Contacts of the helix formed by residues 114 - 128 (chain E) in PDB entry 4GUN


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 SER 114 (chain E).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108E  ILE*     3.7    10.6    +      -       -      +
    109E  VAL*     5.2     3.4    -      -       -      -
    112E  TYR*     3.2    11.1    -      -       -      +
    113E  GLY*     1.3    78.8    -      -       -      +
    115E  VAL*     1.4    63.1    +      -       -      +
    116E  SER*     3.7    12.4    -      -       -      -
    117E  ASN*     3.2    23.7    +      -       -      +
    118E  LEU      3.2    14.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 115 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97E  HIS*     3.9    22.7    -      -       +      +
     98E  PRO*     3.7    35.4    -      -       +      +
    100E  THR*     5.5     8.3    -      -       +      -
    105E  GLY*     6.4     0.4    -      -       -      -
    108E  ILE*     3.8    20.0    -      -       +      -
    109E  VAL*     6.2     1.3    -      -       +      -
    114E  SER*     1.4    71.5    -      -       -      +
    116E  SER*     1.3    53.7    +      -       -      +
    118E  LEU*     3.2     5.1    +      -       +      +
    119E  ILE*     2.8    44.1    +      -       +      +
    197E  TRP*     3.7    36.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 116 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97E  HIS*     4.7     9.5    +      -       -      -
    114E  SER*     3.7    12.1    -      -       -      -
    115E  VAL*     1.3    76.0    -      -       -      +
    117E  ASN*     1.4    55.5    +      -       -      +
    119E  ILE*     3.4    11.6    +      -       -      +
    120E  ASP*     3.1    35.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 117 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112E  TYR*     3.0    33.7    +      -       -      +
    114E  SER*     3.2    11.4    +      -       -      +
    116E  SER*     1.4    76.2    +      -       -      +
    118E  LEU*     1.4    64.9    +      -       -      +
    120E  ASP*     3.3    13.9    +      -       -      +
    121E  ILE*     3.1    40.2    +      -       -      +
    142G  GLN      4.9     3.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 118 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108E  ILE*     3.9    33.2    -      -       +      -
    112E  TYR*     3.6    46.5    -      -       +      +
    114E  SER      3.2    11.7    +      -       -      +
    115E  VAL*     3.2    10.6    +      -       +      +
    117E  ASN*     1.4    76.2    -      -       -      +
    119E  ILE*     1.4    50.9    +      -       -      +
    121E  ILE*     3.3     3.3    +      -       +      +
    122E  THR*     2.8    40.5    +      -       -      +
    137E  ILE*     4.1    33.4    -      -       +      -
    147E  LEU*     4.9     0.9    -      -       +      -
    149E  VAL*     3.7    20.6    -      -       +      -
    197E  TRP*     4.5     9.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 119 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97E  HIS*     4.0    24.0    -      -       +      +
    115E  VAL*     2.8    21.9    +      -       +      +
    116E  SER*     3.6     9.2    -      -       -      +
    117E  ASN      3.3     0.2    -      -       -      -
    118E  LEU*     1.4    73.7    -      -       -      +
    120E  ASP*     1.4    57.7    +      -       -      +
    122E  THR*     3.3     6.3    +      -       -      -
    123E  ASN*     2.8    43.0    +      -       -      +
    192E  TRP*     3.7    61.9    -      -       +      +
    197E  TRP*     4.2    14.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 120 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116E  SER*     3.1    27.9    +      -       -      +
    117E  ASN*     3.3    17.2    +      -       -      +
    119E  ILE*     1.4    80.6    -      -       -      +
    121E  ILE*     1.3    57.4    +      -       +      +
    123E  ASN*     3.8     8.5    +      -       -      +
    124E  SER*     3.0    29.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 121 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112E  TYR*     3.6    30.3    -      -       +      -
    117E  ASN*     3.1    36.1    +      -       -      +
    118E  LEU*     3.6     5.8    -      -       -      +
    120E  ASP*     1.3    72.9    -      -       +      +
    122E  THR*     1.3    65.2    +      -       -      +
    124E  SER*     3.3     8.1    +      -       -      -
    125E  LYS*     3.1    24.1    +      -       +      +
    149E  VAL*     3.7    23.6    -      -       +      -
