Contacts of the helix formed by residues 27 - 54 (chain A) in PDB entry 1UPX


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 LYS 27 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4A  MET*     4.4     0.7    -      -       -      -
     21A  VAL*     4.6     9.0    -      -       +      -
     25A  GLY      3.2    11.8    +      -       -      +
     26A  LYS*     1.3    76.0    -      -       -      +
     28A  PRO*     1.3    76.9    -      -       +      +
     29A  GLU*     3.3     4.0    -      -       +      +
     30A  THR*     3.1    18.3    +      -       -      +
     31A  ALA*     2.9    19.8    +      -       -      +
     79A  PHE*     5.5     0.2    -      -       -      -
    328A  PHE*     6.5     0.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 28 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3A  ALA*     3.7    39.0    -      -       +      +
      4A  MET*     4.0    13.3    -      -       +      +
     20A  GLN      3.5    21.8    -      -       -      +
     21A  VAL*     4.3     9.2    -      -       +      -
     27A  LYS*     1.3    88.9    -      -       +      +
     29A  GLU*     1.3    61.7    +      -       +      +
     31A  ALA*     3.3     2.6    +      -       +      +
     32A  ALA*     2.9    27.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 29 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27A  LYS*     3.3     2.7    -      -       +      +
     28A  PRO*     1.3    80.3    -      -       +      +
     30A  THR*     1.3    60.3    +      -       -      +
     32A  ALA*     3.3     2.9    +      -       -      +
     33A  LEU*     2.9    34.2    +      -       +      +
     81A  ASP*     4.1    14.8    -      -       -      +
    119A  LYS*     4.6    13.3    +      -       -      +
    123A  LEU*     3.6    37.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 30 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26A  LYS*     3.9    16.8    -      -       +      -
     27A  LYS*     3.1    24.6    +      -       -      +
     29A  GLU*     1.3    77.9    -      -       -      +
     31A  ALA*     1.3    62.5    +      -       -      +
     33A  LEU*     3.2     4.5    +      -       -      +
     34A  GLN*     3.0    35.4    +      -       -      +
     79A  PHE*     3.9    22.9    +      -       +      +
     81A  ASP*     2.6    29.8    +      -       -      +
     84A  LEU*     3.7    17.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 31 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4A  MET*     3.7    35.7    -      -       +      -
      5A  PHE      5.5     1.6    -      -       -      +
      6A  CYS*     5.3     3.1    -      -       +      -
     26A  LYS*     3.8    19.2    -      -       -      +
     27A  LYS      2.9    11.9    +      -       -      +
     28A  PRO      3.5     8.3    -      -       -      +
     30A  THR*     1.3    75.3    -      -       -      +
     32A  ALA*     1.3    57.7    +      -       -      +
     34A  GLN*     3.3     4.7    +      -       -      +
     35A  ASP*     2.9    36.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 32 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3A  ALA      5.8     2.0    -      -       -      +
     28A  PRO      2.9    17.5    +      -       -      +
     29A  GLU*     3.5     5.2    -      -       -      +
     30A  THR      3.2     0.4    -      -       -      -
     31A  ALA*     1.3    77.8    -      -       -      +
     33A  LEU*     1.3    58.4    +      -       -      +
     35A  ASP*     3.1     5.6    +      -       -      -
     36A  ALA*     2.9    24.4    +      -       -      +
    123A  LEU*     3.6    21.1    -      -       +      +
    126A  ALA*     3.1    31.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 33 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29A  GLU*     2.9    21.7    +      -       +      +
     30A  THR      3.2     4.2    +      -       -      +
     32A  ALA*     1.3    74.8    -      -       -      +
     34A  GLN*     1.3    58.0    +      -       -      +
     36A  ALA*     3.3     4.8    +      -       -      +
     37A  LEU*     2.8    30.0    +      -       -      +
     81A  ASP*     3.5    46.7    -      -       +      +
     84A  LEU*     4.0    15.2    -      -       +      +
     85A  ALA*     4.3     5.6    -      -       +      +
     88A  VAL*     4.0     4.3    -      -       +      +
    119A  LYS*     4.1    18.4    -      -       +      -
    122A  MET*     3.9    39.3    -      -       +      -
    123A  LEU*     3.9    13.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 34 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26A  LYS*     3.2    39.6    +      -       -      +
     30A  THR*     3.0    21.2    +      -       -      +
     31A  ALA*     3.7     5.2    -      -       -      +
     32A  ALA      3.2     0.2    -      -       -      -
     33A  LEU*     1.3    74.6    -      -       -      +
     35A  ASP*     1.3    58.3    -      -       -      +
     37A  LEU*     3.2     4.6    +      -       -      +
