Contacts of the helix formed by residues 31 - 53 (chain C) in PDB entry 1GN6


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 31 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27C  LEU*     2.8    38.5    +      -       +      +
     30C  SER*     1.3    93.2    +      -       -      +
     32C  HIS*     1.3    67.9    +      -       +      +
     33C  HIS      3.5     0.2    -      -       -      -
     34C  ALA*     4.1     1.5    -      -       -      +
     35C  THR*     3.0    27.2    +      -       -      -
    172D  ASN*     3.8    34.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 32 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27C  LEU      3.1    16.5    +      -       -      -
     28C  HIS*     3.4    24.2    -      -       +      +
     31C  LYS*     1.3    83.0    -      -       +      +
     33C  HIS*     1.3    66.2    +      -       -      +
     35C  THR*     3.1    19.3    +      -       -      +
     36C  TYR*     3.4    25.4    +      -       +      -
    164C  HIS*     3.6    39.6    +      +       +      +
    163D  GLU*     3.9     6.0    +      -       -      -
    167D  TYR*     2.8    35.2    +      +       -      -
    172D  ASN*     3.9    16.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 33 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6C  LEU*     3.7     9.1    -      -       +      +
      7C  PRO*     3.6    19.1    -      -       +      -
     28C  HIS*     2.9    15.9    +      -       -      +
     29C  HIS*     3.6    13.7    -      -       -      +
     31C  LYS      3.5     0.2    -      -       -      -
     32C  HIS*     1.3    73.2    -      -       -      +
     34C  ALA*     1.3    64.0    +      -       -      +
     36C  TYR*     3.0    20.9    +      -       +      +
     37C  VAL*     3.0    10.7    +      -       +      +
     73C  HIS*     2.9    40.3    +      -       -      -
     76C  HIS*     3.3    28.8    -      +       +      +
     77C  THR*     3.6    19.3    -      -       -      -
     80C  TRP*     3.0    23.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 34 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6C  LEU*     3.9    25.7    -      -       +      +
     29C  HIS      3.5     4.2    +      -       -      +
     30C  SER      3.7    22.0    -      -       -      +
     31C  LYS*     4.1     2.0    -      -       -      +
     32C  HIS      3.3     0.4    -      -       -      -
     33C  HIS*     1.3    77.7    -      -       -      +
     35C  THR*     1.3    59.1    +      -       -      +
     37C  VAL*     3.1     8.2    +      -       -      +
     38C  LYS*     2.9    28.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 35 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31C  LYS      3.0    12.8    +      -       -      -
     32C  HIS*     3.1    12.5    +      -       -      +
     34C  ALA*     1.3    80.2    -      -       -      +
     36C  TYR*     1.3    68.7    +      -       +      +
     38C  LYS*     3.1     7.1    +      -       -      +
     39C  GLY*     2.8    26.7    +      -       -      -
     69C  ASN*     4.3     3.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 36 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32C  HIS*     3.4    29.0    +      -       +      -
     33C  HIS*     3.0     9.1    +      +       -      +
     35C  THR*     1.3    84.3    -      -       +      +
     37C  VAL*     1.3    64.6    +      -       -      +
     40C  ALA*     2.8    26.7    +      -       -      +
     68C  PHE*     4.0    19.1    -      +       -      -
     69C  ASN*     3.6    36.8    -      -       -      +
     72C  GLY*     4.0    10.3    -      -       -      -
     73C  HIS*     3.9     9.9    -      -       -      +
     76C  HIS*     3.4    36.8    -      +       -      -
    145C  HIS*     2.9    27.1    +      -       -      -
    162C  TRP*     3.8    18.0    -      -       -      -
    164C  HIS*     4.3     7.2    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 37 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4C  TYR*     3.5    30.9    -      -       +      +
      5C  THR*     4.0     7.0    -      -       -      -
      6C  LEU*     4.0    21.1    -      -       +      +
     33C  HIS*     3.0    22.0    +      -       +      +
     34C  ALA*     3.1     9.2    +      -       -      +
     36C  TYR*     1.3    78.2    -      -       -      +
     38C  LYS*     1.3    65.3    +      -       -      +
     40C  ALA*     3.2     5.6    +      -       -      +
     41C  ASN*     3.1    25.2    +      -       -      +
