Contacts of the strand formed by residues 21 - 32 (chain F) in PDB entry 6NQN


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 HIS 21 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17F  ALA*     3.3     3.9    -      -       -      -
     18F  VAL*     3.0    30.8    +      -       +      +
     19F  ASN*     4.0    15.4    +      -       +      -
     20F  GLY*     1.3    79.5    +      -       -      +
     22F  PRO*     1.3    72.5    -      -       -      +
     23F  PHE*     3.7     5.7    -      -       -      -
     51F  PRO*     5.0    22.2    -      -       +      +
     52F  PHE*     5.1     2.0    -      -       +      -
    132F  MET*     6.0     4.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 22 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16F  GLY      3.1    11.9    -      -       -      +
     17F  ALA*     3.8     6.0    -      -       +      -
     20F  GLY      3.1    12.5    -      -       -      +
     21F  HIS*     1.3    91.9    -      -       +      +
     23F  PHE*     1.3    62.4    +      -       -      +
     46F  GLU*     6.0     0.2    -      -       -      -
     47F  GLY*     3.7    14.7    -      -       -      +
    119F  ARG*     6.2     0.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 23 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14F  MET*     3.6    27.8    -      -       +      -
     15F  GLU*     3.8     1.0    -      -       -      +
     16F  GLY*     2.9    39.0    +      -       -      +
     17F  ALA*     3.3    27.1    -      -       -      -
     18F  VAL*     4.0     2.5    -      -       +      -
     21F  HIS      3.7    11.4    -      -       -      +
     22F  PRO*     1.3    75.2    -      -       -      +
     24F  ALA*     1.3    65.2    +      -       -      +
     25F  ILE*     3.9    21.8    -      -       +      -
     46F  GLU*     3.3    22.0    -      -       -      +
     47F  GLY*     4.2     2.0    -      -       -      +
     50F  LEU*     3.7    20.4    -      -       +      -
     52F  PHE*     3.7    18.4    -      +       -      -
     57F  LEU*     3.7    24.2    -      -       +      -
    120F  PHE*     3.9     9.9    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 24 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13F  ARG*     3.6    31.0    -      -       -      +
     14F  MET      3.3    10.3    -      -       -      +
     15F  GLU*     4.4     5.2    -      -       +      -
     23F  PHE*     1.3    77.3    -      -       -      +
     25F  ILE*     1.3    60.9    +      -       -      +
     44F  VAL*     3.6     0.3    -      -       -      -
     45F  LYS*     2.8    31.1    +      -       +      -
     46F  GLU*     3.0    33.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 25 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12F  LEU*     4.2     1.0    -      -       -      +
     13F  ARG*     3.4     2.5    -      -       -      +
     14F  MET*     2.7    40.5    +      -       +      +
     23F  PHE*     3.9    18.6    -      -       +      -
     24F  ALA*     1.3    80.3    -      -       -      +
     26F  GLU*     1.3    67.1    +      -       -      +
     42F  LEU*     3.4    30.7    -      -       +      -
     43F  LYS      3.5    13.0    -      -       -      +
     44F  VAL*     3.6    26.9    -      -       +      -
     45F  LYS      4.3     0.2    -      -       -      +
     50F  LEU*     4.0     2.9    -      -       +      -
     54F  TYR*     3.9    10.5    -      -       -      +
     57F  LEU*     3.7    30.5    -      -       +      -
     61F  PHE*     3.5    12.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 26 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11F  LYS*     5.5     5.7    +      -       -      -
     12F  LEU*     3.4    15.0    -      -       -      +
     13F  ARG*     2.9    41.5    +      -       +      +
     25F  ILE*     1.3    80.7    -      -       -      +
     27F  GLY*     1.3    57.8    +      -       -      +
     41F  ASP      4.0     0.3    -      -       -      +
     42F  LEU*     3.4     1.9    -      -       -      -
     43F  LYS*     2.7    39.5    +      -       -      +
     45F  LYS*     3.4    32.5    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 27 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10F  ILE*     5.2     0.4    -      -       -      -
     11F  LYS*     3.5     2.8    -      -       -      +
     12F  LEU*     3.0    49.5    +      -       -      +
     26F  GLU*     1.3    76.1    -      -       -      +
     28F  VAL*     1.3    70.6    +      -       -      +
     40F  MET*     5.6     1.1    -      -       -      -
     41F  ASP      3.2    11.0    -      -       -      -
     42F  LEU*     4.1     6.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 28 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10F  ILE*     3.2    10.5    -      -       -      +
     11F  LYS*     4.5    21.1    -      -       +      -
     27F  GLY*     1.3    80.4    -      -       -      +
     29F  GLY*     1.3    59.2    +      -       -      +
     40F  MET*     3.3     4.4    -      -       -      +
     41F  ASP*     2.8    41.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 29 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9F  LYS*     3.4     9.2    -      -       -      +
     10F  ILE*     2.8    38.9    +      -       -      +
     28F  VAL*     1.3    77.5    -      -       -      +
     30F  LEU*     1.3    66.8    +      -       -      +
     39F  SER      3.2    14.1    -      -       -      -
     40F  MET*     3.7     5.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 30 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7F  ASP*     6.5     0.9    -      -       +      -
      8F  MET      3.2    13.2    -      -       -      +
      9F  LYS*     4.1     8.5    -      -       +      +
     10F  ILE*     4.3     7.9    -      -       -      +
     29F  GLY*     1.3    79.5    -      -       -      +
     31F  GLY*     1.3    60.0    +      -       -      +
     38F  GLN*     3.4     1.7    -      -       -      +
     39F  SER*     2.9    48.2    +      -       -      +
     40F  MET*     6.0     0.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 31 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7F  ASP*     3.7     5.0    -      -       -      +
      8F  MET      2.9    32.2    +      -       -      +
     30F  LEU*     1.3    79.1    -      -       -      +
     32F  LYS*     1.3    66.7    +      -       -      +
     33F  PRO*     3.7     1.0    -      -       -      +
     37F  LYS      3.2    12.6    -      -       -      -
     38F  GLN*     3.8     2.5    -      -       -      -
     68F  PHE*     3.5    16.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 32 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6F  PRO*     3.3    12.9    -      -       -      +
      7F  ASP*     2.5    39.7    +      -       -      +
     31F  GLY*     1.3    74.3    -      -       -      -
     33F  PRO*     1.3    69.0    -      -       -      +
     34F  PHE      3.2     2.2    -      -       -      +
     35F  GLU*     3.1    49.1    +      -       +      +
     36F  GLY      3.1     9.7    +      -       -      -
     37F  LYS*     2.8    20.2    +      -       +      +
     68F  PHE*     3.7     0.6    -      -       -      -
----------------------------------------------------------
 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