Contacts of the strand formed by residues 57 - 64 (chain A) in PDB entry 5LEK


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 ILE 57 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47A  LYS*     5.5     3.6    -      -       -      +
     49A  THR*     4.7     9.0    -      -       +      -
     50A  SER      3.6     5.8    -      -       -      +
     51A  ILE*     4.2    19.7    -      -       +      -
     55A  GLY      3.8    12.3    -      -       -      +
     56A  THR*     1.3    76.9    -      -       -      +
     58A  MET*     1.3    67.4    +      -       -      +
     59A  ASN*     3.8    19.1    -      -       -      +
    176A  TYR*     3.6    59.0    -      -       +      +
    136B  ILE*     5.9     1.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 58 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49A  THR*     3.1     8.8    -      -       -      -
     50A  SER*     2.9    45.2    +      -       -      +
     56A  THR      5.4     0.2    -      -       -      +
     57A  ILE*     1.3    76.4    -      -       -      +
     59A  ASN*     1.3    76.3    +      -       -      +
     60A  LEU*     3.8     6.1    +      -       +      +
    176A  TYR      3.6    13.7    -      -       -      +
    177A  SER      4.1     5.2    -      -       -      +
    179A  GLY*     4.5     7.2    -      -       -      +
    131B  PHE*     3.4    39.5    -      -       +      +
    132B  ASN*     3.8    23.8    -      -       -      +
    135B  SER*     3.8    26.7    -      -       -      +
    136B  ILE*     4.3    19.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 59 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47A  LYS*     3.5    22.1    +      -       +      +
     48A  LEU      3.8     3.6    -      -       -      +
     49A  THR*     3.5    14.7    -      -       -      +
     57A  ILE*     3.8     7.1    -      -       -      +
     58A  MET*     1.3    82.1    -      -       -      +
     60A  LEU*     1.3    67.4    +      -       -      +
     61A  GLN*     3.5     3.4    -      -       -      +
     62A  TYR*     3.9    16.8    +      -       +      +
    130A  LYS*     4.8     0.5    +      -       -      -
    173A  GLU*     2.9    33.1    +      -       -      -
    176A  TYR*     2.9    33.2    +      -       -      +
    177A  SER*     3.5    25.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 60 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48A  LEU*     2.8    29.0    +      -       +      +
     49A  THR      3.9    12.8    -      -       -      -
     50A  SER*     4.0    10.1    -      -       -      +
     58A  MET*     4.0    10.8    -      -       +      +
     59A  ASN*     1.3    73.7    -      -       -      +
     61A  GLN*     1.3    55.9    +      -       +      +
     83A  TYR*     3.5    42.2    -      -       +      -
    130A  LYS*     2.7    27.6    +      -       -      +
    128B  LEU*     3.5    49.6    -      -       +      +
    131B  PHE*     3.6    20.9    -      -       +      -
    132B  ASN*     4.1     6.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 61 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47A  LYS*     3.5     2.3    -      -       -      +
     48A  LEU*     2.9    29.5    +      -       +      +
     59A  ASN*     3.5     2.9    -      -       -      -
     60A  LEU*     1.3    83.3    -      -       +      +
     62A  TYR*     1.3    73.9    +      -       -      +
     63A  TYR*     3.3    42.2    +      -       +      -
     67A  PHE*     5.5     1.2    -      -       -      -
    123A  GLN*     2.7    29.4    +      -       -      +
    126A  TYR*     3.5    29.4    -      -       +      +
    127A  SER*     4.2     1.0    +      -       -      -
    130A  LYS*     3.7    14.6    -      -       -      +
    128B  LEU*     3.7    13.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 62 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45A  ILE*     5.0     0.2    -      -       +      -
     46A  THR      3.3     6.1    -      -       -      +
     47A  LYS*     3.8    18.6    -      -       +      -
     59A  ASN*     3.9    14.5    +      -       +      -
     61A  GLN*     1.3    91.8    +      -       -      +
     63A  TYR*     1.3    69.0    +      -       -      +
     64A  LYS      4.3     0.4    -      -       -      -
     88A  ILE*     3.7    31.9    -      -       +      -
    126A  TYR*     5.0     4.7    +      -       -      -
    146A  GLN*     3.6    29.2    -      -       +      -
    149A  ILE*     6.0     1.6    -      -       +      -
    150A  LEU*     4.1    18.6    -      -       +      +
    154A  TYR*     3.8    21.3    -      +       +      +
    166A  LEU*     4.9    11.0    -      -       +      -
    169A  LEU*     4.5    13.9    -      -       -      +
    173A  GLU*     4.3    10.8    +      -       -      +
    174A  LEU*     5.8     0.5    -      -       -      +
    177A  SER*     3.5    19.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 63 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  LEU*     3.6    11.5    -      -       +      +
     45A  ILE*     3.4     3.8    -      -       -      +
     46A  THR*     2.8    50.7    +      -       -      +
     48A  LEU*     4.1    22.5    -      -       +      +
     61A  GLN*     3.3    33.3    +      -       +      +
     62A  TYR*     1.3    76.5    -      -       -      +
     64A  LYS*     1.3    59.8    +      -       -      +
     67A  PHE*     3.5    35.0    -      +       +      -
     68A  VAL      4.4     1.0    +      -       -      -
     69A  ILE*     3.9    31.0    -      -       +      +
     85A  LEU*     4.2    13.7    -      -       +      -
    123A  GLN*     2.4    35.2    +      -       -      -
    154A  TYR*     4.4     2.9    -      -       -      -
    124B  VAL*     5.8     0.2    -      -       -      +
    128B  LEU*     5.0     3.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 64 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  LEU*     4.1     1.6    -      -       -      -
     44A  GLY      3.5     9.9    -      -       -      +
     45A  ILE*     4.5     8.3    -      -       +      +
     63A  TYR*     1.3    73.6    -      -       -      +
     65A  GLY*     1.3    76.9    +      -       -      +
     66A  ALA      3.7     8.5    +      -       -      +
     67A  PHE*     4.1     8.2    -      -       -      +
    153A  VAL*     3.8    37.7    +      -       +      +
    154A  TYR*     3.7    24.7    +      -       +      +
----------------------------------------------------------
 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