Contacts of the strand formed by residues 150 - 156 (chain E) 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 LYS 150 (chain E).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7E  THR*     4.4    20.0    -      -       +      -
      8E  GLU      3.0    12.0    +      -       -      +
      9E  VAL*     3.3     9.3    -      -       +      +
     10E  VAL*     2.8    28.8    +      -       -      -
    103E  GLN*     3.4     6.7    -      -       -      +
    148E  VAL      4.2     7.4    -      -       -      +
    149E  PRO*     1.3    75.6    -      -       -      +
    151E  VAL*     1.3    60.3    +      -       -      +
    152E  LYS*     4.4    22.4    -      -       -      +
    180E  ASN      5.8     3.6    -      -       -      +
    181E  TYR      5.6     0.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 151 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10E  VAL*     3.2    13.2    -      -       +      +
     12E  LEU*     3.9    21.5    -      -       +      -
     99E  LEU*     3.6    28.5    -      -       +      +
    102E  HIS*     4.0     7.4    -      -       +      -
    103E  GLN*     3.0    35.1    +      -       +      +
    106E  LEU*     3.3    31.2    -      -       +      -
    150E  LYS*     1.3    74.2    -      -       -      +
    152E  LYS*     1.3    61.9    +      -       -      +
    181E  TYR*     3.6    29.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 152 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7E  THR*     6.2     0.7    -      -       -      -
      9E  VAL*     3.5    32.3    -      -       +      -
     10E  VAL      2.8     9.0    +      -       -      +
     11E  LEU*     3.6     3.7    -      -       +      +
     12E  LEU*     3.0    24.1    +      -       -      -
     35E  MET*     5.0     5.2    -      -       +      -
     41E  TYR*     4.8    15.2    +      -       -      -
     99E  LEU*     4.3     4.0    -      -       -      -
    150E  LYS*     3.9    23.5    -      -       +      +
    151E  VAL*     1.3    78.8    -      -       -      +
    153E  LEU*     1.3    62.7    +      -       -      +
    154E  LEU      3.4     0.3    +      -       -      -
    181E  TYR      2.7    25.7    +      -       -      +
    182E  GLY*     3.8     9.4    -      -       -      +
    184E  ILE*     4.2    22.0    -      -       +      -
    209E  ASN*     2.9    32.5    +      -       -      +
    211E  HIS*     5.5     3.5    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 153 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12E  LEU      3.3    18.4    -      -       -      +
     14E  CYS*     4.3    17.7    -      -       +      +
     95E  THR*     3.7    32.3    -      -       +      -
     99E  LEU*     4.0    20.6    -      -       +      +
    152E  LYS*     1.3    71.9    -      -       -      +
    154E  LEU*     1.3    62.8    +      -       -      +
    155E  CYS*     4.0     3.3    +      -       +      -
    159E  LEU*     4.6    20.9    -      -       +      -
    163E  PHE*     5.7     0.9    -      -       +      -
    169E  TRP*     5.2     3.1    -      -       +      -
    177E  ILE*     4.4     8.5    -      -       +      -
    182E  GLY      3.0     9.1    +      -       -      +
    183E  LEU*     3.4    31.5    -      -       +      +
    184E  ILE*     2.8    32.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 154 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11E  LEU*     4.3    15.3    -      -       +      -
     12E  LEU      2.8    23.6    +      -       -      +
     13E  ALA*     3.7    14.6    -      -       +      +
     14E  CYS      4.5     0.9    +      -       -      -
     27E  LEU*     3.8    22.6    -      -       +      +
     28E  PHE*     3.8    46.4    -      -       +      -
     31E  ALA*     4.0    15.0    -      -       +      -
    152E  LYS      3.4     0.8    +      -       -      -
    153E  LEU*     1.3    74.9    -      -       -      +
    155E  CYS*     1.3    74.5    +      -       -      +
    159E  LEU*     5.4     0.3    -      -       -      +
    184E  ILE*     3.4    15.3    -      -       +      +
    186E  VAL*     3.9    23.8    -      -       +      -
    813E  TAD      3.9     5.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 155 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27E  LEU*     4.6     6.3    -      -       -      -
    153E  LEU*     4.7     2.9    -      -       +      -
    154E  LEU*     1.3    78.1    -      -       -      +
    156E  GLY*     1.3    64.1    +      -       -      +
    159E  LEU*     3.8    26.5    -      -       +      -
    160E  LEU      4.7     2.2    -      -       -      -
    183E  LEU*     4.3    26.7    -      -       -      -
    184E  ILE      2.9    14.6    +      -       -      +
    185E  CYS*     3.2    15.2    -      -       -      -
    186E  VAL*     2.8    34.5    +      -       -      +
    813E  TAD      3.2    18.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 156 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    155E  CYS*     1.3    83.2    -      -       -      +
    157E  ALA*     1.3    65.1    +      -       -      -
    158E  ASP      3.2     3.8    +      -       -      -
    159E  LEU      3.3     8.1    +      -       -      -
    160E  LEU      3.4     8.1    +      -       -      -
    185E  CYS*     3.7     5.4    -      -       -      -
    186E  VAL      3.2    11.7    -      -       -      -
    813E  TAD      3.0    36.2    +      -       -      -
----------------------------------------------------------
 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