Contacts of the strand formed by residues 110 - 115 (chain C) in PDB entry 1KI1


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 PHE 110 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77C  VAL*     4.7     1.6    -      -       -      -
     78C  PHE*     3.3    27.1    -      -       +      +
     80C  VAL*     3.8    12.1    -      -       +      -
     98C  VAL*     3.9    33.7    -      -       +      -
    101C  ILE*     3.9    17.7    -      -       +      -
    102C  THR*     5.2     3.4    -      -       -      -
    108C  THR      4.5     5.6    -      -       -      -
    109C  PRO*     1.3    78.6    -      -       +      +
    111C  LEU*     1.3    77.0    +      -       -      +
    112C  LEU*     4.7     6.3    -      -       +      -
    149C  LEU*     3.5    25.8    -      -       +      -
    150C  LYS      3.6    15.0    -      -       -      -
    151C  ALA*     3.3    23.3    -      -       +      -
    152C  VAL*     2.9    27.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 111 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77C  VAL*     5.0     2.5    -      -       +      -
     78C  PHE      3.0     6.4    +      -       -      +
     79C  LEU*     3.7    26.1    -      -       +      -
     80C  VAL*     3.0    29.8    +      -       -      +
    110C  PHE*     1.3    79.5    -      -       -      +
    112C  LEU*     1.3    62.0    +      -       -      +
    113C  VAL*     3.7     4.7    +      -       +      -
    152C  VAL*     3.8    26.2    -      -       +      -
    153C  LYS*     3.6    23.6    -      -       +      +
    155C  VAL*     4.4    13.0    -      -       +      -
    168C  VAL      3.8     8.5    -      -       -      +
    171C  GLU*     3.8     9.9    -      -       +      +
    172C  ALA*     3.6    27.8    -      -       -      +
    175C  ALA*     4.1    14.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 112 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80C  VAL*     3.6     9.9    -      -       +      +
     82C  PHE*     3.3    36.8    -      -       +      -
     90C  PHE*     4.7     0.4    -      -       +      -
     93C  VAL*     4.2    20.4    -      -       +      -
    110C  PHE*     4.9     5.2    -      -       +      -
    111C  LEU*     1.3    71.6    -      -       -      +
    113C  VAL*     1.3    59.6    +      -       -      +
    142C  ALA*     3.5    26.2    -      -       -      +
    145C  LEU*     4.3    15.9    -      -       +      +
    146C  ALA*     3.8    17.7    -      -       +      +
    149C  LEU*     5.6     1.8    -      -       +      -
    151C  ALA*     4.2    10.8    -      -       +      +
    153C  LYS      3.0    13.6    +      -       -      +
    154C  TYR*     3.3    12.8    -      -       +      -
    155C  VAL*     3.1    26.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 113 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19C  LEU*     5.0     3.8    -      -       +      -
     79C  LEU*     3.9    36.6    -      -       +      -
     80C  VAL      2.7    15.1    +      -       -      +
     81C  CYS*     3.3    18.0    -      -       -      +
     82C  PHE*     3.1    29.8    +      -       -      -
    111C  LEU*     4.1     5.6    -      -       +      +
    112C  LEU*     1.3    75.6    -      -       -      +
    114C  GLY*     1.3    72.2    +      -       -      +
    115C  THR*     4.7     2.5    -      -       -      +
    155C  VAL*     3.5    22.9    -      -       +      +
    157C  CYS*     4.3    13.2    -      -       -      -
    168C  VAL*     4.2    13.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 114 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82C  PHE*     3.6     9.9    -      -       -      -
     84C  VAL*     3.8     6.1    -      -       -      -
    113C  VAL*     1.3    77.3    -      -       -      +
    115C  THR*     1.3    60.9    +      -       -      -
    117C  ILE*     4.7     0.2    -      -       -      -
    154C  TYR*     3.3    29.4    -      -       -      -
    155C  VAL      2.7    13.4    +      -       -      -
    156C  GLU*     3.3     3.6    -      -       -      -
    157C  CYS*     3.1    25.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 115 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14C  VAL*     2.5    31.0    +      -       -      +
     15C  GLY*     4.8     0.8    +      -       -      -
     19C  LEU*     3.7    24.1    -      -       -      +
     81C  CYS*     4.6     5.6    -      -       -      +
     82C  PHE      2.8    17.0    +      -       -      -
     83C  SER*     3.3    14.1    -      -       -      +
     84C  VAL*     2.8    26.8    +      -       -      +
    113C  VAL*     4.5     2.8    +      -       -      +
    114C  GLY*     1.3    75.1    +      -       -      -
    116C  GLN*     1.3    83.6    +      -       +      +
    117C  ILE      3.3     3.1    -      -       -      -
    157C  CYS*     3.8     6.1    -      -       -      -
----------------------------------------------------------
 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