Contacts of the helix formed by residues 249 - 276 (chain F) in PDB entry 2NQB


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 LEU 249 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    721E  PRO*     3.6    26.9    -      -       +      +
    247F  SER*     3.0     4.1    +      -       -      +
    248F  GLY*     1.3    78.4    -      -       -      +
    250F  ILE*     1.3    62.3    +      -       -      +
    251F  TYR      3.3     1.0    +      -       -      -
    252F  GLU*     3.7     9.9    +      -       +      +
    253F  GLU*     3.4    20.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 250 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    704E  PHE*     4.1    16.6    -      -       +      -
    719E  ILE*     3.3    33.0    -      -       +      +
    720E  MET      3.6    29.2    -      -       -      +
    721E  PRO*     3.8     1.6    -      -       +      -
    724E  ILE*     3.6    20.6    -      -       +      -
    234F  ILE*     4.6     4.9    -      -       +      -
    246F  ILE*     3.4    23.1    -      -       +      -
    247F  SER*     2.9    18.6    +      -       -      +
    249F  LEU*     1.3    79.3    -      -       -      +
    251F  TYR*     1.3    55.3    +      -       -      +
    253F  GLU*     3.4     4.1    +      -       -      +
    254F  THR*     2.7    48.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 251 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    231F  LYS*     3.5    53.5    -      -       +      -
    234F  ILE*     3.6    33.8    -      -       +      +
    235F  ARG*     3.0    34.8    +      -       +      -
    246F  ILE*     3.7    23.9    +      -       +      +
    247F  SER      4.1     8.7    -      -       -      -
    248F  GLY*     3.3    26.0    -      -       -      +
    249F  LEU      3.3     0.8    -      -       -      -
    250F  ILE*     1.3    77.0    -      -       +      +
    252F  GLU*     1.3    62.6    +      -       -      +
    254F  THR      3.4     0.9    +      -       -      -
    255F  ARG*     3.1    45.7    +      -       -      +
     81I    G      4.4     1.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 252 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    226F  ILE*     5.9     0.2    -      -       -      +
    227F  GLN*     3.7    14.1    +      -       -      +
    248F  GLY      5.1     0.6    +      -       -      -
    249F  LEU*     3.7    12.9    +      -       +      +
    250F  ILE      3.4     0.2    -      -       -      -
    251F  TYR*     1.3    76.4    -      -       -      +
    253F  GLU*     1.3    65.4    +      -       -      +
    255F  ARG*     3.0    42.8    +      -       -      +
    256F  GLY*     3.2    17.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 253 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    721E  PRO*     4.1    15.3    -      -       +      +
    724E  ILE*     4.2    27.9    -      -       +      +
    725E  GLN*     2.6    41.3    +      -       -      +
    249F  LEU      3.4    14.9    +      -       -      +
    250F  ILE*     3.4     5.3    +      -       -      +
    251F  TYR      3.3     0.4    -      -       -      -
    252F  GLU*     1.3    77.8    -      -       -      +
    254F  THR*     1.3    62.0    +      -       -      +
    256F  GLY*     3.3     3.4    +      -       -      +
    257F  VAL*     3.1    31.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 254 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    700E  LEU*     4.2    26.0    -      -       +      +
    704E  PHE*     3.5    33.6    -      -       +      -
    724E  ILE*     4.2     6.4    -      -       -      +
    229F  ILE*     5.8     1.8    -      -       +      -
    234F  ILE*     4.0    22.0    -      -       +      -
    237F  LEU*     5.7     0.4    -      -       +      -
    250F  ILE*     2.7    27.1    +      -       -      +
    251F  TYR      3.6     5.4    -      -       -      -
    252F  GLU      3.2     0.2    -      -       -      -
    253F  GLU*     1.3    75.0    -      -       -      +
    255F  ARG*     1.3    59.0    +      -       -      +
    257F  VAL*     3.2     6.8    +      -       -      +
    258F  LEU*     2.8    28.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 255 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    226F  ILE*     3.5    42.0    +      -       +      +
    227F  GLN*     3.7    27.3    +      -       -      +
    229F  ILE*     3.0    28.7    +      -       +      +
    230F  THR*     3.9     2.4    -      -       -      +
    231F  LYS*     3.7    20.4    -      -       -      +
    234F  ILE*     4.2    10.6    -      -       +      +
    251F  TYR*     3.1    35.5    +      -       -      +
    252F  GLU*     3.0    41.4    +      -       -      +
    253F  GLU      3.3     0.2    -      -       -      -
    254F  THR*     1.3    75.5    -      -       -      +
    256F  GLY*     1.3    57.7    +      -       -      +
