Contacts of the strand formed by residues 56 - 65 (chain B) 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 ALA 56 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    449A  GLN*     2.8    19.2    +      -       -      +
    453A  HIS*     3.0    20.0    +      -       -      -
     53B  THR*     4.0     5.4    -      -       -      -
     54B  ILE      3.0     4.7    +      -       -      -
     55B  GLY*     1.3    75.6    -      -       -      +
     57B  ALA*     1.3    60.6    +      -       -      +
     75B  TRP*     4.2    10.1    -      -       +      -
     76B  ASP      3.2    15.3    -      -       -      +
     77B  THR*     4.2     4.0    -      -       -      -
     90B  TYR*     3.4    35.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 57 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    453A  HIS*     3.9     5.2    -      -       +      -
     53B  THR*     4.1     6.3    -      -       +      +
     56B  ALA*     1.3    74.5    -      -       -      +
     58B  PHE*     1.3    61.8    +      -       -      +
     59B  LEU*     4.3     3.9    +      -       +      +
     74B  ILE      3.9     0.3    -      -       -      +
     75B  TRP*     3.8     6.9    -      -       -      -
     76B  ASP*     3.1    32.2    +      -       -      +
    302B  EDO      3.9    35.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 58 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    453A  HIS*     3.5    46.2    +      -       +      +
    454A  LEU*     4.6    11.7    -      -       +      -
    457A  GLN*     3.4    35.2    -      -       +      -
    473A  TYR*     4.7     8.7    -      +       -      -
    476A  GLN*     5.9     0.2    -      -       -      -
     57B  ALA*     1.3    74.8    -      -       -      +
     59B  LEU*     1.3    79.9    +      -       -      +
     60B  THR*     3.9    15.3    -      -       -      -
     73B  GLU*     4.3    15.5    -      -       +      -
     74B  ILE      3.5    11.4    -      -       -      -
     75B  TRP*     3.2    47.1    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 59 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    457A  GLN*     5.4     1.3    -      -       -      +
     38B  VAL*     4.3    11.2    -      -       +      -
     39B  LEU*     6.5     0.2    -      -       -      -
     42B  VAL*     4.0    36.3    -      -       +      -
     43B  LYS*     5.5     8.5    -      -       +      -
     57B  ALA*     4.8     2.0    -      -       +      -
     58B  PHE*     1.3   100.0    -      -       -      +
     60B  THR*     1.3    68.7    +      -       -      +
     61B  GLN      4.3     0.2    -      -       -      -
     74B  ILE*     3.1    42.2    +      -       +      +
     76B  ASP*     6.4     0.4    -      -       +      -
    302B  EDO      3.6    29.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 60 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    457A  GLN*     4.1    17.0    +      -       -      +
    460A  LYS*     5.8     2.6    +      -       -      -
    461A  GLU*     5.1     4.7    -      -       -      +
    473A  TYR*     4.3     8.0    +      -       -      -
     42B  VAL*     5.7     2.3    -      -       -      +
     58B  PHE*     3.9    17.0    -      -       -      -
     59B  LEU*     1.3    80.0    +      -       -      +
     61B  GLN*     1.3    63.0    +      -       -      +
     62B  THR*     4.3     5.7    +      -       -      +
     71B  LYS*     3.6    38.1    -      -       +      +
     72B  PHE      3.4     9.8    +      -       -      +
     73B  GLU*     4.5     2.4    -      -       -      +
     74B  ILE      5.0     0.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 61 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41B  PHE*     3.9    33.2    +      -       +      +
     42B  VAL*     3.3    56.4    +      -       +      +
     59B  LEU      4.3     0.6    -      -       -      -
     60B  THR*     1.3    76.8    -      -       -      +
     62B  THR*     1.3    87.7    +      -       -      +
     63B  VAL*     4.0     8.7    -      -       +      -
     71B  LYS*     4.0     0.2    -      -       -      -
     72B  PHE*     3.1    35.6    +      -       -      +
     74B  ILE*     4.3     7.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 62 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19B  ILE*     5.9     1.1    -      -       +      -
     60B  THR*     4.3     4.5    +      -       -      +
     61B  GLN*     1.3    88.7    +      -       -      +
     63B  VAL*     1.3    62.6    +      -       -      +
     69B  THR*     3.6    23.3    -      -       +      -
     70B  VAL      3.4    17.9    -      -       -      +
     71B  LYS*     3.9    22.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 63 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41B  PHE*     4.3    24.2    -      -       +      +
     61B  GLN*     4.0     9.6    +      -       +      -
     62B  THR*     1.3    80.4    -      -       -      +
     64B  CYS*     1.3    61.6    +      -       -      +
     65B  LEU*     5.1     0.7    -      -       +      +
     69B  THR*     4.1     1.0    -      -       -      +
     70B  VAL*     2.9    47.8    +      -       +      +
     72B  PHE*     4.1    17.3    -      -       +      -
    172B  ASN*     5.4     4.5    -      -       -      +
    176B  MET*     4.7    28.9    -      -       +      -
    179B  ALA*     5.6     1.8    -      -       +      -
     69D  THR*     5.7     0.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 64 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63B  VAL*     1.3    74.3    -      -       -      +
     65B  LEU*     1.3    62.2    +      -       -      +
     68B  THR      3.5     8.7    -      -       -      +
     69B  THR*     3.9     7.2    -      -       +      +
    176B  MET*     4.8     4.9    -      -       -      +
     64D  CYS*     1.9    63.3    -      -       -      -
     67D  ASP*     3.3    19.0    +      -       -      +
     68D  THR      4.2     4.0    -      -       -      -
     69D  THR*     2.8    24.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 65 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63B  VAL*     4.1     2.2    +      -       +      +
     64B  CYS*     1.3    69.6    -      -       -      +
     66B  ASP*     1.3    88.3    +      -       -      +
     68B  THR*     2.7    39.9    -      -       +      +
     70B  VAL*     3.7    30.6    -      -       +      +
    176B  MET*     4.1    21.3    -      -       +      +
    179B  ALA*     3.8    27.8    -      -       +      +
    180B  LYS*     3.9    27.1    -      -       +      +
     67D  ASP*     3.8     4.7    -      -       -      +
----------------------------------------------------------
 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