Contacts of the helix formed by residues 35 - 71 (chain A) in PDB entry 2C7N


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 CYS 35 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19A  CYS*     3.3    10.8    -      -       +      -
     23A  CYS*     3.7     5.8    -      -       -      -
     25A  TYR*     3.9    17.7    -      -       +      -
     26A  TYR      3.4    22.0    -      -       -      +
     27A  GLY*     3.8     1.0    -      -       -      -
     28A  ASN      4.6     0.4    -      -       -      +
     31A  TRP*     3.8     3.6    -      -       -      -
     34A  PHE*     1.3    77.0    -      -       -      +
     36A  SER*     1.3    62.5    +      -       -      +
     37A  LYS*     3.7    10.8    -      -       -      -
     38A  CYS*     3.3    15.0    +      -       -      -
     39A  TRP*     2.9    27.5    +      -       -      +
    499A   ZN      2.3    35.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 36 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31A  TRP*     3.3    35.7    -      -       -      -
     35A  CYS*     1.3    75.2    -      -       -      +
     37A  LYS*     1.3    72.6    +      -       -      +
     39A  TRP*     3.4     4.0    +      -       -      +
     40A  ARG*     3.1    38.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 37 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25A  TYR*     6.0     8.5    -      -       +      -
     35A  CYS*     3.4    10.1    -      -       -      -
     36A  SER*     1.3    85.7    +      -       -      +
     38A  CYS*     1.3    65.7    +      -       -      +
     39A  TRP      3.2     0.2    -      -       -      -
     40A  ARG*     3.9    30.3    +      -       -      +
     41A  GLU*     3.2    24.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 38 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19A  CYS*     3.5    11.9    -      -       -      -
     21A  LYS*     3.6    26.2    -      -       +      -
     23A  CYS*     4.1     8.5    -      -       -      -
     34A  PHE*     4.1     4.9    -      -       +      -
     35A  CYS*     3.3     4.6    +      -       -      +
     37A  LYS*     1.3    80.6    -      -       -      +
     39A  TRP*     1.3    64.3    +      -       -      +
     41A  GLU*     3.8    10.5    -      -       -      +
     42A  GLU*     3.1    28.2    +      -       +      +
    499A   ZN      2.4    35.0    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 39 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30A  ALA      5.6     0.7    -      -       -      -
     31A  TRP*     3.5    69.4    -      +       +      +
     32A  GLN*     4.8     7.5    -      -       +      +
     34A  PHE*     3.7    21.0    -      +       +      +
     35A  CYS      2.9    18.6    +      -       -      +
     36A  SER*     3.6     6.1    -      -       -      +
     38A  CYS*     1.3    80.8    -      -       -      +
     40A  ARG*     1.3    64.3    -      -       +      +
     42A  GLU*     3.4     3.1    +      -       +      +
     43A  TYR*     2.9    57.1    +      +       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 40 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36A  SER*     3.1    29.3    +      -       -      +
     37A  LYS*     3.9    33.7    +      -       -      +
     39A  TRP*     1.3    79.8    -      -       +      +
     41A  GLU*     1.3    62.7    +      -       -      +
     43A  TYR*     3.3    10.0    +      -       +      +
     44A  HIS*     2.9    61.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 41 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37A  LYS      3.2    16.3    +      -       -      +
     38A  CYS*     3.8    10.5    -      -       -      +
     40A  ARG*     1.3    78.7    -      -       -      +
     42A  GLU*     1.3    60.5    +      -       -      +
     44A  HIS*     3.3     9.2    +      -       -      +
     45A  LYS*     2.3    75.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 42 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21A  LYS*     3.1    33.9    +      -       -      -
     34A  PHE*     3.9    30.4    -      -       +      -
     38A  CYS      3.1    20.7    +      -       -      +
     39A  TRP*     3.8     6.1    -      -       +      +
     41A  GLU*     1.3    78.3    -      -       -      +
     43A  TYR*     1.3    67.2    +      -       -      +
     45A  LYS*     4.0    26.8    +      -       -      +
     46A  ALA*     3.1    24.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 43 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39A  TRP*     2.9    48.0    +      +       +      +
     40A  ARG*     3.5    10.8    -      -       +      +
     42A  GLU*     1.3    76.9    -      -       -      +
     44A  HIS*     1.3    88.1    +      +       -      +
     46A  ALA*     4.0     4.6    -      -       -      +
     47A  ARG*     2.6    81.9    +      -       -      +
     62B  GLN*     6.0     2.5    -      -       -      -
     63B  LYS*     4.1     5.4    +      -       -      -