     73C  HIS*     3.6    33.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 38 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34C  ALA      2.9    16.9    +      -       -      +
     35C  THR*     3.8     5.6    -      -       -      +
     37C  VAL*     1.3    79.8    -      -       -      +
     39C  GLY*     1.3    56.0    +      -       -      +
     41C  ASN*     3.2     5.8    +      -       -      +
     42C  ASP*     2.9    60.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 39 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35C  THR      2.8    17.2    +      -       -      -
     36C  TYR      3.2     0.2    +      -       -      -
     38C  LYS*     1.3    70.3    -      -       -      +
     40C  ALA*     1.3    65.2    +      -       -      +
     42C  ASP*     3.5     8.2    +      -       -      +
     43C  ALA*     3.1    23.6    +      -       -      +
     65C  ASN*     5.3     0.3    -      -       -      +
     69C  ASN*     3.6    29.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 40 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4C  TYR*     3.8    25.1    -      -       +      -
     36C  TYR      2.8    17.2    +      -       -      +
     37C  VAL*     3.6     5.6    -      -       -      +
     39C  GLY*     1.3    76.6    -      -       -      +
     41C  ASN*     1.3    65.1    +      -       -      +
     43C  ALA*     3.3     5.2    +      -       -      +
     44C  VAL*     3.2    29.3    +      -       -      +
     66C  LEU*     4.8     3.0    -      -       +      +
     69C  ASN*     3.5    20.4    -      -       +      +
     70C  LEU*     4.3    10.3    -      -       +      +
     73C  HIS*     5.0     1.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 41 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136A  LYS*     4.8     3.3    +      -       -      -
      3C  GLU*     3.6    25.5    +      -       -      +
      4C  TYR*     2.7    59.0    +      -       -      +
     37C  VAL*     3.1    18.9    +      -       -      +
     38C  LYS*     3.8     5.7    -      -       -      +
     40C  ALA*     1.3    81.9    -      -       -      +
     42C  ASP*     1.3    63.5    +      -       -      +
     44C  VAL*     3.6     4.6    +      -       -      +
     45C  ALA*     3.2    21.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 42 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38C  LYS*     2.9    52.5    +      -       -      +
     39C  GLY*     3.9     8.1    -      -       -      +
     40C  ALA      3.2     0.2    -      -       -      -
     41C  ASN*     1.3    80.6    -      -       -      +
     43C  ALA*     1.3    57.6    +      -       -      +
     45C  ALA*     3.1     7.7    +      -       -      +
     46C  LYS*     2.9    34.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 43 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39C  GLY      3.1    17.9    +      -       -      +
     40C  ALA      3.3     4.5    +      -       -      +
     42C  ASP*     1.3    73.7    -      -       -      +
     44C  VAL*     1.3    65.9    +      -       -      +
     46C  LYS*     3.4     7.1    +      -       -      +
     47C  LEU*     3.0    30.6    +      -       -      +
     62C  ASN*     4.4     5.3    -      -       -      +
     65C  ASN*     4.0    11.4    -      -       +      -
     66C  LEU*     3.6    39.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 44 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136A  LYS*     3.6    35.7    -      -       +      +
    138A  LEU*     4.6    10.8    -      -       +      -
      4C  TYR*     4.1    10.8    -      -       +      -
     40C  ALA      3.2    16.6    +      -       -      +
     41C  ASN*     4.0     5.6    -      -       -      +
     43C  ALA*     1.3    76.2    -      -       -      +
     45C  ALA*     1.3    64.5    +      -       -      +
     47C  LEU*     3.3     8.3    +      -       -      +
     48C  GLU*     3.1    38.4    +      -       +      +
     51C  ARG*     5.0     1.2    +      -       -      +
     66C  LEU*     4.1    17.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 45 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41C  ASN      3.2    12.5    +      -       -      +
     42C  ASP*     3.1    12.0    +      -       -      +
     44C  VAL*     1.3    81.6    -      -       -      +
     46C  LYS*     1.3    60.4    +      -       +      +
     48C  GLU*     3.2    16.0    +      -       -      +
