Contacts of the strand formed by residues 162 - 170 (chain C) in PDB entry 4EN0


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 ILE 162 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    149C  LEU*     3.6    54.5    -      -       +      -
    161C  THR*     1.3    80.7    -      -       -      +
    163C  THR*     1.3    65.1    +      -       -      +
    164C  HIS*     3.9     4.8    +      -       +      +
    182C  SER      3.5     2.3    -      -       -      +
    183C  GLN*     3.3     3.9    -      -       -      -
    184C  GLN*     2.9    37.8    +      -       +      +
    186C  PRO*     3.6    24.0    -      -       +      -
    197C  TRP*     4.3     0.7    -      -       +      -
    201C  SER*     5.9     0.7    -      -       -      -
    219C  VAL*     4.0    16.6    -      -       +      -
    220C  LEU*     4.3    10.5    -      -       -      +
    221C  ASP*     5.4     0.9    -      -       +      +
    224C  LEU*     3.9    26.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 163 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    232A  ARG*     5.0     4.7    -      -       -      +
    161C  THR*     5.4     0.7    -      -       -      -
    162C  ILE*     1.3    74.1    +      -       -      +
    164C  HIS*     1.3    62.0    +      -       -      +
    165C  GLY      4.3     0.2    -      -       -      -
    167C  TYR*     4.4    13.5    -      -       -      +
    178C  GLU*     5.3     1.1    -      -       -      +
    181C  VAL*     3.7    26.9    -      -       +      -
    182C  SER      3.4     4.3    -      -       -      +
    183C  GLN*     4.0    20.0    +      -       +      +
    218C  ARG      3.8     0.4    -      -       -      +
    219C  VAL*     3.1     6.8    -      -       -      +
    220C  LEU*     2.7    58.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 164 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145C  SER*     3.1    48.3    +      -       -      -
    147C  VAL*     3.4    25.4    -      -       +      +
    162C  ILE*     3.9     5.4    +      -       +      -
    163C  THR*     1.3    77.1    -      -       -      +
    165C  GLY*     1.3    62.6    +      -       -      +
    166C  LEU*     4.8     0.6    -      -       -      +
    181C  VAL*     4.7     0.4    -      -       -      -
    182C  SER      2.9    32.1    +      -       -      +
    201C  SER*     3.0    43.9    +      -       -      +
    203C  LEU*     3.1    22.5    -      -       +      +
    217C  VAL*     3.9     8.4    -      -       +      +
    218C  ARG      3.5     2.9    -      -       -      -
    219C  VAL*     3.8    15.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 165 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    163C  THR      4.3     0.2    -      -       -      -
    164C  HIS*     1.3    76.8    -      -       -      +
    166C  LEU*     1.3    66.5    +      -       -      +
    167C  TYR*     3.2    18.1    +      -       -      -
    180C  LEU      3.2    11.0    -      -       -      -
    181C  VAL*     4.3     4.5    -      -       -      -
    203C  LEU*     3.7     2.7    -      -       -      -
    217C  VAL*     3.5     5.0    -      -       -      +
    218C  ARG      2.9    35.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 166 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143C  ILE*     3.6    40.2    -      -       +      -
    144C  TYR*     4.1    17.5    -      -       -      +
    145C  SER*     3.5    16.2    -      -       -      +
    164C  HIS*     4.8     1.6    -      -       -      +
    165C  GLY*     1.3    76.5    -      -       -      -
    167C  TYR*     1.3    62.1    +      -       -      +
    178C  GLU*     3.8     0.3    -      -       -      -
    179C  LEU*     2.9    30.3    +      -       +      +
    180C  LEU*     2.9    29.8    +      -       +      +
    203C  LEU*     4.6     5.4    -      -       +      -
    215C  VAL*     4.3     7.6    -      -       +      -
    216C  VAL      3.4     3.6    -      -       -      +
    217C  VAL*     3.5    33.0    -      -       +      -
    235C  PHE*     4.3     7.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 167 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    163C  THR*     4.4    16.8    -      -       -      +
    165C  GLY*     3.2    34.4    -      -       -      -
    166C  LEU*     1.3    73.7    -      -       -      +
    168C  LYS*     1.3    60.6    +      -       -      +
    169C  ARG      4.0     0.6    +      -       -      -
    176C  GLU*     3.5    33.4    -      -       +      +
    177C  LEU      3.4     5.8    -      -       -      +
    178C  GLU*     3.4    44.6    +      -       +      -
    179C  LEU*     4.4     2.5    -      -       -      -
    181C  VAL*     4.8     0.9    -      -       +      +
    214C  GLU      3.8     0.3    -      -       -      +
    215C  VAL*     3.3     5.1    -      -       -      +
    216C  VAL*     2.9    41.7    +      -       +      +
    218C  ARG*     3.5    42.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 168 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120A  LEU*     5.8     6.2    -      -       +      +
    167C  TYR*     1.3    72.3    -      -       -      +
    169C  ARG*     1.3    66.5    +      -       -      +
    170C  THR*     3.9    13.8    +      -       +      +
    175C  GLU      3.7     1.6    -      -       -      +
    176C  GLU*     3.3     3.0    -      -       -      -
    177C  LEU*     3.0    31.0    +      -       +      +
    179C  LEU*     3.6    30.9    -      -       +      +
    207C  VAL*     5.9     0.7    -      -       +      -
    208C  HIS*     3.2    20.8    +      -       -      +
    209C  LEU*     3.7    17.4    -      -       +      +
    210C  GLU*     5.7     0.6    -      -       -      +
    213C  GLU*     2.8    45.2    +      -       +      -
    214C  GLU      3.3    11.2    -      -       -      +
    215C  VAL*     4.6     1.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 169 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    111C  PRO*     4.2    17.7    -      -       -      +
    130C  ASP      5.3     4.0    +      -       -      -
    132C  ALA*     5.0     5.5    -      -       -      +
    167C  TYR      4.8     0.2    -      -       -      -
    168C  LYS*     1.3    74.7    -      -       -      +
    170C  THR*     1.3    61.1    +      -       -      +
    171C  PRO*     4.6     0.7    -      -       -      +
    175C  GLU      3.6     8.5    -      -       -      +
    176C  GLU*     3.6    44.1    +      -       +      -
    213C  GLU*     4.3     4.2    -      -       -      -
    214C  GLU*     2.9    45.4    +      -       +      +
    216C  VAL*     3.6    36.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 170 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168C  LYS*     4.7    13.2    -      -       +      +
    169C  ARG*     1.3    76.0    -      -       -      +
    171C  PRO*     1.3    68.5    -      -       -      +
    172C  ARG*     3.3    18.6    +      -       +      +
    173C  TYR*     2.7    49.1    -      -       +      +
    174C  PRO*     3.4     7.4    -      -       -      +
    175C  GLU*     3.5     8.8    +      -       +      +
    177C  LEU*     6.2     1.6    -      -       +      +
    213C  GLU*     3.8    16.7    +      -       -      -
----------------------------------------------------------
 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