Contacts of the helix formed by residues 61 - 80 (chain A) in PDB entry 1UES


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 GLU 61 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48A  PHE*     5.3     0.2    -      -       -      -
     59A  LYS      4.4     5.6    -      -       -      +
     60A  SER*     1.3    76.9    -      -       -      +
     62A  GLY*     1.3    70.2    +      -       -      +
     63A  GLY      3.5     0.3    +      -       -      -
     64A  ILE*     3.4     9.4    +      -       -      +
     65A  PHE*     3.0    17.1    +      -       -      -
    147A  ARG*     3.3    23.8    +      -       -      +
    706D  LYS*     3.4    30.8    +      -       -      +
    709D  GLU*     4.4    19.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 62 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61A  GLU*     1.3    79.6    -      -       -      +
     63A  GLY*     1.3    58.5    +      -       -      -
     65A  PHE*     3.2     2.4    +      -       -      +
     66A  ASN*     3.0    37.3    +      -       -      +
    147A  ARG*     5.0     0.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 63 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42A  LEU*     3.8    13.0    -      -       -      -
     61A  GLU      3.5     0.2    +      -       -      -
     62A  GLY*     1.3    68.4    -      -       -      -
     64A  ILE*     1.3    65.9    +      -       -      +
     66A  ASN*     3.3    10.5    +      -       -      +
     67A  ASN*     2.9    31.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 64 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39A  LEU*     4.1     5.2    -      -       +      +
     42A  LEU*     3.5    43.9    -      -       +      +
     43A  ILE*     4.1    13.0    -      -       +      -
     46A  THR*     3.8    23.3    -      -       +      +
     48A  PHE*     4.2    10.3    -      -       +      -
     56A  ILE*     3.7    14.6    -      -       +      -
     60A  SER*     3.5    21.5    -      -       -      +
     61A  GLU      3.4     7.6    +      -       -      +
     62A  GLY      3.3     0.4    -      -       -      -
     63A  GLY*     1.3    74.9    -      -       -      +
     65A  PHE*     1.3    64.0    +      -       -      +
     67A  ASN*     3.3     2.5    +      -       -      +
     68A  ALA*     2.9    24.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 65 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57A  VAL*     3.4    39.7    -      -       +      -
     60A  SER*     3.1    21.7    +      -       -      +
     61A  GLU*     3.0    29.6    +      -       -      -
     62A  GLY      3.6     1.8    -      -       -      +
     64A  ILE*     1.3    77.9    -      -       -      +
     66A  ASN*     1.3    67.8    +      -       -      +
     68A  ALA*     4.3     0.9    -      -       -      -
     69A  GLY*     2.7    30.0    +      -       -      -
    142A  ALA*     3.8    33.4    -      -       +      -
    143A  GLY*     4.2     9.2    -      -       -      -
    144A  ASN      4.6     2.5    -      -       -      -
    147A  ARG*     3.3    50.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 66 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62A  GLY*     3.0    24.6    +      -       -      +
     63A  GLY*     3.6    11.2    -      -       -      +
     64A  ILE      3.3     0.2    -      -       -      -
     65A  PHE*     1.3    86.7    -      -       -      +
     67A  ASN*     1.3    62.7    +      -       -      +
     70A  GLN*     3.2    32.9    +      -       -      +
    141A  ASN*     5.6     0.5    -      -       -      +
    142A  ALA*     3.5     8.2    +      -       -      +
    319B  PHE*     3.5    53.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 67 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35A  TYR*     3.4    37.6    -      -       -      +
     38A  ASN*     3.4    29.1    +      -       -      +
     39A  LEU*     3.9    13.9    -      -       +      +
     42A  LEU*     3.3    19.4    -      -       +      +
     63A  GLY*     2.9    27.2    +      -       -      +
     64A  ILE      4.1     1.3    -      -       -      +
     66A  ASN*     1.3    78.0    -      -       -      +
     68A  ALA*     1.3    61.3    +      -       -      +
     70A  GLN*     3.4     1.4    +      -       -      +
     71A  THR*     2.9    33.6    +      -       -      -
    319B  PHE*     5.3     2.3    -      -       -      -
----------------------------------------------------------
 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
----------------------------------------------------------
     39A  LEU*     4.1    17.3    -      -       +      +
     53A  LEU*     3.8     5.6    -      -       +      +
     56A  ILE*     3.6    28.5    -      -       +      -
     57A  VAL*     3.6    22.2    -      -       +      +
