Contacts of the helix formed by residues 33 - 54 (chain F) in PDB entry 6ACQ


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 LYS 33 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32F  ILE*     1.3    89.7    +      -       +      +
     34F  ASP*     1.3    66.2    +      -       -      +
     35F  GLU*     4.1    27.6    +      -       +      +
     36F  PHE*     3.0    39.0    +      -       +      +
     37F  VAL*     3.3    11.6    +      -       -      +
     73F  VAL*     3.7     5.8    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 34 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33F  LYS*     1.3    70.5    -      -       -      +
     35F  GLU*     1.3    56.2    +      -       -      +
     37F  VAL*     3.3     8.1    +      -       -      +
     38F  ASP*     2.9    44.5    +      -       -      +
     72F  THR*     5.4     1.6    -      -       -      -
     73F  VAL*     3.6    23.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 35 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33F  LYS*     4.1    27.9    +      -       +      +
     34F  ASP*     1.3    79.4    -      -       -      +
     36F  PHE*     1.3    79.3    +      -       +      +
     38F  ASP*     3.6     7.9    +      -       -      +
     39F  ARG*     3.1    25.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 36 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9F  ALA*     3.4     9.9    -      -       +      +
     31F  ASP*     3.6    31.4    -      -       -      +
     32F  ILE*     4.5     9.2    -      -       +      -
     33F  LYS*     3.0    38.3    +      -       +      +
     35F  GLU*     1.3    99.2    -      -       +      +
     37F  VAL*     1.3    68.0    +      -       -      +
     39F  ARG*     3.2    17.6    +      -       -      +
     40F  GLY      2.9    18.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 37 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9F  ALA*     3.8     9.3    -      -       +      +
     29F  LEU*     4.4     5.6    -      -       +      +
     30F  ARG      4.6     0.4    -      -       -      -
     31F  ASP*     3.7    21.3    -      -       +      +
     33F  LYS      3.3     7.4    +      -       -      +
     34F  ASP*     3.3    10.3    +      -       -      +
     36F  PHE*     1.3    77.3    -      -       -      +
     38F  ASP*     1.3    57.1    +      -       -      +
     40F  GLY*     3.0     4.2    +      -       -      -
     41F  LEU*     2.8    47.9    +      -       +      +
     71F  GLY*     3.7    28.0    -      -       -      -
     72F  THR      3.4    28.0    -      -       -      +
     73F  VAL*     4.5     4.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 38 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34F  ASP*     2.9    30.2    +      -       -      +
     35F  GLU*     3.7     7.8    -      -       -      +
     37F  VAL*     1.3    80.5    -      -       -      +
     39F  ARG*     1.3    65.3    +      -       -      +
     41F  LEU*     3.9    12.7    -      -       -      +
     42F  ASP*     2.9    27.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 39 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9F  ALA      5.0     5.5    +      -       -      +
     10F  GLY*     4.4    19.2    -      -       -      -
     11F  THR*     4.7    11.4    +      -       -      +
     35F  GLU*     3.1    15.1    +      -       +      +
     36F  PHE*     3.2    20.2    +      -       +      +
     38F  ASP*     1.3    76.9    -      -       -      +
     40F  GLY*     1.3    56.3    +      -       -      +
     42F  ASP*     3.3     6.1    +      -       -      +
     43F  PHE*     2.9    29.8    +      -       +      +
----------------------------------------------------------
 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
----------------------------------------------------------
      9F  ALA*     3.3    24.2    -      -       -      -
     10F  GLY      5.8     0.2    -      -       -      -
     14F  SER*     3.8    13.3    +      -       -      -
     29F  LEU*     4.7     0.9    -      -       -      -
     36F  PHE      2.9    10.5    +      -       -      -
     37F  VAL      3.4     3.8    -      -       -      -
     39F  ARG*     1.3    74.2    -      -       -      +
     41F  LEU*     1.3    65.9    +      -       -      +
     43F  PHE*     3.0    16.8    +      -       -      +
     44F  ILE*     3.0    17.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 41 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29F  LEU*     3.5    26.7    -      -       +      -
     37F  VAL*     2.8    35.2    +      -       +      +
     38F  ASP*     3.9    14.1    -      -       -      +
     40F  GLY*     1.3    71.6    -      -       -      -
     42F  ASP*     1.3    57.9    +      -       -      +
     44F  ILE*     3.5     8.7    +      -       +      +
     45F  ASN*     3.0    27.5    +      -       -      +
     66F  LEU*     4.3    11.5    -      -       +      +
     69F  ILE*     3.8    24.5    -      -       +      +
     71F  GLY*     4.4    11.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 42 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38F  ASP      2.9    19.1    +      -       -      +
     39F  ARG*     3.6     7.0    -      -       -      +
     41F  LEU*     1.3    75.5    -      -       -      +
     43F  PHE*     1.3    60.0    +      -       -      +
     45F  ASN*     3.5    11.5    +      -       -      +
     46F  LYS*     3.0    30.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 43 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10F  GLY      4.7     0.4    -      -       -      -
     11F  THR*     3.5    42.8    -      -       +      -
     14F  SER*     2.9    21.5    -      -       -      +
     15F  GLY*     4.4     6.7    -      -       -      -
     39F  ARG*     2.9    15.3    +      -       +      +
     40F  GLY*     3.2     9.2    -      -       -      +
     42F  ASP*     1.3    78.7    -      -       -      +
     44F  ILE*     1.3    63.2    +      -       +      +
     46F  LYS*     3.3    10.7    +      -       +      +
     47F  ASN*     3.0    59.1    +      -       -      +
    142F  PRO*     6.4     2.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 44 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14F  SER*     3.2    40.8    -      -       -      +
