Contacts of the helix formed by residues 28 - 60 (chain A) in PDB entry 2KS9


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 PRO 28 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24A  GLN      4.7     0.4    -      -       -      +
     27A  GLN*     1.3    86.4    -      -       -      +
     29A  ALA*     1.3    63.9    +      -       -      +
     30A  TRP*     3.2    24.7    -      -       +      +
     31A  GLN*     2.8    43.9    +      -       +      +
     32A  ILE*     2.9    18.4    -      -       -      +
    285A  GLN*     5.1     1.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 29 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24A  GLN*     5.0    22.1    +      -       +      +
     27A  GLN      3.6     2.2    +      -       -      -
     28A  PRO*     1.3    69.3    -      -       -      +
     30A  TRP*     1.3    62.1    +      -       -      +
     32A  ILE*     2.8    37.4    -      -       -      +
     33A  VAL*     3.2     7.7    +      -       +      +
     96A  ASN*     5.4     4.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 30 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28A  PRO*     3.2    30.1    -      -       +      +
     29A  ALA*     1.3    78.9    -      -       -      +
     31A  GLN*     1.3    84.5    +      -       +      +
     33A  VAL*     2.7    21.9    -      -       +      +
     34A  LEU*     2.7    74.6    +      -       +      -
     35A  TRP*     4.8     0.7    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 31 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27A  GLN*     2.7    48.7    +      -       -      +
     28A  PRO*     2.8    33.5    +      -       +      +
     30A  TRP*     1.3   112.2    -      -       +      +
     32A  ILE*     1.3    61.2    +      -       -      +
     34A  LEU*     4.0     0.4    -      -       -      -
     35A  TRP*     2.7    43.3    +      -       +      -
    285A  GLN*     3.0    26.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 32 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23A  ASN*     5.0     5.8    -      -       +      +
     24A  GLN*     5.1     2.9    -      -       -      -
     27A  GLN*     3.1    33.0    -      -       +      +
     28A  PRO      2.9    30.7    -      -       -      +
     29A  ALA*     2.8    14.5    +      -       -      +
     31A  GLN*     1.3    77.4    -      -       -      +
     33A  VAL*     1.3    70.1    +      -       +      +
     35A  TRP*     3.2     3.5    +      -       -      -
     36A  ALA*     3.0    20.3    +      -       -      +
     92A  TYR*     4.9     5.8    -      -       -      +
     93A  ALA*     2.7    32.8    -      -       -      +
     94A  VAL*     4.0     7.0    -      -       -      +
     96A  ASN*     2.7    33.2    -      -       +      +
    177A  ARG*     5.3     2.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 33 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29A  ALA*     3.9     9.9    -      -       +      +
     30A  TRP*     2.7    35.4    +      -       +      +
     32A  ILE*     1.3    87.7    -      -       +      +
     34A  LEU*     1.3    54.1    +      -       -      +
     36A  ALA*     3.4     8.1    -      -       +      +
     37A  ALA*     2.7    36.3    +      -       +      +
     94A  VAL*     4.6     8.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 34 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30A  TRP*     2.7    50.6    +      -       +      -
     31A  GLN      3.3     7.4    -      -       -      +
     32A  ILE      3.1     0.2    -      -       -      -
     33A  VAL*     1.3    79.4    -      -       -      +
     35A  TRP*     1.3    87.4    +      -       +      +
     37A  ALA*     3.1    12.0    +      -       +      +
     38A  ALA*     3.0    22.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 35 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27A  GLN*     4.5     5.6    -      -       -      -
     31A  GLN*     2.7    57.2    +      -       +      +
     32A  ILE      3.2     3.3    +      -       -      +
     34A  LEU*     1.3   100.9    -      -       +      +
     36A  ALA*     1.3    66.1    -      -       -      +
     38A  ALA*     3.2     6.6    +      -       +      +
     39A  TYR      3.1    17.5    +      -       -      -
     93A  ALA*     4.7     0.9    -      -       +      -
    177A  ARG*     4.1    16.6    -      -       -      +
    285A  GLN*     4.7    12.8    -      -       -      -
    288A  LEU*     2.8    38.6    -      -       +      +
    289A  ALA*     5.0     8.3    -      -       +      +
    292A  TRP*     3.2    53.9    -      +       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 36 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32A  ILE      3.0    10.8    +      -       -      +
     33A  VAL      3.4     7.2    -      -       -      +
     35A  TRP*     1.3    77.0    -      -       -      +
