Contacts of the helix formed by residues 241 - 266 (chain A) in PDB entry 3C6G


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 GLY 241 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225A  SER*     5.7     0.7    -      -       -      -
    240A  PHE*     1.3    75.5    -      -       -      +
    242A  LYS*     1.3    64.5    +      -       -      -
    243A  HIS*     3.2     6.5    -      -       -      -
    244A  GLN*     3.1    15.8    +      -       -      +
    245A  GLN*     3.3     9.9    +      -       -      +
      1D  GLC      4.9     2.2    -      -       -      -
      6D  GLC      4.2     2.2    +      -       -      -
      7D  GLC      3.6    25.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 242 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2A  UNX      3.9    11.5    -      -       -      -
    220A  LEU*     3.5    33.2    -      -       +      +
    223A  SER*     3.3    27.6    +      -       -      +
    225A  SER*     3.8    23.6    +      -       -      +
    226A  VAL*     5.5     2.2    -      -       +      -
    241A  GLY*     1.3    70.5    -      -       -      -
    243A  HIS*     1.3    58.1    +      -       -      +
    245A  GLN*     3.6    14.0    +      -       -      +
    246A  LEU*     3.1    26.5    +      -       -      +
    485A  LEU*     6.3     1.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 243 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225A  SER*     4.7    10.0    -      -       -      +
    226A  VAL*     5.1     9.2    -      -       +      -
    229A  TYR*     4.1    21.3    -      +       +      -
    235A  ILE*     3.0    46.0    +      -       +      +
    236A  GLY*     4.0     7.0    -      -       -      -
    238A  LEU*     3.2    16.9    +      -       +      -
    240A  PHE      3.0    27.6    -      -       -      -
    241A  GLY*     3.7     5.8    -      -       -      -
    242A  LYS*     1.3    78.4    +      -       -      +
    244A  GLN*     1.3    78.1    +      -       +      +
    246A  LEU*     3.3     7.0    +      -       -      +
    247A  PHE*     3.1    46.9    +      +       +      -
----------------------------------------------------------
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Residues in contact with GLN 244 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    236A  GLY*     3.0    28.7    +      -       -      -
    238A  LEU      3.3    15.4    +      -       -      +
    239A  PRO*     3.3    28.5    -      -       -      +
    241A  GLY      3.1     8.3    +      -       -      +
    243A  HIS*     1.3    95.2    +      -       +      +
    245A  GLN*     1.3    68.2    +      -       -      +
    247A  PHE*     3.3    18.0    +      -       -      +
    248A  ARG*     3.0    27.1    +      -       -      +
    117B  LYS*     4.7    12.9    +      -       -      +
      6D  GLC      4.9     8.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 245 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216A  GLU*     2.6    33.5    +      -       -      +
    220A  LEU*     3.8    28.0    -      -       +      +
    241A  GLY      3.3     9.4    +      -       -      +
    242A  LYS*     3.6    16.1    -      -       -      +
    244A  GLN*     1.3    78.7    -      -       -      +
    246A  LEU*     1.3    54.7    -      -       -      +
    248A  ARG*     3.6     8.6    +      -       -      +
    249A  ASN*     2.9    42.2    +      -       -      +
      6D  GLC      5.5     2.5    +      -       -      +
      7D  GLC      6.2     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 246 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114A  LEU*     3.6    33.2    -      -       +      -
    118A  MET*     3.9    17.0    -      -       +      -
    217A  ASN*     3.3    37.5    +      -       +      +
    220A  LEU*     3.8    22.6    -      -       +      +
    226A  VAL*     3.8    28.5    -      -       +      -
    242A  LYS      3.1    15.2    +      -       -      +
    243A  HIS*     3.5     7.2    -      -       -      +
    244A  GLN      3.2     0.6    -      -       -      -
    245A  GLN*     1.3    77.5    -      -       -      +
    247A  PHE*     1.3    59.6    +      -       +      +
    249A  ASN      3.4     0.3    +      -       -      -
    250A  ALA*     2.9    24.1    +      -       -      +
    701A  VD3      4.3     7.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 247 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114A  LEU*     3.7    24.2    -      -       +      -
    117A  LYS*     3.3    41.3    -      -       +      -
    118A  MET*     3.6    11.4    -      -       +      +
    229A  TYR*     3.5    43.1    -      +       -      -
    236A  GLY*     5.1     1.8    -      -       -      -
    243A  HIS*     3.1    36.1    +      +       +      +
