Contacts of the helix formed by residues 244 - 273 (chain A) in PDB entry 6R7X


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 VAL 244 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    241A  ASP*     3.3    11.1    +      -       -      +
    242A  LYS*     3.1    15.6    -      -       +      +
    243A  TYR*     1.3    79.8    -      -       -      +
    245A  ILE*     1.3    67.0    +      -       +      +
    247A  ALA*     4.4     0.6    -      -       -      +
    248A  SER*     2.6    37.5    +      -       -      +
    574A  ILE*     5.4     5.2    -      -       +      -
    598A  VAL*     5.6    17.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 245 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    232A  TYR*     6.4     0.7    -      -       +      -
    241A  ASP*     3.1    27.9    +      -       +      +
    244A  VAL*     1.3    80.8    -      -       +      +
    246A  PHE*     1.3    61.2    +      -       +      +
    248A  SER*     3.5     4.4    +      -       -      -
    249A  PHE*     2.9    30.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 246 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225A  MET      4.7     4.3    -      -       -      -
    228A  ILE*     3.7    33.0    -      -       +      -
    229A  GLY*     3.9    12.1    -      -       -      -
    232A  TYR*     3.5    48.2    -      +       +      +
    241A  ASP*     3.4     2.6    +      -       -      +
    243A  TYR*     5.4     3.1    -      +       +      +
    244A  VAL      3.5     0.4    -      -       -      +
    245A  ILE*     1.3    79.0    -      -       +      +
    247A  ALA*     1.3    61.9    +      -       -      +
    249A  PHE*     3.3     9.0    +      +       -      +
    250A  ASN*     2.9    63.7    +      -       -      -
    512A  SER*     3.2    25.8    -      -       -      -
    513A  CYS*     4.8     7.0    -      -       -      -
    516A  PRO*     3.6    24.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 247 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    243A  TYR      3.4    22.0    +      -       -      +
    244A  VAL      4.4     1.1    -      -       -      +
    245A  ILE      3.4     0.2    -      -       -      -
    246A  PHE*     1.3    76.4    -      -       -      +
    248A  SER*     1.3    62.7    +      -       -      +
    250A  ASN*     3.3     7.3    +      -       -      +
    251A  LEU*     3.0    43.2    +      -       +      +
    513A  CYS*     3.7    27.1    -      -       -      -
    570A  ASN*     5.0     3.4    -      -       +      +
    571A  CYS*     6.2     0.4    -      -       -      -
    574A  ILE*     3.7    11.2    -      -       +      -
    602A  LEU*     5.0     3.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 248 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    244A  VAL*     2.6    30.3    +      -       -      +
    245A  ILE*     3.8     4.5    -      -       -      -
    247A  ALA*     1.3    76.5    -      -       -      +
    249A  PHE*     1.3    58.2    +      -       -      +
    251A  LEU*     4.2     0.4    -      -       -      +
    252A  ILE*     3.0    38.3    +      -       -      +
    598A  VAL*     5.5     2.6    -      -       -      +
    602A  LEU*     4.2    31.2    -      -       -      +
    708A  UMQ      6.0     5.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 249 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    224A  PRO*     4.2    25.4    -      -       +      -
    225A  MET*     4.8     2.7    -      -       +      -
    228A  ILE*     3.8    42.0    -      -       +      -
    245A  ILE*     2.9    21.5    +      -       +      +
    246A  PHE*     3.6     9.4    -      +       -      +
    247A  ALA      3.3     0.2    -      -       -      -
    248A  SER*     1.3    77.7    -      -       -      +
    250A  ASN*     1.3    68.9    +      -       -      +
    252A  ILE*     4.3     3.0    -      -       +      +
    253A  TRP*     2.9    54.9    +      +       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 250 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225A  MET*     3.6    32.8    -      -       +      +
    246A  PHE*     2.9    62.1    +      -       -      +
    247A  ALA*     3.3     7.6    +      -       -      +
    249A  PHE*     1.3    80.3    -      -       -      +
