Contacts of the helix formed by residues 252 - 283 (chain A) in PDB entry 3PM0


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 252 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    247A  LEU*     2.6    47.6    +      -       +      +
    250A  PHE*     3.0    25.1    +      -       +      -
    251A  PRO*     1.3    73.6    -      -       -      +
    253A  PRO*     1.3    76.6    -      -       +      +
    254A  VAL*     2.6    36.1    +      -       +      +
    255A  ARG*     2.7    13.5    +      -       -      +
    256A  THR*     2.9    25.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with PRO 253 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    233A  ARG*     4.7    13.5    +      -       -      +
    252A  ASN*     1.3    88.6    -      -       +      +
    254A  VAL*     1.3    61.0    +      -       +      +
    256A  THR*     3.2     8.5    +      -       -      +
    257A  VAL*     2.8    32.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 254 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    240A  LEU*     4.0    17.3    -      -       +      +
    241A  VAL*     3.6    39.5    -      -       +      +
    247A  LEU*     3.8    27.6    -      -       +      -
    248A  GLN*     3.1    15.1    +      -       -      +
    252A  ASN*     2.6    19.4    +      -       +      +
    253A  PRO*     1.3    74.0    -      -       +      +
    255A  ARG*     1.3    60.5    +      -       -      +
    257A  VAL*     3.4     8.3    -      -       +      +
    258A  PHE*     3.4    15.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 255 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    247A  LEU      3.5     5.8    -      -       -      +
    248A  GLN*     3.4    39.8    +      -       -      +
    249A  TYR      5.6     0.6    -      -       -      -
    250A  PHE*     3.3    24.3    -      -       -      +
    251A  PRO*     3.8    36.7    -      -       -      +
    252A  ASN*     2.7    19.7    +      -       -      +
    254A  VAL*     1.3    72.5    -      -       -      +
    256A  THR*     1.3    68.0    +      -       -      +
    258A  PHE      3.6     0.2    +      -       -      -
    259A  ARG*     2.7    79.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 256 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    233A  ARG*     5.8     1.3    -      -       -      +
    252A  ASN      2.9    17.1    +      -       -      -
    253A  PRO*     3.3    12.8    -      -       -      +
    255A  ARG*     1.3    83.8    +      -       -      +
    257A  VAL*     1.3    63.2    +      -       -      +
    259A  ARG*     3.4     5.8    +      -       -      +
    260A  GLU*     3.1    48.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 257 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    230A  GLU*     3.6    28.7    -      -       +      +
    233A  ARG*     3.6    42.6    -      -       +      +
    234A  THR*     3.7     5.4    -      -       -      +
    241A  VAL*     3.7    21.1    -      -       +      -
    253A  PRO      2.8    19.0    +      -       -      +
    254A  VAL*     3.4    16.4    -      -       -      +
    256A  THR*     1.3    72.5    -      -       -      +
    258A  PHE*     1.3    56.3    +      -       -      +
    260A  GLU*     3.2    10.6    +      -       -      +
    261A  PHE*     2.7    34.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 258 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121A  ALA*     5.5     5.6    -      -       +      -
    122A  SER*     4.0    26.9    -      -       -      -
    125A  VAL*     4.6     6.5    -      -       +      -
    234A  THR*     4.3     1.8    -      -       +      -
    241A  VAL*     3.4    27.8    -      -       +      -
    248A  GLN*     3.6    28.9    -      -       +      +
    254A  VAL      3.4    14.1    +      -       -      +
    255A  ARG      4.1     0.2    -      -       -      +
    256A  THR      3.4     0.8    -      -       -      -
    257A  VAL*     1.3    82.1    -      -       -      +
    259A  ARG*     1.3    61.2    +      -       +      +
    261A  PHE*     3.0    18.5    -      +       -      +
    262A  GLU*     2.8    63.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 259 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    248A  GLN*     4.9     5.5    +      -       -      +
    255A  ARG*     2.7    75.6    +      -       -      +
    256A  THR*     3.8     5.8    -      -       -      +
    258A  PHE*     1.3    80.3    -      -       +      +
    260A  GLU*     1.3    62.7    +      -       +      +
    262A  GLU*     3.4    15.2    +      -       -      +
    263A  GLN*     3.1    23.4    +      -       -      +
    266A  ARG*     5.5     0.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 260 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227A  HIS*     5.8     3.0    -      -       +      +
    230A  GLU*     3.1    40.8    -      -       +      +