    244A  GLN*     4.0    22.4    -      -       -      +
    246A  LEU*     1.3    76.1    -      -       +      +
    248A  ARG*     1.3    65.4    +      -       -      +
    250A  ALA*     3.4     6.7    +      -       -      +
    251A  ALA*     3.1    22.3    +      -       -      +
    248B  ARG*     5.9     0.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 248 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    244A  GLN      3.0    18.7    +      -       -      +
    245A  GLN*     3.8     7.6    -      -       -      +
    247A  PHE*     1.3    75.1    -      -       -      +
    249A  ASN*     1.3    72.2    +      -       -      +
    251A  ALA*     3.1     6.1    +      -       -      +
    252A  VAL*     3.1    27.8    +      -       +      +
    250B  ALA      5.9     0.2    -      -       -      -
    251B  ALA*     4.2    27.6    -      -       +      +
    254B  TYR*     4.0    46.4    -      -       -      +
      5D  GLC      5.7     2.8    +      -       -      -
      6D  GLC      5.6    14.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 249 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    213A  LEU*     3.3    43.6    +      -       +      +
    216A  GLU*     3.0    29.3    +      -       -      +
    217A  ASN*     3.0    32.3    +      -       -      +
    220A  LEU*     4.4     0.8    -      -       -      +
    245A  GLN*     2.9    29.4    +      -       -      +
    246A  LEU      3.6     0.2    -      -       -      +
    248A  ARG*     1.3    80.3    -      -       -      +
    250A  ALA*     1.3    56.4    +      -       -      +
    252A  VAL*     3.3     3.1    +      -       -      +
    253A  VAL*     2.9    34.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 250 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118A  MET*     3.5    31.6    -      -       +      -
    217A  ASN*     3.5     8.5    -      -       -      +
    246A  LEU      2.9    17.8    +      -       -      +
    247A  PHE      3.7     4.9    -      -       -      +
    248A  ARG      3.2     0.4    -      -       -      -
    249A  ASN*     1.3    77.1    -      -       -      +
    251A  ALA*     1.3    58.2    +      -       -      +
    253A  VAL*     4.4     0.9    -      -       -      -
    254A  TYR*     2.9    20.4    +      -       -      +
    701A  VD3      2.6    32.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 251 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    247A  PHE      3.1    13.3    +      -       -      +
    248A  ARG*     3.1     9.6    +      -       -      +
    250A  ALA*     1.3    73.9    -      -       -      +
    252A  VAL*     1.3    67.9    +      -       -      +
    254A  TYR*     3.1     7.8    +      -       -      +
    255A  ASP      3.1    18.5    +      -       -      -
    248B  ARG*     4.0    42.8    -      -       +      +
    251B  ALA*     4.1     9.9    -      -       +      -
    252B  VAL*     3.8    10.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 252 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    209A  HIS*     5.0     1.6    -      -       +      +
    210A  MET*     6.2     2.0    -      -       +      -
    213A  LEU*     3.5    21.3    -      -       +      -
    248A  ARG*     3.1    20.0    +      -       +      +
    249A  ASN*     3.8     4.9    -      -       -      +
    251A  ALA*     1.3    75.7    -      -       -      +
    253A  VAL*     1.3    63.0    +      -       +      +
    255A  ASP*     3.4     2.9    +      -       -      +
    256A  PHE*     3.2    24.1    +      -       +      +
    251B  ALA*     3.8    18.6    -      -       +      +
    252B  VAL*     4.3     9.9    -      -       +      -
    255B  ASP*     3.4    47.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 253 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210A  MET*     3.7    33.0    -      -       +      +
    213A  LEU*     3.9    10.3    -      -       +      -
    214A  PHE*     3.8    39.5    -      -       +      +
    217A  ASN*     5.2     1.1    -      -       -      +
    249A  ASN      2.9    21.9    +      -       -      +
    250A  ALA*     4.4     0.7    -      -       -      -
    252A  VAL*     1.3    76.4    -      -       -      +
    254A  TYR*     1.3    56.8    +      -       -      +
    256A  PHE*     3.3     2.6    +      -       -      +
    257A  LEU*     2.9    50.0    +      -       +      +
    701A  VD3      3.7    15.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 254 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    250A  ALA      2.9    19.3    +      -       -      +
    251A  ALA*     3.1     7.2    +      -       -      +
    253A  VAL*     1.3    76.0    -      -       -      +
    255A  ASP*     1.3    68.1    +      -       +      +
