Contacts of the helix formed by residues 84 - 104 (chain C) in PDB entry 1G2X


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 84 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66C  LYS*     2.7    22.3    +      -       -      -
     81C  ARG*     3.4    24.0    +      -       -      +
     82C  THR      3.5     1.6    -      -       -      +
     83C  ALA*     1.3    75.0    -      -       -      +
     85C  ALA*     1.3    51.4    +      -       -      +
     86C  CYS*     3.2    11.1    +      -       -      +
     87C  ALA*     2.6    41.3    +      -       +      +
     88C  LYS*     2.8    34.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 85 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58C  ILE*     4.4    11.1    -      -       +      +
     82C  THR      5.0     1.3    -      -       -      -
     83C  ALA      3.2     7.5    +      -       -      +
     84C  ASP*     1.3    72.4    -      -       -      +
     86C  CYS*     1.3    57.2    +      -       -      +
     88C  LYS*     3.6    11.4    -      -       +      +
     89C  PHE*     2.8    31.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 86 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58C  ILE*     3.9    16.2    -      -       +      +
     59C  PRO      4.6     4.7    -      -       -      +
     60C  GLY      4.2     1.3    -      -       -      +
     61C  CYS*     2.0    57.1    -      -       +      -
     66C  LYS*     3.2    34.1    -      -       -      -
     84C  ASP*     3.2     7.4    +      -       -      +
     85C  ALA*     1.3    74.7    -      -       -      +
     87C  ALA*     1.3    66.1    +      -       -      +
     89C  PHE*     3.4     1.6    +      -       -      +
     90C  LEU*     2.9    27.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 87 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66C  LYS*     4.0    13.5    -      -       -      +
     68C  TYR*     3.7    18.1    -      -       +      +
     81C  ARG*     3.4    28.0    -      -       +      +
     84C  ASP*     2.6    34.0    +      -       -      +
     86C  CYS*     1.3    73.6    -      -       -      +
     88C  LYS*     1.3    63.7    +      -       -      +
     90C  LEU*     3.9     1.7    -      -       -      +
     91C  CYS*     2.9    27.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 88 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54A  GLN*     6.1     1.3    -      -       -      -
     89A  PHE*     4.7    20.6    -      -       -      -
     79C  CYS*     5.2     4.6    -      -       +      +
     81C  ARG*     3.5    28.4    -      -       -      +
     82C  THR*     3.9    25.6    +      -       -      +
     84C  ASP      2.8    16.8    +      -       -      +
     85C  ALA*     3.6     9.6    -      -       +      +
     87C  ALA*     1.3    78.5    -      -       -      +
     89C  PHE*     1.3    62.7    +      -       -      +
     91C  CYS*     3.9     3.5    -      -       -      +
     92C  ASP*     3.1    25.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 89 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82B  THR*     5.2     7.4    -      -       +      -
     88B  LYS*     5.1    16.4    -      -       -      -
     51C  CYS*     3.2    38.8    -      -       -      -
     54C  GLN*     3.8    23.3    -      -       +      -
     55C  ALA*     3.6    19.5    -      -       +      -
     58C  ILE*     3.6    25.4    -      -       +      -
     61C  CYS*     5.5     0.7    -      -       -      -
     85C  ALA      2.8    21.8    +      -       -      +
     86C  CYS      3.7     2.2    -      -       -      +
     88C  LYS*     1.3    73.7    -      -       -      +
     90C  LEU*     1.3    61.1    +      -       -      +
     92C  ASP*     3.3     9.4    +      -       +      +
     93C  CYS*     3.1    39.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 90 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1C  ASN      4.3     9.9    -      -       -      +
     52C  TYR*     3.5    35.7    -      -       +      -
     55C  ALA*     4.2    12.3    -      -       +      -
     61C  CYS*     4.5     6.7    -      -       -      -
     62C  ASN      3.7     1.3    -      -       -      +
     63C  PRO*     3.4    34.3    -      -       +      +
     66C  LYS*     3.3    35.4    -      -       +      -
     68C  TYR*     4.1     7.0    -      -       +      -
     86C  CYS      2.9    14.7    +      -       -      +
     87C  ALA*     3.9     3.1    -      -       -      +
     89C  PHE*     1.3    77.6    -      -       +      +