     60A  SER*     4.4     0.2    -      -       -      +
     64A  ILE      2.9    17.1    +      -       -      +
     65A  PHE*     3.8     4.9    -      -       -      +
     67A  ASN*     1.3    73.6    -      -       -      +
     69A  GLY*     1.3    60.4    +      -       -      +
     71A  THR*     3.1     3.3    +      -       -      -
     72A  LEU      2.9    26.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 69 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57A  VAL*     3.9    19.8    -      -       -      +
     65A  PHE*     2.7    23.4    +      -       -      -
     68A  ALA*     1.3    72.4    -      -       -      +
     70A  GLN*     1.3    56.2    +      -       -      +
     72A  LEU*     3.4     1.8    +      -       -      +
     73A  ASN*     2.9    39.8    +      -       -      -
    142A  ALA      3.6    15.5    -      -       -      -
    144A  ASN*     5.0     1.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 70 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35A  TYR*     3.0    57.5    +      -       +      -
     66A  ASN      3.2    25.0    +      -       -      +
     67A  ASN      3.8     0.7    -      -       -      +
     69A  GLY*     1.3    74.6    -      -       -      +
     71A  THR*     1.3    64.0    +      -       -      +
     73A  ASN*     3.6     1.4    +      -       -      -
     74A  HIS*     2.6    46.7    +      -       -      -
    123A  TRP*     2.9    27.2    +      -       -      -
    141A  ASN      3.5     4.5    -      -       -      +
    142A  ALA*     3.5     7.2    -      -       +      +
    159A  TRP*     3.3    30.0    -      -       -      +
    161A  HIS*     4.9     0.2    -      -       -      -
    319B  PHE*     3.7     9.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 71 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3A  HIS*     5.4     4.7    -      -       +      -
      4A  GLU      5.0     2.7    -      -       -      +
     32A  LEU*     4.0     7.9    -      -       +      -
     35A  TYR*     3.8    21.0    +      -       -      +
     36A  VAL*     3.9    20.1    +      -       +      +
     39A  LEU*     4.1     8.9    -      -       +      +
     53A  LEU*     3.7    25.6    -      -       +      -
     67A  ASN      2.9    19.2    +      -       -      -
     68A  ALA      3.1     4.0    +      -       -      -
     70A  GLN*     1.3    76.1    -      -       -      +
     72A  LEU*     1.3    62.6    +      -       -      +
     74A  HIS*     3.8     1.0    -      -       -      +
     75A  ASN*     2.9    40.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 72 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53A  LEU*     3.8    19.2    -      -       +      +
     54A  ASN*     4.1    21.5    -      -       -      +
     57A  VAL*     3.9    22.7    -      -       +      -
     68A  ALA      2.9    15.6    +      -       -      +
     69A  GLY      3.8     3.1    -      -       -      +
     71A  THR*     1.3    77.4    -      -       -      +
     73A  ASN*     1.3    63.2    +      -       -      +
     75A  ASN*     3.2     6.1    +      -       +      +
     76A  LEU*     3.1    40.0    +      -       +      +
    144A  ASN*     3.6    32.1    -      -       -      +
    146A  VAL*     3.9    12.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 73 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69A  GLY      2.9    22.3    +      -       -      +
     70A  GLN*     3.6     3.9    +      -       -      +
     72A  LEU*     1.3    75.8    -      -       -      +
     74A  HIS*     1.3    58.9    +      -       -      +
     76A  LEU*     3.4     2.1    +      -       -      +
     77A  TYR*     2.9    29.5    +      -       -      +
    123A  TRP*     3.3    44.8    -      -       +      +
    125A  TRP*     2.9    22.2    +      -       -      -
    142A  ALA      3.1    10.7    +      -       -      -
    143A  GLY      2.9    21.8    +      -       -      +
    144A  ASN*     2.9    22.2    -      -       -      +
    155A  THR*     4.2     1.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 74 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27A  HIS*     3.2    20.7    +      +       -      -
     32A  LEU*     3.6    28.3    -      -       +      -
     35A  TYR*     3.5    18.3    -      +       -      -
     70A  GLN*     2.6    45.8    +      -       -      +
     73A  ASN*     1.3    74.9    -      -       -      +
     75A  ASN*     1.3    68.3    +      -       -      +
     77A  TYR*     4.0     5.8    -      +       -      -
     78A  PHE*     2.9    39.6    +      +       +      -
    123A  TRP*     3.4    22.1    -      +       -      -
    157A  ASP*     4.1     0.2    -      -       -      -
    161A  HIS*     3.9     0.6    +      -       -      -
