Contacts of the helix formed by residues 67 - 81 (chain F) in PDB entry 1NZB


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 GLU 67 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52F  TRP*     5.3     0.2    -      -       -      -
     62F  LYS*     4.6    22.6    +      -       +      +
     65F  PRO      3.5     3.7    +      -       -      +
     66F  ALA*     1.3    71.3    -      -       -      +
     68F  PRO*     1.3    81.6    -      -       +      +
     69F  GLU*     4.4    11.6    -      -       +      +
     70F  ASP*     2.9    37.4    +      -       -      +
     71F  VAL*     3.2     9.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 68 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66F  ALA      3.7     7.8    -      -       -      +
     67F  GLU*     1.3    94.8    -      -       +      +
     69F  GLU*     1.3    66.3    +      -       +      +
     71F  VAL*     3.1     4.6    +      -       +      +
     72F  ARG*     3.0    21.2    +      -       -      +
    107F  PRO*     5.0     6.1    -      -       +      +
    110F  SER*     3.8    33.0    -      -       -      +
    112F  ALA*     4.7     7.6    -      -       +      -
    113F  VAL*     3.4    21.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 69 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25E  LYS*     4.7     9.9    +      -       -      +
     29E  ASP*     3.9    10.4    -      -       -      +
     32E  ARG*     3.2    30.0    +      -       -      -
     61F  ARG*     5.9     0.2    -      -       -      -
     67F  GLU*     3.2     8.1    +      -       +      +
     68F  PRO*     1.3    82.7    -      -       +      +
     70F  ASP*     1.3    64.7    +      -       -      +
     72F  ARG*     3.5    11.6    +      -       -      +
     73F  ASP*     3.1    34.4    +      -       -      +
    112F  ALA*     4.0    14.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 70 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52F  TRP*     3.9    17.9    -      -       +      -
     55F  TRP*     4.3     3.0    +      -       -      +
     61F  ARG*     2.5    55.9    +      -       +      +
     62F  LYS*     4.5     6.3    +      -       -      +
     67F  GLU*     2.9    28.0    +      -       +      +
     69F  GLU*     1.3    84.0    -      -       -      +
     71F  VAL*     1.3    55.8    +      -       -      +
     72F  ARG      3.1     0.2    -      -       -      -
     73F  ASP*     3.1     7.8    +      -       -      +
     74F  TYR*     2.7    35.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 71 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52F  TRP*     4.0    15.0    -      -       +      -
     66F  ALA*     3.6    31.0    -      -       +      -
     67F  GLU      3.2     7.1    +      -       -      +
     68F  PRO      3.1     6.8    +      -       -      +
     70F  ASP*     1.3    76.8    -      -       -      +
     72F  ARG*     1.3    58.1    +      -       -      +
     74F  TYR*     3.2     4.2    +      -       +      +
     75F  LEU*     2.8    35.8    +      -       +      +
     92F  LEU*     4.2    11.2    -      -       +      -
     95F  LEU*     5.2    10.1    -      -       +      -
    107F  PRO*     3.9    19.5    -      -       +      -
    113F  VAL*     3.7    28.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 72 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32E  ARG*     2.9    57.3    -      -       -      +
     33E  ASP*     2.9    25.1    +      -       -      -
     68F  PRO      3.0    12.0    +      -       -      +
     69F  GLU*     3.7    14.0    +      -       -      +
     71F  VAL*     1.3    76.4    -      -       -      +
     73F  ASP*     1.3    71.6    +      -       -      +
     75F  LEU*     3.3     2.9    +      -       -      +
     76F  LEU*     3.1    46.7    +      -       -      +
    112F  ALA*     3.6    17.0    -      -       +      -
    113F  VAL*     4.2     6.2    -      -       -      +
    116F  VAL*     3.3    33.7    -      -       +      +
    119F  ARG*     4.0     4.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 73 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55F  TRP*     3.7    22.3    -      -       +      -
     61F  ARG*     3.9    19.7    +      -       -      +
     69F  GLU*     3.1    22.6    +      -       -      +
     70F  ASP      3.1     9.5    +      -       -      +
     72F  ARG*     1.3    83.9    +      -       -      +
     74F  TYR*     1.3    59.4    +      -       -      +
     76F  LEU*     3.2    11.8    +      -       -      +
     77F  TYR*     3.0    27.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 74 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48F  VAL      4.2     1.0    +      -       -      -
     51F  SER*     2.5    40.3    +      -       -      -
     52F  TRP*     3.2    49.5    +      +       +      -
     55F  TRP*     3.8    29.5    -      +       +      +
