1.3    75.0    +      -       +      +
    248B  ASN*     3.0     8.5    +      -       +      +
    249B  LYS*     2.8    66.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 246 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    242B  VAL*     3.0    29.2    -      -       +      +
    243B  LEU*     3.0     8.5    +      -       +      +
    245B  TYR*     1.3    93.7    -      -       +      +
    247B  THR*     1.3    67.2    +      -       -      +
    248B  ASN      2.9     0.5    +      -       -      -
    249B  LYS*     2.9    10.5    +      -       +      +
    250B  ARG*     2.7    26.0    +      -       -      +
     15C  LEU*     3.7    33.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 247 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    250A  ILE*     4.1    22.7    -      -       +      -
    243B  LEU      2.7    19.8    +      -       -      -
    244B  LEU*     3.4    14.1    -      -       +      -
    246B  LEU*     1.3    75.6    -      -       -      +
    248B  ASN*     1.3    62.7    +      -       -      +
    250B  ARG*     3.7     3.9    +      -       -      +
    251B  LEU*     3.1    23.6    +      -       -      +
     15C  LEU*     3.8    14.6    -      -       -      +
     16C  TYR*     4.3    28.3    +      -       +      -
     19C  THR*     3.3    26.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 248 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43A  TRP*     4.7     4.2    -      -       -      -
    250A  ILE*     3.3    24.8    -      -       +      +
    251A  LYS*     3.5    25.5    +      -       -      +
    254A  PHE*     4.5    14.8    -      -       +      -
    244B  LEU      2.8    15.3    +      -       -      +
    245B  TYR*     3.2    13.7    +      -       -      +
    246B  LEU      3.0     0.2    -      -       -      -
    247B  THR*     1.3    74.4    -      -       -      +
    249B  LYS*     1.3    70.7    +      -       -      +
    251B  LEU*     2.8    15.5    +      -       -      +
    252B  TRP*     2.9    44.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 249 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    245B  TYR*     2.8    50.4    +      -       +      +
    246B  LEU*     3.5    11.7    -      -       +      +
    248B  ASN*     1.3    75.5    -      -       -      +
    250B  ARG*     1.3    54.0    +      -       -      +
    252B  TRP*     3.8     3.7    -      -       -      +
    253B  ALA*     2.7    41.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 250 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246B  LEU      2.7    20.5    +      -       -      +
    247B  THR      3.7     4.3    -      -       -      +
    249B  LYS*     1.3    76.7    -      -       -      +
    251B  LEU*     1.3    64.4    +      -       -      +
    253B  ALA*     3.3    16.5    +      -       +      +
    254B  GLY*     3.6     4.0    +      -       -      -
      9C  GLY      5.7     2.4    -      -       -      +
     11C  ARG*     5.1     8.5    -      -       -      +
     12C  ARG*     2.7    60.2    -      -       -      +
     15C  LEU*     4.7     8.7    -      -       +      -
     16C  TYR*     4.0    19.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 251 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246A  PRO*     3.5    41.3    -      -       +      +
    247A  TYR*     3.3    40.6    +      -       +      +
    250A  ILE*     3.6    26.9    -      -       +      -
    247B  THR      3.1    15.0    +      -       -      +
    248B  ASN*     2.8     9.5    +      -       -      +
    250B  ARG*     1.3    78.2    -      -       -      +
    252B  TRP*     1.3    62.5    +      -       +      +
    254B  GLY*     3.4    10.0    +      -       -      -
     16C  TYR*     4.6    12.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 252 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39A  ARG      4.2    15.5    -      -       -      -
    242A  VAL*     4.1    20.0    -      -       +      -
    247A  TYR*     3.1    45.8    +      +       +      -
    248A  PHE*     3.6    39.0    -      +       -      -
    251A  LYS*     4.2    19.4    -      -       +      +
    428A  PHE*     4.9    13.7    -      +       -      -
    248B  ASN*     2.9    49.7    +      -       -      +
    249B  LYS*     4.1     3.4    -      -       -      +
    251B  LEU*     1.3    73.1    -      -       +      +
    253B  ALA*     1.3    64.9    +      -       -      +
    254B  GLY      2.8     7.3    +      -       -      -
    255B  VAL*     2.8    29.2    +      -       +      +
    256B  LYS*     3.4    10.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 253 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    249B  LYS*     2.7    29.2    +      -       +      +
    250B  ARG*     3.4     9.6    -      -       -      +
    252B  TRP*     1.3    72.0    -      -       -      +
    254B  GLY*     1.3    57.3    +      -       -      +
    255B  VAL      3.1     5.1    +      -       -      -
    256B  LYS      3.7    18.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 254 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    247A  TYR*     5.1     2.3    +      -       -      -
    250B  ARG      3.6     3.9    +      -       -      -
    251B  LEU      3.4     9.4    +      -       -      -
    252B  TRP      2.8     2.8    +      -       -      -
    253B  ALA*     1.3    78.0    -      -       -      +
    255B  VAL*     1.3    63.8    +      -       -      +
----------------------------------------------------------
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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