Contacts of the helix formed by residues 285 - 315 (chain A) in PDB entry 1SIQ


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 ASN 285 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    277A  GLN      5.6     1.6    +      -       -      -
    278A  PHE*     5.8     6.4    -      -       -      -
    280A  VAL*     5.0    10.2    -      -       -      +
    281A  PRO      4.2     2.4    +      -       -      -
    282A  LEU*     3.0    40.0    +      -       -      +
    284A  ARG*     1.3    80.0    -      -       -      +
    286A  GLN*     1.3    67.4    +      -       -      +
    287A  LEU*     4.4     5.6    -      -       +      +
    288A  ILE*     3.1    18.4    +      -       +      +
    289A  GLN*     3.0    23.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 286 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    284A  ARG*     3.7     8.7    +      -       -      +
    285A  ASN*     1.3    71.8    -      -       -      +
    287A  LEU*     1.3    69.4    +      -       +      +
    289A  GLN*     3.1     9.5    +      -       -      +
    290A  LYS*     3.0    25.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 287 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    285A  ASN*     3.3     6.1    -      -       +      +
    286A  GLN*     1.3    84.5    -      -       +      +
    288A  ILE*     1.3    64.6    +      -       +      +
    290A  LYS*     3.8     9.8    +      -       +      +
    291A  LYS*     3.4    31.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 288 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    272A  ALA*     4.1    15.9    -      -       +      -
    282A  LEU*     3.4    38.1    -      -       +      +
    283A  ALA*     4.1     5.6    -      -       -      -
    285A  ASN*     3.1    18.4    +      -       +      +
    287A  LEU*     1.3    78.6    -      -       +      +
    289A  GLN*     1.3    65.8    +      -       -      +
    291A  LYS*     3.3    20.9    +      -       +      +
    292A  LEU*     3.3    17.7    +      -       +      +
    344A  MET*     3.7    44.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 289 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    283A  ALA*     2.9    31.0    +      -       -      +
    284A  ARG*     4.4    10.0    +      -       -      +
    285A  ASN      3.0    12.4    +      -       -      +
    286A  GLN*     3.1     9.6    +      -       -      +
    288A  ILE*     1.3    73.6    -      -       +      +
    290A  LYS*     1.3    63.6    +      -       -      +
    292A  LEU*     3.3    14.8    +      -       +      +
    293A  ALA*     3.0    23.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 290 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    286A  GLN      3.0    15.6    +      -       -      +
    287A  LEU*     4.0    10.5    -      -       +      +
    289A  GLN*     1.3    76.5    -      -       -      +
    291A  LYS*     1.3    65.6    +      -       +      +
    293A  ALA*     3.2     8.6    +      -       +      +
    294A  ASP*     3.0    45.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 291 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    287A  LEU*     3.4    22.2    -      -       -      +
    288A  ILE*     3.5    12.8    -      -       +      +
    289A  GLN      3.2     0.4    -      -       -      -
    290A  LYS*     1.3    79.5    -      -       +      +
    292A  LEU*     1.3    62.0    +      -       -      +
    294A  ASP*     3.2    10.0    +      -       -      +
    295A  MET*     3.0    32.7    +      -       +      +
    340A  GLN*     3.4    38.3    -      -       -      +
    343A  ASP*     3.3    26.3    +      -       -      -
    344A  MET*     3.9    27.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 292 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    265A  LEU*     3.9    24.3    -      -       +      +
    268A  ALA*     4.4     3.6    -      -       +      -
    269A  ARG*     4.1    33.4    -      -       +      +
    272A  ALA*     4.9     4.7    -      -       +      -
    283A  ALA*     5.5     4.9    -      -       +      -
    288A  ILE*     3.3    25.8    +      -       +      +
    289A  GLN*     3.6    15.3    -      -       +      +
    290A  LYS      3.3     0.2    -      -       -      -
    291A  LYS*     1.3    77.0    -      -       -      +
    293A  ALA*     1.3    62.7    +      -       -      +
    295A  MET*     3.3     9.7    +      -       -      +
    296A  LEU*     3.0    25.3    +      -       -      +
    344A  MET*     3.9    20.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 293 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    289A  GLN      3.0    13.7    +      -       -      +
    290A  LYS*     3.2    12.1    +      -       +      +
    292A  LEU*     1.3    78.3    -      -       -      +