     70F  ASP      2.7    11.9    +      -       -      +
     71F  VAL*     3.5     6.1    -      -       +      +
     73F  ASP*     1.3    72.0    -      -       -      +
     75F  LEU*     1.3    73.4    +      -       +      +
     77F  TYR*     3.4    18.6    +      +       -      +
     78F  LEU*     3.2    32.3    +      -       +      +
     91F  HIS*     3.3    35.1    +      -       +      -
     95F  LEU*     4.7    10.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 75 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71F  VAL*     2.8    26.6    +      -       +      +
     72F  ARG*     3.8     6.3    -      -       -      +
     73F  ASP      3.2     0.2    -      -       -      -
     74F  TYR*     1.3    89.1    -      -       +      +
     76F  LEU*     1.3    63.0    +      -       -      +
     78F  LEU*     3.3    13.3    +      -       +      +
     79F  GLN      3.1    16.8    +      -       -      -
     88F  ILE*     3.8    19.3    -      -       +      +
     92F  LEU*     3.9    50.5    -      -       +      +
    113F  VAL*     4.4     7.2    -      -       +      -
    116F  VAL*     4.5    12.3    -      -       +      -
    117F  MET*     4.1    12.6    -      -       +      -
    120F  ILE*     3.4    22.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 76 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72F  ARG*     3.1    48.2    +      -       -      +
     73F  ASP*     3.6    12.3    -      -       -      +
     75F  LEU*     1.3    74.5    -      -       -      +
     77F  TYR*     1.3    66.6    +      -       -      +
     79F  GLN*     3.2    28.6    +      -       -      +
     80F  ALA*     3.0    22.0    +      -       -      +
    116F  VAL*     3.9     8.7    -      -       +      -
    119F  ARG*     4.3    20.6    -      -       -      +
    120F  ILE*     4.1    12.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 77 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51F  SER*     5.8     2.5    -      -       -      -
     55F  TRP*     3.1    57.4    -      +       +      -
     73F  ASP      3.0     7.8    +      -       -      +
     74F  TYR*     3.6    22.4    -      +       -      +
     75F  LEU      3.3     0.2    -      -       -      -
     76F  LEU*     1.3    77.3    -      -       -      +
     78F  LEU*     1.3    64.3    +      -       +      +
     80F  ALA*     3.0    11.9    +      -       +      +
     81F  ARG*     2.9    60.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 78 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51F  SER*     5.2     2.0    -      -       -      +
     74F  TYR*     3.2    40.1    +      -       +      +
     75F  LEU*     3.5    10.3    -      -       +      +
     76F  LEU      3.2     0.4    -      -       -      -
     77F  TYR*     1.3    84.4    -      -       +      +
     79F  GLN*     1.3    64.0    +      -       -      +
     81F  ARG*     3.1    29.1    +      -       -      +
     82F  GLY      3.5     3.5    +      -       -      -
     83F  LEU*     3.3    32.3    +      -       +      +
     88F  ILE*     3.9    28.0    -      -       +      -
     91F  HIS*     3.5    44.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 79 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75F  LEU      3.1    10.0    +      -       -      +
     76F  LEU*     3.2    29.6    +      -       -      +
     78F  LEU*     1.3    76.8    -      -       -      +
     80F  ALA*     1.3    59.8    +      -       -      +
     82F  GLY*     2.9    22.5    +      -       -      -
     83F  LEU      4.1     2.2    +      -       -      +
     88F  ILE*     3.9    10.2    -      -       -      +
    119F  ARG*     5.2     0.9    +      -       -      -
    120F  ILE*     3.3    29.7    -      -       +      +
    123F  GLU*     3.1    27.3    +      -       -      +
    124F  ASN*     2.5    36.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 80 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76F  LEU      3.0    11.7    +      -       -      +
     77F  TYR*     3.2    15.7    -      -       +      +
     79F  GLN*     1.3    73.7    -      -       -      +
     81F  ARG*     1.3    56.3    +      -       -      +
     82F  GLY*     2.9    10.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 81 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51F  SER*     6.0     0.4    +      -       -      -
     77F  TYR*     2.9    57.4    +      -       +      +
     78F  LEU*     3.1    19.9    +      -       -      +
     80F  ALA*     1.3    74.4    -      -       -      +
     82F  GLY*     1.3    61.0    +      -       -      +
     83F  LEU*     3.6    22.0    +      -       +      +
    111G    T      4.4     0.4    +      -       -      -
    112G    A      2.6    40.0    +      -       -      -
----------------------------------------------------------
 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