     38A  ILE*     2.9    34.8    +      -       -      +
     72A  ALA      3.9     6.9    +      -       -      -
     73A  THR*     3.5    42.2    -      -       +      +
     74A  ILE      5.3     1.8    +      -       -      +
     78A  ASN      2.9    28.5    +      -       -      +
     79A  PHE*     6.2     0.2    -      -       -      -
     84A  LEU*     3.9    14.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 35 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5A  PHE      4.3    18.9    +      -       -      +
      6A  CYS*     6.1     0.5    -      -       -      +
     31A  ALA*     2.9    23.5    +      -       -      +
     32A  ALA*     3.1    11.1    +      -       -      +
     34A  GLN*     1.3    76.8    -      -       -      +
     36A  ALA*     1.3    60.5    +      -       -      +
     38A  ILE*     3.4     6.8    +      -       -      +
     39A  TYR*     3.0    23.2    +      -       -      +
    126A  ALA*     4.3    12.8    -      -       +      +
    129A  VAL*     4.2     6.9    -      -       +      +
    130A  GLY*     3.9    27.5    -      -       -      +
    131A  VAL*     5.3     3.9    +      -       -      +
    144A  TRP*     5.5     7.4    -      -       -      -
----------------------------------------------------------
 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  ALA      2.9    15.4    +      -       -      +
     33A  LEU*     3.7     7.6    -      -       -      +
     35A  ASP*     1.3    76.4    -      -       -      +
     37A  LEU*     1.3    62.0    +      -       -      +
     39A  TYR*     3.2     8.2    +      -       -      +
     40A  VAL*     3.0    28.6    +      -       -      +
     88A  VAL*     4.3    13.9    -      -       +      -
    114A  TRP*     5.2     8.2    -      -       +      -
    122A  MET*     4.0    26.2    -      -       +      +
    125A  LYS*     5.6     1.3    -      -       +      -
    126A  ALA*     4.3     4.4    -      -       +      +
    129A  VAL*     4.6     5.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 37 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33A  LEU      2.8    17.3    +      -       -      +
     34A  GLN      3.2     5.6    +      -       -      +
     36A  ALA*     1.3    73.4    -      -       -      +
     38A  ILE*     1.3    60.4    +      -       +      +
     40A  VAL*     3.5     3.9    -      -       +      +
     41A  THR*     2.7    32.9    +      -       -      -
     69A  ASN*     3.6    50.5    -      -       +      +
     72A  ALA*     4.6     0.9    -      -       +      -
     73A  THR*     4.0    10.3    -      -       +      -
     84A  LEU*     4.3    18.6    -      -       +      +
     87A  ARG*     3.7    44.9    -      -       +      +
     88A  VAL*     3.7    12.0    -      -       +      +
     91A  THR*     3.9     2.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 38 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  GLN      2.9    20.3    +      -       -      +
     35A  ASP*     3.8     6.1    -      -       -      +
     36A  ALA      3.3     0.2    -      -       -      -
     37A  LEU*     1.3    74.4    -      -       -      +
     39A  TYR*     1.3    63.6    +      -       -      +
     41A  THR*     3.2     6.2    +      -       -      +
     42A  LYS*     2.9    53.2    +      -       +      +
     69A  ASN      4.7     1.6    -      -       -      +
     70A  LEU*     3.5    31.2    -      -       +      +
     73A  THR*     3.4    33.9    -      -       +      +
    144A  TRP*     4.3    16.4    -      -       +      -
    147A  THR*     4.3     6.1    -      -       +      -
    151A  LYS*     4.0    12.3    -      -       -      +
----------------------------------------------------------
 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  ASP      3.0    13.9    +      -       -      +
     36A  ALA*     3.2     9.2    +      -       -      +
     38A  ILE*     1.3    79.3    -      -       -      +
     40A  VAL*     1.3    71.2    +      -       +      +
     42A  LYS*     3.2     7.8    +      -       +      +
     43A  GLY      3.1    16.5    +      -       -      -
    110A  ASP*     2.6    39.3    +      -       -      +
    111A  ALA*     3.3    38.0    +      -       +      +
    114A  TRP*     4.6     6.1    -      +       +      -
    125A  LYS*     3.7    16.8    +      -       +      -
    129A  VAL*     3.5    42.8    -      -       +      +
    182A  LEU*     4.3    21.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 40 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36A  ALA      3.0    17.7    +      -       -      +
     37A  LEU*     3.5    14.6    -      -       +      +
     39A  TYR*     1.3    79.9    -      -       +      +
     41A  THR*     1.3    57.5    +      -       -      +
     43A  GLY*     3.6     1.4    -      -       -      +
     44A  LEU*     2.9    27.7    +      -       -      +
     88A  VAL*     4.4    12.6    -      -       +      +
     91A  THR*     3.7    23.2    -      -       +      +
     92A  CYS*     4.0     6.3    -      -       -      -