    294A  ASP*     1.3    54.8    +      -       -      +
    296A  LEU*     3.5     6.3    +      -       -      +
    297A  THR*     2.8    38.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 294 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    290A  LYS*     3.0    45.5    +      -       -      +
    291A  LYS*     3.2    10.6    +      -       -      +
    293A  ALA*     1.3    75.7    -      -       -      +
    295A  MET*     1.3    65.2    +      -       +      +
    297A  THR*     3.3     6.8    +      -       -      -
    298A  GLU*     3.1    30.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET 295 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    264A  CYS      5.0     0.4    -      -       -      +
    265A  LEU*     3.9    36.8    -      -       +      -
    268A  ALA*     4.7     2.0    -      -       +      -
    291A  LYS      3.0    19.5    +      -       -      +
    292A  LEU*     3.3    11.9    +      -       -      +
    294A  ASP*     1.3    77.6    -      -       +      +
    296A  LEU*     1.3    62.9    +      -       -      +
    298A  GLU*     3.9     0.5    -      -       -      -
    299A  ILE*     3.0    30.9    +      -       +      +
    337A  ILE*     3.8    38.1    -      -       +      +
    340A  GLN*     3.4    33.2    -      -       +      -
    341A  ALA*     3.6    17.3    -      -       +      +
    344A  MET*     3.7    21.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 296 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4A  PHE*     4.4    10.5    -      -       +      -
      6A  TRP*     3.3    40.4    -      -       +      +
      9A  PRO*     3.5    28.5    -      -       +      -
    265A  LEU*     4.1    22.6    -      -       +      +
    292A  LEU      3.0    15.5    +      -       -      +
    293A  ALA*     3.9     6.3    -      -       -      +
    295A  MET*     1.3    76.3    -      -       -      +
    297A  THR*     1.3    60.2    +      -       -      +
    299A  ILE*     3.8     5.8    -      -       +      +
    300A  THR*     2.7    35.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 297 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    293A  ALA*     2.8    22.9    +      -       -      +
    294A  ASP*     3.6     9.9    +      -       -      -
    296A  LEU*     1.3    78.3    -      -       -      +
    298A  GLU*     1.3    68.5    +      -       -      +
    300A  THR*     3.3     4.9    +      -       -      -
    301A  LEU*     3.1    40.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 298 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    258A  LEU*     5.0     1.3    -      -       -      +
    294A  ASP*     3.1    18.4    +      -       +      +
    295A  MET      4.1     2.5    -      -       -      +
    297A  THR*     1.3    83.7    -      -       -      +
    299A  ILE*     1.3    63.3    +      -       -      +
    301A  LEU*     3.4    21.4    +      -       -      +
    302A  GLY*     3.1    19.2    +      -       -      -
    329A  ASN*     5.1     4.5    +      -       -      -
    330A  ASN*     5.7     0.5    +      -       -      -
    333A  LYS*     2.8    56.6    +      -       +      +
    337A  ILE*     4.4    12.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 299 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    258A  LEU*     4.0    15.8    -      -       +      +
    261A  SER*     3.8    35.4    -      -       -      +
    262A  GLU*     3.8    28.9    -      -       +      +
    265A  LEU*     3.8    27.6    -      -       +      -
    295A  MET*     3.0    20.3    +      -       +      +
    296A  LEU*     3.8     7.9    -      -       +      +
    298A  GLU*     1.3    75.5    -      -       -      +
    300A  THR*     1.3    60.2    +      -       -      +
    302A  GLY*     3.3     2.4    +      -       -      -
    303A  LEU*     2.9    35.5    +      -       +      +
    337A  ILE*     3.8    16.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 300 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9A  PRO*     3.6    34.7    -      -       +      +
     10A  LEU*     3.6    32.0    -      -       +      +
    296A  LEU*     2.7    26.8    +      -       -      +
    297A  THR*     3.6     5.3    -      -       -      -
    299A  ILE*     1.3    76.3    -      -       -      +
    301A  LEU*     1.3    68.2    +      -       +      +
    303A  LEU*     4.5     7.0    -      -       -      -
    304A  HIS*     3.3    33.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 301 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10A  LEU*     6.3     0.2    -      -       -      -
    297A  THR*     3.1    35.4    +      -       +      +
    298A  GLU*     3.4    24.7    +      -       -      +
    300A  THR*     1.3    78.4    -      -       +      +
    302A  GLY*     1.3    61.1    +      -       -      +
