Contacts of the helix formed by residues 167 - 179 (chain C) in PDB entry 5H1C


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 ARG 167 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138C  HIS*     3.3    17.9    -      -       +      +
    164C  GLY      4.6     9.5    +      -       -      -
    165C  THR*     3.2    24.2    +      -       -      +
    166C  PHE*     1.3    84.2    +      -       -      +
    168C  PRO*     1.3    72.2    -      -       +      +
    169C  GLU*     4.4    12.1    -      -       +      +
    170C  ARG*     3.2    24.2    +      -       +      +
    171C  LEU*     3.6    11.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 168 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    166C  PHE*     3.8    22.8    -      -       +      +
    167C  ARG*     1.3    86.7    -      -       +      +
    169C  GLU*     1.3    66.3    +      -       +      +
    171C  LEU*     2.9    33.2    +      -       +      +
    172C  LEU*     2.9    18.3    +      -       +      +
    186C  LEU*     4.6    14.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 169 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167C  ARG*     3.1    11.0    -      -       +      +
    168C  PRO*     1.3    87.8    -      -       +      +
    170C  ARG*     1.3    58.1    +      -       -      +
    172C  LEU*     3.1    16.7    +      -       +      +
    173C  ALA*     3.0    24.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 170 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135C  GLN*     2.6    53.9    +      -       -      +
    138C  HIS*     4.2    22.9    -      -       +      -
    167C  ARG*     3.2    18.1    +      -       +      +
    168C  PRO      3.2     0.4    -      -       -      -
    169C  GLU*     1.3    78.8    -      -       -      +
    171C  LEU*     1.3    58.2    +      -       -      +
    173C  ALA*     3.0    16.5    +      -       -      +
    174C  VAL*     2.9    35.7    +      -       +      +
    330C  ASN      4.4     9.3    +      -       -      -
    331C  ALA*     4.1    16.8    +      -       -      -
    332C  ASP      5.4     1.8    -      -       -      -
    333C  GLY*     4.6     1.8    -      -       -      -
    401C  ANP      3.1    42.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 171 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138C  HIS*     3.8    34.1    -      -       +      +
    141C  ALA*     4.6     6.5    -      -       +      -
    142C  VAL*     3.5    30.1    -      -       +      +
    166C  PHE*     3.3    33.4    -      -       +      -
    167C  ARG      3.8     8.5    -      -       -      +
    168C  PRO*     2.9     9.2    +      -       +      +
    170C  ARG*     1.3    77.3    -      -       -      +
    172C  LEU*     1.3    59.1    +      -       -      +
    174C  VAL*     3.5     2.7    +      -       +      +
    175C  ALA*     2.9    26.9    +      -       -      +
    182C  GLY*     6.1     0.2    -      -       -      -
    185C  VAL*     4.9     3.4    -      -       +      +
    186C  LEU*     3.7    27.1    -      -       +      -
    189C  VAL*     3.9    15.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 172 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168C  PRO*     2.9    18.8    +      -       +      +
    169C  GLU*     3.1    15.2    +      -       +      +
    171C  LEU*     1.3    78.1    -      -       -      +
    173C  ALA*     1.3    56.5    +      -       -      +
    175C  ALA*     3.1     5.0    +      -       -      +
    176C  GLU*     2.9    32.3    +      -       -      +
    182C  GLY*     3.7    28.3    -      -       -      +
    186C  LEU*     3.7    24.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 173 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    169C  GLU      3.0    12.2    +      -       -      +
    170C  ARG*     3.0    25.3    +      -       -      +
    172C  LEU*     1.3    74.1    -      -       -      +
    174C  VAL*     1.3    67.0    +      -       +      +
    176C  GLU*     3.0    19.4    +      -       -      +
    177C  ARG*     2.9    18.7    +      -       -      +
    331C  ALA      3.9    14.6    -      -       -      +
    332C  ASP*     3.8     8.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 174 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138C  HIS      5.2     0.9    -      -       -      -
    139C  THR*     4.0    35.0    -      -       +      +
    142C  VAL*     3.6    27.8    -      -       +      -
    170C  ARG*     2.9    30.2    +      -       +      +
    171C  LEU*     3.9     3.8    -      -       -      +
    173C  ALA*     1.3    75.9    -      -       +      +
    175C  ALA*     1.3    58.1    +      -       -      +
    177C  ARG*     2.8    23.0    +      -       +      +
    178C  TYR*     2.9    42.2    +      -       +      +
    332C  ASP      4.5    10.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 175 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    142C  VAL*     4.7     6.3    -      -       -      +
    171C  LEU      2.9    16.7    +      -       -      +
    172C  LEU*     3.2    10.8    -      -       +      +
    173C  ALA      3.1     0.4    -      -       -      -
    174C  VAL*     1.3    77.6    -      -       -      +
    176C  GLU*     1.3    60.1    +      -       -      +
    178C  TYR*     4.6     1.3    -      -       -      +
    179C  GLY*     3.1    15.2    +      -       -      -
    180C  LEU*     3.0    31.0    +      -       -      +
    182C  GLY*     3.7    24.9    -      -       -      +
    185C  VAL*     4.4     9.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 176 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172C  LEU*     2.9    20.8    +      -       -      +
    173C  ALA*     3.0    15.1    +      -       -      +
    175C  ALA*     1.3    75.9    -      -       -      +
    177C  ARG*     1.3    62.5    +      -       -      +
    178C  TYR      3.3     0.9    +      -       -      -
    179C  GLY*     3.6     8.0    +      -       -      -
    332C  ASP*     5.0     5.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 177 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105C  GLY      3.3    13.1    +      -       -      -
    106C  SER*     5.3     0.2    -      -       -      +
    139C  THR*     5.5     3.8    -      -       -      +
    173C  ALA      2.9     6.7    +      -       -      +
    174C  VAL*     2.8    23.7    +      -       -      +
    176C  GLU*     1.3    79.3    -      -       -      +
    178C  TYR*     1.3   113.7    +      -       -      +
    179C  GLY      3.6     0.2    -      -       -      -
    330C  ASN*     6.1     0.4    -      -       -      +
    332C  ASP*     3.2    46.8    +      -       +      +
    334C  VAL*     3.0    29.5    +      -       -      +
    335C  GLY*     3.9    10.1    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 178 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105C  GLY*     3.1    31.1    +      -       -      -
    139C  THR*     6.0     1.3    -      -       -      -
    142C  VAL*     4.9     6.7    -      -       +      -
    143C  THR*     3.4    29.2    -      -       +      -
    146C  LEU*     4.3    28.4    -      -       +      +
    150C  ARG*     4.3    16.6    +      -       -      +
    174C  VAL*     2.9    33.7    +      -       +      +
    175C  ALA*     3.9     1.3    -      -       -      +
    177C  ARG*     1.3   119.2    +      -       -      +
    179C  GLY*     1.3    58.3    +      -       -      +
    180C  LEU*     3.0    20.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 179 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175C  ALA      3.1     8.7    +      -       -      -
    176C  GLU*     3.6     6.3    +      -       -      -
    177C  ARG      3.6     2.2    -      -       -      -
    178C  TYR*     1.3    75.9    -      -       -      +
    180C  LEU*     1.3    64.3    +      -       -      +
    181C  SER      3.8     1.0    +      -       -      -
----------------------------------------------------------
 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