    257A  LEU      3.6     0.2    +      -       -      -
    258A  SER*     3.2    21.7    +      -       -      -
    298A  GLU*     3.9    22.2    -      -       -      +
    301A  ILE*     3.4    47.0    -      -       +      +
    302A  PHE*     3.5    35.0    -      +       -      -
    701A  VD3      4.1    13.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 255 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    251A  ALA      3.1     5.2    +      -       -      +
    252A  VAL      3.8     4.9    -      -       -      +
    254A  TYR*     1.3    79.5    -      -       +      +
    256A  PHE*     1.3    67.2    +      -       -      +
    258A  SER*     3.0    22.8    +      -       -      -
    259A  ARG*     3.1    16.5    +      -       -      +
    209B  HIS*     3.0    40.9    +      -       -      -
    213B  LEU*     3.7     8.5    -      -       -      +
    252B  VAL*     3.3    41.2    -      -       +      +
----------------------------------------------------------
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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
----------------------------------------------------------
    206A  ASP*     3.8    24.2    -      -       +      -
    207A  PHE*     3.7    35.7    -      +       +      -
    210A  MET*     3.6    29.4    -      -       +      -
    252A  VAL*     3.2    16.9    +      -       +      +
    253A  VAL      3.7     4.0    -      -       -      +
    255A  ASP*     1.3    79.6    -      -       -      +
    257A  LEU*     1.3    61.9    -      -       -      +
    259A  ARG*     3.1    12.2    +      -       +      +
    260A  LEU*     3.1    54.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 257 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210A  MET*     3.9    25.1    -      -       +      -
    214A  PHE*     4.2     2.7    -      -       +      -
    253A  VAL*     2.9    38.2    +      -       +      +
    255A  ASP      3.3     0.2    -      -       -      -
    256A  PHE*     1.3    75.9    -      -       -      +
    258A  SER*     1.3    61.7    +      -       -      +
    260A  LEU*     3.3    10.6    +      -       +      +
    261A  ILE*     3.0    32.8    +      -       +      +
    301A  ILE*     3.8    20.9    -      -       +      +
    304A  VAL*     4.1     9.4    -      -       +      -
    305A  GLY*     3.5    27.8    -      -       -      +
    308A  ILE*     3.9    22.7    -      -       +      -
    701A  VD3      4.3     9.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 258 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    254A  TYR*     3.2    13.5    +      -       -      -
    255A  ASP*     3.0    17.5    +      -       -      -
    257A  LEU*     1.3    76.3    -      -       -      +
    259A  ARG*     1.3    64.7    +      -       -      +
    261A  ILE*     3.8     4.5    -      -       -      +
    262A  GLU*     3.1    33.9    +      -       -      +
    297A  LYS*     5.4     9.0    -      -       -      -
    301A  ILE*     3.5    32.6    -      -       -      +
    209B  HIS*     5.3     2.9    +      -       -      -
----------------------------------------------------------
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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
----------------------------------------------------------
    255A  ASP*     3.1    24.7    +      -       -      +
    256A  PHE*     3.4    13.5    -      -       +      +
    258A  SER*     1.3    81.6    +      -       -      +
    260A  LEU*     1.3    60.6    +      -       +      +
    262A  GLU*     3.3    24.5    +      -       -      +
    263A  LYS*     3.1    46.3    +      -       -      +
    205B  THR*     2.9    42.8    +      -       -      -
    206B  ASP*     3.2    26.1    +      -       -      +
    209B  HIS*     3.8    37.4    +      -       +      +
----------------------------------------------------------
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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
----------------------------------------------------------
    196A  PHE*     3.8    32.2    -      -       +      -
    200A  PHE*     4.4    20.0    -      -       +      -
    207A  PHE*     3.8    21.3    -      -       +      -
    210A  MET*     4.5     4.9    -      -       +      -
    256A  PHE*     3.1    46.9    +      -       +      +
    257A  LEU*     3.6    10.8    -      -       +      +
    259A  ARG*     1.3    73.9    -      -       +      +
    261A  ILE*     1.3    61.6    +      -       -      +
    263A  LYS*     3.4    16.9    +      -       +      +
    264A  ALA*     2.9    30.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 261 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    196A  PHE*     4.3     6.7    -      -       +      -
