Contacts of the helix formed by residues 37 - 51 (chain F) in PDB entry 2ZP8


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 THR 37 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6F  ASP      4.5     2.5    -      -       -      +
      7F  ASP*     2.7    29.8    +      -       -      +
      8F  LEU      3.0    16.6    +      -       -      +
     10F  VAL*     4.0    23.8    -      -       +      -
     36F  LEU*     1.3    76.3    -      -       -      +
     38F  ALA*     1.3    65.1    +      -       -      +
     39F  GLN*     3.4     4.4    +      -       -      -
     40F  GLY      2.8    24.6    +      -       -      -
     41F  TYR*     3.1    13.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 38 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37F  THR*     1.3    73.9    -      -       -      +
     39F  GLN*     1.3    63.2    +      -       -      +
     41F  TYR*     3.3    14.8    +      -       -      +
     42F  THR*     3.0    26.7    +      -       -      -
      1G  MET*     4.3    12.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 39 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3F  ILE*     4.7    16.7    -      -       +      +
      7F  ASP*     3.5    21.1    -      -       +      +
      8F  LEU*     3.7    19.9    -      -       +      +
     37F  THR*     3.1     2.5    +      -       -      +
     38F  ALA*     1.3    77.9    -      -       -      +
     40F  GLY*     1.3    62.0    +      -       -      +
     42F  THR*     3.5     3.3    +      -       -      +
     43F  LEU*     3.3    21.5    +      -       -      +
      1G  MET*     3.1    41.3    -      -       +      +
      2G  VAL*     3.1     7.5    +      -       -      +
      3G  ILE*     3.0    46.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 40 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46E  PHE*     3.4    15.5    -      -       -      -
      8F  LEU*     3.8    24.9    -      -       -      -
     36F  LEU*     4.5     3.6    -      -       -      -
     37F  THR*     2.8    20.3    +      -       -      -
     39F  GLN*     1.3    75.7    -      -       -      +
     41F  TYR*     1.3    64.1    +      -       -      -
     43F  LEU*     3.4     0.9    +      -       -      +
     44F  LEU*     3.0    23.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 41 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35F  ILE*     4.7     6.4    -      -       -      +
     36F  LEU*     3.3    54.9    +      -       +      +
     37F  THR      3.1    18.8    +      -       -      -
     38F  ALA*     3.6     9.4    -      -       -      +
     40F  GLY*     1.3    73.9    -      -       -      +
     42F  THR*     1.3    59.8    +      -       -      +
     44F  LEU*     3.0     9.1    +      -       +      -
     45F  ASP*     2.6    51.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 42 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38F  ALA      3.0    14.2    +      -       -      -
     39F  GLN*     3.5    10.5    -      -       -      +
     41F  TYR*     1.3    75.6    -      -       -      +
     43F  LEU*     1.3    57.6    +      -       -      +
     45F  ASP*     4.3     3.0    -      -       -      +
     46F  PHE*     3.1    27.9    +      -       -      +
      1G  MET*     3.3    20.7    -      -       -      +
      3G  ILE*     3.7    11.2    -      -       +      +
      4G  ALA*     3.6     8.1    -      -       -      -
      5G  THR*     3.4    43.8    +      -       -      +
      8G  LEU*     4.0     6.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 43 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43E  LEU*     3.5    32.8    -      -       +      -
     46E  PHE*     4.2    11.2    -      -       +      -
     47E  ILE*     5.3     3.6    -      -       +      -
      3F  ILE*     4.1     7.6    -      -       +      -
      8F  LEU*     3.8    20.2    -      -       +      -
     39F  GLN*     3.3    12.3    +      -       -      +
     40F  GLY      3.6     7.2    -      -       -      +
     41F  TYR      3.1     0.4    -      -       -      -
     42F  THR*     1.3    77.8    -      -       -      +
     44F  LEU*     1.3    56.4    +      -       -      +
     46F  PHE*     3.1     7.6    +      -       +      +
     47F  ILE*     2.8    58.6    +      -       +      +
      3G  ILE*     6.1     2.7    -      -       +      -
      8G  LEU*     5.0     4.7    -      -       +      -
     43G  LEU*     4.0    28.0    -      -       +      -
     47G  ILE*     6.2     1.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 44 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46E  PHE*     4.3     7.2    -      -       +      -
     47E  ILE*     3.8    25.1    -      -       +      -
     50E  HIS*     3.9    39.9    -      -       +      +
     51E  LEU*     4.4    12.1    -      -       +      +
     53E  LYS*     4.8     7.9    -      -       -      -
     36F  LEU*     3.9    24.2    -      -       +      -
     40F  GLY      3.0    14.4    +      -       -      +
     41F  TYR*     3.0     7.5    +      -       +      +
