Contacts of the helix formed by residues 247 - 274 (chain A) in PDB entry 3W5D


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 THR 247 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    245A  ASP      3.8     2.2    +      -       -      +
    246A  LYS*     1.3    71.7    -      -       -      +
    248A  PRO*     1.4    75.6    -      -       -      +
    249A  LEU*     4.4     0.9    -      -       -      +
    250A  GLN*     2.9    29.1    +      -       -      +
    251A  GLN*     2.9    19.8    +      -       -      +
    337A  PRO*     3.3    37.4    +      -       +      +
    338A  SER*     5.1     0.9    -      -       -      -
    340A  GLU*     2.9    20.3    +      -       -      -
    341A  THR*     3.3    12.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with PRO 248 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246A  LYS      4.3     2.0    -      -       -      +
    247A  THR*     1.4    83.2    -      -       -      +
    249A  LEU*     1.3    53.7    +      -       -      -
    251A  GLN*     3.4    13.0    +      -       +      +
    252A  LYS*     2.9    42.4    +      -       -      +
    340A  GLU*     3.0    21.1    -      -       -      +
    341A  THR*     4.3    15.0    -      -       +      +
    344A  CYS*     4.5     8.1    -      -       +      -
    697A  ILE*     5.6     3.6    -      -       +      -
    822A  ARG*     3.2    21.1    -      -       -      +
    824A  PRO*     4.0    26.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 249 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    247A  THR*     5.5     0.7    -      -       -      +
    248A  PRO*     1.3    74.1    -      -       -      +
    250A  GLN*     1.3    57.2    +      -       +      +
    252A  LYS*     4.2     7.4    -      -       -      +
    253A  LEU*     2.7    67.5    +      -       +      +
    315A  ILE*     4.6    11.4    -      -       +      -
    319A  LEU*     6.0     2.0    -      -       +      -
    340A  GLU*     3.0    27.0    +      -       +      +
    754A  TYR*     4.6     9.0    -      -       +      -
    757A  MET*     3.6    34.8    -      -       +      -
    761A  ILE*     3.8    21.3    -      -       +      -
    828A  LEU*     4.3    14.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 250 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246A  LYS*     3.4    29.4    -      -       +      +
    247A  THR*     2.9    40.1    +      -       -      +
    249A  LEU*     1.3    79.7    -      -       +      +
    251A  GLN*     1.3    61.6    +      -       -      +
    253A  LEU*     3.5     6.4    +      -       +      +
    254A  ASP*     2.8    34.7    +      -       -      +
    337A  PRO*     3.4    28.9    -      -       +      +
   1002A  PTY      6.0     4.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 251 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    245A  ASP*     4.6     8.8    -      -       -      +
    246A  LYS*     2.7    42.5    +      -       +      +
    247A  THR      2.9    11.3    +      -       -      +
    248A  PRO*     3.6    12.1    -      -       +      +
    250A  GLN*     1.3    75.3    -      -       -      +
    252A  LYS*     1.3    59.0    +      -       +      +
    254A  ASP*     3.0    12.1    +      -       -      +
    255A  GLU*     3.0    27.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 252 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    248A  PRO*     2.9    32.5    +      -       -      +
    249A  LEU*     4.0     6.2    -      -       -      +
    251A  GLN*     1.3    76.5    -      -       +      +
    253A  LEU*     1.3    58.6    +      -       -      +
    255A  GLU*     3.2    22.8    +      -       -      +
    256A  PHE*     3.0    26.9    +      -       -      +
    754A  TYR*     3.6    15.8    +      -       -      -
    822A  ARG*     3.4    26.7    -      -       -      +
    824A  PRO      3.3    18.8    +      -       -      +
    825A  LYS*     4.9     2.9    -      -       -      +
    826A  GLU      3.2    28.8    +      -       -      +
    827A  PRO*     4.4     7.9    -      -       +      -
    828A  LEU*     4.2    23.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 253 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61A  LEU*     6.0     0.5    -      -       -      +