    251A  LEU*     1.3    62.4    +      -       +      +
    253A  TRP*     3.4     3.4    +      -       -      -
    254A  SER*     2.9    29.3    +      -       -      -
    512A  SER*     3.3    29.3    +      -       -      +
    513A  CYS*     5.6     0.4    -      -       -      +
    570A  ASN*     4.9     1.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 251 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    247A  ALA*     3.0    20.2    +      -       +      +
    248A  SER*     4.2     2.5    -      -       -      +
    250A  ASN*     1.3    75.9    -      -       +      +
    252A  ILE*     1.3    66.5    +      -       +      +
    254A  SER*     3.0    15.9    +      -       -      +
    255A  THR*     2.9    20.8    +      -       -      -
    509A  SER*     4.9     2.9    -      -       -      +
    563A  SER      4.4     2.9    -      -       -      +
    566A  SER*     3.3    26.5    -      -       -      +
    567A  VAL*     3.7    39.7    -      -       +      +
    570A  ASN*     3.9    25.1    -      -       +      +
    571A  CYS*     5.5     1.6    -      -       -      -
    602A  LEU*     3.8    29.4    -      -       +      +
    606A  LYS*     3.1     6.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 252 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    248A  SER*     3.0    23.8    +      -       -      +
    249A  PHE*     4.3     3.8    -      -       +      +
    251A  LEU*     1.3    76.2    -      -       +      +
    253A  TRP*     1.3    57.9    +      -       -      +
    255A  THR*     3.4     4.4    +      -       -      +
    256A  VAL*     2.9    33.5    +      -       +      +
    602A  LEU*     4.6    13.0    -      -       +      +
    605A  LEU*     3.8    43.5    -      -       +      -
    606A  LYS*     4.7     6.3    -      -       +      +
    609A  LEU*     3.8    24.0    -      -       +      -
    708A  UMQ      4.2    24.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 253 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    220A  PHE      5.1     2.0    -      -       -      -
    221A  ALA*     2.7    29.9    +      -       -      -
    224A  PRO*     3.6    35.9    -      -       +      +
    225A  MET*     3.6    27.4    -      -       +      -
    249A  PHE*     2.9    41.9    +      +       +      +
    250A  ASN*     3.8     3.8    -      -       -      +
    252A  ILE*     1.3    78.8    -      -       -      +
    254A  SER*     1.3    57.0    +      -       -      +
    256A  VAL*     3.8    21.4    -      -       +      +
    257A  ILE*     2.9    47.8    +      -       +      +
    260A  LEU*     6.2     2.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 254 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225A  MET*     4.2     7.1    -      -       -      +
    250A  ASN      2.9    16.4    +      -       -      -
    251A  LEU*     3.0    12.3    +      -       -      +
    253A  TRP*     1.3    75.6    -      -       -      +
    255A  THR*     1.3    58.5    +      -       -      +
    257A  ILE*     3.3    13.0    -      -       -      +
    258A  LEU*     3.0    33.1    +      -       -      +
    505A  PHE*     3.8    25.4    -      -       -      -
    509A  SER*     5.2     4.5    -      -       -      -
    563A  SER*     2.8    24.6    +      -       -      -
    606A  LYS*     3.3     0.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 255 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    251A  LEU      2.9     8.7    +      -       -      -
    252A  ILE*     3.8     6.5    -      -       -      -
    254A  SER*     1.3    77.9    +      -       -      +
    256A  VAL*     1.3    57.9    +      -       -      +
    258A  LEU*     3.4     6.0    +      -       +      +
    259A  GLU*     3.0    28.9    +      -       -      +
    563A  SER*     4.9     0.9    -      -       -      -
    606A  LYS*     2.4    72.7    +      -       +      +
    609A  LEU*     4.3    11.0    -      -       +      -
    610A  ALA*     4.3    18.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 256 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    252A  ILE*     2.9    26.2    +      -       +      +
    253A  TRP*     3.8    28.9    -      -       +      +
    255A  THR*     1.3    76.0    -      -       -      +
    257A  ILE*     1.3    58.4    +      -       +      +