     95A  LYS*     3.7    27.7    -      -       -      +
    111A  ALA      4.3     5.2    -      -       -      +
    114A  TRP*     3.6    37.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 41 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37A  LEU      2.7    21.6    +      -       -      -
     38A  ILE*     3.2     8.5    +      -       -      -
     40A  VAL*     1.3    74.8    -      -       -      +
     42A  LYS*     1.3    60.7    +      -       -      +
     44A  LEU*     3.3     3.9    +      -       +      +
     45A  GLY*     2.9    25.1    +      -       -      -
     66A  VAL*     3.9    34.2    -      -       +      +
     69A  ASN*     2.9    37.9    +      -       +      +
     70A  LEU*     4.6     9.0    -      -       +      -
     91A  THR*     4.2     5.4    -      -       -      -
    178A  LEU*     4.1    12.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 42 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  ILE*     2.9    33.7    +      -       +      +
     39A  TYR*     3.2     9.4    +      -       -      +
     41A  THR*     1.3    76.8    -      -       -      +
     43A  GLY*     1.3    61.1    +      -       -      +
     45A  GLY*     3.2     2.3    +      -       -      -
     46A  GLN*     3.0    20.8    +      -       -      +
    143A  ARG*     5.0     1.2    +      -       -      +
    144A  TRP*     3.8    27.5    -      -       -      -
    147A  THR*     3.1    27.9    +      -       -      -
    178A  LEU*     3.6    34.8    -      -       +      +
    179A  ALA*     4.0     6.9    -      -       -      -
    181A  THR*     3.1    25.4    +      -       -      +
    182A  LEU*     3.6    32.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 43 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39A  TYR      3.1    10.9    +      -       -      -
     40A  VAL      3.3     3.8    +      -       -      -
     41A  THR      3.2     0.4    -      -       -      -
     42A  LYS*     1.3    77.0    -      -       -      +
     44A  LEU*     1.3    60.8    +      -       -      +
     46A  GLN*     3.2     6.3    +      -       -      +
     47A  ILE*     3.1    25.6    +      -       -      +
     95A  LYS*     4.2     1.6    -      -       -      -
    109A  SER*     4.5     3.1    -      -       -      -
    111A  ALA*     3.6     9.3    -      -       -      +
    112A  ALA*     3.6    31.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 44 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40A  VAL      2.9    13.2    +      -       -      +
     41A  THR*     3.3     9.4    +      -       -      +
     43A  GLY*     1.3    75.0    -      -       -      +
     45A  GLY*     1.3    63.2    +      -       -      +
     47A  ILE*     3.2     2.7    +      -       +      +
     48A  ALA*     2.9    23.0    +      -       +      +
     62A  ILE*     4.1    14.4    -      -       +      -
     65A  LEU*     3.8    29.2    -      -       +      -
     66A  VAL*     3.8    26.2    -      -       +      -
     69A  ASN*     5.3     0.2    -      -       -      +
     91A  THR*     4.0    11.7    -      -       +      -
     94A  ALA*     4.8     0.9    -      -       +      -
     95A  LYS*     3.7    32.5    -      -       +      +
     98A  LEU*     3.7    28.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 45 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  THR      2.9    14.8    +      -       -      -
     42A  LYS*     3.2     5.5    +      -       -      -
     44A  LEU*     1.3    76.8    -      -       -      +
     46A  GLN*     1.3    58.9    +      -       -      +
     48A  ALA*     3.9     1.5    -      -       -      +
     49A  THR*     2.7    30.5    +      -       -      -
     66A  VAL*     5.3     0.6    -      -       -      +
    175A  GLN*     3.5    38.0    -      -       -      +
    178A  LEU*     5.0     2.0    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 46 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42A  LYS      3.0    10.6    +      -       -      +
     43A  GLY*     3.2     8.0    +      -       -      +
     45A  GLY*     1.3    77.5    -      -       -      +
     47A  ILE*     1.3    61.9    +      -       -      +
     49A  THR*     3.3     4.2    +      -       -      -
     50A  ARG*     2.9    34.0    +      -       +      +
    107A  GLY      3.1    25.5    +      -       -      -
    108A  LEU*     3.8    13.9    -      -       +      +
    109A  SER*     2.9    38.4    +      -       -      +
    112A  ALA*     3.5     6.1    -      -       -      +
    179A  ALA*     3.5    21.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 47 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43A  GLY      3.1    12.2    +      -       -      +
     44A  LEU*     3.2     5.4    +      -       -      +
     46A  GLN*     1.3    77.3    -      -       -      +
     48A  ALA*     1.3    57.1    +      -       -      +
     50A  ARG*     3.2     7.6    +      -       -      +
     51A  LEU*     2.9    29.5    +      -       +      +