    249A  LEU*     2.7    46.4    +      -       +      +
    250A  GLN*     3.9     5.8    -      -       +      +
    252A  LYS*     1.3    73.4    -      -       -      +
    254A  ASP*     1.3    58.3    +      -       -      +
    256A  PHE*     3.3    18.1    +      -       +      +
    257A  GLY*     3.0    23.2    +      -       -      -
    311A  LEU*     5.1    11.4    -      -       +      -
    315A  ILE*     3.9    24.5    -      -       +      -
    761A  ILE*     4.8    12.6    -      -       +      -
    765A  ILE*     5.8     1.8    -      -       +      -
    828A  LEU*     3.8    25.4    -      -       +      -
   1002A  PTY      6.0     3.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 254 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59A  ASP*     4.7    11.3    -      -       -      +
    246A  LYS*     3.2    37.2    +      -       -      +
    250A  GLN*     2.8    27.6    +      -       -      +
    251A  GLN*     3.0     9.6    +      -       -      +
    253A  LEU*     1.3    75.1    -      -       -      +
    255A  GLU*     1.3    63.9    +      -       -      +
    257A  GLY*     3.4     3.0    +      -       -      +
    258A  GLU*     3.3    25.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 255 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    251A  GLN      3.0    11.2    +      -       -      +
    252A  LYS*     3.2    27.9    +      -       -      +
    254A  ASP*     1.3    74.8    -      -       -      +
    256A  PHE*     1.3    59.7    +      -       -      +
    258A  GLU*     3.3     8.6    +      -       -      +
    259A  GLN*     3.0    51.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 256 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61A  LEU*     5.3     4.7    -      -       +      -
    252A  LYS      3.0    13.2    +      -       -      +
    253A  LEU*     3.5    21.3    -      -       +      +
    255A  GLU*     1.3    77.5    -      -       -      +
    257A  GLY*     1.3    56.0    +      -       -      +
    259A  GLN*     4.3     7.4    -      -       +      -
    260A  LEU*     2.7    77.0    +      -       +      +
    306A  ALA      5.3     1.1    -      -       -      -
    308A  PRO*     4.4    13.2    -      -       +      -
    311A  LEU*     5.9     1.8    -      -       +      -
    765A  ILE*     3.6    50.0    -      -       +      -
    768A  ASN*     6.1     0.2    -      -       -      -
    828A  LEU*     5.9     3.1    -      -       +      -
    829A  ILE*     6.5     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 257 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59A  ASP*     6.1     1.1    -      -       -      -
     60A  LEU*     4.7     7.5    -      -       -      +
     61A  LEU*     3.8    30.7    -      -       -      +
    253A  LEU      3.0    13.9    +      -       -      -
    254A  ASP*     3.4     5.4    +      -       -      -
    255A  GLU      3.2     0.4    -      -       -      -
    256A  PHE*     1.3    75.6    -      -       -      +
    258A  GLU*     1.3    55.8    +      -       -      +
    261A  SER*     3.0    30.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 258 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60A  LEU*     3.2    27.9    -      -       -      +
    254A  ASP      3.3    16.1    +      -       -      +
    255A  GLU*     3.3     8.9    +      -       -      +
    257A  GLY*     1.3    73.1    -      -       -      +
    259A  GLN*     1.3    66.2    -      -       -      +
    261A  SER*     3.2     8.6    +      -       -      -
    262A  LYS*     2.9    28.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 259 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    255A  GLU*     3.0    40.7    +      -       +      +
    256A  PHE*     3.8     8.7    -      -       +      +
    258A  GLU*     1.3    82.4    -      -       -      +
    260A  LEU*     1.3    51.1    +      -       -      +
    262A  LYS*     3.1    14.6    +      -       -      +
    263A  VAL*     2.8    41.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 260 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61A  LEU*     4.1     9.4    -      -       +      -
    256A  PHE*     2.7    56.7    +      -       +      +
    257A  GLY      4.0     1.8    -      -       -      +