     64B  GLU*     4.9     5.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 44 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40A  ARG*     2.9    46.1    +      -       +      +
     41A  GLU*     3.7     7.9    -      -       +      +
     43A  TYR*     1.3   100.6    -      +       -      +
     45A  LYS*     1.3    59.0    +      -       +      +
     47A  ARG*     3.4     5.4    +      -       -      +
     48A  GLN*     2.9    46.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 45 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  GLU*     2.3    58.1    +      -       +      +
     42A  GLU*     4.0    22.8    +      -       -      +
     44A  HIS*     1.3    73.3    -      -       +      +
     46A  ALA*     1.3    66.0    +      -       -      +
     48A  GLN*     3.3    17.2    +      -       -      +
     49A  LYS*     3.0    24.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 46 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42A  GLU      3.1    18.5    +      -       -      +
     43A  TYR*     4.0     4.9    -      -       -      +
     44A  HIS      3.3     0.2    -      -       -      -
     45A  LYS*     1.3    79.4    -      -       -      +
     47A  ARG*     1.3    57.5    +      -       +      +
     49A  LYS*     3.5     7.4    +      -       -      +
     50A  GLN*     3.0    28.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 47 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43A  TYR*     2.6    67.7    +      -       +      +
     44A  HIS*     3.8     4.5    -      -       -      +
     46A  ALA*     1.3    73.0    -      -       +      +
     48A  GLN*     1.3    67.4    +      -       +      +
     50A  GLN*     3.3    14.4    +      -       -      +
     51A  ILE*     2.9    40.5    +      -       +      +
     62B  GLN*     4.7     7.1    +      -       -      +
     63B  LYS      2.7    26.1    +      -       -      -
     64B  GLU*     3.4    31.1    +      -       -      +
     65B  SER*     3.6    14.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 48 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44A  HIS*     2.9    34.9    +      -       -      +
     45A  LYS*     3.6    17.0    -      -       -      +
     47A  ARG*     1.3    78.1    -      -       +      +
     49A  LYS*     1.3    61.5    +      -       -      +
     51A  ILE*     3.4     8.5    +      -       +      +
     52A  GLN*     3.0    44.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 49 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45A  LYS      3.0    16.3    +      -       -      +
     46A  ALA*     3.7     7.2    -      -       -      +
     48A  GLN*     1.3    76.9    -      -       -      +
     50A  GLN*     1.3    64.5    +      -       -      +
     52A  GLN*     3.3    13.2    +      -       -      +
     53A  GLU*     3.1    51.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 50 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46A  ALA      3.0    18.1    +      -       -      +
     47A  ARG*     3.3    18.5    +      -       -      +
     49A  LYS*     1.3    76.4    -      -       -      +
     51A  ILE*     1.3    69.6    +      -       -      +
     53A  GLU*     3.5    11.2    +      -       -      +
     54A  ASP*     2.7    63.3    +      -       -      +
     45B  PHE*     3.6    21.7    -      -       +      -
     46B  ALA*     4.2    18.8    -      -       +      -
     65B  SER*     5.8     0.3    -      -       -      -
     66B  THR      3.2    24.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 51 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47A  ARG*     2.9    33.0    +      -       +      +
     48A  GLN*     3.8     7.6    -      -       +      +
     50A  GLN*     1.3    88.8    -      -       -      +
     52A  GLN*     1.3    66.4    +      -       +      +
     55A  TRP*     3.1    19.6    +      -       +      +
      6B  LYS*     5.0     9.6    -      -       +      -
     66B  THR*     3.7    39.0    -      -       +      +
     68B  HIS*     3.4    22.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 52 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48A  GLN*     3.0    40.4    +      -       -      +
     49A  LYS*     3.8     9.6    -      -       -      +
     51A  ILE*     1.3    80.1    -      -       +      +
     53A  GLU*     1.3    62.5    +      -       +      +
     55A  TRP*     3.3     8.1    +      -       -      +
     56A  GLU*     3.1    32.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 53 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49A  LYS*     3.1    49.1    +      -       +      +
     50A  GLN*     3.8    11.3    -      -       -      +
     52A  GLN*     1.3    74.8    -      -       +      +
     54A  ASP*     1.3    64.9    +      -       -      +
     56A  GLU*     3.4    20.6    +      -       -      +
     57A  LEU*     3.0    27.2    +      -       -      +
     60A  ARG*     5.6     0.2    +      -       -      -
     47B  GLY*     6.0     2.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 54 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50A  GLN*     2.7    38.2    +      -       -      +
     51A  ILE      3.9     1.6    -      -       -      +