    259A  GLU*     3.3     4.5    +      -       -      +
    260A  LEU*     2.9    47.3    +      -       +      +
    609A  LEU*     4.2    22.2    -      -       +      -
    613A  ILE*     5.1     5.8    -      -       +      +
    708A  UMQ      4.1    31.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 257 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217A  TYR*     3.1    27.0    +      -       +      +
    218A  PHE*     4.7    19.5    -      -       +      -
    221A  ALA*     3.7    35.4    -      -       +      +
    222A  LEU*     5.0     1.1    -      -       +      -
    225A  MET*     4.9     2.9    -      -       +      -
    253A  TRP*     2.9    55.2    +      -       +      +
    254A  SER*     3.3    21.3    -      -       -      +
    256A  VAL*     1.3    76.9    -      -       +      +
    258A  LEU*     1.3    62.5    +      -       +      +
    260A  LEU*     6.1     0.7    -      -       +      -
    261A  TRP*     2.9    25.8    +      -       -      +
    505A  PHE*     4.8    10.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 258 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    214A  PHE*     5.2    12.6    -      -       +      -
    218A  PHE*     6.1     3.4    -      -       +      -
    254A  SER      3.0    21.6    +      -       -      +
    255A  THR*     4.0     5.8    -      -       +      +
    257A  ILE*     1.3    84.2    -      -       +      +
    259A  GLU*     1.3    59.6    +      -       -      +
    261A  TRP*     4.2     4.9    -      -       +      +
    262A  LYS*     3.9     8.1    +      -       -      +
    505A  PHE*     4.4     9.6    -      -       +      -
    556A  GLN*     2.7    39.2    +      -       -      +
    559A  PHE*     3.4    56.3    -      -       +      +
    560A  GLU*     3.8    17.3    -      -       +      +
    563A  SER*     4.2    11.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 259 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    255A  THR      3.0    16.4    +      -       -      +
    256A  VAL      3.9     2.5    -      -       -      +
    257A  ILE      3.2     0.2    -      -       -      -
    258A  LEU*     1.3    77.2    -      -       -      +
    260A  LEU*     1.3    60.1    +      -       -      +
    261A  TRP      3.2     1.8    -      -       -      -
    262A  LYS*     3.0    38.7    +      -       -      +
    263A  ARG*     3.1    12.4    +      -       -      +
    560A  GLU*     4.9     3.5    -      -       -      +
    609A  LEU      4.9     2.5    -      -       -      +
    610A  ALA*     3.7    17.7    -      -       -      +
    613A  ILE*     2.9    46.7    -      -       +      +
    614A  PRO      3.6     6.7    -      -       -      +
    615A  ASP*     3.0    10.4    +      -       -      +
    703A   CA      2.6    28.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 260 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217A  TYR*     3.2    25.3    -      -       +      +
    253A  TRP*     6.2     2.5    -      -       +      -
    256A  VAL*     2.9    34.2    +      -       +      +
    257A  ILE*     6.1     0.4    -      -       +      -
    259A  GLU*     1.3    73.1    -      -       +      +
    261A  TRP*     1.3    59.9    +      -       -      +
    263A  ARG*     3.7    27.5    -      -       +      +
    264A  GLY*     2.9    24.8    +      -       -      -
    613A  ILE*     5.0     6.7    -      -       +      -
    708A  UMQ      3.9    51.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 261 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210A  LEU*     3.8    11.0    -      -       +      -
    213A  GLY      3.9     4.0    -      -       -      -
    214A  PHE*     3.5    58.1    -      +       +      -
    217A  TYR*     3.6    28.6    +      +       +      -
    257A  ILE      2.9    19.5    +      -       -      +
    258A  LEU*     4.4     7.0    -      -       +      +
    259A  GLU      3.2     0.2    -      -       -      -
    260A  LEU*     1.3    76.2    -      -       -      +
    262A  LYS*     1.3    60.7    +      -       +      +
    264A  GLY*     3.3     2.9    +      -       -      +
    265A  CYS*     2.8    47.6    +      -       +      +
    268A  MET*     3.8    26.9    -      -       +      -
    552A  ILE*     3.6    39.6    -      -       +      +