     91C  CYS*     1.3    64.3    +      -       -      +
     93C  CYS*     3.2     8.1    +      -       -      +
     94C  ASP*     3.2    26.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 91 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8C  MET*     3.4    18.6    -      -       -      +
     68C  TYR*     3.5    31.5    -      -       +      -
     69C  SER      4.1     2.0    -      -       -      +
     70C  TYR*     3.8     4.0    -      -       -      -
     79C  CYS*     2.0    60.9    -      -       +      -
     81C  ARG*     5.9     1.3    -      -       +      -
     87C  ALA      2.9    18.4    +      -       -      +
     88C  LYS*     3.9     3.1    -      -       -      +
     90C  LEU*     1.3    76.2    -      -       -      +
     92C  ASP*     1.3    58.5    +      -       -      +
     94C  ASP*     3.4     2.4    +      -       -      +
     95C  ARG      2.8    25.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 92 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51C  CYS*     5.0     4.7    -      -       -      -
     79C  CYS*     3.8     8.2    -      -       +      -
     88C  LYS*     3.1    19.3    +      -       +      +
     89C  PHE*     3.4     8.2    -      -       -      +
     90C  LEU      3.2     0.2    -      -       -      -
     91C  CYS*     1.3    74.0    -      -       -      +
     93C  CYS*     1.3    64.1    +      -       -      +
     95C  ARG*     3.8     8.9    +      -       -      +
     96C  THR*     2.7    43.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 93 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48C  HIS*     3.5    15.5    -      -       +      +
     51C  CYS*     2.0    59.5    -      -       +      -
     52C  TYR*     4.2     4.9    -      -       +      -
     89C  PHE*     3.1    41.2    +      -       -      -
     90C  LEU*     3.4    12.6    -      -       -      +
     92C  ASP*     1.3    77.3    +      -       -      +
     94C  ASP*     1.3    64.2    +      -       -      +
     96C  THR*     3.3     6.6    -      -       -      +
     97C  ALA      3.0    23.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 94 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1C  ASN      3.8     5.0    +      -       -      +
      5C  PHE*     3.2    33.2    -      -       +      +
      8C  MET*     3.6     7.8    -      -       -      +
     48C  HIS*     2.6    30.0    +      -       -      -
     52C  TYR*     2.8    24.0    +      -       -      -
     68C  TYR*     2.9    31.0    +      -       -      +
     90C  LEU*     3.2    11.9    +      -       -      +
     91C  CYS      3.8     0.7    -      -       -      +
     93C  CYS*     1.3    75.1    -      -       -      +
     95C  ARG*     1.3    59.7    +      -       -      +
     98C  ALA*     2.9    31.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 95 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47A  THR*     4.9    13.7    +      -       -      +
      8C  MET*     3.4    10.0    -      -       -      -
     77C  ILE*     2.7    45.6    +      -       +      +
     78C  THR*     4.7     0.8    -      -       -      +
     79C  CYS*     4.0    20.2    -      -       -      +
     91C  CYS      2.8    21.0    +      -       -      +
     92C  ASP*     3.8    10.6    +      -       -      +
     94C  ASP*     1.3    73.0    -      -       -      +
     96C  THR*     1.3    66.5    +      -       -      +
     98C  ALA*     3.7     2.0    -      -       -      +
     99C  ILE*     2.9    57.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 96 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47C  THR*     4.9    18.2    -      -       +      -
     48C  HIS*     6.2     1.1    -      -       -      +
     92C  ASP*     2.7    37.7    +      -       -      -
     93C  CYS*     3.3     7.0    -      -       -      +
     95C  ARG*     1.3    81.4    +      -       -      +
     97C  ALA*     1.3    59.5    +      -       -      +
     99C  ILE*     3.8     5.4    -      -       -      +
    100C  CYS*     2.8    37.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 97 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5C  PHE*     3.5    29.6    -      -       +      -
     44C  CYS      5.0     2.7    -      -       -      +
     48C  HIS*     3.6    29.2    -      -       +      -
     93C  CYS      3.0     6.8    +      -       -      +
     95C  ARG      3.3     0.2    -      -       -      -
     96C  THR*     1.3    77.4    -      -       -      +
     98C  ALA*     1.3    54.2    +      -       -      +