    142G  GLN*     3.5    49.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 122 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118E  LEU      2.8    20.5    +      -       -      -
    119E  ILE      3.7     3.8    -      -       -      -
    121E  ILE*     1.3    73.0    -      -       -      +
    123E  ASN*     1.3    57.1    +      -       -      +
    125E  LYS*     3.1     4.5    +      -       -      +
    126E  LEU*     2.9    36.2    +      -       +      +
    135E  ALA*     4.5    11.0    -      -       +      -
    136E  PHE      5.8     0.2    -      -       -      -
    137E  ILE*     3.8    17.8    -      -       +      +
    149E  VAL*     3.7    31.9    -      -       +      +
    167E  ILE*     5.9     0.2    -      -       +      -
    169E  ILE*     5.0     4.0    -      -       +      -
    192E  TRP*     3.6    30.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 123 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119E  ILE*     2.8    31.7    +      -       -      +
    120E  ASP*     3.8     9.4    +      -       -      +
    122E  THR*     1.3    71.6    -      -       -      +
    124E  SER*     1.4    56.0    +      -       -      +
    126E  LEU*     3.5    14.2    +      -       -      +
    127E  ALA*     3.1    29.6    +      -       -      +
    188E  PHE*     3.5    20.2    +      -       +      +
    189E  LYS*     4.4    11.1    -      -       -      +
    192E  TRP*     2.7    34.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 124 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120E  ASP      3.0    14.3    +      -       -      -
    121E  ILE*     3.4    12.1    -      -       -      -
    122E  THR      3.2     0.2    -      -       -      -
    123E  ASN*     1.4    73.7    -      -       -      +
    125E  LYS*     1.3    63.6    +      -       -      +
    127E  ALA*     3.5     7.6    +      -       -      +
    128E  GLY*     3.3    17.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 125 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121E  ILE*     3.1    20.2    +      -       +      +
    122E  THR      3.1     7.4    +      -       -      +
    124E  SER*     1.3    73.0    -      -       -      +
    126E  LEU*     1.4    64.1    +      -       -      +
    128E  GLY*     3.3    11.7    +      -       -      -
    129E  ILE*     3.5    14.0    +      -       -      +
    135E  ALA*     5.1     1.6    -      -       +      -
    149E  VAL*     3.3    45.6    +      -       +      -
    150E  VAL*     4.2     9.5    -      -       -      +
    151E  THR*     3.7    24.6    +      -       +      +
    142G  GLN*     5.2     3.8    -      -       -      +
    162G  HIS*     4.3    23.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 126 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122E  THR*     2.9    29.6    +      -       +      +
    123E  ASN*     3.6    26.7    -      -       -      +
    125E  LYS*     1.4    74.9    -      -       -      +
    127E  ALA*     1.4    61.4    +      -       -      +
    129E  ILE*     3.2    30.8    +      -       +      +
    135E  ALA*     3.4    25.3    -      -       +      +
    169E  ILE*     3.8    30.1    -      -       +      +
    171E  ALA*     4.2     2.5    -      -       +      -
    184E  ARG*     3.3     8.5    +      -       -      -
    188E  PHE*     3.5    47.7    -      -       +      -
    191E  ILE*     5.6     0.2    -      -       +      -
    192E  TRP*     4.5     5.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 127 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123E  ASN      3.1    17.7    +      -       -      +
    124E  SER*     3.6     8.1    -      -       -      +
    125E  LYS      3.4     0.2    -      -       -      -
    126E  LEU*     1.4    74.3    -      -       -      +
    128E  GLY*     1.3    57.8    +      -       -      +
    129E  ILE      4.0     0.3    -      -       -      +
    184E  ARG*     2.7    22.9    +      -       -      +
    185E  PRO*     6.1     6.3    -      -       +      -
    188E  PHE*     3.8     9.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 128 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124E  SER      3.3     7.1    +      -       -      -
    125E  LYS      3.3     9.0    +      -       -      -
    126E  LEU      3.3     0.8    -      -       -      -
    127E  ALA*     1.3    77.5    -      -       -      +
    129E  ILE*     1.4    61.6    -      -       -      +
    130E  GLN*     3.3    15.7    +      -       -      +
----------------------------------------------------------
 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