    556A  GLN*     3.3    24.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 262 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    258A  LEU      3.9     5.4    +      -       -      +
    259A  GLU*     3.0    35.4    +      -       -      +
    261A  TRP*     1.3    78.2    -      -       +      +
    263A  ARG*     1.3    58.5    +      -       -      +
    265A  CYS*     3.8     5.8    -      -       -      +
    266A  ALA*     3.0    29.1    +      -       -      +
    556A  GLN*     3.5    37.9    -      -       +      +
    560A  GLU*     4.5     9.7    +      -       -      -
    610A  ALA      5.4     0.4    +      -       -      -
    615A  ASP*     3.3    40.9    +      -       +      +
    703A   CA      4.3     1.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 263 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    259A  GLU      3.1    12.2    +      -       -      +
    260A  LEU*     3.7    34.3    -      -       +      +
    261A  TRP      3.3     0.2    -      -       -      -
    262A  LYS*     1.3    76.0    -      -       -      +
    264A  GLY*     1.3    57.1    +      -       -      +
    266A  ALA*     3.3     4.0    +      -       -      +
    267A  ASN*     3.0    26.9    +      -       -      +
    613A  ILE*     4.0    11.2    -      -       -      +
    614A  PRO*     3.4    47.6    +      -       -      +
    615A  ASP      3.3    18.6    -      -       -      +
    616A  LYS      4.1     6.1    +      -       -      -
    617A  PRO*     3.7    34.0    -      -       +      +
    618A  ARG*     4.7     3.6    -      -       -      +
    706A  UMQ      3.5    24.3    +      -       -      -
    708A  UMQ      3.8    17.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 264 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    260A  LEU      2.9    16.6    +      -       -      -
    261A  TRP*     3.7     4.5    -      -       -      -
    263A  ARG*     1.3    77.3    -      -       -      +
    265A  CYS*     1.3    57.2    +      -       -      +
    267A  ASN*     3.4     9.5    +      -       -      +
    268A  MET*     2.9    37.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 265 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210A  LEU*     4.3    12.6    -      -       -      -
    261A  TRP*     2.8    44.6    +      -       +      +
    262A  LYS*     3.8     6.3    -      -       -      +
    264A  GLY*     1.3    70.0    -      -       -      +
    266A  ALA*     1.3    55.8    +      -       -      +
    268A  MET*     4.4     9.9    -      -       -      +
    269A  THR*     2.4    39.7    +      -       -      +
    550A  ALA      3.3    24.0    -      -       -      -
    551A  ASN*     3.7    18.8    -      -       -      -
    552A  ILE      4.8     0.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 266 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    262A  LYS      3.0    18.7    +      -       -      +
    263A  ARG      3.3     5.4    +      -       -      +
    265A  CYS*     1.3    77.0    -      -       -      +
    267A  ASN*     1.3    56.6    +      -       -      +
    269A  THR*     3.5     6.1    +      -       -      -
    270A  TYR*     2.9    31.5    +      -       -      +
    275A  LEU*     3.9    12.8    -      -       +      +
    615A  ASP      4.3     0.4    -      -       -      +
    616A  LYS*     4.2    22.4    -      -       +      +
    617A  PRO*     3.9    17.3    -      -       +      -
    620A  ILE*     4.3     3.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 267 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    263A  ARG      3.0    13.4    +      -       -      +
    264A  GLY*     3.6    11.3    +      -       -      +
    265A  CYS      3.3     0.2    -      -       -      -
    266A  ALA*     1.3    76.8    -      -       -      +
    268A  MET*     1.3    57.3    +      -       -      +
    270A  TYR*     3.4     3.1    +      -       -      +
    271A  ARG*     3.0    43.3    +      -       -      +
    617A  PRO*     4.7     9.1    -      -       +      +
    619A  HIS*     4.1    14.0    +      -       +      -
    620A  ILE*     3.8    20.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 268 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    197A  ILE*     3.9    39.7    -      -       +      -
    210A  LEU*     3.9    14.6    -      -       +      -
    213A  GLY*     4.5     9.4    -      -       -      -
