Contacts of the helix formed by residues 72 - 90 (chain f) in PDB entry 6QY3


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 72 (chain f).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69f  ASP      5.5     2.7    -      -       -      -
     70f  ILE      3.6     5.4    +      -       -      -
     71f  ASN*     1.3    74.4    -      -       -      +
     73f  SER*     1.3    62.0    +      -       -      +
     74f  GLN*     3.3     7.2    -      -       -      -
     75f  VAL*     3.8    14.2    -      -       -      +
     76f  LEU*     2.8    31.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 73 (chain f). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72f  THR*     1.3    74.0    -      -       -      +
     74f  GLN*     1.3    58.1    +      -       -      +
     76f  LEU*     3.9     3.4    -      -       -      +
     77f  LYS*     2.9    31.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 74 (chain f). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72f  THR*     3.3     3.8    -      -       -      -
     73f  SER*     1.3    76.4    -      -       -      +
     75f  VAL*     1.3    61.0    +      -       -      +
     77f  LYS*     3.8     4.8    -      -       -      +
     78f  LEU*     2.9    33.1    +      -       -      +
    157f  TYR      5.9     1.1    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 75 (chain f). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70f  ILE      4.1    20.2    -      -       -      +
     71f  ASN*     5.3     0.2    -      -       -      -
     72f  THR*     3.4    16.4    +      -       -      +
     73f  SER      3.4     0.4    -      -       -      -
     74f  GLN*     1.3    79.2    -      -       -      +
     76f  LEU*     1.3    57.2    +      -       -      +
     78f  LEU*     3.9     3.7    -      -       -      +
     79f  LEU*     2.9    30.1    +      -       -      +
    154f  ILE*     5.5     8.3    -      -       +      +
    157f  TYR*     5.0    17.3    -      -       +      +
    158f  LEU*     6.2     0.7    -      -       -      +
----------------------------------------------------------
 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
----------------------------------------------------------
     71f  ASN*     5.9     3.4    -      -       +      -
     72f  THR      2.8    19.2    +      -       -      +
     73f  SER*     4.2     2.9    -      -       -      +
     75f  VAL*     1.3    74.3    -      -       -      +
     77f  LYS*     1.3    61.7    +      -       -      +
     79f  LEU*     3.7     5.8    -      -       -      +
     80f  HIS*     2.9    29.8    +      -       -      +
    135f  VAL      4.9    13.1    -      -       -      +
    136f  ARG*     5.8     5.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 77 (chain f). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73f  SER      2.9    20.9    +      -       -      +
     74f  GLN*     3.8     5.8    -      -       -      +
     76f  LEU*     1.3    77.2    -      -       -      +
     78f  LEU*     1.3    58.1    +      -       -      +
     80f  HIS*     3.2     7.3    +      -       -      +
     81f  THR*     2.9    27.6    +      -       -      -
----------------------------------------------------------
 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
----------------------------------------------------------
     74f  GLN      2.9    17.6    +      -       -      +
     75f  VAL      4.2     2.5    -      -       -      +
     77f  LYS*     1.3    76.8    -      -       -      +
     79f  LEU*     1.3    57.8    +      -       -      +
     81f  THR*     3.4     9.1    +      -       -      -
     82f  ASP*     2.9    27.2    +      -       -      +
    157f  TYR*     4.6    23.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 79 (chain f). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75f  VAL      2.9    21.2    +      -       -      +
     76f  LEU*     3.7     7.6    -      -       -      +
     78f  LEU*     1.3    74.8    -      -       -      +
     80f  HIS*     1.3    58.4    +      -       -      +
     82f  ASP*     3.1     7.2    +      -       -      +
     83f  ILE*     2.9    28.5    +      -       -      +
    157f  TYR*     5.7     2.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 80 (chain f). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76f  LEU      2.9    18.2    +      -       -      +
     77f  LYS*     3.2     6.9    +      -       -      +
     79f  LEU*     1.3    75.5    -      -       -      +
     81f  THR*     1.3    57.4    +      -       -      +
     83f  ILE*     3.3     7.2    +      -       -      +
     84f  VAL*     2.9    28.6    +      -       -      +
    127f  LEU*     5.7     9.7    -      -       +      +
    130f  ILE*     4.8    19.7    -      -       +      +
    131f  LYS*     5.9     1.3    -      -       -      +
    135f  VAL*     6.4     3.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 81 (chain f). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77f  LYS      2.9    13.8    +      -       -      -
