Contacts of the strand formed by residues 724 - 733 (chain A) in PDB entry 3K57


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 ASN 724 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    691A  PRO*     3.9    21.0    -      -       -      +
    721A  GLN      5.1     1.2    +      -       -      -
    722A  TYR      3.4     0.4    -      -       -      -
    723A  GLN*     1.3    80.4    -      -       +      +
    725A  ARG*     1.3    94.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 725 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    261A  LYS*     4.9    15.9    -      -       -      +
    688A  LEU*     3.3    22.4    -      -       -      +
    689A  ARG*     3.1    26.5    +      -       -      +
    690A  ARG      4.0    14.2    +      -       -      +
    691A  PRO*     3.8    22.9    -      -       -      +
    694A  GLU*     5.3     0.6    +      -       -      -
    721A  GLN      4.4    10.9    -      -       -      +
    722A  TYR*     4.2     6.3    +      -       -      +
    723A  GLN      3.8     2.6    -      -       -      -
    724A  ASN*     1.3   101.7    +      -       -      +
    726A  GLY*     1.3    61.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 726 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    687A  ARG*     3.4     5.6    -      -       -      +
    688A  LEU*     2.6    40.8    +      -       -      +
    722A  TYR*     5.8     2.5    -      -       -      -
    725A  ARG*     1.3    80.6    -      -       -      +
    727A  THR*     1.3    59.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 727 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    685A  ARG*     3.5    38.8    -      -       +      +
    686A  LYS*     3.5    12.8    -      -       -      +
    687A  ARG*     3.6    17.7    +      -       +      +
    688A  LEU*     5.1     0.2    -      -       -      -
    722A  TYR*     3.7    14.6    +      -       -      -
    726A  GLY*     1.3    75.5    -      -       -      -
    728A  ILE*     1.3    63.0    -      -       -      +
    729A  LYS*     4.3     5.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 728 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    684A  TYR      3.6     1.0    -      -       -      +
    685A  ARG*     3.5     1.9    -      -       -      -
    686A  LYS      2.8    39.8    +      -       -      +
    688A  LEU*     4.1    15.7    -      -       +      -
    702A  HIS*     3.7    39.9    -      -       +      +
    705A  ALA*     4.6     2.7    -      -       +      -
    706A  ALA*     4.2    12.1    -      -       -      +
    722A  TYR*     3.3    44.6    -      -       +      +
    727A  THR*     1.3    75.4    -      -       -      +
    729A  LYS*     1.3    79.9    +      -       -      +
    730A  TYR*     3.8     7.4    -      -       +      -
    739A  PRO*     4.3    12.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 729 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    683A  VAL*     3.9    18.8    -      -       +      -
    684A  TYR      3.2     4.9    -      -       -      -
    685A  ARG*     4.0    45.3    -      -       +      +
    722A  TYR*     5.2     0.8    +      -       -      -
    727A  THR*     4.3     4.7    +      -       +      +
    728A  ILE*     1.3    84.3    -      -       -      +
    730A  TYR*     1.3    63.7    +      -       -      +
    739A  PRO*     3.6     2.9    -      -       -      +
    740A  LEU*     3.1    39.2    +      -       +      +
    741A  ASP*     4.9     2.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 730 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    683A  VAL*     3.7     1.7    -      -       -      +
    684A  TYR*     2.8    73.6    +      +       +      +
    686A  LYS*     3.3    35.2    +      -       +      -
    701A  PRO*     4.5     8.6    -      -       +      +
    702A  HIS*     3.4    36.1    +      -       +      +
    705A  ALA*     3.7    18.4    -      -       +      -
    728A  ILE*     3.8    18.2    -      -       +      -
    729A  LYS*     1.3    75.1    -      -       -      +
    731A  VAL*     1.3    70.9    +      -       -      +
    732A  TRP*     4.7     5.6    -      +       -      -
    737A  PRO*     4.0    23.3    -      -       +      -
    738A  GLU      3.3    15.0    -      -       -      +
    740A  LEU      3.8     2.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 731 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    682A  LEU*     4.0    12.8    -      -       +      +
    683A  VAL*     4.1     9.0    -      -       +      -
    684A  TYR*     4.5     1.1    -      -       -      -
    730A  TYR*     1.3    85.7    -      -       -      +
    732A  TRP*     1.3    61.2    +      -       -      +
    733A  THR*     3.5     5.8    +      -       +      -
    737A  PRO*     3.4     3.8    -      -       -      +
    738A  GLU      3.0    34.7    +      -       -      +
    740A  LEU*     4.0    24.5    -      -       +      -
    743A  GLN*     3.8    36.1    -      -       +      +
    747A  LEU*     3.8    16.2    -      -       +      -
    752A  TYR*     3.6     8.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 732 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    684A  TYR*     4.4    11.6    -      +       +      -
    701A  PRO*     3.8    24.0    -      -       +      -
    730A  TYR*     4.7     5.8    -      +       -      -
    731A  VAL*     1.3    71.8    -      -       -      +
    733A  THR*     1.3    74.7    +      -       -      +
    736A  GLY*     4.0     8.2    -      -       -      +
    737A  PRO*     3.9    29.8    -      -       +      -
    747A  LEU*     3.6     4.8    -      -       -      +
    748A  ASP*     2.8    32.8    +      -       +      +
    751A  HIS*     3.4    60.7    -      +       +      +
    752A  TYR*     2.9    21.5    +      -       +      +
    812T    A      4.1    22.9    -      -       -      -
    813T    G      4.1    20.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 733 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    731A  VAL*     4.1    14.6    -      -       +      +
    732A  TRP*     1.3    89.1    +      -       -      +
    734A  THR*     1.3    59.3    +      -       -      +
    735A  ASN      2.9    11.0    +      -       -      -
    736A  GLY      2.5    34.9    +      -       -      +
    738A  GLU*     3.5    34.1    +      -       +      +
    743A  GLN*     4.1     2.2    -      -       +      +
    745A  SER*     3.4    30.8    -      -       -      +
    746A  PRO      3.2    12.8    -      -       -      +
    747A  LEU*     4.1     0.4    -      -       -      +
    748A  ASP*     3.5     7.4    -      -       -      +
----------------------------------------------------------
 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