    304A  HIS*     4.2     2.1    -      -       -      +
    305A  ALA*     3.3    24.1    +      -       -      +
    329A  ASN*     5.7     3.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 302 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    258A  LEU*     3.7     9.9    -      -       -      -
    298A  GLU      3.1    13.6    +      -       -      -
    299A  ILE      3.7     3.1    -      -       -      -
    301A  LEU*     1.3    76.3    -      -       -      +
    303A  LEU*     1.3    58.4    +      -       -      +
    305A  ALA*     3.4     5.0    +      -       -      +
    306A  CYS*     2.9    34.8    +      -       -      +
    326A  LEU*     4.9     0.4    -      -       -      +
    329A  ASN*     4.8     3.8    -      -       -      +
    330A  ASN*     3.8    23.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 303 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7A  GLN      6.0     1.3    -      -       -      +
      8A  ASP*     5.4     4.9    -      -       -      +
      9A  PRO*     6.5     0.9    -      -       +      -
     12A  LEU*     3.9    25.3    -      -       +      +
     84A  ARG*     3.7    27.1    -      -       -      +
    255A  TRP*     3.9    23.2    -      -       +      -
    258A  LEU*     3.5    20.4    -      -       +      +
    262A  GLU*     3.5    21.8    -      -       -      +
    299A  ILE*     2.9    25.2    +      -       +      +
    300A  THR*     3.3     8.5    +      -       -      +
    302A  GLY*     1.3    76.4    -      -       -      +
    304A  HIS*     1.3    65.4    +      -       +      +
    306A  CYS*     3.3     4.2    +      -       -      +
    307A  LEU*     3.0    25.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 304 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8A  ASP*     4.6     2.2    -      -       -      -
      9A  PRO*     6.4     0.2    -      -       +      -
     10A  LEU*     3.3    54.0    +      -       +      +
     11A  VAL      4.6     0.2    +      -       -      -
     12A  LEU*     3.9    34.1    -      -       +      -
     15A  GLN*     5.2     4.9    -      -       +      +
    300A  THR*     3.3    23.7    +      -       +      +
    301A  LEU*     4.5     2.5    -      -       -      +
    303A  LEU*     1.3    84.2    -      -       +      +
    305A  ALA*     1.3    65.6    +      -       -      +
    307A  LEU*     3.5    14.4    +      -       +      +
    308A  GLN*     3.2    21.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 305 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    301A  LEU      3.3    19.8    +      -       -      +
    302A  GLY*     3.6     2.9    -      -       -      +
    303A  LEU      3.3     0.6    -      -       -      -
    304A  HIS*     1.3    75.4    -      -       -      +
    306A  CYS*     1.3    64.8    +      -       -      +
    308A  GLN*     3.1     8.7    +      -       -      +
    309A  LEU*     3.0    18.9    +      -       -      +
    326A  LEU*     3.5    33.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with CYS 306 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    254A  ALA*     3.6    30.3    -      -       -      -
    255A  TRP*     3.5    38.4    +      -       +      +
    258A  LEU*     4.1     2.5    -      -       -      -
    302A  GLY      2.9    15.3    +      -       -      +
    303A  LEU*     3.6     5.4    -      -       -      +
    305A  ALA*     1.3    77.1    -      -       -      +
    307A  LEU*     1.3    57.0    +      -       -      +
    309A  LEU*     3.2     4.7    +      -       -      +
    310A  GLY*     2.8    24.8    +      -       -      -
    326A  LEU*     3.8    13.0    -      -       -      +
    330A  ASN*     3.4    25.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 307 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12A  LEU*     4.0    15.0    -      -       +      -
     15A  GLN*     3.5    36.8    -      -       +      +
     16A  LEU*     4.0    26.5    -      -       +      -
     77A  VAL*     4.1    15.8    -      -       +      +
    255A  TRP*     3.7    10.2    -      -       +      -
    303A  LEU      3.0    15.0    +      -       -      +
    304A  HIS*     3.6    14.6    -      -       +      +
    305A  ALA      3.2     0.4    -      -       -      -
    306A  CYS*     1.3    73.9    -      -       -      +
    308A  GLN*     1.3    64.2    +      -       -      +
    310A  GLY*     3.1     3.1    +      -       -      -
    311A  ARG*     3.0    43.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 308 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    304A  HIS      3.2     9.9    +      -       -      +
    305A  ALA*     3.1    11.1    +      -       -      +
    307A  LEU*     1.3    82.3    -      -       -      +
    309A  LEU*     1.3    63.0    +      -       -      +