    259A  GLN*     1.3    68.5    -      -       -      +
    261A  SER*     1.3    57.0    +      -       -      +
    263A  VAL*     3.3    17.6    -      -       +      +
    264A  ILE*     2.7    47.2    +      -       +      +
    306A  ALA*     3.5    42.6    -      -       +      +
    307A  ILE*     3.8    16.8    -      -       +      -
    308A  PRO*     4.2     4.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 261 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60A  LEU*     3.1    38.3    -      -       -      +
     61A  LEU*     4.8     4.4    -      -       -      +
     64A  ILE*     4.6     9.8    -      -       -      +
    257A  GLY      3.0    15.8    +      -       -      -
    258A  GLU      3.2     9.6    -      -       -      -
    260A  LEU*     1.3    77.8    -      -       -      +
    262A  LYS*     1.3    62.5    +      -       -      +
    264A  ILE*     3.3     9.6    +      -       -      +
    265A  SER*     3.1    23.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 262 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    258A  GLU      2.9    13.8    +      -       -      +
    259A  GLN*     3.3    18.4    -      -       -      +
    261A  SER*     1.3    76.2    +      -       -      +
    263A  VAL*     1.3    59.8    +      -       +      +
    265A  SER*     2.9    20.4    +      -       -      +
    266A  LEU*     3.2    44.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 263 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    259A  GLN*     2.8    24.4    +      -       +      +
    260A  LEU*     3.0    20.4    +      -       +      +
    262A  LYS*     1.3    75.4    -      -       +      +
    264A  ILE*     1.3    68.7    +      -       +      +
    266A  LEU*     3.0    15.2    +      -       -      +
    267A  ILE*     3.0    38.7    +      -       +      +
    306A  ALA*     6.4     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 264 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  ILE*     4.4    18.4    -      -       +      -
    260A  LEU*     2.7    27.3    +      -       +      +
    261A  SER*     3.6     8.3    -      -       -      +
    263A  VAL*     1.3    75.8    -      -       +      +
    265A  SER*     1.3    65.4    +      -       -      +
    267A  ILE*     3.2     3.8    +      -       +      -
    268A  CYS*     3.2    23.1    +      -       -      -
    299A  ALA      5.8     0.2    -      -       -      +
    302A  LEU*     3.7    25.2    -      -       +      +
    303A  ALA*     4.1    18.8    -      -       +      -
    306A  ALA*     3.7    32.5    -      -       +      -
    307A  ILE*     3.8    24.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 265 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    261A  SER      3.1    13.7    +      -       -      -
    262A  LYS*     2.9    23.6    +      -       -      +
    264A  ILE*     1.3    78.2    -      -       -      +
    266A  LEU*     1.3    66.2    +      -       -      +
    268A  CYS*     3.2    11.9    +      -       -      +
    269A  VAL*     3.1    25.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 266 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    262A  LYS*     3.2    46.2    +      -       +      +
    263A  VAL*     3.0    11.6    +      -       -      +
    265A  SER*     1.3    83.8    +      -       -      +
    267A  ILE*     1.3    54.4    +      -       +      +
    269A  VAL*     3.1    16.1    +      -       +      +
    270A  ALA*     2.7    35.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 267 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    263A  VAL*     3.0    32.9    +      -       +      +
    264A  ILE*     3.2     9.6    +      -       +      +
    266A  LEU*     1.3    77.2    -      -       +      +
    268A  CYS*     1.3    57.6    +      -       -      +
    270A  ALA*     3.3     7.9    +      -       -      +
    271A  VAL*     2.9    29.6    +      -       -      +
    302A  LEU*     3.5    25.8    -      -       +      -
    306A  ALA*     6.3     1.1    -      -       +      -
    772A  VAL*     3.6    30.3    -      -       +      -
    776A  PHE*     3.8    24.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 268 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    264A  ILE*     3.2    23.4    +      -       -      -