    261A  TRP*     3.8    35.0    -      -       +      -
    264A  GLY      2.9    20.3    +      -       -      +
    265A  CYS*     3.9     3.1    -      -       -      +
    266A  ALA      3.4     0.2    -      -       -      -
    267A  ASN*     1.3    78.6    -      -       +      +
    269A  THR*     1.3    57.9    +      -       -      +
    271A  ARG*     3.0    38.9    +      -       -      +
    272A  TRP*     3.0    35.2    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 269 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210A  LEU*     3.9    19.3    -      -       +      -
    265A  CYS      2.4    32.4    +      -       -      +
    266A  ALA*     3.5     7.4    +      -       -      -
    268A  MET*     1.3    71.9    -      -       -      +
    270A  TYR*     1.3    59.7    +      -       -      +
    272A  TRP*     4.0     8.1    -      -       +      -
    273A  GLY      3.3     2.4    +      -       -      -
    274A  THR*     3.2    19.7    +      -       -      +
    275A  LEU*     2.9    36.5    +      -       -      +
    549A  SER      3.6    19.7    -      -       -      +
    550A  ALA*     3.3    26.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 270 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95A  ASN      4.7     7.2    +      -       -      -
     96A  THR*     4.8     3.1    -      -       -      +
     97A  MET*     3.8    37.5    +      -       +      +
    266A  ALA      2.9    19.1    +      -       -      +
    267A  ASN*     3.8     3.6    -      -       -      +
    269A  THR*     1.3    76.7    -      -       -      +
    271A  ARG*     1.3    66.1    +      -       -      +
    272A  TRP      3.2     1.1    +      -       -      -
    273A  GLY*     3.5     8.5    +      -       -      -
    275A  LEU*     4.0     8.2    -      -       +      +
    276A  LEU*     3.8    25.1    -      -       +      -
    620A  ILE*     3.6    28.5    -      -       +      -
    623A  LYS*     3.4    49.2    +      -       +      +
    624A  LEU*     4.0    26.9    -      -       +      -
    627A  LEU*     5.6     3.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 271 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97A  MET*     4.2    10.5    -      -       -      +
    197A  ILE*     5.1     6.7    -      -       -      +
    198A  ASP*     2.9    43.6    +      -       -      +
    201A  ARG*     5.7     0.2    +      -       -      -
    267A  ASN*     3.0    31.1    +      -       -      +
    268A  MET*     3.0    38.4    +      -       -      +
    270A  TYR*     1.3    80.8    -      -       +      +
    272A  TRP*     1.3    68.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 272 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     89A  VAL      3.8    10.4    -      -       -      +
     97A  MET*     4.3     4.6    -      -       -      +
    197A  ILE*     3.7    32.1    -      -       +      -
    198A  ASP*     2.9    26.8    +      -       -      -
    201A  ARG*     3.6    53.9    +      -       +      +
    206A  GLU*     3.6    37.1    -      -       +      +
    209A  ALA*     3.6    22.7    -      -       +      -
    210A  LEU*     3.7    24.0    -      -       +      -
    268A  MET*     3.0    36.4    +      -       +      +
    269A  THR*     4.5     9.4    -      -       +      +
    270A  TYR      4.2     0.2    -      -       -      -
    271A  ARG*     1.3    91.0    -      -       +      +
    273A  GLY*     1.3    57.6    +      -       -      +
    274A  THR*     3.6     5.4    -      -       -      +
    549A  SER      5.5     0.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 273 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     89A  VAL*     3.6    33.9    -      -       -      +
     97A  MET*     4.2     2.9    -      -       -      -
    269A  THR      3.3     6.1    +      -       -      -
    270A  TYR*     3.5     9.0    +      -       -      -
    272A  TRP*     1.3    78.5    -      -       -      +
    274A  THR*     1.3    57.7    +      -       -      +
    275A  LEU      3.2     5.4    -      -       -      -
    276A  LEU*     3.1    20.8    +      -       -      +
    277A  MET*     3.4     9.9    +      -       -      +
----------------------------------------------------------
 Back to top of page


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