    100C  CYS*     3.0     6.3    +      -       -      -
    101C  PHE*     2.6    51.6    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 98 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5C  PHE*     4.0     1.0    -      -       +      -
      8C  MET*     3.5    37.0    -      -       +      +
      9C  ILE*     3.9    15.2    -      -       +      +
     12C  ALA*     4.0     4.3    -      -       +      +
     13C  GLY      5.1     0.5    +      -       -      -
     77C  ILE*     3.8    10.3    -      -       +      -
     94C  ASP      2.9    21.3    +      -       -      +
     95C  ARG      3.7     2.9    -      -       -      +
     97C  ALA*     1.3    72.7    -      -       -      +
     99C  ILE*     1.3    63.6    +      -       -      +
    101C  PHE*     3.3     8.3    +      -       -      +
    102C  ALA*     3.1    21.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 99 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12C  ALA*     4.3    16.4    -      -       +      -
     77C  ILE*     4.9     5.8    -      -       +      +
     95C  ARG*     2.9    64.9    +      -       +      +
     96C  THR*     3.8     5.4    -      -       -      +
     98C  ALA*     1.3    70.6    -      -       -      +
    100C  CYS*     1.3    66.6    +      -       -      +
    102C  ALA*     3.1     5.2    +      -       -      +
    103C  SER*     3.1    30.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 100 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40C  LYS*     5.3     5.4    -      -       -      -
     44C  CYS*     2.0    51.7    -      -       +      -
     47C  THR*     6.4     0.2    -      -       -      -
     96C  THR*     2.8    27.2    +      -       +      +
     97C  ALA*     3.4     6.1    -      -       -      +
     99C  ILE*     1.3    73.6    -      -       -      +
    101C  PHE*     1.3    62.3    +      -       -      +
    103C  SER*     3.4     4.6    +      -       -      +
    104C  ALA*     3.0    27.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 101 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5C  PHE*     3.9    21.5    -      +       -      -
      9C  ILE*     4.3    19.1    -      -       +      -
     17C  ARG*     3.2    23.6    +      -       -      -
     22C  TYR*     3.4    43.1    +      +       +      +
     41C  LEU*     3.4    17.0    -      -       +      +
     44C  CYS*     3.3    30.5    -      -       +      -
     45C  CYS*     3.2    37.0    -      -       -      -
     48C  HIS*     5.4     1.6    -      -       +      -
     97C  ALA*     2.6    34.0    +      -       +      +
     98C  ALA*     3.4     5.8    -      -       -      +
    100C  CYS*     1.3    74.9    -      -       -      +
    102C  ALA*     1.3    58.6    +      -       -      +
    104C  ALA      3.6     5.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 102 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12C  ALA*     3.4    27.8    -      -       +      +
     13C  GLY*     3.8    13.7    -      -       -      -
     17C  ARG*     4.6     4.4    +      -       -      +
     22C  TYR*     5.1     1.3    -      -       -      -
     98C  ALA      3.1    12.4    +      -       -      +
     99C  ILE*     3.1     8.9    +      -       +      +
    101C  PHE*     1.3    77.8    -      -       -      +
    103C  SER*     1.3    63.4    +      -       -      +
    104C  ALA      3.5     4.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 103 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40C  LYS*     4.8     7.4    +      -       -      -
     99C  ILE*     3.1    23.5    +      -       -      +
    100C  CYS*     4.2     3.8    -      -       -      -
    102C  ALA*     1.3    77.1    -      -       -      +
    104C  ALA*     1.3    63.1    +      -       -      +
    105C  PRO*     3.9     4.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 104 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17C  ARG*     3.3    19.9    +      -       -      -
     40C  LYS*     3.7    20.1    -      -       +      +
     41C  LEU*     3.8    29.4    -      -       +      +
     44C  CYS*     4.2     1.1    -      -       -      -
    100C  CYS      3.0    18.1    +      -       -      +
    101C  PHE      3.6     3.9    -      -       -      +
    102C  ALA      3.3     3.5    -      -       -      +
    103C  SER*     1.3    79.6    -      -       -      +
    105C  PRO*     1.3    73.0    -      -       +      +
----------------------------------------------------------
 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