    265A  SER*     3.3    11.9    -      -       -      +
    266A  LEU      3.2     0.2    -      -       -      -
    267A  ILE*     1.3    73.0    -      -       -      +
    269A  VAL*     1.3    60.8    +      -       +      +
    271A  VAL*     3.2    10.0    +      -       -      +
    272A  TRP*     3.0    24.1    +      -       -      +
    298A  ILE*     6.1     1.1    -      -       -      -
    299A  ALA*     4.3    24.2    -      -       -      -
    302A  LEU*     3.8    18.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 269 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    265A  SER*     3.1    16.7    +      -       -      +
    266A  LEU*     3.1    17.8    +      -       +      +
    268A  CYS*     1.3    71.9    -      -       +      +
    270A  ALA*     1.3    56.5    +      -       -      +
    272A  TRP*     2.8    19.7    +      -       +      +
    273A  LEU*     2.7    54.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 270 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    266A  LEU      2.7    16.5    +      -       -      +
    267A  ILE*     3.4    14.8    -      -       +      +
    269A  VAL*     1.3    74.4    -      -       -      +
    271A  VAL*     1.3    61.5    +      -       -      +
    273A  LEU*     3.6     9.1    +      -       -      +
    274A  ILE*     3.2    30.6    +      -       +      +
    776A  PHE*     4.0    19.1    -      -       +      -
   1004A  PTY      5.5     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 271 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    267A  ILE      2.9    20.0    +      -       -      +
    268A  CYS*     3.6     9.0    -      -       -      +
    269A  VAL      3.2     0.2    -      -       -      -
    270A  ALA*     1.3    72.8    -      -       -      +
    272A  TRP*     1.3    65.4    +      -       -      +
    274A  ILE*     3.8     7.6    +      -       +      +
    275A  ASN*     3.6    25.0    +      -       -      +
    294A  TYR*     5.7     3.1    -      -       +      -
    295A  TYR*     4.8    15.5    +      -       +      -
    298A  ILE*     3.3    36.1    -      -       +      -
    302A  LEU*     4.6     5.2    -      -       +      -
    776A  PHE*     3.9    24.7    -      -       +      -
    779A  ALA*     4.7    13.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with TRP 272 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    268A  CYS      3.0    11.5    +      -       -      +
    269A  VAL*     2.8    23.0    +      -       +      +
    271A  VAL*     1.3    72.1    -      -       -      +
    273A  LEU*     1.3    87.9    +      -       +      +
    274A  ILE      3.0     3.6    -      -       -      -
    275A  ASN*     2.7    28.2    +      -       -      +
    276A  ILE*     3.3    25.2    +      -       +      +
    279A  PHE*     4.2    33.2    -      +       -      -
    295A  TYR*     4.3    25.1    -      +       +      -
----------------------------------------------------------
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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  VAL*     2.7    36.3    +      -       +      +
    270A  ALA*     4.2     7.4    -      -       -      +
    272A  TRP*     1.3    89.4    -      -       +      +
    274A  ILE*     1.3    58.9    +      -       -      +
    275A  ASN      3.3     0.2    -      -       -      -
    276A  ILE*     3.5    40.2    +      -       +      +
   1004A  PTY      3.1    31.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 274 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    270A  ALA*     3.2    20.4    +      -       +      +
    271A  VAL*     4.1     7.9    -      -       +      +
    272A  TRP      2.9     1.4    +      -       -      -
    273A  LEU*     1.3    78.0    -      -       -      +
    275A  ASN*     1.3    73.9    +      -       -      +
    276A  ILE      3.5     0.6    +      -       -      -
    277A  GLY*     4.7     2.6    +      -       -      -
    776A  PHE*     3.7    27.8    -      -       +      -
    779A  ALA      5.5     0.7    -      -       -      +
    780A  ALA*     3.9    26.7    -      -       +      -
   1004A  PTY      3.7    62.2    +      -       +      +
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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