    233A  ARG*     3.9     6.4    +      -       -      -
    256A  THR*     3.1    29.5    +      -       +      +
    257A  VAL*     3.5    16.1    -      -       -      +
    259A  ARG*     1.3    76.7    -      -       +      +
    261A  PHE*     1.3    52.3    -      -       -      +
    263A  GLN*     3.0    11.4    -      -       -      +
    264A  LEU*     2.8    38.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 261 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122A  SER*     3.6    21.3    -      -       -      -
    125A  VAL*     4.1     8.1    -      -       +      -
    126A  VAL*     3.9    18.2    -      -       +      -
    230A  GLU*     3.8     9.4    -      -       -      +
    231A  PHE*     3.7    28.0    -      +       -      -
    234A  THR*     3.3    43.3    -      -       +      +
    235A  VAL*     4.0    10.1    -      -       +      -
    257A  VAL      2.7    14.8    +      -       -      +
    258A  PHE*     3.0    22.0    -      +       -      +
    260A  GLU*     1.3    76.9    -      -       -      +
    262A  GLU*     1.3    66.6    +      -       -      +
    264A  LEU*     3.3    10.2    +      -       +      +
    265A  ASN*     2.9    50.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 262 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125A  VAL*     4.2    28.5    -      -       +      +
    258A  PHE*     2.8    56.8    +      -       +      +
    259A  ARG*     3.8    14.6    -      -       -      +
    261A  PHE*     1.3    73.2    -      -       -      +
    263A  GLN*     1.3    57.7    +      -       -      +
    265A  ASN*     3.9     1.4    -      -       -      +
    266A  ARG*     2.9    51.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 263 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    259A  ARG      3.1    14.2    +      -       -      +
    260A  GLU*     3.0    17.7    -      -       -      +
    262A  GLU*     1.3    78.4    -      -       -      +
    264A  LEU*     1.3    55.5    +      -       -      +
    266A  ARG*     3.3    28.9    +      -       -      +
    267A  ASN*     3.0    53.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 264 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    224A  LEU*     4.9     1.3    -      -       -      +
    227A  HIS*     3.5    48.5    -      -       +      +
    230A  GLU*     3.9    12.8    -      -       +      -
    231A  PHE*     4.0    13.5    -      -       +      +
    260A  GLU*     2.8    12.9    +      -       +      +
    261A  PHE*     3.4    24.0    -      -       +      +
    263A  GLN*     1.3    71.6    -      -       -      +
    265A  ASN*     1.3    74.0    +      -       -      +
    267A  ASN*     3.1    12.5    +      -       -      +
    268A  PHE*     2.9    35.6    +      -       +      +
    800A  BHF      3.7    33.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 265 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125A  VAL*     4.1    22.0    -      -       +      +
    126A  VAL*     4.0    15.6    -      -       -      +
    127A  SER      4.9     2.1    +      -       -      +
    231A  PHE*     3.5    21.0    -      -       -      -
    261A  PHE*     2.9    64.0    +      -       -      +
    262A  GLU      4.0     2.7    -      -       -      +
    264A  LEU*     1.3    78.7    -      -       -      +
    266A  ARG*     1.3    65.8    +      -       -      +
    268A  PHE*     3.8     4.7    -      -       -      +
    269A  SER*     3.0    30.3    +      -       -      -
    800A  BHF      4.2     5.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 266 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    259A  ARG      5.5     0.4    +      -       -      -
    262A  GLU*     2.9    44.3    +      -       -      +
    263A  GLN*     3.3    43.1    +      -       -      +
    265A  ASN*     1.3    78.1    -      -       -      +
    267A  ASN*     1.3    61.8    +      -       -      +
    269A  SER*     3.7     4.4    +      -       -      -
    270A  ASN*     2.8    41.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 267 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    223A  GLU*     4.7    13.3    +      -       -      +
    224A  LEU*     4.0    16.2    -      -       +      +
    227A  HIS*     5.3     5.1    +      -       -      -
    263A  GLN*     3.0    40.6    +      -       -      +
    264A  LEU*     3.1    10.7    +      -       -      +
    266A  ARG*     1.3    80.7    -      -       -      +
    268A  PHE*     1.3    59.5    +      -       -      +
    270A  ASN*     3.5     8.5    +      -       -      +
    271A  PHE*     3.0    28.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 268 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    224A  LEU*     3.2    45.3    -      -       +      -
    225A  LEU*     3.9    22.0    -      -       +      -
    228A  ASN*     5.2     0.2    -      -       -      -
    264A  LEU*     2.9    21.0    +      -       +      +