    311A  ARG*     3.2    11.7    +      -       -      +
    312A  LEU*     3.0    54.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 309 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    251A  TYR*     3.9    25.4    -      -       +      -
    254A  ALA*     5.6     2.5    -      -       +      -
    305A  ALA      3.0    12.7    +      -       -      +
    306A  CYS*     3.6     8.3    -      -       -      +
    308A  GLN*     1.3    77.3    -      -       -      +
    310A  GLY*     1.3    57.7    +      -       -      +
    312A  LEU*     3.2     8.2    +      -       +      +
    313A  LYS*     2.8    30.6    +      -       +      +
    318A  ALA*     4.2    12.6    -      -       +      -
    322A  MET*     3.6    39.0    -      -       +      +
    323A  VAL*     4.0    27.4    -      -       +      -
    326A  LEU*     3.6    26.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 310 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76A  SER*     3.7     1.8    -      -       -      -
     77A  VAL*     3.9    11.4    -      -       -      -
    251A  TYR*     3.3    30.4    -      -       -      -
    306A  CYS      2.8    11.2    +      -       -      -
    307A  LEU      3.1     4.9    +      -       -      -
    309A  LEU*     1.3    77.8    -      -       -      +
    311A  ARG*     1.3    59.2    +      -       -      +
    313A  LYS*     3.4     5.2    +      -       -      +
    314A  ASP*     3.2    26.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 311 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15A  GLN      3.0    25.5    +      -       -      -
     16A  LEU*     4.0     1.0    -      -       -      +
     17A  THR*     4.2    10.9    -      -       -      +
     20A  GLU*     2.9    42.2    +      -       -      -
     75A  SER*     4.5     3.2    +      -       -      -
     77A  VAL*     3.5    16.3    -      -       -      +
    307A  LEU*     3.0    33.8    +      -       +      +
    308A  GLN*     3.2    15.7    +      -       -      +
    310A  GLY*     1.3    73.6    -      -       -      +
    312A  LEU*     1.3    67.0    +      -       +      +
    314A  ASP*     3.3    17.5    +      -       -      +
    315A  GLN*     3.2    29.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 312 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    308A  GLN*     3.0    44.6    +      -       +      +
    309A  LEU*     3.6    11.2    -      -       +      +
    311A  ARG*     1.3    76.3    -      -       +      +
    313A  LYS*     1.3    63.0    +      -       -      +
    315A  GLN*     2.9    26.7    +      -       -      +
    317A  LYS*     2.9    46.6    +      -       +      +
    318A  ALA*     4.2     3.1    -      -       +      +
    322A  MET*     3.9    29.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 313 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65A  THR*     5.8     4.9    +      -       -      +
     76A  SER*     3.6    19.7    +      -       -      +
     79A  TYR*     5.8     3.2    -      -       -      -
    247A  ASN*     5.2     1.8    -      -       -      -
    248A  ASN*     3.0    31.4    +      -       -      +
    251A  TYR*     3.8    41.4    -      -       +      -
    309A  LEU*     2.8    16.8    +      -       +      +
    310A  GLY      3.5     7.4    -      -       -      +
    311A  ARG      3.2     0.2    -      -       -      -
    312A  LEU*     1.3    77.3    -      -       -      +
    314A  ASP*     1.3    57.7    +      -       -      +
    316A  ASP*     2.9    23.8    +      -       -      +
    318A  ALA*     3.8    21.5    -      -       +      +
    323A  VAL*     5.7     4.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 314 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74A  VAL      5.2     0.2    -      -       -      +
     75A  SER*     3.4    17.1    -      -       -      -
     76A  SER*     2.7    43.1    +      -       -      -
     77A  VAL      4.1     1.7    +      -       -      -
    310A  GLY      3.2    11.7    +      -       -      +
    311A  ARG*     3.3    15.9    +      -       -      +
    312A  LEU      3.3     0.6    -      -       -      -
    313A  LYS*     1.3    76.0    -      -       -      +
    315A  GLN*     1.3    59.6    +      -       +      +
    316A  ASP*     3.3     7.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 315 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    311A  ARG*     3.2    25.7    -      -       -      +
    312A  LEU*     2.9    19.4    +      -       -      +
    314A  ASP*     1.3    80.0    -      -       +      +
    316A  ASP*     1.3    71.5    +      -       -      +
    317A  LYS*     3.3    44.5    +      -       +      +
----------------------------------------------------------
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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