     49C  GLU*     3.1    22.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 46 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42C  ASP*     2.9    23.0    +      -       +      +
     43C  ALA*     3.8     6.5    -      -       -      +
     45C  ALA*     1.3    69.8    -      -       -      +
     47C  LEU*     1.3    60.7    +      -       -      +
     49C  GLU*     3.2    31.4    +      -       -      +
     50C  ALA*     3.0    27.4    +      -       -      +
     62C  ASN*     4.0    26.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 47 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112A  GLN*     3.3    31.0    -      -       -      +
    138A  LEU*     5.9     2.9    -      -       +      -
     43C  ALA      3.0    22.8    +      -       -      +
     44C  VAL*     3.8     7.0    -      -       -      +
     45C  ALA      3.3     0.2    -      -       -      -
     46C  LYS*     1.3    73.2    -      -       -      +
     48C  GLU*     1.3    65.7    +      -       -      +
     50C  ALA*     3.4     3.6    +      -       +      +
     51C  ARG*     3.2    41.0    +      -       -      +
     56C  HIS*     5.1     4.9    -      -       +      +
     59C  ILE*     4.3    12.3    -      -       +      -
     62C  ASN*     3.8    36.8    -      -       +      +
     63C  GLU*     4.4     3.6    -      -       -      +
     66C  LEU*     4.0    28.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 48 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44C  VAL*     3.1    29.2    +      -       +      +
     45C  ALA*     3.2    14.4    +      -       -      +
     47C  LEU*     1.3    75.9    -      -       -      +
     49C  GLU*     1.3    63.4    +      -       -      +
     51C  ARG*     3.2    25.2    +      -       -      +
     52C  ALA*     3.0    23.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 49 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45C  ALA      3.1    13.1    +      -       -      +
     46C  LYS*     3.2    39.4    +      -       -      +
     47C  LEU      3.3     0.2    -      -       -      -
     48C  GLU*     1.3    78.2    -      -       -      +
     50C  ALA*     1.3    61.7    +      -       -      +
     52C  ALA*     3.1     5.9    +      -       -      +
     53C  LYS*     2.9    58.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 50 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46C  LYS      3.0    15.9    +      -       -      +
     47C  LEU*     3.9     7.0    -      -       +      +
     48C  GLU      3.3     0.2    -      -       -      -
     49C  GLU*     1.3    76.5    -      -       -      +
     51C  ARG*     1.3    58.8    +      -       -      +
     53C  LYS*     3.5     2.9    +      -       -      +
     54C  GLU*     2.9    23.9    +      -       -      -
     55C  ASP*     3.0    31.9    +      -       -      +
     56C  HIS*     3.8    20.4    -      -       +      +
     62C  ASN*     4.7    10.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 51 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102A  ALA      3.2    19.0    +      -       -      -
    103A  PHE*     3.4    51.1    +      -       -      +
    108A  LYS*     3.0    37.5    +      -       +      +
    112A  GLN*     2.8    41.4    +      -       -      +
     44C  VAL*     5.0     1.0    +      -       -      +
     47C  LEU*     3.2    35.3    +      -       -      +
     48C  GLU*     3.7    30.9    -      -       -      +
     49C  GLU      3.2     0.2    -      -       -      -
     50C  ALA*     1.3    77.0    -      -       -      +
     52C  ALA*     1.3    61.1    +      -       -      +
     54C  GLU*     3.1    13.8    +      -       -      +
     56C  HIS*     4.0    16.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 52 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108A  LYS*     4.4    10.5    +      -       -      +
     48C  GLU      3.0    17.0    +      -       -      +
     49C  GLU*     3.1     8.0    +      -       -      +
     51C  ARG*     1.3    78.7    -      -       -      +
     53C  LYS*     1.3    59.6    +      -       +      +
     54C  GLU*     3.2     7.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 53 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49C  GLU*     2.9    48.9    +      -       +      +
     50C  ALA*     4.4     3.4    -      -       -      +
     52C  ALA*     1.3    79.0    -      -       +      +
     54C  GLU*     1.3    70.8    +      -       -      +
     55C  ASP*     3.1    19.7    +      -       +      +
----------------------------------------------------------
 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