     37A  ALA*     1.3    61.2    +      -       -      +
     39A  TYR*     3.2     1.5    +      -       -      -
     40A  THR      2.9     8.7    +      -       -      -
     90A  PHE*     2.8    40.9    -      -       +      -
     93A  ALA*     3.8    11.1    -      -       +      +
     94A  VAL*     3.0    38.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 37 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33A  VAL      2.7    17.4    +      -       -      +
     34A  LEU*     3.1    17.5    +      -       +      +
     36A  ALA*     1.3    73.9    -      -       -      +
     38A  ALA*     1.3    60.4    +      -       -      +
     40A  THR*     2.7    31.4    -      -       +      +
     41A  VAL*     3.1    11.3    +      -       +      +
     90A  PHE*     4.9     0.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 38 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  LEU*     3.0    13.5    +      -       +      +
     35A  TRP*     3.2    15.0    +      -       +      +
     37A  ALA*     1.3    74.9    -      -       -      +
     39A  TYR*     1.3    54.6    +      -       -      +
     41A  VAL*     2.7    30.6    -      -       -      +
     42A  ILE*     2.7    26.7    -      -       +      +
    292A  TRP*     4.6     7.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 39 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35A  TRP      3.1     5.3    +      -       -      -
     36A  ALA      3.7     7.0    -      -       -      +
     38A  ALA*     1.3    73.8    -      -       -      +
     40A  THR*     1.3    67.1    +      -       -      +
     42A  ILE*     3.1    27.9    +      -       +      +
     43A  VAL*     2.9    27.7    +      -       -      +
     81A  MET*     4.6     0.7    -      -       +      +
     85A  ASN*     3.1    10.2    +      -       -      -
     86A  THR*     2.8    46.0    -      -       -      +
     89A  ASN*     2.9    34.7    +      -       +      -
     90A  PHE*     3.7    11.9    -      -       +      -
    292A  TRP*     2.9    31.0    -      +       +      -
    295A  MET*     2.8    47.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 40 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36A  ALA      2.9    11.9    +      -       -      -
     37A  ALA*     2.7    33.7    -      -       +      +
     39A  TYR*     1.3    75.7    -      -       -      +
     41A  VAL*     1.3    76.7    +      -       +      +
     43A  VAL*     3.2    21.5    +      -       -      +
     44A  VAL*     3.5    11.7    +      -       -      +
     90A  PHE*     4.0    17.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 41 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37A  ALA*     3.5    11.4    -      -       +      +
     38A  ALA*     2.7    31.6    -      -       -      +
     40A  THR*     1.3    89.0    -      -       +      +
     42A  ILE*     1.3    67.9    +      -       +      +
     44A  VAL*     3.1    18.6    +      -       -      +
     45A  THR*     3.2    12.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 42 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  ALA*     2.7    30.3    +      -       +      +
     39A  TYR*     3.3    38.4    -      -       +      +
     41A  VAL*     1.3    87.4    -      -       +      +
     43A  VAL*     1.3    59.4    +      -       -      +
     45A  THR*     2.9    12.8    -      -       +      +
     46A  SER*     2.7    48.3    +      -       -      +
     82A  ALA*     6.3     0.2    -      -       -      -
     86A  THR*     4.8     4.3    -      -       -      +
    292A  TRP*     4.9     4.5    -      -       +      +
    295A  MET*     4.7     6.5    -      -       +      +
    296A  SER*     4.8    16.4    -      -       -      +
    298A  THR*     4.0    12.3    -      -       +      -
    299A  MET*     5.2     2.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 43 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39A  TYR*     2.9    24.7    +      -       +      +
     40A  THR*     3.2    11.2    +      -       -      +
     42A  ILE*     1.3    76.8    -      -       -      +
     44A  VAL*     1.3    63.7    +      -       +      +
     46A  SER*     4.8     2.7    -      -       -      -
     47A  VAL*     2.8    46.7    +      -       +      +
     82A  ALA*     4.1     9.4    -      -       -      +
     86A  THR*     3.1    32.3    -      -       +      +
     87A  VAL*     5.4     7.2    -      -       +      -
     90A  PHE*     5.7     3.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 44 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40A  THR*     3.8    13.9    -      -       -      +
     41A  VAL*     3.1     9.7    +      -       -      +
     43A  VAL*     1.3    80.7    -      -       +      +
     45A  THR*     1.3    64.8    +      -       -      +
     47A  VAL*     3.9     1.5    -      -       -      +