     52A  GLN      3.3     0.2    -      -       -      -
     53A  GLU*     1.3    78.8    -      -       -      +
     55A  TRP*     1.3    59.7    +      -       -      +
     57A  LEU*     3.5     3.6    +      -       -      +
     58A  ALA*     3.0    28.1    +      -       -      +
     44B  ILE*     3.8    18.7    -      -       +      +
     45B  PHE*     3.5     5.2    -      -       -      -
     46B  ALA*     2.7    25.6    +      -       -      -
     47B  GLY*     2.8    27.5    +      -       -      -
     66B  THR      4.4     1.0    -      -       -      +
     68B  HIS*     3.5    21.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 55 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51A  ILE*     3.1    15.7    +      -       +      +
     52A  GLN*     3.4    12.1    -      -       -      +
     53A  GLU      3.3     0.2    -      -       -      -
     54A  ASP*     1.3    72.2    -      -       -      +
     56A  GLU*     1.3    73.4    +      -       +      +
     58A  ALA*     3.3     3.3    +      -       -      +
     59A  GLU*     3.0    44.0    +      -       +      +
      6B  LYS*     3.5    24.9    -      -       +      -
      7B  THR      3.4    21.8    -      -       -      -
      8B  LEU*     3.5    34.0    -      -       +      +
     10B  GLY*     4.5     4.5    -      -       -      -
     68B  HIS*     3.6    32.0    -      +       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 56 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52A  GLN*     3.3    22.6    -      -       -      +
     53A  GLU*     3.5    20.5    +      -       -      +
     55A  TRP*     1.3    88.2    -      -       +      +
     57A  LEU*     1.3    62.9    +      -       -      +
     59A  GLU*     3.4     7.2    +      -       -      +
     60A  ARG*     3.0    28.5    +      -       -      +
     63A  ARG*     4.7     2.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 57 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53A  GLU      3.0    16.7    +      -       -      +
     54A  ASP*     3.7     4.5    -      -       -      +
     56A  GLU*     1.3    73.6    -      -       -      +
     58A  ALA*     1.3    61.5    +      -       -      +
     60A  ARG*     3.1    31.1    +      -       +      +
     61A  LEU*     2.8    42.2    +      -       +      +
     44B  ILE*     3.8    25.6    -      -       +      -
     47B  GLY*     3.6    40.2    -      -       -      +
     48B  LYS      4.1     3.1    -      -       -      +
     49B  GLN*     5.1     4.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 58 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54A  ASP      3.0    19.3    +      -       -      +
     55A  TRP*     3.3     6.5    +      -       -      +
     57A  LEU*     1.3    74.7    -      -       -      +
     59A  GLU*     1.3    58.2    +      -       -      +
     61A  LEU*     3.1     5.1    +      -       -      +
     62A  GLN*     2.8    29.5    +      -       -      +
      8B  LEU*     3.9    16.2    -      -       +      -
     44B  ILE*     4.0    12.6    -      -       +      -
     68B  HIS*     4.1    13.0    -      -       +      -
     69B  LEU      5.4     0.2    -      -       -      +
     70B  VAL*     3.6    26.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 59 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55A  TRP*     3.0    42.8    +      -       +      +
     56A  GLU*     3.7     9.2    -      -       -      +
     57A  LEU      3.3     0.2    -      -       -      -
     58A  ALA*     1.3    76.1    -      -       -      +
     60A  ARG*     1.4    63.6    +      -       -      +
     62A  GLN*     3.3     8.8    +      -       -      +
     63A  ARG*     3.1    49.2    +      -       -      +
      8B  LEU*     3.6    31.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 60 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53A  GLU      5.6     0.2    +      -       -      -
     56A  GLU*     3.0    17.2    +      -       -      +
     57A  LEU*     3.1    41.8    +      -       +      +
     59A  GLU*     1.4    78.3    -      -       -      +
     61A  LEU*     1.3    63.3    +      -       +      +
     63A  ARG*     3.4    23.9    +      -       +      +
     64A  GLU*     3.1    23.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 61 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57A  LEU*     2.8    35.2    +      -       +      +
     58A  ALA      3.4     6.3    -      -       -      +
     60A  ARG*     1.3    71.5    -      -       +      +
     62A  GLN*     1.3    59.6    +      -       -      +
     64A  GLU*     3.3    22.5    +      -       -      +
     65A  GLU*     3.0    31.1    +      -       +      +
     42B  ARG*     4.4    16.1    +      -       +      +
     44B  ILE*     3.5    33.4    -      -       +      -
     49B  GLN*     3.7    39.0    -      -       +      +
     70B  VAL*     4.2    13.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 62 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58A  ALA      2.8     8.5    +      -       -      -
     59A  GLU*     3.4    15.0    -      -       -      +
