Contacts of the strand formed by residues 210 - 214 (chain F) in PDB entry 1KR2


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 210 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    160F  LEU*     5.0     5.6    -      -       +      -
    178F  VAL*     3.9    31.0    -      -       +      -
    183F  LEU*     3.4    23.8    -      -       +      +
    185F  CYS*     5.2     3.1    -      -       +      -
    197F  ILE*     3.5    30.7    -      -       +      +
    203F  LEU*     3.8    40.2    -      -       +      +
    206F  HIS      3.7     7.9    -      -       -      +
    207F  ARG*     3.0    16.8    +      -       -      +
    208F  SER      3.4     0.4    -      -       -      -
    209F  ASN*     1.3    83.3    -      -       -      +
    211F  HIS*     1.3    62.6    +      -       -      +
    212F  VAL*     3.6    10.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 211 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34F  TYR*     3.9    32.2    +      +       +      +
     35F  MET*     4.2    20.2    -      -       +      -
     38F  THR*     6.3     0.9    -      -       +      -
     40F  ARG*     5.1     9.9    -      -       -      -
     41F  TYR*     3.4    35.0    +      +       -      -
    152F  LYS*     5.1     4.6    +      -       +      -
    183F  LEU      2.8    16.8    +      -       -      +
    184F  ILE*     3.4     9.9    -      -       +      -
    185F  CYS*     2.8    27.9    +      -       -      -
    208F  SER      3.6    22.0    +      -       -      -
    209F  ASN*     4.2    14.4    +      -       -      -
    210F  ILE*     1.3    71.3    +      -       -      +
    212F  VAL*     1.3    61.8    +      -       -      +
    213F  VAL*     3.6     2.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 212 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34F  TYR*     4.5    11.7    +      -       -      -
    185F  CYS*     3.4    13.2    -      -       +      +
    187F  THR*     4.1    20.2    -      -       +      -
    190F  GLY*     4.3    12.6    -      -       -      +
    193F  ALA*     4.3    11.9    -      -       +      -
    194F  GLN*     4.1    22.2    -      -       +      +
    197F  ILE*     3.8    28.7    -      -       +      -
    210F  ILE*     3.6     7.2    +      -       +      +
    211F  HIS*     1.3    72.1    -      -       -      +
    213F  VAL*     1.3    61.8    +      -       -      +
    214F  ASN*     3.8    16.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 213 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30F  LEU*     4.1    20.6    -      -       +      +
     31F  ALA*     4.8     1.3    -      -       -      -
     34F  TYR*     3.6    50.7    -      -       +      -
    184F  ILE*     3.9    24.0    -      -       +      -
    185F  CYS      2.8    10.0    +      -       -      +
    186F  VAL*     3.3    18.0    -      -       +      +
    187F  THR      3.0    24.8    +      -       -      +
    211F  HIS      4.0     3.4    -      -       -      +
    212F  VAL*     1.3    74.0    -      -       -      +
    214F  ASN*     1.3    71.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 214 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    191D  ASN*     4.2     6.6    +      -       -      +
    194D  GLN*     3.8    26.4    +      -       -      +
     30F  LEU*     4.5     5.4    -      -       -      +
     34F  TYR*     5.9     0.2    -      -       -      -
    187F  THR*     3.4     6.7    -      -       -      +
    190F  GLY*     4.0    21.5    -      -       -      -
    212F  VAL*     3.8    10.5    +      -       -      +
    213F  VAL*     1.3    85.7    -      -       -      +
    215F  GLU*     1.3    60.9    +      -       -      +
    216F  TRP*     3.6    46.0    +      -       +      +
----------------------------------------------------------
 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