     78f  LEU*     3.6    12.1    -      -       -      -
     79f  LEU      3.2     0.2    -      -       -      -
     80f  HIS*     1.3    77.7    -      -       -      +
     82f  ASP*     1.3    56.4    +      -       -      +
     84f  VAL*     3.3     7.6    +      -       -      +
     85f  SER*     2.9    27.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 82 (chain f). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78f  LEU      2.9    14.7    +      -       -      +
     79f  LEU*     3.1    11.6    +      -       -      +
     81f  THR*     1.3    77.2    -      -       -      +
     83f  ILE*     1.3    57.2    +      -       -      +
     85f  SER*     3.2     8.4    +      -       -      -
     86f  GLN*     2.9    26.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 83 (chain f). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79f  LEU      2.9    15.8    +      -       -      +
     80f  HIS*     3.7     8.1    -      -       -      +
     82f  ASP*     1.3    76.5    -      -       -      +
     84f  VAL*     1.3    56.9    +      -       -      +
     86f  GLN*     3.2     8.4    +      -       -      +
     87f  LEU*     2.9    28.9    +      -       -      +
    130f  ILE*     5.9     5.6    -      -       +      -
    111g  GLU*     5.7     6.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 84 (chain f). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80f  HIS      2.9    18.0    +      -       -      +
     81f  THR*     3.6     8.5    -      -       -      +
     82f  ASP      3.3     0.2    -      -       -      -
     83f  ILE*     1.3    76.0    -      -       -      +
     85f  SER*     1.3    57.7    +      -       -      +
     87f  LEU*     3.5     6.9    +      -       -      +
     88f  ASN*     2.9    28.6    +      -       -      +
    126f  LEU*     5.4    13.5    -      -       +      -
    127f  LEU*     5.5    11.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 85 (chain f). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81f  THR      2.9    13.6    +      -       -      -
     82f  ASP*     3.5    11.0    -      -       -      -
     84f  VAL*     1.3    74.6    -      -       -      +
     86f  GLN*     1.3    58.9    +      -       -      +
     88f  ASN*     3.1     7.5    +      -       -      +
     89f  ASP*     2.9    29.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 86 (chain f). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82f  ASP      2.9    13.3    +      -       -      +
     83f  ILE*     3.2    11.9    +      -       -      +
     85f  SER*     1.3    77.6    -      -       -      +
     87f  LEU*     1.3    61.2    +      -       -      +
     89f  ASP*     3.4    18.1    +      -       -      +
     90f  LYS*     4.0     7.3    +      -       -      +
    111g  GLU*     5.7     9.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 87 (chain f). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83f  ILE      2.9    16.2    +      -       -      +
     84f  VAL*     3.8     7.2    -      -       -      +
     86f  GLN*     1.3    76.8    -      -       -      +
     88f  ASN*     1.3    60.2    +      -       -      +
     89f  ASP      3.6     0.2    +      -       -      -
     90f  LYS*     3.3    20.7    +      -       -      +
     93f  VAL*     5.0     6.2    -      -       +      +
     94f  ARG*     3.8    14.6    +      -       +      +
    126f  LEU*     6.2     4.0    -      -       +      -
    111g  GLU*     5.7     8.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 88 (chain f). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84f  VAL      2.9    17.8    +      -       -      +
     85f  SER*     3.1     8.5    +      -       -      +
     87f  LEU*     1.3    74.6    -      -       -      +
     89f  ASP*     1.3    63.2    +      -       -      +
     90f  LYS      3.2     5.9    +      -       -      +
     91f  PRO*     4.7     1.9    -      -       -      +
     94f  ARG*     5.0     5.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 89 (chain f). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85f  SER      2.9    14.4    +      -       -      +
     86f  GLN*     3.7    10.5    -      -       -      +
     87f  LEU      3.3     1.0    -      -       -      -
     88f  ASN*     1.3    77.1    -      -       -      +
     90f  LYS*     1.3    57.9    +      -       +      +
     91f  PRO      3.9     2.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 90 (chain f). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86f  GLN      4.0     5.5    +      -       -      +
     87f  LEU*     3.3    18.5    +      -       -      +
     88f  ASN      3.2     2.7    -      -       -      +
     89f  ASP*     1.3    78.4    -      -       +      +
     91f  PRO*     1.3    64.5    -      -       -      +
     92f  GLU*     3.4     1.3    -      -       +      +
     93f  VAL*     4.3    19.3    -      -       +      +
     94f  ARG*     3.3    11.1    +      -       -      +
----------------------------------------------------------
 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