Contacts of the strand formed by residues 122 - 130 (chain B) in PDB entry 1ZN8


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 ARG 122 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57B  ARG*     3.2    68.2    +      -       -      +
     59B  ASP*     2.8    39.5    +      -       -      +
     60B  TYR      3.3     3.6    +      -       -      -
    120B  GLY      3.8    13.3    +      -       -      +
    121B  GLN*     1.3    77.1    -      -       -      +
    123B  VAL*     1.3    62.4    +      -       -      +
    149B  GLU*     3.0    33.8    +      -       +      +
    151B  LEU*     3.9    16.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 123 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58B  ILE*     4.8     0.7    -      -       -      -
     60B  TYR*     3.3    14.8    -      -       +      +
     61B  ILE      4.4     0.4    -      -       -      -
     62B  ALA*     3.6    31.0    -      -       +      +
     84B  VAL*     4.9     0.9    -      -       +      -
    117B  LEU*     3.3    40.6    -      -       +      -
    121B  GLN      4.5     3.8    -      -       -      +
    122B  ARG*     1.3    84.0    -      -       -      +
    124B  VAL*     1.3    69.4    +      -       -      +
    125B  VAL*     4.3     0.4    -      -       +      -
    143B  LEU*     4.4    15.3    -      -       +      -
    148B  ALA*     4.5     3.1    -      -       +      -
    149B  GLU      2.8    10.7    +      -       -      +
    150B  VAL*     3.5     6.4    -      -       +      +
    151B  LEU*     2.9    29.4    +      -       -      +
    152B  GLU      4.0     0.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 124 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50B  LEU*     3.8    34.3    -      -       +      -
     54B  HIS*     4.5     1.1    -      -       +      -
     58B  ILE*     4.0    29.3    -      -       +      +
     60B  TYR      3.2     5.3    +      -       -      -
     61B  ILE*     3.4    19.2    -      -       +      +
     62B  ALA      2.8    25.3    +      -       -      +
     75B  LEU*     5.7     0.4    -      -       +      -
    123B  VAL*     1.3    79.1    -      -       -      +
    125B  VAL*     1.3    72.2    -      -       -      +
    126B  VAL*     5.7     0.4    -      -       +      -
    151B  LEU*     4.1    12.3    -      -       +      -
    152B  GLU*     3.3    19.3    -      -       +      +
    154B  VAL*     4.1     9.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 125 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62B  ALA*     3.4    10.8    -      -       +      +
     64B  LEU*     3.8    36.3    -      -       +      -
    123B  VAL*     4.7     1.1    -      -       +      -
    124B  VAL*     1.3    74.0    -      -       -      +
    126B  VAL*     1.3    59.1    +      -       -      +
    136B  MET*     4.9     5.4    -      -       +      -
    139B  ALA*     4.2     9.6    -      -       +      -
    140B  CYS*     4.9     2.0    -      -       -      -
    143B  LEU*     3.3    33.2    -      -       +      -
    150B  VAL*     4.2    16.2    -      -       +      -
    152B  GLU      3.1     5.1    +      -       -      -
    153B  CYS*     3.3    19.1    -      -       -      +
    154B  VAL*     2.8    35.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 126 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46B  LEU*     4.8     7.4    -      -       +      -
     61B  ILE*     3.8     9.0    -      -       +      -
     62B  ALA      2.9    18.2    +      -       -      +
     63B  GLY*     4.0     3.4    -      -       -      -
     64B  LEU*     3.1    29.8    +      -       -      +
     68B  GLY*     3.8     3.8    -      -       -      +
     71B  PHE*     4.3    15.5    -      -       +      -
     72B  GLY*     3.6    33.4    -      -       -      +
     75B  LEU*     4.3    13.5    -      -       +      -
    124B  VAL*     3.9     0.4    +      -       +      -
    125B  VAL*     1.3    73.7    -      -       -      +
    127B  ASP*     1.3    73.1    +      -       -      +
    136B  MET*     4.5     0.9    -      -       -      -
    154B  VAL*     3.5    25.1    -      -       +      +
    155B  SER*     5.0     0.7    -      -       -      -
    156B  LEU*     5.5     0.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 127 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64B  LEU*     3.6    28.3    -      -       +      +
     65B  ASP      5.3     1.8    -      -       -      +
     67B  ARG*     4.0     2.1    +      -       -      +
     68B  GLY*     3.2    23.3    +      -       -      -
     71B  PHE*     5.1     0.9    -      -       -      -
    126B  VAL*     1.3    80.8    -      -       -      +
    128B  ASP*     1.3    84.1    +      -       -      +
    129B  LEU      3.4     6.4    -      -       -      +
    135B  THR*     4.3     4.7    -      -       -      +
    136B  MET*     3.4    21.3    -      -       +      +
    154B  VAL      3.2     5.3    +      -       -      +
    155B  SER*     3.1    19.3    -      -       -      -
    156B  LEU*     3.8     2.8    +      -       -      +
   1032B  AMP      3.4    25.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 128 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27B  ARG      4.8     5.9    -      -       -      +
     29B  ILE*     3.6    30.8    -      -       +      +
     67B  ARG*     3.1    37.0    +      -       +      +
     68B  GLY*     4.3     3.4    -      -       -      +
     71B  PHE*     4.0    12.3    -      -       +      -
    127B  ASP*     1.3    88.0    +      -       -      +
    129B  LEU*     1.3    76.5    +      -       -      +
    156B  LEU*     3.0    32.9    +      -       -      +
    157B  VAL*     3.1     8.3    +      -       -      +
   1032B  AMP      2.7    26.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 129 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27B  ARG*     3.6    27.6    -      -       +      +
     29B  ILE*     6.0     0.9    -      -       +      -
    127B  ASP*     3.4     9.7    -      -       -      +
    128B  ASP*     1.3    94.9    +      -       -      +
    130B  LEU*     1.3    82.4    +      -       -      +
    131B  ALA*     3.5     9.5    +      -       +      +
    136B  MET*     4.9     2.0    -      -       -      +
    155B  SER*     3.9     4.7    -      -       -      -
    157B  VAL*     3.2    35.7    -      -       +      +
    159B  LEU*     3.6    17.9    -      -       +      -
   1032B  AMP      3.8    47.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 130 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129B  LEU*     1.3    76.7    -      -       -      +
    131B  ALA*     1.3    65.7    +      -       -      +
    133B  GLY*     3.6    27.8    -      -       -      -
    136B  MET*     3.5    28.0    -      -       +      -
    155B  SER*     3.9     0.6    +      -       -      +
    157B  VAL      2.8    10.1    +      -       -      +
    158B  GLU*     4.4     9.9    -      -       +      -
    159B  LEU      2.9    26.9    +      -       -      +
    164B  GLY*     3.7     3.4    -      -       -      +
    165B  ARG*     3.6    26.2    -      -       -      +
    168B  LEU*     4.0     9.2    -      -       +      -
    173B  PHE*     3.7    43.5    -      -       +      -
   1032B  AMP      4.3     1.8    -      -       -      +
----------------------------------------------------------
 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