Contacts of the helix formed by residues 133 - 146 (chain D) in PDB entry 2ZNZ


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 133 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86D  SER*     4.4     3.4    -      -       -      +
     87D  MET*     4.2     9.6    -      -       -      -
    131D  THR*     2.8    21.0    +      -       -      -
    132D  LYS*     1.3    89.3    -      -       -      +
    134D  SER*     1.3    62.8    +      -       -      +
    135D  GLU*     3.1    13.8    +      -       -      +
    136D  GLU*     2.7    36.8    +      -       -      +
    137D  LEU*     3.2     8.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 134 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87D  MET*     3.8    24.0    -      -       -      +
    133D  ASN*     1.3    75.0    -      -       -      +
    135D  GLU*     1.3    60.1    +      -       -      +
    137D  LEU*     3.3     7.4    +      -       -      +
    138D  ASN*     3.0    26.2    +      -       -      +
    157D  ILE*     5.0     6.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 135 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    133D  ASN*     3.1    12.6    +      -       -      +
    134D  SER*     1.3    76.9    -      -       -      +
    136D  GLU*     1.3    63.7    +      -       -      +
    138D  ASN*     3.4     9.2    +      -       +      +
    139D  ASN*     3.0    39.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 136 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85D  TYR*     4.3     6.8    -      -       -      -
    112D  GLU*     4.4     6.1    -      -       -      +
    131D  THR*     3.5    14.0    -      -       -      +
    132D  LYS*     3.3    40.8    +      -       -      +
    133D  ASN*     2.7    26.2    +      -       -      +
    135D  GLU*     1.3    72.0    -      -       -      +
    137D  LEU*     1.3    62.3    +      -       -      +
    139D  ASN*     3.4    13.6    +      -       +      +
    140D  PHE*     3.1    51.2    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 137 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87D  MET*     3.8    27.8    -      -       +      -
     89D  ALA*     4.3     5.8    -      -       +      -
     91D  ILE*     4.6     5.4    -      -       +      -
    129D  ILE*     3.9    30.7    -      -       +      -
    131D  THR*     3.7    22.8    +      -       +      +
    133D  ASN      3.2     8.6    +      -       -      +
    134D  SER*     3.4    11.2    -      -       -      +
    136D  GLU*     1.3    73.8    -      -       -      +
    138D  ASN*     1.3    60.3    +      -       -      +
    140D  PHE*     3.1     3.7    +      -       -      -
    141D  LEU*     2.9    48.2    +      -       +      +
    155D  THR*     4.2     9.9    -      -       +      -
    157D  ILE*     4.0    22.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 138 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134D  SER      3.0    13.7    +      -       -      +
    135D  GLU*     3.6    11.2    -      -       +      +
    137D  LEU*     1.3    74.3    -      -       -      +
    139D  ASN*     1.3    59.7    +      -       -      +
    141D  LEU*     3.2     8.5    +      -       -      +
    142D  ASP*     2.9    36.3    +      -       -      -
    172D  LYS*     2.8    38.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 139 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135D  GLU*     3.0    32.4    +      -       -      +
    136D  GLU*     3.4    17.5    -      -       +      +
    137D  LEU      3.3     0.2    -      -       -      -
    138D  ASN*     1.3    77.6    +      -       -      +
    140D  PHE*     1.3    59.1    +      -       +      +
    142D  ASP*     3.4    14.4    -      -       -      +
    143D  LEU*     3.2    32.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 140 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91D  ILE*     5.9     0.2    -      -       +      -
    110D  TYR*     4.1    26.2    -      +       +      -
    112D  GLU*     3.3    46.7    -      -       +      -
    113D  ILE*     5.8     1.6    -      -       +      -
    129D  ILE*     3.8    24.5    -      -       +      -
    131D  THR*     3.7    12.8    -      -       +      -
    136D  GLU*     3.1    47.6    +      -       +      -
    137D  LEU*     3.7     5.8    -      -       +      +
    139D  ASN*     1.3    76.1    -      -       +      +
    141D  LEU*     1.3    60.5    +      -       -      +
    143D  LEU*     3.2    20.7    +      -       +      +
    144D  ILE*     2.8    38.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 141 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91D  ILE*     3.8    28.3    -      -       +      -
    137D  LEU*     2.9    32.0    +      -       +      +
    138D  ASN*     3.2    13.0    +      -       -      +
    140D  PHE*     1.3    72.3    -      -       -      +
    142D  ASP*     1.3    62.3    +      -       -      +
    144D  ILE*     3.5     4.7    +      -       +      +
    145D  GLY*     3.0    25.6    +      -       -      -
    153D  THR*     3.9    13.7    +      -       +      +
    155D  THR*     3.2    31.6    -      -       +      +
    172D  LYS*     3.6    43.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 142 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138D  ASN*     2.9    23.2    +      -       -      +
    139D  ASN*     3.4    18.1    -      -       -      +
    141D  LEU*     1.3    76.3    -      -       -      +
    143D  LEU*     1.3    63.0    +      -       +      +
    145D  GLY*     3.4     3.0    +      -       -      -
    146D  SER*     3.3    26.3    +      -       -      -
    172D  LYS*     2.8    23.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 143 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110D  TYR*     4.4    28.7    +      -       +      +
    139D  ASN*     3.2    18.6    +      -       +      +
    140D  PHE*     3.2    32.5    +      -       +      +
    142D  ASP*     1.3    79.6    -      -       +      +
    144D  ILE*     1.3    60.9    +      -       +      +
    146D  SER*     3.4    14.6    +      -       -      -
    147D  ILE*     3.5    16.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 144 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91D  ILE*     3.6    31.9    -      -       +      -
     93D  VAL*     4.7     7.6    -      -       +      -
    107D  LEU*     3.8    26.7    -      -       +      -
    110D  TYR*     5.6     3.6    -      -       +      -
    113D  ILE*     4.2    19.7    -      -       +      -
    127D  VAL*     5.1     1.6    -      -       +      -
    129D  ILE*     4.7     3.8    -      -       +      -
    140D  PHE*     2.8    29.5    +      -       +      +
    141D  LEU*     3.9     7.0    -      -       +      +
    143D  LEU*     1.3    71.6    -      -       +      +
    145D  GLY*     1.3    64.9    +      -       -      +
    147D  ILE*     3.2    18.9    +      -       +      +
    150D  VAL*     3.4    23.3    -      -       +      +
    153D  THR*     3.7    24.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 145 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141D  LEU      3.0    16.9    +      -       -      -
    142D  ASP*     3.8     2.9    -      -       -      -
    143D  LEU      3.3     0.2    -      -       -      -
    144D  ILE*     1.3    79.2    -      -       -      +
    146D  SER*     1.3    58.9    +      -       -      +
    147D  ILE      3.5     6.8    +      -       -      +
    150D  VAL*     3.9    22.2    -      -       -      +
    152D  GLY*     6.4     0.2    -      -       -      -
    153D  THR*     5.1     2.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 146 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    142D  ASP      3.3    15.4    +      -       -      -
    143D  LEU*     3.4     9.2    +      -       -      -
    144D  ILE      3.2     0.8    -      -       -      -
    145D  GLY*     1.3    73.7    -      -       -      +
    147D  ILE*     1.3    64.8    +      -       -      +
    148D  PRO*     3.4     8.3    -      -       -      +
----------------------------------------------------------
 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