Contacts of the strand formed by residues 68 - 77 (chain D) in PDB entry 4KYI


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 THR 68 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64B  CYS*     4.4     1.4    +      -       -      -
     19D  ILE      5.9     1.8    -      -       -      +
     20D  CYS*     6.4     2.0    -      -       +      -
     64D  CYS*     3.2     3.5    -      -       -      -
     65D  LEU*     2.7    51.4    +      -       +      +
     66D  ASP      2.9     9.3    +      -       -      -
     67D  ASP*     1.3    80.8    +      -       -      +
     69D  THR*     1.3    68.6    +      -       -      +
     70D  VAL*     4.9     5.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 69 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62B  THR      5.8     0.2    +      -       -      -
     63B  VAL*     5.7     0.7    -      -       -      -
     64B  CYS*     2.8    27.2    +      -       -      -
     19D  ILE*     3.8    24.1    +      -       +      +
     20D  CYS*     3.7    17.5    +      -       -      +
     62D  THR*     3.6    30.3    -      -       +      -
     63D  VAL      4.2     1.8    -      -       -      +
     64D  CYS*     3.5     5.2    -      -       +      -
     68D  THR*     1.3    75.6    -      -       -      +
     70D  VAL*     1.3    69.5    +      -       -      +
     71D  LYS*     5.7     1.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 70 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20D  CYS*     3.5     7.6    -      -       +      +
     22D  PHE*     3.6    31.2    -      -       +      -
     62D  THR*     3.9     1.6    -      -       -      -
     63D  VAL*     2.8    56.9    +      -       +      +
     65D  LEU*     4.1    26.0    -      -       +      -
     68D  THR*     3.9     6.9    +      -       +      +
     69D  THR*     1.3    82.7    -      -       -      +
     71D  LYS*     1.3    61.2    +      -       -      +
     72D  PHE*     4.1     9.2    -      -       +      -
    176D  MET*     6.4     0.2    -      -       +      -
    179D  ALA*     4.4    18.2    -      -       +      +
    182D  LEU*     6.2     1.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 71 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    461C  GLU*     2.3    38.2    +      -       -      -
    466C  ASP*     3.8     9.9    +      -       -      +
    473C  TYR*     3.8     6.0    +      -       -      -
     19D  ILE*     5.4    10.3    -      -       +      -
     20D  CYS      2.9     9.8    +      -       -      +
     21D  GLN*     3.3    43.7    -      -       +      +
     22D  PHE      3.1    24.8    +      -       -      +
     60D  THR*     3.6    29.4    -      -       +      -
     61D  GLN      4.0     2.5    -      -       -      -
     62D  THR*     4.2    16.8    -      -       +      +
     69D  THR*     5.7     0.9    -      -       +      -
     70D  VAL*     1.3    73.6    -      -       -      +
     72D  PHE*     1.3    65.8    +      -       -      +
     73D  GLU*     3.8     3.0    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 72 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22D  PHE*     3.6    30.5    -      +       +      -
     24D  LEU*     4.2    21.3    -      -       +      -
     41D  PHE*     4.2    13.7    -      +       -      -
     60D  THR*     3.4    30.7    -      -       -      +
     61D  GLN      3.1    15.0    +      -       -      +
     63D  VAL*     4.1    20.0    -      -       +      -
     70D  VAL*     4.7     7.6    -      -       +      -
     71D  LYS*     1.3    75.5    -      -       -      +
     73D  GLU*     1.3    60.6    +      -       -      +
     74D  ILE*     3.5    17.0    -      -       +      -
     96D  ALA*     5.9     1.1    -      -       +      -
    175D  PHE*     3.8    51.1    -      +       +      -
    178D  ILE*     5.0     4.0    -      -       +      -
    179D  ALA*     4.3    18.6    -      -       +      -
    182D  LEU*     5.1     5.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 73 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    472C  ASN*     2.9    26.6    +      -       -      -
    473C  TYR*     3.7    17.5    -      -       +      +