    265A  ASN*     3.8     8.5    -      -       -      +
    266A  ARG      3.4     0.2    -      -       -      -
    267A  ASN*     1.3    74.7    -      -       -      +
    269A  SER*     1.3    65.9    +      -       -      +
    271A  PHE*     3.3     5.5    +      +       -      +
    272A  ILE*     3.0    28.6    +      -       +      +
    325A  THR*     4.2    23.1    -      -       +      -
    328A  PHE*     3.5    28.7    -      +       -      -
    329A  GLY*     3.9    13.9    -      -       -      -
    332A  GLN*     4.0     6.3    -      -       -      -
    800A  BHF      3.8    33.7    -      +       +      -
----------------------------------------------------------
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Residues in contact with SER 269 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127A  SER*     4.1     9.2    +      -       -      -
    128A  GLY*     3.9    22.3    +      -       -      -
    265A  ASN*     3.0    16.1    +      -       -      +
    266A  ARG*     4.0     5.6    -      -       -      -
    268A  PHE*     1.3    79.4    -      -       -      +
    270A  ASN*     1.3    53.0    +      -       -      +
    272A  ILE*     3.4     1.4    +      -       -      +
    273A  LEU*     2.7    46.7    +      -       -      +
    325A  THR*     4.8    12.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 270 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    266A  ARG*     2.8    34.4    +      -       -      +
    267A  ASN*     3.9     8.5    +      -       -      +
    268A  PHE      3.3     0.4    -      -       -      -
    269A  SER*     1.3    77.8    -      -       -      +
    271A  PHE*     1.3    57.2    +      -       -      +
    273A  LEU*     3.6    14.1    -      -       -      +
    274A  ASP*     2.9    32.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 271 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210A  PHE*     3.7    31.2    -      +       -      -
    214A  TYR*     3.5    37.7    -      +       -      -
    220A  GLU*     6.1     0.9    -      -       -      -
    221A  PHE*     4.3    18.2    -      +       -      -
    224A  LEU*     3.9    21.5    -      -       +      -
    267A  ASN      3.0    19.1    +      -       -      +
    268A  PHE*     3.3     8.7    -      +       -      +
    270A  ASN*     1.3    77.7    -      -       -      +
    272A  ILE*     1.3    69.2    +      -       +      +
    274A  ASP*     3.9     4.6    -      -       -      +
    275A  LYS*     3.4    31.8    +      -       +      +
    328A  PHE*     3.8    17.0    -      +       -      -
----------------------------------------------------------
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Residues in contact with ILE 272 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210A  PHE*     4.1    11.9    -      -       +      -
    268A  PHE*     3.0    16.8    +      -       +      +
    269A  SER      4.1     2.2    -      -       -      +
    271A  PHE*     1.3    88.5    -      -       +      +
    273A  LEU*     1.3    57.1    +      -       -      +
    274A  ASP      3.3     0.2    -      -       -      -
    275A  LYS*     3.4     6.3    +      -       -      +
    276A  PHE*     2.7    31.5    +      -       -      +
    293A  MET*     3.8     5.1    -      -       +      +
    321A  PRO*     3.7    16.4    -      -       +      +
    324A  ILE*     3.1    34.5    -      -       +      +
    325A  THR*     3.3    39.9    -      -       +      +
    328A  PHE*     4.2    17.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 273 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    269A  SER*     2.7    27.4    +      -       -      +
    270A  ASN*     3.6    15.7    -      -       -      +
    272A  ILE*     1.3    76.1    -      -       -      +
    274A  ASP*     1.3    66.4    +      -       -      +
    276A  PHE*     3.0    15.2    +      -       +      +
    277A  LEU*     2.9    49.3    +      -       +      +
    321A  PRO*     4.9    13.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 274 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    270A  ASN      2.9    17.7    +      -       -      +
    271A  PHE*     3.9     5.6    -      -       -      +
    273A  LEU*     1.3    78.2    -      -       -      +
    275A  LYS*     1.3    63.5    +      -       -      +
    277A  LEU*     3.4     8.0    +      -       -      +
    278A  ARG*     2.5    67.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 275 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210A  PHE*     3.4    50.9    +      -       +      +
    212A  CYS*     4.2    14.7    -      -       -      +
    214A  TYR*     3.4    27.9    +      -       -      -
    271A  PHE*     3.4    23.5    +      -       +      +
    272A  ILE*     3.4     7.7    +      -       -      +
    273A  LEU      3.2     0.4    -      -       -      -
    274A  ASP*     1.3    80.0    -      -       -      +
    276A  PHE*     1.3    62.6    +      -       -      +