    192A   MN      2.2    36.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 75 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4A  GLU      5.1     3.0    +      -       -      +
      6A  ILE*     3.3    43.7    +      -       +      +
     32A  LEU*     3.9     8.5    -      -       -      +
     36A  VAL*     5.8     0.3    -      -       -      +
     53A  LEU*     3.7    14.3    -      -       -      +
     71A  THR*     2.9    39.2    +      -       -      +
     72A  LEU*     3.2     9.6    +      -       +      +
     74A  HIS*     1.3    77.5    -      -       -      +
     76A  LEU*     1.3    54.6    +      -       +      +
     79A  THR*     2.8    37.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 76 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72A  LEU*     3.1    38.1    +      -       +      +
     73A  ASN      3.9     0.4    -      -       -      +
     75A  ASN*     1.3    74.2    -      -       +      +
     77A  TYR*     1.3    68.8    +      -       -      +
     79A  THR*     3.4     4.0    +      -       -      +
     80A  GLN*     3.3    13.1    +      -       -      +
    125A  TRP*     3.5    35.4    -      -       +      -
    144A  ASN*     4.2     0.2    -      -       -      +
    152A  PRO*     3.8    23.6    -      -       +      +
    190A  ARG*     3.0    45.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 77 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19A  ILE*     3.4    18.9    -      -       +      +
     27A  HIS*     3.6    30.1    +      +       -      -
     73A  ASN      2.9    19.5    +      -       -      +
     74A  HIS*     3.2     4.7    +      +       -      +
     76A  LEU*     1.3    78.6    -      -       -      +
     78A  PHE*     1.3    91.7    +      +       -      +
     80A  GLN*     3.2    25.0    +      -       -      +
     81A  PHE*     3.3    36.8    -      +       -      -
    123A  TRP*     3.9     9.4    -      +       +      -
    155A  THR*     3.6    24.8    -      -       +      +
    156A  PHE*     4.5     1.6    -      -       -      -
    157A  ASP*     3.6    30.5    -      -       +      +
    162A  ALA*     4.0    12.1    +      -       -      +
    174A  HIS*     4.3     7.8    +      -       -      -
    178A  LEU*     4.7     3.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 78 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6A  ILE*     4.3     7.2    -      -       +      -
      8A  LEU*     3.7    19.3    -      -       +      -
      9A  PRO*     5.1     0.2    -      -       -      -
     10A  TYR*     2.8    40.4    +      -       -      +
     15A  LEU*     5.5     2.9    -      -       +      -
     19A  ILE*     5.2     9.9    -      -       +      -
     24A  VAL*     5.4     6.1    -      -       +      -
     27A  HIS*     3.7    33.0    -      +       +      -
     28A  HIS*     3.8    31.4    -      +       +      -
     32A  LEU*     4.0    17.0    -      -       +      -
     74A  HIS*     2.9    48.5    +      +       -      +
     77A  TYR*     1.3    94.2    -      +       -      +
     79A  THR*     1.3    62.8    +      -       -      +
     80A  GLN      3.2     0.9    +      -       -      -
     81A  PHE*     3.6     7.2    +      +       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 79 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6A  ILE*     4.3    16.4    -      -       +      -
      7A  SER      5.5     1.8    -      -       -      +
      9A  PRO*     4.4    20.4    -      -       +      -
     75A  ASN*     2.8    24.2    +      -       +      +
     76A  LEU*     3.6     2.6    -      -       -      +
     77A  TYR      3.2     0.6    -      -       -      -
     78A  PHE*     1.3    80.5    -      -       -      +
     80A  GLN*     1.3    57.0    +      -       -      +
     81A  PHE      3.3     0.7    -      -       -      -
     82A  ARG*     3.1    20.0    +      -       -      -
    186A  ILE*     3.4    13.0    -      -       -      +
    190A  ARG*     3.1    18.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 80 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76A  LEU      3.3    10.2    +      -       -      +
     77A  TYR*     3.2    19.4    +      -       -      +
     78A  PHE      3.2     0.2    -      -       -      -
     79A  THR*     1.3    78.6    -      -       -      +
     81A  PHE*     1.3    86.5    +      -       +      +
    154A  LEU*     3.6    16.1    -      -       +      +
    155A  THR*     2.7    43.4    +      -       -      +
    182A  VAL*     3.9     2.1    -      -       +      +
    183A  ASP*     2.9    31.8    +      -       -      +
    186A  ILE*     4.1     5.8    -      -       +      -
    187A  VAL*     4.5    11.0    -      -       +      -
    190A  ARG*     3.2    30.0    +      -       -      +
----------------------------------------------------------
 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