Contacts of the strand formed by residues 59 - 67 (chain B) in PDB entry 1KSG


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 VAL 59 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22B  LEU*     4.0    29.2    -      -       +      -
     23B  ARG      3.1    19.5    -      -       -      +
     25B  ALA      4.3     0.7    -      -       -      +
     31B  LEU*     5.3     2.9    -      -       +      -
     53B  ILE*     4.2    33.7    -      -       +      +
     56B  CYS*     4.5     7.2    -      -       +      +
     57B  LYS      5.4     0.2    -      -       -      -
     58B  ALA*     1.3    80.5    -      -       -      +
     60B  SER*     1.3    60.8    +      -       -      +
     61B  ARG*     4.0     2.9    +      -       +      +
    107B  SER      3.7     0.5    -      -       -      +
    108B  LEU*     3.6     4.3    -      -       -      -
    109B  ILE*     2.9    51.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 60 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37A  ASN*     5.6     0.7    -      -       -      -
     39A  GLU*     4.2     4.3    +      -       -      -
     21B  ASN*     3.8     5.5    -      -       -      +
     23B  ARG*     3.1    48.9    +      -       -      +
     25B  ALA*     4.5     5.4    +      -       -      +
     59B  VAL*     1.3    74.0    -      -       -      +
     61B  ARG*     1.3    62.7    -      -       -      +
     62B  GLU*     3.7     1.7    +      -       -      +
    106B  GLN*     3.6    26.9    +      -       -      +
    107B  SER      3.0    13.9    -      -       -      -
    108B  LEU*     4.1    12.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 61 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20B  MET*     4.7    12.3    -      -       -      -
     21B  ASN      3.6     5.8    -      -       -      +
     22B  LEU*     3.3    27.3    -      -       +      +
     59B  VAL*     4.0     5.4    +      -       +      +
     60B  SER*     1.3    72.9    -      -       -      +
     62B  GLU*     1.3    59.6    +      -       -      +
     63B  LEU*     5.5     2.7    -      -       +      -
     78B  GLN*     2.9    38.4    -      -       -      +
     80B  VAL*     3.7    11.5    -      -       -      +
     88B  GLU*     2.4    34.4    +      -       -      -
     90B  TRP*     2.9    24.7    -      -       -      +
    105B  TRP*     3.9    10.2    -      -       +      +
    106B  GLN*     3.0     3.8    -      -       -      +
    107B  SER*     2.9    37.0    +      -       -      +
    109B  ILE*     4.9    11.3    -      -       +      +
    129B  ILE*     5.1    11.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 62 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  LYS*     5.4     4.8    +      -       -      -
     53A  LYS*     5.3     3.2    +      -       -      -
     19B  TRP*     3.2    30.9    -      -       +      +
     20B  MET*     3.3     4.5    -      -       -      -
     21B  ASN*     3.0    44.4    +      -       -      +
     23B  ARG*     2.6    37.8    +      -       -      +
     60B  SER      4.7     0.2    -      -       -      +
     61B  ARG*     1.3    75.1    -      -       -      +
     63B  LEU*     1.3    67.1    +      -       -      +
    104B  THR*     3.2    24.5    +      -       +      +
    105B  TRP      3.2    11.2    -      -       -      +
    106B  GLN*     3.8    18.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 63 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17B  LEU*     4.1    13.2    -      -       +      -
     19B  TRP*     3.5     4.5    -      -       -      -
     20B  MET*     3.2    47.6    -      -       +      -
     61B  ARG*     5.5     1.6    -      -       +      -
     62B  GLU*     1.3    79.3    -      -       -      +
     64B  ASN*     1.3    59.8    +      -       -      +
     65B  PHE*     4.2     6.4    +      -       +      -
     76B  LEU*     3.8    16.8    -      -       +      -
     78B  GLN*     4.4     3.8    -      -       -      +
     94B  PHE*     6.3     0.7    -      -       +      -
    104B  THR*     3.3     6.2    -      -       -      +
    105B  TRP*     2.8    55.6    +      -       +      +
    131B  THR*     4.1     9.0    -      -       +      -
    133B  PHE*     3.6    28.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 64 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17B  LEU*     3.5     6.6    -      -       -      +
     18B  ASN*     2.7    54.4    +      -       -      +
     19B  TRP*     2.9    54.9    +      -       +      +
     63B  LEU*     1.3    74.9    -      -       -      +
     65B  PHE*     1.3    60.7    +      -       -      +
    102B  THR*     3.5    18.2    -      -       -      +
    103B  ASN      3.2     8.4    +      -       -      -
    104B  THR*     3.5    17.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 65 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50A  PHE*     4.1    14.4    -      +       -      -
     15B  PHE*     3.7    28.7    -      +       +      -
     16B  LYS      3.2    11.2    -      -       -      +
     17B  LEU*     4.2     3.6    -      -       +      -
     18B  ASN*     4.0     1.3    -      -       -      +
     63B  LEU*     4.9     6.7    -      -       +      -
     64B  ASN*     1.3    78.8    -      -       -      +
     66B  SER*     1.3    67.5    +      -       -      +
     67B  SER*     5.1     1.6    -      -       -      -
     74B  PHE*     3.7    24.2    -      +       -      -
     94B  PHE*     4.2    20.2    -      +       -      -
     97B  VAL*     4.7     8.1    -      -       +      -
    102B  THR*     3.5     1.2    -      -       -      +
    103B  ASN*     2.8    67.8    +      -       +      -
    105B  TRP*     4.9     7.9    -      -       +      -
    133B  PHE*     3.6    23.6    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 66 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14B  GLY      4.2     2.0    -      -       -      -
     15B  PHE*     3.5     6.4    -      -       -      -
     16B  LYS*     2.8    38.2    +      -       -      +
     18B  ASN*     2.9    24.1    +      -       -      +
     65B  PHE*     1.3    75.9    -      -       -      +
     67B  SER*     1.3    63.5    +      -       -      +
    101B  SER      3.2    11.9    -      -       -      -
    102B  THR*     3.5    15.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 67 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11B  ILE      5.4     1.2    +      -       -      -
     14B  GLY      3.4     8.2    +      -       -      -
     15B  PHE*     4.9     5.6    -      -       -      +
     65B  PHE*     5.1     3.4    -      -       -      -
     66B  SER*     1.3    76.9    -      -       -      +
     68B  THR*     1.3    60.4    +      -       -      +
     69B  GLU*     2.8    27.2    +      -       -      +
     71B  MET*     3.1    27.2    -      -       -      +
     97B  VAL*     4.1    14.8    -      -       -      -
     98B  ILE      3.9     1.6    -      -       -      +
     99B  PRO      3.8     0.9    -      -       -      -
    100B  ASN*     2.9    20.0    +      -       -      -
    101B  SER*     3.1    16.3    +      -       -      -
----------------------------------------------------------
 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