    258F  LEU*     3.2     4.5    +      -       -      -
    259F  LYS*     2.9    30.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 256 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    252F  GLU      3.2    11.0    +      -       -      -
    253F  GLU*     3.3     4.5    +      -       -      -
    254F  THR      3.2     0.2    -      -       -      -
    255F  ARG*     1.3    80.6    -      -       -      +
    257F  VAL*     1.3    59.6    +      -       -      +
    259F  LYS*     3.4     6.9    +      -       -      +
    260F  VAL*     3.2    29.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 257 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    699E  TYR*     3.6    21.7    -      -       +      +
    700E  LEU*     4.4     4.7    -      -       +      -
    703E  LEU*     3.6    27.4    -      -       +      -
    724E  ILE*     4.2    18.8    -      -       +      -
    728E  ARG*     4.0    27.7    +      -       -      +
    253F  GLU*     3.1    22.5    +      -       +      +
    254F  THR*     3.6    10.1    -      -       -      +
    256F  GLY*     1.3    72.9    -      -       -      +
    258F  LEU*     1.3    66.6    +      -       -      +
    260F  VAL*     3.4     7.0    +      -       -      +
    261F  PHE*     3.1    21.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 258 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    662E  ILE*     4.4     6.1    -      -       +      -
    667E  PHE*     4.8     2.0    -      -       +      -
    670E  LEU*     4.3     7.9    -      -       +      -
    696E  SER*     3.8    28.3    -      -       -      -
    699E  TYR*     5.7     0.7    -      -       +      -
    700E  LEU*     4.1    30.9    -      -       +      +
    226F  ILE*     4.7     1.8    -      -       +      -
    229F  ILE*     3.8    40.8    -      -       +      -
    254F  THR*     2.8    17.8    +      -       +      +
    255F  ARG*     3.7     5.2    -      -       -      +
    257F  VAL*     1.3    79.1    -      -       -      +
    259F  LYS*     1.3    58.1    +      -       -      +
    261F  PHE*     3.2     9.4    +      -       +      +
    262F  LEU*     2.8    44.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 259 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    670E  LEU*     5.7     1.1    -      -       +      -
    673E  GLU*     4.9    11.4    +      -       -      -
    674E  ILE*     4.2    21.1    -      -       +      -
    226F  ILE*     4.4    26.2    -      -       +      +
    255F  ARG      2.9    16.7    +      -       -      +
    256F  GLY*     3.7     8.1    -      -       -      +
    257F  VAL      3.3     0.2    -      -       -      -
    258F  LEU*     1.3    78.4    -      -       -      +
    260F  VAL*     1.3    58.2    +      -       +      +
    262F  LEU*     3.7     5.4    -      -       -      +
    263F  GLU*     2.8    59.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 260 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    728E  ARG*     4.5    22.4    -      -       -      +
    256F  GLY      3.2    16.9    +      -       -      +
    257F  VAL*     3.8     6.7    -      -       -      +
    258F  LEU      3.3     0.2    -      -       -      -
    259F  LYS*     1.3    77.4    -      -       +      +
    261F  PHE*     1.3    64.9    +      -       -      +
    263F  GLU*     3.7    14.8    -      -       -      +
    264F  ASN*     3.1    41.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 261 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    692E  LEU*     5.2     1.6    -      -       +      -
    695E  ALA*     4.0     9.0    -      -       +      -
    696E  SER*     3.7    37.9    -      -       -      -
    699E  TYR*     3.5    55.6    -      +       +      -
    257F  VAL      3.1    14.3    +      -       -      +
    258F  LEU*     3.5     9.0    -      -       +      +
    260F  VAL*     1.3    79.4    -      -       -      +
    262F  LEU*     1.3    67.2    +      -       +      +
    264F  ASN*     3.4     5.5    +      -       -      +
    265F  VAL*     3.1    45.4    +      -       +      +
    290F  LEU*     4.3    12.8    -      -       +      -
    293F  GLN*     4.1    16.8    -      -       -      -
    295F  ARG*     4.4    13.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 262 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    667E  PHE*     3.9    23.6    -      -       +      -
    670E  LEU*     3.6    35.7    -      -       +      -
    671E  VAL*     4.5     7.0    -      -       +      -
    674E  ILE*     3.9    12.6    -      -       +      -
    692E  LEU*     4.3    17.0    -      -       +      -
    696E  SER*     3.4    23.3    -      -       -      +
    258F  LEU*     2.8    24.6    +      -       +      +
    259F  LYS*     3.8     2.7    -      -       -      +
    261F  PHE*     1.3    78.6    -      -       +      +
    263F  GLU*     1.3    60.1    +      -       -      +
