Contacts of the helix formed by residues 58 - 75 (chain C) in PDB entry 1E8O


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 ASP 58 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38C  LEU*     5.5     0.2    -      -       -      -
     51C  TYR*     3.1    19.8    +      -       +      +
     53C  THR*     2.9    41.9    -      -       +      +
     55C  GLN*     3.8     7.3    +      -       -      +
     56C  ALA      2.9     1.8    +      -       -      -
     57C  GLN*     1.3    97.9    +      -       -      +
     59C  VAL*     1.3    66.9    +      -       -      +
     60C  LYS      3.5     0.2    -      -       -      -
     61C  LYS*     3.5    20.3    -      -       +      +
     62C  ILE*     3.4    25.2    +      -       +      +
     94D  LEU*     6.0     0.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 59 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31C  TYR*     6.1     0.4    -      -       +      -
     38C  LEU*     4.1    24.7    -      -       +      -
     55C  GLN      4.8     0.2    +      -       -      -
     56C  ALA*     3.3    15.4    +      -       -      +
     58C  ASP*     1.3    75.8    -      -       -      +
     60C  LYS*     1.3    68.6    +      -       -      +
     62C  ILE*     2.9     5.6    +      -       +      +
     63C  GLU*     2.9    28.7    +      -       +      +
     87D  LEU      5.1     0.9    -      -       -      +
     88D  ARG*     5.0    16.6    -      -       +      +
     91D  MET*     4.3    35.0    -      -       +      +
     94D  LEU*     4.4    17.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 60 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56C  ALA      5.0     0.2    +      -       -      -
     57C  GLN      4.4     9.1    +      -       -      +
     58C  ASP      3.5     0.4    -      -       -      -
     59C  VAL*     1.3    81.0    -      -       -      +
     61C  LYS*     1.3    64.3    +      -       -      +
     63C  GLU*     3.2     8.1    +      -       -      +
     64C  LYS*     3.0    53.9    +      -       +      +
     88D  ARG*     4.7    21.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 61 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7C  TRP*     3.4    54.0    -      -       +      +
     51C  TYR*     5.8     0.7    -      -       +      +
     57C  GLN      4.8     7.2    -      -       -      -
     58C  ASP*     3.5    31.2    -      -       +      +
     60C  LYS*     1.3    78.4    -      -       -      +
     62C  ILE*     1.3    59.5    +      -       +      +
     64C  LYS*     3.2    17.0    +      -       -      +
     65C  PHE      2.9    24.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 62 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7C  TRP*     3.8    21.3    -      -       +      -
     29C  LEU*     3.9    11.4    -      -       +      -
     38C  LEU*     3.6    38.8    -      -       +      -
     39C  CYS      5.2     0.7    -      -       -      +
     40C  VAL*     3.1    34.8    -      -       +      +
     51C  TYR*     4.0    20.9    -      -       +      +
     53C  THR*     4.2     9.9    -      -       -      +
     58C  ASP      3.4    13.9    -      -       -      +
     59C  VAL      2.9     9.0    +      -       -      +
     61C  LYS*     1.3    78.1    -      -       +      +
     63C  GLU*     1.3    63.8    +      -       +      +
     65C  PHE*     3.4     5.5    +      -       -      +
     66C  HIS*     3.2    19.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 63 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29C  LEU*     5.6     2.0    -      -       -      -
     59C  VAL*     2.9    19.7    +      -       +      +
     60C  LYS      3.3    12.1    -      -       -      +
     62C  ILE*     1.3    79.3    -      -       -      +
     64C  LYS*     1.3    80.7    +      -       -      +
     66C  HIS*     3.1     8.8    -      -       -      +
     67C  SER*     2.9    47.4    +      -       -      -
     84D  SER*     3.1    29.5    +      -       -      +
     87D  LEU*     4.3    22.3    -      -       +      +
     88D  ARG*     3.7    30.2    +      -       +      +
     91D  MET*     5.8     2.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 64 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60C  LYS*     3.0    37.7    +      -       +      +