     48A  VAL*     3.0    42.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 45 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  VAL      3.2     5.0    +      -       -      +
     42A  ILE*     2.9    27.1    -      -       +      +
     44A  VAL*     1.3    81.4    -      -       -      +
     46A  SER*     1.3    74.7    +      -       -      +
     48A  VAL*     3.9     2.8    -      -       -      +
     49A  GLY*     2.9    24.1    +      -       -      -
    299A  MET*     2.8    60.0    -      -       +      +
    302A  PRO*     5.7     0.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 46 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42A  ILE*     2.7    30.5    +      -       -      +
     45A  THR*     1.3    75.3    -      -       -      +
     47A  VAL*     1.3    62.4    +      -       -      +
     49A  GLY*     5.4     0.2    -      -       -      -
     50A  ASN*     2.6    34.1    +      -       -      +
     82A  ALA*     3.6    23.0    -      -       -      +
    298A  THR*     2.8    38.8    -      -       -      +
    299A  MET*     3.9     6.8    +      -       -      +
    302A  PRO*     6.2     0.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 47 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43A  VAL*     2.8    35.5    +      -       +      +
     44A  VAL*     3.9     2.7    -      -       -      +
     46A  SER*     1.3    76.9    -      -       -      +
     48A  VAL*     1.3    68.1    +      -       +      +
     50A  ASN*     4.3     1.4    -      -       -      +
     51A  VAL*     3.0    29.5    +      -       +      +
     79A  ALA*     6.0     1.8    -      -       -      +
     82A  ALA*     3.3    25.8    -      -       +      +
     83A  ALA*     4.9     2.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 48 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44A  VAL*     3.0    30.4    +      -       +      +
     45A  THR*     4.0     2.7    -      -       -      +
     47A  VAL*     1.3    79.3    -      -       +      +
     49A  GLY*     1.3    61.6    +      -       -      +
     51A  VAL*     2.7    27.5    -      -       +      +
     52A  VAL*     2.7    26.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 49 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45A  THR      2.9    16.1    +      -       -      -
     48A  VAL*     1.3    79.4    -      -       -      +
     50A  ASN*     1.3    59.7    +      -       -      +
     52A  VAL*     3.3     8.9    +      -       -      +
     53A  VAL*     3.1    25.6    +      -       -      +
    302A  PRO*     3.4    24.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 50 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46A  SER*     2.6    26.3    +      -       -      +
     47A  VAL*     4.3     1.3    -      -       -      +
     49A  GLY*     1.3    73.3    -      -       -      +
     51A  VAL*     1.3    66.4    +      -       -      +
     53A  VAL*     3.3     5.0    +      -       -      +
     54A  MET*     3.0    24.1    +      -       -      +
     75A  ALA*     3.8    22.1    -      -       -      +
     78A  GLU*     3.2    28.7    -      -       +      +
     79A  ALA*     4.5    11.0    -      -       +      +
    298A  THR*     3.0    18.7    +      -       -      +
    301A  ASN*     3.4    27.5    +      -       -      +
    302A  PRO*     3.7     6.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 51 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47A  VAL*     3.0    23.3    +      -       +      +
     48A  VAL*     2.7    32.1    -      -       +      +
     50A  ASN*     1.3    76.0    -      -       -      +
     52A  VAL*     1.3    59.0    +      -       +      +
     54A  MET*     2.8    25.8    -      -       +      +
     55A  TRP*     2.6    48.5    +      -       +      +
     79A  ALA*     6.1     0.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 52 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48A  VAL*     2.7    37.2    +      -       +      +
     49A  GLY*     3.4     9.4    -      -       -      +
     51A  VAL*     1.3    87.2    -      -       +      +
     53A  VAL*     1.3    58.0    -      -       -      +
     55A  TRP*     3.8     5.5    -      -       +      +
     56A  ILE*     2.7    32.2    +      -       +      +
    316A  PHE*     3.1    33.0    -      -       +      +
    319A  ALA*     6.1     2.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 53 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49A  GLY      3.1    15.6    +      -       -      +
     50A  ASN*     3.7     6.7    -      -       -      +
     51A  VAL      3.2     0.4    -      -       -      -
     52A  VAL*     1.3    76.5    -      -       +      +
     54A  MET*     1.3    62.8    +      -       -      +
     56A  ILE*     2.8    26.3    -      -       -      +
     57A  ILE*     3.1    18.1    +      -       +      +
     71A  LEU*     5.1     2.9    -      -       +      +