    278A  ARG*     3.2    24.4    +      -       -      +
    279A  HIS*     2.9    40.3    +      -       +      +
    293A  MET*     4.0    10.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 276 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    272A  ILE      2.7    22.3    +      -       -      +
    273A  LEU*     3.0    12.8    +      -       +      +
    275A  LYS*     1.3    73.3    -      -       -      +
    277A  LEU*     1.3    84.7    +      -       +      +
    279A  HIS*     3.3     2.4    +      -       -      +
    280A  CYS*     2.9    52.2    +      -       -      +
    293A  MET*     3.6    22.9    -      -       +      +
    297A  ILE*     3.9    17.9    -      -       +      -
    317A  LEU*     3.9    24.7    -      -       +      -
    320A  VAL*     3.9    12.8    -      -       +      -
    321A  PRO*     3.5    33.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 277 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    273A  LEU*     2.9    37.5    +      -       +      +
    274A  ASP*     3.9     6.5    -      -       -      +
    275A  LYS      3.4     0.2    -      -       -      -
    276A  PHE*     1.3    93.4    -      -       +      +
    278A  ARG*     1.3    57.9    +      -       +      +
    280A  CYS*     3.6     6.1    +      -       +      +
    281A  GLU*     3.0    43.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 278 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    274A  ASP*     2.5    48.1    +      -       -      +
    275A  LYS*     3.2    31.8    +      -       -      +
    276A  PHE      3.1     0.6    -      -       -      -
    277A  LEU*     1.3    77.3    -      -       +      +
    279A  HIS*     1.3    69.8    +      -       -      +
    281A  GLU*     3.2    16.8    +      -       -      +
    282A  SER*     3.0    29.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 279 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210A  PHE*     3.3    21.9    +      -       +      -
    275A  LYS*     2.9    38.9    +      -       +      +
    276A  PHE      3.9     0.4    -      -       -      +
    278A  ARG*     1.3    79.6    -      -       +      +
    280A  CYS*     1.3    63.1    +      -       -      +
    282A  SER*     3.8     4.1    -      -       -      +
    283A  LEU*     2.9    29.1    +      -       -      +
    290A  ARG*     5.6     0.6    +      -       -      -
    291A  ASP*     2.5    30.2    +      -       -      -
    293A  MET*     3.3    35.8    -      -       +      +
    294A  ASP*     3.5    25.1    -      -       -      +
    297A  ILE*     3.7     7.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 280 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    276A  PHE*     2.9    45.3    +      -       +      +
    277A  LEU*     3.7     9.0    -      -       +      +
    279A  HIS*     1.3    79.6    -      -       -      +
    281A  GLU*     1.3    60.6    +      -       +      +
    283A  LEU*     3.5    15.8    +      -       -      +
    297A  ILE*     3.1    40.2    -      -       +      -
    301A  GLU*     4.9     6.9    -      -       -      +
    317A  LEU*     4.7     9.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 281 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    277A  LEU*     3.0    37.6    +      -       -      +
    278A  ARG*     3.2    16.6    +      -       -      +
    280A  CYS*     1.3    77.3    -      -       +      +
    282A  SER*     1.3    60.7    +      -       -      +
    283A  LEU      3.7     1.4    +      -       -      -
    284A  ARG*     4.1    16.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 282 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    278A  ARG*     3.0    18.2    +      -       -      +
    279A  HIS*     4.2     4.0    -      -       -      -
    281A  GLU*     1.3    75.4    -      -       -      +
    283A  LEU*     1.3    60.4    +      -       -      +
    284A  ARG*     3.0    30.9    +      -       -      +
    287A  ALA*     4.3     5.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 283 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    279A  HIS      2.9    13.1    +      -       -      +
    280A  CYS*     3.7    13.0    -      -       -      +
    281A  GLU      3.4     2.5    -      -       -      -
    282A  SER*     1.3    75.2    -      -       -      +
    284A  ARG*     1.3    62.1    +      -       -      +
    287A  ALA*     3.8    22.9    -      -       +      +
    288A  ALA      4.5     1.8    -      -       -      +
    289A  PRO*     4.3    11.7    -      -       +      -
    294A  ASP*     3.3    55.2    -      -       +      +
    297A  ILE*     4.1    12.3    -      -       +      -
    298A  LEU*     4.0    27.8    -      -       +      +
    301A  GLU*     4.6    13.8    -      -       -      +
----------------------------------------------------------
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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