     61C  LYS*     3.2    20.8    +      -       -      +
     63C  GLU*     1.3    89.5    -      -       +      +
     65C  PHE*     1.3    56.3    +      -       -      +
     66C  HIS      3.0     4.9    -      -       -      -
     67C  SER*     3.7     3.5    -      -       -      +
     68C  GLN*     2.8    34.0    +      -       -      +
     71C  ARG*     4.9     1.4    +      -       -      -
     88D  ARG*     4.2    10.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 65 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7C  TRP*     3.7    23.1    -      +       +      -
     10C  PHE*     4.3     7.4    -      +       -      -
     11C  SER*     4.3    16.6    -      -       -      -
     14C  ALA*     3.3    28.7    -      -       +      -
     15C  GLU*     3.9    29.8    -      -       +      -
     27C  VAL*     5.4     0.4    -      -       +      -
     40C  VAL*     4.2    20.6    -      -       +      -
     42C  VAL*     4.0    13.5    -      -       +      -
     61C  LYS      2.9    17.1    +      -       -      +
     62C  ILE      3.6     4.7    -      -       -      +
     64C  LYS*     1.3    75.8    -      -       -      +
     66C  HIS*     1.3    59.3    +      -       -      +
     68C  GLN*     4.0     8.0    -      -       -      +
     69C  LEU*     3.0    57.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 66 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27C  VAL*     4.9    12.5    -      -       +      +
     29C  LEU*     4.1    22.3    -      -       +      +
     40C  VAL*     6.5     0.9    -      -       +      -
     62C  ILE      3.2    10.2    +      -       -      +
     63C  GLU*     3.1    12.1    +      -       -      +
     65C  PHE*     1.3    78.8    -      -       +      +
     67C  SER*     1.3    68.9    +      -       -      +
     68C  GLN      3.1     2.0    +      -       -      -
     69C  LEU*     3.2     6.3    +      -       -      +
     70C  MET*     3.1    21.4    +      -       +      +
     28D  ILE*     4.4    13.0    -      -       +      +
     30D  LEU*     3.4    43.8    -      -       +      +
     58D  LEU*     4.5     0.9    -      -       +      -
     83D  TYR*     2.7    46.2    +      +       -      -
     87D  LEU*     3.8    13.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 67 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63C  GLU*     2.9    38.1    +      -       -      -
     64C  LYS*     3.3     4.2    +      -       -      -
     66C  HIS*     1.3    81.3    -      -       -      +
     68C  GLN*     1.3    63.8    +      -       -      +
     70C  MET*     3.2     8.7    -      -       -      +
     71C  ARG*     3.3    20.8    +      -       -      -
     80D  GLN*     3.0    33.7    +      -       -      +
     83D  TYR*     5.2     5.5    -      -       -      -
     84D  SER*     4.3     5.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 68 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15C  GLU*     3.3    25.4    +      -       -      +
     64C  LYS      2.8    18.3    +      -       -      +
     65C  PHE*     4.1     9.7    -      -       -      +
     67C  SER*     1.3    72.0    -      -       -      +
     69C  LEU*     1.3    59.0    +      -       +      +
     70C  MET      2.9     2.0    -      -       -      -
     71C  ARG*     2.5    58.2    +      -       +      +
     72C  LEU*     3.2    23.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 69 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14C  ALA*     5.5     0.7    -      -       +      +
     15C  GLU*     4.3    16.6    -      -       +      +
     18C  TYR*     4.4    26.5    -      -       +      -
     27C  VAL*     4.3    22.9    -      -       +      -
     42C  VAL*     4.3     7.2    -      -       +      -
     65C  PHE*     3.0    61.9    +      -       +      +
     66C  HIS*     3.2     6.2    +      -       -      +
     68C  GLN*     1.3    78.7    -      -       +      +
     70C  MET*     1.3    62.3    +      -       -      +
     72C  LEU*     3.4    15.7    +      -       +      +
     73C  MET*     3.1    38.3    +      -       +      +
     30D  LEU*     4.8     2.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 70 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66C  HIS*     3.1    18.2    +      -       +      +