     95A  LYS*     3.5    32.1    -      -       +      +
     98A  LEU*     3.5    33.0    -      -       +      +
     99A  ALA*     3.6    21.3    -      -       +      +
    102A  LEU*     4.1     7.7    -      -       +      +
    108A  LEU*     4.1    11.9    -      -       +      -
    112A  ALA*     3.6    35.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 48 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44A  LEU      2.9    16.6    +      -       -      +
     45A  GLY      3.9     2.2    -      -       -      +
     47A  ILE*     1.3    75.8    -      -       -      +
     49A  THR*     1.3    63.1    +      -       -      +
     51A  LEU*     3.3     3.5    +      -       -      +
     52A  ARG*     3.0    32.2    +      -       -      +
     58A  VAL*     3.7    21.2    -      -       +      +
     62A  ILE*     4.6     3.1    -      -       +      -
     98A  LEU*     4.2    12.1    -      -       +      +
    175A  GLN*     3.3    27.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 49 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45A  GLY      2.7    22.7    +      -       -      -
     46A  GLN*     3.5     6.7    -      -       -      -
     47A  ILE      3.3     0.2    -      -       -      -
     48A  ALA*     1.3    76.8    -      -       -      +
     50A  ARG*     1.3    64.6    +      -       +      +
     52A  ARG*     3.3    13.4    +      -       -      +
     53A  ALA*     3.0    23.5    +      -       +      +
    172A  ALA      4.7     0.2    +      -       -      -
    175A  GLN*     3.5     2.6    -      -       -      +
    176A  GLU*     3.3    49.1    +      -       +      +
    179A  ALA*     5.1     2.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 50 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46A  GLN*     2.9    33.7    +      -       +      +
     47A  ILE*     3.2     5.6    +      -       -      +
     49A  THR*     1.3    77.7    -      -       +      +
     51A  LEU*     1.3    62.7    +      -       -      +
     53A  ALA*     3.2    10.6    +      -       -      +
     54A  GLU*     3.0    30.0    +      -       -      +
    102A  LEU*     3.8    17.6    -      -       +      +
    104A  ASP*     2.9    43.2    +      -       -      +
    105A  LYS      4.2     0.8    -      -       -      -
    106A  SER      2.9    28.7    +      -       -      +
    107A  GLY*     4.1     9.1    +      -       -      -
    108A  LEU*     4.1    15.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 51 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47A  ILE*     2.9    17.9    +      -       +      +
     48A  ALA      3.3     6.5    +      -       -      +
     50A  ARG*     1.3    73.2    -      -       -      +
     52A  ARG*     1.3    65.7    +      -       -      +
     54A  GLU*     3.1     8.4    +      -       -      -
     56A  LYS*     2.9    55.3    +      -       +      +
     57A  ALA      4.9     3.6    -      -       -      +
     58A  VAL*     3.9    13.7    -      -       +      -
     98A  LEU*     3.7    40.6    -      -       +      +
    101A  SER*     3.1    31.2    -      -       -      +
    102A  LEU*     3.6    20.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 52 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48A  ALA*     3.0    28.1    +      -       -      +
     49A  THR*     3.3    12.5    +      -       -      +
     51A  LEU*     1.3    74.4    -      -       -      +
     53A  ALA*     1.3    58.4    +      -       -      +
     55A  GLY*     3.0    19.4    +      -       -      -
     56A  LYS      3.9     8.5    -      -       -      +
     58A  VAL*     3.7    30.1    +      -       +      +
     63A  ASP*     3.4    18.2    +      -       -      -
    168A  ASN*     4.5    13.1    +      -       -      -
    171A  ASP*     4.9     0.6    -      -       -      +
    172A  ALA*     3.9    35.1    +      -       -      +
    175A  GLN*     2.9    41.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 53 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49A  THR*     3.0    15.2    +      -       +      +
     50A  ARG*     3.6    14.6    -      -       -      +
     51A  LEU      3.2     0.2    -      -       -      -
     52A  ARG*     1.3    77.6    -      -       -      +
     54A  GLU*     1.3    57.4    +      -       +      +
     55A  GLY      3.2     1.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 54 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50A  ARG*     3.0    17.9    +      -       +      +
     51A  LEU      3.1     8.4    +      -       -      +
     53A  ALA*     1.3    76.7    -      -       +      +
     55A  GLY*     1.3    60.2    +      -       -      +
     56A  LYS*     2.7    46.7    +      -       +      +
    102A  LEU*     3.7    17.4    -      -       -      +
    103A  THR*     3.0    20.2    +      -       -      -
    104A  ASP*     3.1    32.2    +      -       -      +
----------------------------------------------------------
 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