     75A  ALA*     4.3    14.8    -      -       +      -
    301A  ASN*     5.0     1.1    -      -       -      +
    302A  PRO*     4.1    11.9    -      -       +      -
    305A  TYR*     3.7    46.9    -      -       +      +
    312A  PHE*     4.5    12.3    -      -       +      -
    316A  PHE*     3.9     9.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 54 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50A  ASN      3.0     8.3    +      -       -      +
     51A  VAL*     2.8    47.6    -      -       +      +
     53A  VAL*     1.3    80.5    -      -       -      +
     55A  TRP*     1.3    73.7    +      -       +      +
     57A  ILE*     4.4     4.0    -      -       -      -
     58A  LEU*     2.7    51.0    +      -       +      +
     72A  VAL*     5.2     6.1    -      -       +      +
     75A  ALA*     4.6    11.0    -      -       +      +
     76A  PHE*     6.0     0.7    -      -       -      +
     79A  ALA*     5.8     8.5    -      -       -      -
----------------------------------------------------------
 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  VAL*     2.6    33.3    +      -       +      +
     52A  VAL*     3.8     5.6    -      -       +      +
     54A  MET*     1.3    84.6    -      -       +      +
     56A  ILE*     1.3    54.4    +      -       -      +
     58A  LEU*     3.7     4.1    -      -       +      +
     59A  ALA*     2.7    53.5    +      -       +      +
    319A  ALA*     4.6    17.6    -      -       +      +
    343A  GLN*     6.0     1.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 56 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52A  VAL*     2.7    21.6    +      -       +      +
     53A  VAL*     2.8    26.2    -      -       -      +
     55A  TRP*     1.3    76.6    -      -       -      +
     57A  ILE*     1.3    69.3    +      -       +      +
     59A  ALA*     3.0     2.5    +      -       -      -
     60A  HIS*     2.6    56.0    +      -       +      +
     63A  MET*     4.5     2.7    -      -       -      -
    312A  PHE*     3.6     6.3    -      -       +      +
    315A  GLY      3.3     4.3    -      -       -      -
    316A  PHE*     2.9    79.9    -      -       +      +
    319A  ALA*     5.1     3.6    -      -       +      -
    341A  TYR*     3.6     9.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 57 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53A  VAL*     3.3    19.5    -      -       +      +
     54A  MET      3.7     4.3    -      -       -      +
     56A  ILE*     1.3    82.0    -      -       +      +
     58A  LEU*     1.3    65.6    +      -       +      +
     60A  HIS      2.8     7.1    -      -       -      +
     63A  MET*     3.5    28.5    -      -       +      +
     64A  ARG*     2.7    34.0    +      -       -      +
     68A  ASN*     3.3    22.4    -      -       +      +
     71A  LEU*     4.9     3.1    -      -       +      -
     72A  VAL*     2.9    41.3    -      -       +      +
    312A  PHE*     3.3    34.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 58 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54A  MET*     2.7    45.8    +      -       +      +
     55A  TRP*     3.9     3.4    -      -       -      +
     57A  ILE*     1.3    87.6    -      -       +      +
     59A  ALA*     1.3    63.7    +      -       -      +
     60A  HIS      4.3     0.3    -      -       -      -
     61A  LYS*     4.7     0.9    +      -       -      -
     64A  ARG*     3.8    15.3    +      -       -      +
     72A  VAL*     4.1    14.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 59 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55A  TRP*     2.7    44.6    +      -       +      +
     56A  ILE      3.5     2.9    -      -       -      +
     58A  LEU*     1.3    77.0    -      -       -      +
     60A  HIS*     1.3    62.4    +      -       +      +
     61A  LYS*     3.5     0.7    +      -       -      -
    319A  ALA*     5.9     0.4    -      -       +      -
    342A  LEU*     4.5     8.1    -      -       +      -
    343A  GLN*     2.7    48.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 60 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56A  ILE*     2.6    42.4    +      -       +      +
     57A  ILE      2.8     6.3    -      -       -      +
     59A  ALA*     1.3    74.2    -      -       +      +
     61A  LYS*     1.3    58.3    +      -       -      +
     63A  MET*     3.1     6.8    +      -       +      -
     64A  ARG*     2.8    24.2    +      -       -      -
    315A  GLY      2.8    33.1    +      -       -      -
    318A  HIS*     3.7     7.9    -      -       +      -
    319A  ALA*     4.1     6.6    -      -       +      +
    341A  TYR*     2.6    57.9    +      +       +      -
    342A  LEU*     2.8    37.1    -      -       +      +
----------------------------------------------------------
 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