     67C  SER*     3.2    11.4    -      -       -      +
     68C  GLN      2.7     4.6    +      -       -      -
     69C  LEU*     1.3    74.2    -      -       -      +
     71C  ARG*     1.3    56.5    +      -       -      +
     73C  MET*     2.9    22.6    +      -       -      +
     74C  VAL*     3.0    12.1    +      -       -      +
     30D  LEU*     3.2    45.2    -      -       +      +
     56D  CYS*     3.7    24.2    -      -       -      -
     58D  LEU*     3.9    18.8    -      -       +      -
     71D  VAL*     4.8     7.4    -      -       -      -
     76D  VAL*     5.1     6.1    -      -       +      -
     79D  PHE*     4.8    11.7    -      -       -      -
     80D  GLN*     3.5    25.4    -      -       -      +
     83D  TYR*     4.1    11.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 71 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64C  LYS      4.9     1.4    +      -       -      -
     67C  SER*     3.3    36.1    +      -       -      +
     68C  GLN*     2.5    51.9    +      -       +      +
     70C  MET*     1.3    73.1    -      -       +      +
     72C  LEU*     1.3    60.2    +      -       +      +
     74C  VAL*     3.7     9.6    -      -       +      +
     75C  ALA*     2.8    30.1    +      -       -      +
     76D  VAL*     5.7     6.1    -      -       +      -
     77D  ASN*     6.1     0.9    -      -       -      -
     80D  GLN*     3.6    25.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 72 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15C  GLU*     5.3    11.2    -      -       +      +
     18C  TYR*     3.0    40.7    +      -       +      -
     19C  LEU*     4.8    10.8    -      -       +      -
     68C  GLN*     3.2    23.4    +      -       +      +
     69C  LEU*     3.8    16.6    -      -       +      +
     70C  MET      3.2     0.2    -      -       -      -
     71C  ARG*     1.3    82.6    -      -       +      +
     73C  MET*     1.3    60.5    +      -       -      +
     75C  ALA*     3.9    17.2    +      -       +      +
     32D  LYS*     4.1     5.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 73 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18C  TYR*     3.0    36.3    -      -       +      +
     25C  ALA      5.9     1.6    -      -       -      +
     26C  ARG*     5.7     2.9    -      -       -      -
     27C  VAL*     4.1    13.2    -      -       +      +
     69C  LEU*     3.1    29.6    -      -       +      +
     70C  MET      2.9     9.5    +      -       -      +
     72C  LEU*     1.3    81.0    -      -       -      +
     74C  VAL*     1.3    56.2    +      -       -      +
     75C  ALA      3.5     0.2    -      -       -      -
     30D  LEU*     3.9    24.0    -      -       +      +
     31D  LYS*     3.3    15.3    -      -       -      +
     32D  LYS*     3.2    52.5    +      -       +      +
     54D  ASN*     3.6     8.1    -      -       -      +
     55D  LYS      3.8    11.1    -      -       -      +
     56D  CYS*     4.0    10.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 74 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70C  MET      3.0    12.3    +      -       -      +
     71C  ARG*     3.4     7.4    +      -       -      +
     73C  MET*     1.3    77.8    -      -       -      +
     75C  ALA*     1.3    67.7    +      -       -      +
     54D  ASN*     3.6    18.4    -      -       -      +
     55D  LYS*     4.1     3.6    -      -       -      -
     56D  CYS*     4.4     6.7    -      -       -      +
     71D  VAL      3.3    26.5    -      -       -      +
     72D  SER      3.5     2.2    -      -       -      -
     73D  SER*     3.4    49.4    -      -       -      +
     76D  VAL*     3.5    26.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 75 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71C  ARG      2.8    17.6    +      -       -      +
     72C  LEU*     4.1    19.7    -      -       +      +
     73C  MET      3.5     0.9    -      -       -      +
     74C  VAL*     1.3    86.3    +      -       -      +
     32D  LYS*     4.6     2.3    +      -       -      -
     54D  ASN*     3.6    22.4    +      -       -      -
----------------------------------------------------------
 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