    265F  VAL*     3.4     1.7    +      -       +      +
    266F  ILE*     2.8    51.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 263 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    674E  ILE*     4.0    24.5    -      -       +      +
    259F  LYS*     2.8    61.9    +      -       +      +
    260F  VAL*     3.7    18.8    +      -       -      +
    262F  LEU*     1.3    72.5    -      -       -      +
    264F  ASN*     1.3    59.9    +      -       -      +
    266F  ILE*     4.1     0.6    -      -       -      +
    267F  ARG*     2.9    47.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 264 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    260F  VAL*     3.1    39.6    +      -       -      +
    261F  PHE*     3.8     4.7    -      -       -      +
    263F  GLU*     1.3    79.5    -      -       -      +
    265F  VAL*     1.3    61.3    +      -       -      +
    267F  ARG*     3.0    28.5    +      -       -      +
    268F  ASP*     3.4    26.9    +      -       -      +
    293F  GLN*     3.4    18.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 265 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    692E  LEU*     3.8    24.0    -      -       +      -
    261F  PHE*     3.1    29.3    +      -       +      +
    262F  LEU*     4.1     3.4    -      -       -      +
    264F  ASN*     1.3    73.5    -      -       -      +
    266F  ILE*     1.3    62.1    +      -       -      +
    268F  ASP*     3.3     1.8    +      -       -      -
    269F  ALA*     2.8    26.6    +      -       +      +
    286F  VAL*     4.6     3.1    -      -       +      +
    289F  ALA*     3.5    19.5    -      -       +      +
    290F  LEU*     3.9    31.4    -      -       +      +
    293F  GLN*     3.2    29.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 266 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    671E  VAL*     3.9    29.6    -      -       +      +
    674E  ILE*     3.7    24.2    -      -       +      +
    675E  ALA*     3.8    31.2    -      -       +      +
    678E  PHE*     5.3     3.8    -      -       +      -
    684E  PHE*     5.4     2.2    -      -       +      -
    692E  LEU*     4.2    21.1    -      -       +      -
    262F  LEU*     2.8    40.1    +      -       +      +
    263F  GLU      4.1     1.6    -      -       -      +
    265F  VAL*     1.3    69.4    -      -       -      +
    267F  ARG*     1.3    59.3    +      -       -      +
    269F  ALA*     3.0     7.2    +      -       +      -
    270F  VAL*     2.7    42.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 267 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    678E  PHE*     3.5    44.5    -      -       +      -
    263F  GLU*     2.9    35.9    +      -       -      +
    264F  ASN*     3.0    38.2    +      -       -      +
    266F  ILE*     1.3    78.9    -      -       -      +
    268F  ASP*     1.3    62.0    +      -       -      +
    270F  VAL      3.5     0.9    +      -       -      -
    271F  THR*     2.8    36.7    +      -       -      +
   1496H  ARG      6.1     1.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 268 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    264F  ASN      3.4    13.0    +      -       -      +
    265F  VAL*     3.3     7.3    +      -       -      +
    266F  ILE      3.2     0.4    -      -       -      -
    267F  ARG*     1.3    85.5    -      -       -      +
    269F  ALA*     1.3    67.9    +      -       -      +
    271F  THR*     3.0    11.6    +      -       -      -
    272F  TYR*     3.1    19.7    +      -       +      -
    289F  ALA*     3.7    19.3    -      -       +      +
    292F  ARG*     3.0    34.7    +      -       -      +
    293F  GLN*     4.7     8.5    +      -       -      +
   1496H  ARG      5.6     0.2    -      -       -      +
   1497H  LEU*     3.6    23.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 269 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    692E  LEU*     5.7     0.9    -      -       +      -
    265F  VAL*     2.8    23.1    +      -       +      +
    266F  ILE*     3.5     9.0    -      -       +      +
    268F  ASP*     1.3    73.0    -      -       -      +
    270F  VAL*     1.3    63.5    +      -       +      +
    272F  TYR*     3.2     6.6    +      -       -      +
    273F  THR*     3.1    23.5    +      -       -      -
    281F  VAL*     4.3     9.0    -      -       +      -
    285F  ASP*     3.7    25.5    -      -       -      +
    286F  VAL*     4.2    15.5    -      -       +      +
    289F  ALA*     3.4     9.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 270 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    675E  ALA*     4.7     2.0    -      -       +      -
    678E  PHE*     3.5    32.1    -      -       +      -
    679E  LYS*     3.9     9.2    -      -       +      -
    682E  LEU*     3.5    36.6    -      -       +      -
    684E  PHE*     5.4     0.4    -      -       +      -
