Contacts of the strand formed by residues 423 - 428 (chain A) in PDB entry 3KB5


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 423 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    416A  TYR*     4.3    13.0    -      -       +      -
    417A  LEU*     3.6     1.2    -      -       -      -
    418A  SER*     3.0    49.1    +      -       -      -
    421A  ASP*     4.0    14.4    -      -       +      +
    422A  GLY*     1.3    80.2    -      -       -      +
    424A  LEU*     1.3    72.2    +      -       -      +
    425A  SER*     4.1     6.3    -      -       -      +
    440A  ALA*     4.2     5.4    -      -       +      -
    441A  PHE      3.1    15.7    -      -       -      +
    442A  HIS*     3.6    25.8    -      -       +      +
    445A  LEU*     3.5    11.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 424 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    347A  TRP*     4.7     6.5    -      -       +      -
    360A  GLY*     4.4     0.4    -      -       -      -
    361A  VAL*     4.0    24.0    -      -       +      +
    381A  TRP*     3.6    39.7    -      -       +      +
    415A  LEU*     4.8     5.2    -      -       +      -
    416A  TYR      3.3    17.7    -      -       -      +
    417A  LEU*     4.0    17.0    -      -       +      -
    423A  VAL*     1.3    76.7    -      -       -      +
    425A  SER*     1.3    63.3    +      -       -      +
    426A  PHE*     3.8    22.2    -      -       +      -
    440A  ALA*     3.4     1.0    -      -       -      -
    441A  PHE*     2.8    39.5    +      -       +      +
    445A  LEU*     4.0    14.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 425 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    414A  GLY      3.8     0.3    -      -       -      +
    415A  LEU*     3.4     5.5    -      -       -      +
    416A  TYR*     2.8    60.4    +      -       -      +
    423A  VAL*     4.1     5.6    -      -       -      -
    424A  LEU*     1.3    75.7    -      -       -      +
    426A  PHE*     1.3    64.2    +      -       -      +
    427A  TYR*     3.3    21.9    +      -       -      -
    439A  PHE      3.4     5.2    -      -       -      -
    440A  ALA*     3.8    16.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 426 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    359A  LEU*     3.4    27.4    -      -       +      -
    360A  GLY*     4.1     0.2    -      -       -      -
    381A  TRP      4.1     3.6    -      -       -      -
    383A  LEU*     3.6    46.2    -      -       +      -
    413A  ILE*     4.3     5.6    -      -       +      -
    414A  GLY      3.3     4.5    -      -       -      +
    415A  LEU*     3.6    29.8    -      -       +      -
    424A  LEU*     3.8    26.7    -      -       +      -
    425A  SER*     1.3    75.8    -      -       -      +
    427A  TYR*     1.3    66.5    +      -       -      +
    437A  PRO*     3.8     1.2    -      -       -      +
    438A  LEU*     2.9    26.0    +      -       +      -
    439A  PHE*     2.8    35.3    +      +       +      +
    441A  PHE*     3.9    27.8    -      +       -      -
----------------------------------------------------------
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Residues in contact with TYR 427 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    281A  PHE*     4.3    27.9    -      +       +      -
    285A  MET*     4.2    20.1    -      -       +      +
    346A  TYR*     4.7     6.5    -      +       -      -
    413A  ILE*     3.4     9.2    -      -       -      +
    414A  GLY*     2.8    42.6    +      -       -      +
    416A  TYR*     4.0    14.9    -      -       +      +
    425A  SER*     3.3    34.6    +      -       -      -
    426A  PHE*     1.3    75.0    -      -       -      +
    428A  ASP*     1.3    61.6    +      -       -      +
    429A  ALA      3.4     0.3    +      -       -      -
    435A  LEU*     4.1    30.7    -      -       +      -
    436A  VAL      3.2     7.9    -      -       -      +
    437A  PRO*     3.5    35.7    -      -       +      -
    438A  LEU*     3.9     6.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 428 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    405A  SER      4.9     2.4    -      -       -      +
    406A  PRO*     5.6     2.6    -      -       +      +
    407A  GLU*     5.9     1.7    -      -       -      +
    408A  ARG*     4.1    10.0    +      -       -      +
    410A  PRO*     3.3    29.4    -      -       +      +
    412A  ARG      3.8     3.1    -      -       -      -
    427A  TYR*     1.3    70.8    -      -       -      +
    429A  ALA*     1.3    57.6    +      -       -      +
    430A  SER*     2.7    31.7    +      -       -      -
    431A  ASP      5.1     0.9    +      -       -      -
    434A  ALA      4.0     1.6    -      -       -      +
    435A  LEU*     3.6     4.9    -      -       -      -
    436A  VAL*     2.7    47.8    +      -       +      +
    438A  LEU*     3.8    18.9    -      -       +      +
----------------------------------------------------------
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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