Contacts of the strand formed by residues 229 - 235 (chain D) in PDB entry 1KLG


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 LYS 229 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    132D  LEU*     4.1    32.9    -      -       +      +
    134D  ARG*     5.4    10.9    -      -       -      +
    188D  PHE*     3.6     1.9    -      -       -      -
    189D  ILE*     2.7    63.8    +      -       +      +
    227D  SER      4.4     7.4    -      -       -      +
    228D  VAL*     1.3    78.3    -      -       -      +
    230D  ILE*     1.3    65.2    +      -       -      +
    231D  GLU*     5.8     1.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 230 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131D  VAL*     3.2    30.3    -      -       +      -
    132D  LEU*     3.0    14.7    +      -       -      +
    133D  VAL*     3.2    27.3    -      -       +      -
    134D  ARG*     3.0    23.2    +      -       -      +
    147D  VAL*     5.8     0.2    -      -       +      -
    159D  LEU*     4.0    13.0    -      -       +      -
    163D  ALA*     5.1     1.6    -      -       +      -
    186D  ILE*     3.7    30.3    -      -       +      -
    187D  LYS      3.4     3.4    -      -       -      +
    188D  PHE*     3.6    38.4    -      -       +      -
    228D  VAL*     4.1     4.3    -      -       +      -
    229D  LYS*     1.3    77.3    -      -       -      +
    231D  GLU*     1.3    71.4    +      -       -      +
    232D  VAL*     4.3     0.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 231 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134D  ARG*     3.3    23.3    +      -       +      +
    136D  TYR*     3.8    23.3    -      -       +      +
    186D  ILE*     3.6     0.5    -      -       -      -
    187D  LYS*     2.8    53.5    +      -       +      +
    189D  ILE*     2.7    33.4    -      -       +      +
    229D  LYS*     5.8     0.8    -      -       +      +
    230D  ILE*     1.3    79.1    -      -       -      +
    232D  VAL*     1.3    62.7    +      -       -      +
    233D  HIS*     2.9    32.9    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 232 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    133D  VAL*     4.1    19.5    -      -       +      -
    134D  ARG      2.8    11.7    +      -       -      +
    135D  VAL*     3.4     6.8    -      -       +      +
    136D  TYR      2.6    34.3    +      -       -      +
    163D  ALA*     4.9     3.6    -      -       +      -
    167D  LEU*     3.8    23.8    -      -       +      -
    185D  TYR      3.6     3.1    -      -       -      -
    186D  ILE*     4.2    21.8    -      -       +      -
    200D  MET*     3.8    19.3    -      -       +      -
    230D  ILE*     4.3     1.5    -      -       +      -
    231D  GLU*     1.3    73.3    -      -       -      +
    233D  HIS*     1.3    57.6    +      -       -      +
    234D  LEU*     3.6    30.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 233 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136D  TYR*     3.5    33.4    -      +       +      -
    139D  LYS*     5.7     6.3    -      -       +      -
    183D  THR*     4.5     0.5    +      -       -      -
    184D  GLY*     3.2     3.5    -      -       -      -
    185D  TYR*     3.0    76.2    +      +       +      -
    187D  LYS*     5.1     3.6    -      -       +      -
    231D  GLU*     2.9    46.7    +      -       +      -
    232D  VAL*     1.3    73.7    -      -       -      +
    234D  LEU*     1.3    62.9    +      -       -      +
    235D  THR*     5.4     1.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 234 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135D  VAL*     4.5    13.9    -      -       +      -
    136D  TYR      2.6    16.6    +      -       -      +
    137D  GLU*     4.3     3.1    -      -       +      -
    138D  ASN*     2.9    23.9    +      -       -      -
    139D  LYS      4.5     0.9    +      -       -      -
    167D  LEU*     5.1     5.6    -      -       +      -
    171D  LYS*     5.8     2.5    -      -       +      -
    173D  LEU*     4.3    13.7    -      -       +      -
    181D  TYR*     3.6    50.3    -      -       +      +
    183D  THR      3.4     4.9    -      -       -      +
    184D  GLY*     3.7    20.4    -      -       -      -
    200D  MET*     4.1    11.2    -      -       +      -
    201D  MET*     5.5     0.7    -      -       +      -
    232D  VAL*     3.6    28.5    -      -       +      +
    233D  HIS*     1.3    73.1    -      -       -      +
    235D  THR*     1.3    70.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 235 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11D  LEU*     6.3     0.4    -      -       +      -
    137D  GLU*     5.3     0.2    -      -       -      +
    138D  ASN*     3.6    19.5    -      -       -      +
    139D  LYS*     5.5     2.7    -      -       +      +
    181D  TYR*     3.3     7.8    -      -       -      +
    182D  GLU*     2.6    35.3    +      -       -      +
    183D  THR*     2.5    39.6    +      -       -      +
    233D  HIS*     5.4     1.6    -      -       +      +
    234D  LEU*     1.3    81.7    -      -       -      +
    236D  THR*     1.3    59.8    +      -       -      +
----------------------------------------------------------
 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