Contacts of the strand formed by residues 191 - 199 (chain C) in PDB entry 3QS1


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 GLN 191 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    184C  LEU*     3.1    26.5    -      -       -      +
    185C  ASN*     2.8    35.4    +      -       -      +
    186C  HIS*     3.2    28.2    +      -       -      +
    188C  LEU*     4.0    13.5    -      -       -      +
    189C  TYR*     2.6    44.8    +      -       +      +
    190C  TRP*     1.3    73.2    -      -       -      +
    192C  VAL*     1.3    60.4    +      -       -      +
    211C  THR*     4.9    10.0    +      -       -      +
    212C  ALA      3.5     7.2    -      -       -      +
    213C  ILE*     4.1    20.1    -      -       +      +
    298C  THR*     5.9     2.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 192 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    182C  GLU*     3.8    33.4    -      -       +      +
    183C  LYS      3.5    26.9    -      -       -      +
    185C  ASN*     3.1     7.0    -      -       -      -
    190C  TRP      5.1     0.7    -      -       -      +
    191C  GLN*     1.3    75.9    -      -       -      +
    193C  ASP*     1.3    74.6    +      -       -      +
    194C  LEU*     3.9    16.2    -      -       +      -
    211C  THR*     3.3     3.1    -      -       -      -
    212C  ALA*     2.8    36.5    +      -       +      +
    214C  VAL*     6.2     2.5    -      -       +      -
    320C  VAL*     4.2    17.5    -      -       +      -
    322C  PHE*     5.6     6.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 193 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    182C  GLU*     5.4     1.6    -      -       -      +
    183C  LYS      4.5     5.3    +      -       -      +
    185C  ASN*     3.2    28.0    +      -       +      +
    192C  VAL*     1.3    83.6    -      -       -      +
    194C  LEU*     1.3    61.8    +      -       -      +
    209C  LYS*     3.2    49.0    -      -       +      +
    210C  ALA      3.1    14.9    -      -       -      +
    211C  THR*     4.3     5.5    -      -       -      +
    262C  SER*     4.7     8.1    -      -       -      -
    296C  LYS*     5.6     0.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 194 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    182C  GLU*     5.8     0.7    -      -       +      -
    192C  VAL*     3.9    13.2    -      -       +      -
    193C  ASP*     1.3    78.1    +      -       -      +
    195C  ASP*     1.3    63.5    +      -       -      +
    197C  LEU*     3.3     9.0    +      -       +      +
    209C  LYS*     4.1     1.7    -      -       -      +
    210C  ALA*     2.7    42.5    +      -       -      +
    212C  ALA*     3.8    25.8    -      -       +      -
    260C  PHE*     4.0    30.5    -      -       +      +
    261C  ARG      3.0    35.4    -      -       -      +
    262C  SER*     4.1     8.3    -      -       -      +
    267C  TYR*     5.1     7.9    -      -       +      -
    301C  LEU*     4.4     7.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 195 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194C  LEU*     1.3    68.2    -      -       -      +
    197C  LEU*     1.3    61.9    +      -       -      +
    198C  HIS      3.7     1.2    +      -       -      -
    208C  GLU*     3.5    18.9    -      -       -      +
    209C  LYS*     2.7    34.2    +      -       -      +
    260C  PHE*     3.9     2.3    -      -       -      -
    261C  ARG*     2.9    70.0    +      -       +      +
    262C  SER*     5.0     2.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 197 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194C  LEU*     3.3    12.7    +      -       +      +
    195C  ASP*     1.3    71.5    -      -       -      +
    198C  HIS*     1.3    61.4    -      -       -      +
    199C  PHE*     4.3    16.8    -      -       +      +
    205C  LEU      3.9     0.7    -      -       -      +
    206C  THR*     3.0     6.1    -      -       -      -
    207C  VAL*     2.9    44.4    +      -       +      +
    208C  GLU*     4.8     0.4    -      -       -      +
    210C  ALA*     3.8    11.9    -      -       +      -
    212C  ALA*     4.8     5.2    -      -       +      -
    227C  PHE*     5.1     2.0    -      -       +      -
    259C  GLU      3.8     1.3    -      -       -      -
    260C  PHE*     3.5    33.9    -      -       +      -
    261C  ARG*     4.2     2.1    -      -       -      +
    299C  PHE*     3.4    57.0    -      -       +      -
    301C  LEU*     6.1     0.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 198 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    195C  ASP      3.7     0.6    +      -       -      -
    197C  LEU*     1.3    72.0    -      -       -      +
    199C  PHE*     1.3    70.1    +      -       -      +
    201C  GLY      3.3    13.3    +      -       -      -
    203C  ASN*     2.9    25.1    +      -       -      -
    205C  LEU      3.7     0.9    -      -       -      -
    206C  THR*     3.1    21.0    -      -       +      +
    258C  LEU*     3.9     0.5    -      -       -      +
    259C  GLU*     2.5    65.6    +      -       +      +
    260C  PHE*     5.3     0.2    -      -       -      -
    261C  ARG*     2.7    39.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 199 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    197C  LEU*     4.3    15.9    -      -       +      -
    198C  HIS*     1.3    83.6    -      -       -      +
    201C  GLY*     1.3    62.3    +      -       -      +
    203C  ASN      3.0     2.3    +      -       -      -
    205C  LEU      3.1    16.2    +      -       -      +
    221C  ILE*     6.3     1.8    -      -       +      -
    227C  PHE*     3.9    24.7    -      +       +      -
    228C  LEU*     5.0     9.9    -      -       +      -
    231C  PHE*     2.7    74.0    -      +       +      -
    232C  PHE*     5.5     1.3    -      +       -      -
    256C  PRO*     4.7     0.4    -      -       +      -
    257C  THR      4.8     2.2    -      -       -      -
    258C  LEU*     3.2    49.6    -      -       +      -
    259C  GLU*     4.6     2.4    +      -       -      +
    260C  PHE*     5.4     1.8    -      +       -      -
    274C  TYR*     5.6     1.1    -      +       -      -
    286C  ILE*     4.2    19.1    -      -       +      -
    299C  PHE*     5.4     4.3    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 201 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    198C  HIS*     3.3    19.9    +      -       -      -
    199C  PHE*     1.3    67.3    -      -       -      +
    203C  ASN*     1.3    63.6    -      -       -      -
    231C  PHE*     3.4    14.7    -      -       -      -
    256C  PRO*     4.1    21.1    -      -       -      +
    257C  THR      4.4     3.6    +      -       -      -
----------------------------------------------------------
 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