Contacts of the strand formed by residues 196 - 202 (chain A) in PDB entry 1UK0


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 196 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    187A  TYR*     3.2    22.8    +      -       -      +
    190A  PHE      3.3    24.5    +      -       -      -
    191A  LYS*     3.1    32.0    +      -       -      +
    192A  GLN*     4.9     1.4    -      -       -      +
    193A  LEU      3.0    26.2    +      -       -      -
    194A  HIS*     3.3     2.2    +      -       -      +
    195A  ASN*     1.4    70.9    -      -       -      +
    197A  ARG*     1.4    52.5    +      -       -      +
    262A  GLU*     3.6    14.9    +      -       -      -
    263A  VAL      3.2     3.4    -      -       -      +
    264A  ALA*     3.5    15.9    -      -       -      -
    304A  ASP      4.5    11.3    +      -       -      -
    305A  GLY      3.7    22.0    +      -       -      +
    306A  VAL*     3.2    13.6    -      -       +      +
    307A  ASP*     2.6    35.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 197 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    195A  ASN*     3.5    20.6    +      -       -      +
    196A  ARG*     1.4    73.4    -      -       -      +
    198A  LEU*     1.3    62.1    +      -       -      +
    199A  LEU*     3.3    31.9    +      -       +      +
    238A  ASP*     5.9     0.4    -      -       -      -
    261A  GLY      3.3     1.2    -      -       -      +
    263A  VAL*     2.7    32.7    +      -       -      +
    265A  LEU*     3.4    18.2    -      -       +      +
    268A  MET*     4.0    17.6    -      -       -      +
    288A  LYS*     5.8     1.6    -      -       -      +
    300A  ASN*     5.1     2.4    +      -       -      +
    306A  VAL*     3.5     5.8    -      -       -      +
    307A  ASP*     3.2    29.0    +      -       -      +
    309A  PRO*     4.5    15.3    -      -       -      +
    328A  TYR*     3.3    32.5    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 198 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156A  TYR*     2.8    22.7    +      -       +      -
    197A  ARG*     1.3    69.1    -      -       -      +
    199A  LEU*     1.3    67.2    +      -       -      +
    260A  LEU*     3.8    30.3    -      -       +      +
    261A  GLY      3.2    18.2    -      -       -      +
    262A  GLU*     4.1     4.7    -      -       +      +
    303A  LEU*     4.7     9.0    -      -       +      -
    306A  VAL*     4.2     5.8    -      -       +      +
    307A  ASP      2.9    10.1    +      -       -      -
    308A  VAL*     3.9    38.4    -      -       +      -
    309A  PRO*     3.6     3.1    -      -       -      +
    339A  LYS*     3.8    28.7    -      -       +      -
    340A  TYR*     4.4    17.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 199 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156A  TYR*     4.0     1.3    -      -       -      -
    197A  ARG*     3.7    29.2    -      -       +      -
    198A  LEU*     1.3    85.4    -      -       -      +
    200A  TRP*     1.3    65.7    +      -       -      +
    201A  HIS      3.4     0.3    +      -       -      -
    236A  PHE*     4.0    14.6    -      -       +      -
    237A  ALA      3.3    15.9    -      -       -      +
    238A  ASP*     3.9    11.7    -      -       +      -
    260A  LEU*     3.5     5.7    -      -       -      -
    261A  GLY*     2.7    37.5    +      -       -      +
    263A  VAL*     3.8    27.1    -      -       +      -
    265A  LEU*     4.5     0.9    -      -       +      -
    309A  PRO*     4.1     2.2    -      -       +      -
    328A  TYR*     3.6    45.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 200 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    153A  ILE      4.4     1.6    -      -       -      -
    156A  TYR*     3.2    64.6    -      +       -      -
    157A  VAL*     3.2    24.7    -      -       +      -
    199A  LEU*     1.3    72.5    -      -       -      +
    201A  HIS*     1.3    57.7    +      -       -      +
    236A  PHE*     3.5     6.1    -      -       -      -
    237A  ALA      2.8    48.0    +      -       -      +
    238A  ASP      3.7     8.0    +      -       -      -
    239A  MET      3.9     1.8    -      -       -      -
    240A  VAL*     3.3    29.2    -      -       +      +
    243A  SER*     3.2    23.4    +      -       -      +
    258A  ILE*     3.2    29.8    -      -       +      -
    259A  LEU      3.4     8.1    -      -       -      +
    260A  LEU*     3.5    31.2    -      -       +      -
    342A  LEU*     3.6    22.0    -      -       +      -
    501A  FRM      4.2     0.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 201 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199A  LEU      3.4     3.2    +      -       -      -
    200A  TRP*     1.3    71.0    -      -       -      +
    202A  GLY*     1.3    57.7    +      -       -      +
    203A  SER*     3.6    12.0    +      -       -      -
    208A  PHE*     4.5     0.3    -      -       -      -
    216A  LEU*     3.6    41.4    -      -       +      +
    234A  ILE*     5.3     3.4    -      -       +      -
    235A  TYR      2.8    30.7    +      -       -      -
    236A  PHE*     3.7    18.8    -      -       +      -
    258A  ILE*     4.9     0.2    -      -       -      -
    259A  LEU*     3.1    43.8    +      -       +      +
    501A  FRM      3.2    52.3    +      +       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 202 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201A  HIS*     1.3    67.0    -      -       -      +
    203A  SER*     1.3    63.7    +      -       -      -
    243A  SER*     3.3    30.7    -      -       -      -
    246A  TYR*     3.2     8.9    -      -       -      +
    247A  CYS*     5.3     0.2    -      -       -      -
    258A  ILE*     4.3    13.7    -      -       -      +
    501A  FRM      2.5    47.6    +      -       -      +
----------------------------------------------------------
 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