     60A  ARG      3.3     0.2    -      -       -      -
     61A  LEU*     1.3    72.2    -      -       -      +
     63A  ARG*     1.3    53.6    +      -       +      +
     65A  GLU*     3.2     7.7    +      -       -      +
     66A  GLU*     2.8    67.0    +      -       +      +
      8B  LEU*     3.3    33.0    -      -       +      +
     70B  VAL*     3.4    23.2    -      -       -      +
     71B  LEU*     4.4     5.5    +      -       -      +
     73B  LEU*     4.4    15.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 63 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56A  GLU      4.7     2.4    +      -       -      -
     59A  GLU*     3.1    41.6    +      -       -      +
     60A  ARG*     3.6    34.0    -      -       +      +
     62A  GLN*     1.3    76.7    -      -       +      +
     64A  GLU*     1.3    60.7    +      -       -      +
     66A  GLU*     3.3    10.9    +      -       +      +
     67A  GLU*     3.1    29.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 64 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60A  ARG*     3.1    15.2    +      -       +      +
     61A  LEU*     3.4    26.2    -      -       -      +
     62A  GLN      3.3     0.2    -      -       -      -
     63A  ARG*     1.3    76.6    -      -       -      +
     65A  GLU*     1.3    64.1    +      -       -      +
     67A  GLU*     3.4     8.2    +      -       -      +
     68A  ALA*     3.1    24.9    +      -       +      +
     42B  ARG*     4.5    19.6    +      -       -      -
     49B  GLN*     5.3     2.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 65 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61A  LEU      3.0    18.9    +      -       -      +
     62A  GLN*     3.3    12.1    -      -       -      +
     64A  GLU*     1.3    80.2    -      -       -      +
     66A  GLU*     1.3    61.5    +      -       -      +
     68A  ALA*     3.5     7.0    +      -       -      +
     69A  PHE*     3.0    27.2    +      -       -      +
     42B  ARG*     2.8    38.0    +      -       -      +
     70B  VAL*     4.6     5.6    -      -       +      -
     71B  LEU      3.7    15.9    -      -       -      +
     72B  ARG*     3.5    14.3    -      -       -      +
     73B  LEU*     3.3    34.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 66 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62A  GLN*     2.8    49.0    +      -       +      +
     63A  ARG*     3.3    12.3    +      -       +      +
     65A  GLU*     1.3    72.4    -      -       -      +
     67A  GLU*     1.3    58.2    +      -       +      +
     69A  PHE*     4.0     4.9    -      -       -      +
     70A  ALA*     3.1    29.6    +      -       -      +
     73B  LEU*     3.7    18.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 67 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63A  ARG*     3.1    19.2    +      -       +      +
     64A  GLU*     3.7    10.3    -      -       -      +
     65A  GLU      3.3     0.2    -      -       -      -
     66A  GLU*     1.3    74.0    -      -       +      +
     68A  ALA*     1.3    61.6    +      -       -      +
     70A  ALA*     3.6     6.5    +      -       -      +
     71A  SER*     2.9    35.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 68 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  GLU*     3.1    14.8    +      -       +      +
     65A  GLU*     4.0     9.0    -      -       -      +
     67A  GLU*     1.3    76.5    -      -       -      +
     69A  PHE*     1.3    65.8    +      -       -      +
     71A  SER*     3.4    13.8    +      -       -      -
     72A  SER*     3.1    15.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 69 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65A  GLU      3.0    18.7    +      -       -      +
     66A  GLU*     4.0     5.2    -      -       -      +
     68A  ALA*     1.3    76.9    -      -       -      +
     70A  ALA*     1.3    57.7    +      -       -      +
     72A  SER*     3.0    25.3    +      -       -      -
     73A  GLN      3.4     7.8    +      -       -      -
     73B  LEU*     3.5    44.0    -      -       +      +
     74B  ARG      3.9    14.1    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 70 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66A  GLU      3.1    19.8    +      -       -      +
     67A  GLU*     3.7     8.5    -      -       -      +
     69A  PHE*     1.3    74.1    -      -       -      +
     71A  SER*     1.3    56.7    +      -       -      +
     72A  SER      3.0     9.3    +      -       -      -
     73A  GLN      3.4     9.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 71 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67A  GLU*     2.9    24.3    +      -       -      +
     68A  ALA*     3.7     9.4    -      -       -      -
     69A  PHE      3.3     1.0    -      -       -      -
     70A  ALA*     1.3    74.5    -      -       -      +
     72A  SER*     1.3    58.8    +      -       -      +
----------------------------------------------------------
 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