    257A  LEU*     3.0    22.5    +      -       +      +
    258A  SER*     3.8     5.6    -      -       -      +
    259A  ARG      3.3     0.2    -      -       -      -
    260A  LEU*     1.3    77.1    -      -       -      +
    262A  GLU*     1.3    55.4    +      -       +      +
    264A  ALA*     3.5     5.8    +      -       -      -
    265A  SER*     2.7    33.8    +      -       -      +
    277A  VAL*     3.9    24.8    -      -       +      +
    281A  LEU*     5.7     1.1    -      -       +      -
    297A  LYS*     6.5     1.3    -      -       +      -
    300A  LEU*     3.7    35.7    -      -       +      +
    301A  ILE*     3.7    40.2    -      -       +      +
    304A  VAL*     3.9    15.0    -      -       +      -
----------------------------------------------------------
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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
----------------------------------------------------------
    258A  SER*     3.1    22.8    +      -       -      +
    259A  ARG*     3.7    23.1    +      -       -      +
    260A  LEU      3.1     0.2    -      -       -      -
    261A  ILE*     1.3    78.2    -      -       +      +
    263A  LYS*     1.3    64.7    +      -       +      +
    265A  SER*     3.2    21.9    +      -       -      -
    266A  VAL*     3.4    13.8    +      -       -      +
    297A  LYS*     4.6    21.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 263 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    259A  ARG*     3.1    35.3    +      -       -      +
    260A  LEU*     3.8    16.3    -      -       +      +
    262A  GLU*     1.3    75.6    -      -       -      +
    264A  ALA*     1.3    59.9    +      -       -      +
    265A  SER      3.5     0.5    +      -       -      -
    266A  VAL*     3.6    22.3    +      -       +      +
    267A  ASN*     5.3     0.7    +      -       -      -
    205B  THR*     4.7     5.2    -      -       -      +
    206B  ASP*     2.8    42.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 264 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    196A  PHE*     4.0    30.3    -      -       +      +
    198A  GLU*     6.1     2.0    -      -       -      +
    260A  LEU      2.9    17.9    +      -       -      +
    261A  ILE*     3.9     5.4    -      -       -      +
    262A  GLU      3.2     0.2    -      -       -      -
    263A  LYS*     1.3    75.7    -      -       -      +
    265A  SER*     1.3    58.6    +      -       -      +
    266A  VAL      3.5     0.8    +      -       -      -
    267A  ASN      5.1     1.6    +      -       -      -
    268A  ARG      5.4     0.5    +      -       -      -
    275A  HIS*     3.2    38.1    +      -       +      +
    277A  VAL*     4.6     3.8    -      -       +      -
    278A  ASP*     3.7     2.4    -      -       -      +
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Residues in contact with SER 265 (chain A). Click here for Legend to table.
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                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
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    261A  ILE*     2.7    23.1    +      -       -      +
    262A  GLU*     3.2    19.9    +      -       -      -
    264A  ALA*     1.3    77.3    -      -       -      +
    266A  VAL*     1.3    68.4    +      -       -      +
    267A  ASN      3.5     1.6    -      -       -      -
    268A  ARG*     3.1    17.7    -      -       -      +
    277A  VAL*     4.2     3.1    -      -       -      -
    278A  ASP*     4.1     7.4    -      -       -      -
    281A  LEU*     3.4    33.5    -      -       -      +
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Residues in contact with VAL 266 (chain A). Click here for Legend to table.
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                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
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    262A  GLU      3.4    16.3    +      -       -      +
    263A  LYS*     3.6    18.8    -      -       +      +
    264A  ALA      3.5     1.6    -      -       -      -
    265A  SER*     1.3    80.3    -      -       -      +
    267A  ASN*     1.3    75.3    +      -       -      +
    268A  ARG*     3.0     5.7    +      -       -      +
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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
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  Atomic class           I  II  III   IV   V   VI  VII  VIII
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   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
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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