    476C  GLN*     3.1    26.5    +      -       -      +
     21D  GLN*     3.2    19.8    -      -       +      +
     22D  PHE      2.9    19.1    +      -       -      +
     23D  LYS*     4.0    14.9    -      -       -      +
     24D  LEU      3.0    19.5    +      -       -      +
     58D  PHE*     4.0    19.9    -      -       +      -
     59D  LEU      4.3     0.9    -      -       -      -
     60D  THR*     4.4     2.2    -      -       -      +
     71D  LYS*     4.6     7.6    -      -       +      +
     72D  PHE*     1.3    72.9    -      -       -      +
     74D  ILE*     1.3    58.8    +      -       -      +
     75D  TRP*     3.1    18.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 74 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24D  LEU*     3.6    13.2    -      -       +      -
     26D  LEU*     3.6    24.9    -      -       +      -
     38D  VAL*     3.7    28.5    -      -       +      -
     41D  PHE*     3.7    36.6    -      -       +      -
     42D  VAL*     4.6     6.7    -      -       +      -
     57D  ALA      3.8     0.4    -      -       -      +
     58D  PHE*     3.1     8.7    -      -       -      -
     59D  LEU*     3.1    37.4    +      -       +      +
     61D  GLN*     4.7     5.2    -      -       +      +
     72D  PHE*     3.5    20.3    -      -       +      +
     73D  GLU*     1.3    70.3    -      -       -      +
     75D  TRP*     1.3    62.0    +      -       -      +
     76D  ASP*     4.3     4.7    -      -       +      +
    175D  PHE*     4.2     9.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 75 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    450C  ALA*     4.0    40.4    -      -       +      -
    453C  HIS*     4.4     5.2    -      -       +      -
    454C  LEU*     3.8    22.4    -      -       +      -
    476C  GLN*     4.7     5.5    +      -       -      -
     23D  LYS*     3.8    31.7    -      -       -      +
     24D  LEU      2.8    17.6    +      -       -      +
     25D  VAL*     3.6     8.7    -      -       +      -
     26D  LEU*     3.2    23.8    +      -       -      -
     56D  ALA*     4.4    11.0    -      -       +      -
     57D  ALA      3.8     2.5    -      -       -      -
     58D  PHE*     3.3    48.0    -      +       +      -
     73D  GLU*     3.1    29.7    +      -       -      +
     74D  ILE*     1.3    72.6    -      -       -      +
     76D  ASP*     1.3    63.2    +      -       -      +
     77D  THR*     3.4     6.0    +      -       +      +
     90D  TYR*     4.3    29.2    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 76 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26D  LEU*     4.5     9.3    -      -       -      +
     34D  LYS*     3.7    22.6    -      -       -      +
     35D  SER*     2.7    37.8    +      -       -      -
     38D  VAL*     4.2    17.1    -      -       +      +
     53D  THR*     4.0     7.2    +      -       -      +
     56D  ALA*     3.2     3.4    -      -       -      +
     57D  ALA*     2.7    53.4    +      -       +      +
     59D  LEU*     6.0     1.6    -      -       +      -
     74D  ILE*     3.9     4.1    -      -       +      +
     75D  TRP*     1.3    69.4    -      -       -      +
     77D  THR*     1.3    74.1    +      -       -      +
    302D   MG      3.8     0.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 77 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25D  VAL*     4.0     5.6    -      -       +      -
     26D  LEU      2.4    28.6    +      -       -      +
     27D  LEU*     3.5    19.9    -      -       +      +
     28D  GLY      4.9     0.3    +      -       -      -
     34D  LYS*     3.6    11.1    -      -       -      -
     53D  THR*     4.0     9.4    +      -       -      -
     55D  GLY      3.9     8.3    -      -       -      -
     56D  ALA*     4.4     1.6    -      -       +      +
     75D  TRP      3.4    11.6    +      -       -      +
     76D  ASP*     1.3    89.9    +      -       -      +
     78D  ALA*     1.3    67.0    +      -       -      +
     90D  TYR*     3.5    41.1    -      -       +      -
----------------------------------------------------------
 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