    266F  ILE*     2.7    37.8    +      -       +      +
    267F  ARG      3.9     0.2    -      -       -      +
    269F  ALA*     1.3    73.4    -      -       +      +
    271F  THR*     1.3    62.3    +      -       -      +
    273F  THR*     3.2     7.5    +      -       -      -
    274F  GLU*     3.0    31.1    +      -       +      +
    281F  VAL*     4.2    12.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 271 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    678E  PHE*     4.0    12.5    -      -       -      -
    267F  ARG*     2.8    22.6    +      -       -      +
    268F  ASP*     3.0     9.6    +      -       -      -
    270F  VAL*     1.3    78.1    -      -       -      +
    272F  TYR*     1.3    56.1    +      -       -      +
    274F  GLU*     3.5    10.5    +      -       +      +
    275F  HIS*     3.0    27.2    +      -       -      +
   1493H  THR*     3.7    27.3    -      -       +      +
   1496H  ARG*     4.9    14.8    -      -       +      +
   1497H  LEU*     3.9    21.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 272 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    268F  ASP*     3.1    25.9    +      -       +      -
    269F  ALA      3.2     4.0    +      -       -      +
    271F  THR*     1.3    73.7    -      -       -      +
    273F  THR*     1.3    66.1    +      -       -      +
    275F  HIS*     3.4     6.5    +      -       -      +
    276F  ALA*     3.2    22.5    +      -       -      +
    278F  ARG*     4.4     0.2    +      -       -      -
    285F  ASP*     3.6    26.5    -      -       +      +
    288F  TYR*     3.8    30.8    +      +       +      -
    289F  ALA*     3.9    10.8    -      -       -      -
    292F  ARG*     3.0    28.8    -      -       -      +
   1473H  GLU*     2.9    22.9    +      -       -      -
   1476H  ARG*     5.6     0.7    -      -       -      -
   1477H  LEU*     3.5    30.3    -      -       +      -
   1480H  TYR*     3.7    26.2    +      +       +      -
   1481H  ASN*     5.1     4.0    +      -       -      +
   1497H  LEU*     3.8    11.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 273 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    682E  LEU*     4.8     6.1    -      -       +      -
    269F  ALA      3.1    11.9    +      -       -      -
    270F  VAL*     3.2    12.1    +      -       -      -
    272F  TYR*     1.3    77.5    -      -       -      +
    274F  GLU*     1.3    65.0    +      -       +      +
    276F  ALA*     3.0    14.0    +      -       -      +
    277F  LYS      3.1     8.3    +      -       -      -
    278F  ARG*     3.2    36.4    +      -       -      +
    279F  LYS*     4.3     2.2    -      -       -      -
    280F  THR      3.6    27.1    -      -       -      +
    281F  VAL*     3.6    15.5    -      -       +      +
    285F  ASP*     2.8    23.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 274 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    678E  PHE*     4.2    10.6    -      -       -      -
    679E  LYS*     3.1    42.7    -      -       +      +
    682E  LEU*     5.7     2.9    -      -       +      -
    270F  VAL*     3.0    29.9    +      -       +      +
    271F  THR*     3.8     8.4    +      -       -      +
    273F  THR*     1.3    78.3    -      -       +      +
    275F  HIS*     1.3    57.6    +      -       -      +
    277F  LYS*     2.7    21.4    +      -       -      +
    278F  ARG      4.6     7.9    -      -       -      +
   1489H  ARG*     3.2    11.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 275 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    271F  THR      3.0    17.9    +      -       -      +
    272F  TYR      3.7     6.3    -      -       -      +
    273F  THR      3.3     0.2    -      -       -      -
    274F  GLU*     1.3    75.8    -      -       -      +
    276F  ALA*     1.3    58.7    +      -       -      +
    277F  LYS*     3.1     0.7    -      -       -      +
   1477H  LEU*     4.0    19.3    +      -       +      +
   1478H  ALA*     5.7     0.2    -      -       -      -
   1481H  ASN*     3.5    26.1    +      -       -      +
   1483H  ARG*     6.3     0.6    -      -       -      +
   1489H  ARG*     2.7    62.9    +      -       +      +
   1490H  GLU*     3.1    39.4    +      -       +      +
   1493H  THR*     2.8    34.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 276 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    272F  TYR      3.2    11.1    +      -       -      +
    273F  THR      3.0    10.5    +      -       -      +
    275F  HIS*     1.3    74.6    -      -       -      +
    277F  LYS*     1.3    72.0    +      -       -      +
    278F  ARG*     3.5    32.3    +      -       -      +
   1481H  ASN*     2.9    27.8    -      -       -      +
----------------------------------------------------------
 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