     43F  LEU*     1.3    78.8    -      -       -      +
     45F  ASP*     1.3    62.9    +      -       -      +
     47F  ILE*     3.4     0.5    +      -       -      +
     48F  GLN*     2.8    40.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 45 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41F  TYR*     2.6    39.5    +      -       -      +
     42F  THR*     4.3     2.5    -      -       -      +
     44F  LEU*     1.3    73.3    -      -       -      +
     46F  PHE*     1.3    66.3    +      -       -      +
     48F  GLN*     3.4     7.0    +      -       -      +
     49F  LYS*     2.9    26.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 46 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42F  THR      3.1    19.6    +      -       -      +
     43F  LEU*     3.1     6.4    +      -       +      +
     45F  ASP*     1.3    81.0    -      -       -      +
     47F  ILE*     1.3    97.8    +      -       +      +
     49F  LYS*     3.2     6.2    +      -       -      +
     50F  HIS*     3.2    45.5    +      +       -      +
      5G  THR*     5.4     6.0    -      -       +      +
      8G  LEU*     3.5    43.5    -      -       +      -
      9G  GLU*     4.0    11.7    -      -       +      -
     36G  LEU*     3.5    17.5    -      -       +      -
     40G  GLY*     3.4    36.6    -      -       -      -
     43G  LEU*     4.7     2.0    -      -       +      -
     44G  LEU*     4.5    11.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 47 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47E  ILE*     4.1    30.3    -      -       +      -
     51E  LEU*     4.4     2.7    -      -       +      -
     43F  LEU*     2.8    41.2    +      -       +      +
     44F  LEU      3.8     2.5    -      -       -      +
     46F  PHE*     1.3    95.2    -      -       +      +
     48F  GLN*     1.3    65.1    +      -       -      +
     49F  LYS      2.9     0.5    +      -       -      -
     50F  HIS      3.0     1.2    +      -       -      -
     51F  LEU*     2.9    55.3    +      -       +      +
     43G  LEU*     4.7     2.0    -      -       +      -
     44G  LEU*     4.5    16.8    -      -       +      +
     47G  ILE*     4.1    21.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 48 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50E  HIS      4.7     2.4    +      -       -      -
     51E  LEU*     3.4    29.0    -      -       +      +
     52E  ASN*     3.1    38.5    +      -       -      +
     53E  LYS      5.3     0.6    -      -       -      +
     44F  LEU*     2.8    29.6    +      -       +      +
     45F  ASP*     3.7     8.5    -      -       -      +
     47F  ILE*     1.3    72.6    -      -       -      +
     49F  LYS*     1.3    62.3    +      -       -      +
     51F  LEU*     4.2     9.7    +      -       -      +
     53F  LYS*     4.6     4.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 49 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45F  ASP      2.9    18.5    +      -       -      +
     46F  PHE*     3.3     5.4    -      -       -      +
     47F  ILE      3.0     0.2    -      -       -      -
     48F  GLN*     1.3    77.3    -      -       -      +
     50F  HIS*     1.3    64.5    +      -       +      +
     53F  LYS*     3.1    21.1    +      -       -      -
      9G  GLU*     3.2    29.1    +      -       -      +
     17G  ARG*     5.8     3.2    -      -       -      +
     32G  LYS*     3.1    31.0    +      -       -      +
     34G  VAL*     3.8    25.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 50 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46F  PHE*     3.2    37.2    +      +       -      +
     47F  ILE      3.0     2.4    +      -       -      -
     49F  LYS*     1.3    80.9    -      -       +      +
     51F  LEU*     1.3    65.8    +      -       -      +
     52F  ASN      3.5     1.6    +      -       -      -
     53F  LYS*     3.3    15.3    +      -       -      +
      9G  GLU*     2.5    26.1    +      -       -      -
     32G  LYS*     3.2    30.4    +      -       +      +
     34G  VAL*     3.4    26.5    -      -       +      -
     36G  LEU*     3.3    25.9    -      -       +      +
     44G  LEU*     3.5    32.6    -      -       +      +
     48G  GLN*     5.1     0.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 51 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51E  LEU*     4.4    18.2    -      -       +      -
     47F  ILE*     2.9    38.6    +      -       +      +
     48F  GLN*     4.6     6.4    -      -       -      +
     49F  LYS      3.5     1.2    -      -       -      -
     50F  HIS*     1.3    77.1    -      -       -      +
     52F  ASN*     1.3   101.0    +      -       +      +
     53F  LYS*     3.3    15.8    -      -       -      -
     44G  LEU*     3.9     9.1    -      -       +      +
     47G  ILE*     4.1    19.3    -      -       +      -
     48G  GLN*     3.4    19.1    -      -       +      +
     51G  LEU*     4.3    15.0    -      -       +      -
----------------------------------------------------------
 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