     17F  ALA*     4.3     6.1    -      -       +      -
     18F  GLN*     3.7    29.8    -      -       +      +
     29F  LEU*     4.4     7.6    -      -       +      -
     40F  GLY      3.3    16.2    -      -       -      +
     41F  LEU*     3.7    10.8    -      -       +      +
     43F  PHE*     1.3    75.8    -      -       +      +
     45F  ASN*     1.3    66.8    +      -       -      +
     47F  ASN*     3.1     3.9    +      -       -      +
     48F  LEU*     3.0    33.5    +      -       +      +
     65F  ILE*     5.7     0.2    -      -       +      -
     66F  LEU*     3.8    19.1    -      -       +      -
     69F  ILE*     4.1    23.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 45 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41F  LEU      3.0    18.3    +      -       -      +
     42F  ASP*     3.5    16.5    +      -       -      +
     44F  ILE*     1.3    76.9    -      -       -      +
     46F  LYS*     1.3    53.7    +      -       -      +
     48F  LEU*     3.4     4.0    +      -       -      +
     49F  SER*     2.7    38.5    +      -       -      -
     62F  LYS*     3.1    23.4    +      -       -      +
     66F  LEU*     3.8    26.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 46 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42F  ASP*     3.0    20.0    +      -       -      +
     43F  PHE*     3.5    10.8    -      -       +      +
     44F  ILE      3.1     0.2    -      -       -      -
     45F  ASN*     1.3    76.5    -      -       -      +
     47F  ASN*     1.3    71.3    +      -       -      +
     49F  SER*     3.2     8.6    +      -       -      -
     50F  LYS*     3.2    51.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 47 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18F  GLN*     3.1    30.2    +      -       -      +
     43F  PHE*     3.0    50.7    +      -       -      +
     44F  ILE      3.1     5.6    +      -       -      +
     46F  LYS*     1.3    80.6    -      -       -      +
     48F  LEU*     1.3    61.8    +      -       -      +
     50F  LYS*     3.2    17.0    +      -       -      +
     51F  LEU*     3.2    24.0    +      -       +      +
    144F  PRO*     4.6     9.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 48 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18F  GLN*     3.4    25.8    -      -       +      +
     22F  ALA*     5.7     2.0    -      -       +      -
     44F  ILE*     3.0    27.6    +      -       +      +
     45F  ASN      3.7     3.4    -      -       -      +
     47F  ASN*     1.3    75.9    -      -       -      +
     49F  SER*     1.3    60.5    +      -       -      +
     51F  LEU*     3.1    18.3    +      -       +      +
     52F  VAL*     2.8    30.7    +      -       -      +
     57F  ILE*     4.0    10.7    -      -       +      +
     62F  LYS*     3.7    39.9    -      -       +      +
     65F  ILE*     4.4    22.0    -      -       +      -
     66F  LEU*     3.8    21.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 49 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45F  ASN*     2.7    19.8    +      -       -      -
     46F  LYS*     3.2     9.1    +      -       -      -
     48F  LEU*     1.3    73.3    -      -       -      +
     50F  LYS*     1.3    61.1    +      -       -      +
     52F  VAL*     3.3     8.6    +      -       -      +
     53F  LYS*     2.8    27.7    +      -       -      +
     59F  GLU*     5.8     0.2    -      -       -      -
     62F  LYS*     2.5    31.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 50 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46F  LYS*     3.2    43.4    +      -       -      +
     47F  ASN*     3.3    15.2    +      -       -      +
     48F  LEU      3.2     0.2    -      -       -      -
     49F  SER*     1.3    74.4    -      -       -      +
     51F  LEU*     1.3    61.5    +      -       +      +
     53F  LYS*     2.8    10.4    +      -       -      -
     54F  LYS*     2.8    46.9    +      -       +      +
----------------------------------------------------------
 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
----------------------------------------------------------
     18F  GLN*     4.4     9.2    -      -       -      +
     47F  ASN*     3.2    13.4    +      -       +      +
     48F  LEU*     3.1    27.1    +      -       +      +
     50F  LYS*     1.3    80.8    -      -       +      +
     52F  VAL*     1.3    61.0    +      -       -      +
     54F  LYS*     3.4     6.8    +      -       +      -
     55F  GLY      3.2     2.9    +      -       -      -
     56F  LYS*     2.9    50.9    +      -       +      +
     57F  ILE*     3.5    22.8    +      -       +      -
    144F  PRO*     6.4     0.7    -      -       +      -
    145F  VAL*     6.3     3.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 52 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48F  LEU      2.8    17.8    +      -       -      +
     49F  SER*     3.6     9.0    -      -       -      +
     51F  LEU*     1.3    76.6    -      -       -      +
     53F  LYS*     1.3    64.7    +      -       -      +
     55F  GLY*     3.1    13.7    +      -       -      -
     57F  ILE*     3.5    25.1    -      -       +      +
     58F  GLU      3.9     1.8    -      -       -      +
     59F  GLU*     3.5    51.1    -      -       +      +
     62F  LYS*     3.9    11.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 53 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49F  SER      2.8    15.2    +      -       -      +
     50F  LYS*     2.8    11.4    +      -       +      +
     52F  VAL*     1.3    79.6    -      -       -      +
     54F  LYS*     1.3    64.7    +      -       +      +
     55F  GLY      3.2     0.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 54 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50F  LYS*     2.8    38.2    +      -       +      +
     51F  LEU*     3.4     9.4    +      -       +      +
     52F  VAL      3.2     0.2    -      -       -      -
     53F  LYS*     1.3    77.6    -      -       +      +
     55F  GLY*     1.3    62.6    +      -       -      +
     56F  LYS*     3.3    19.6    +      -       +      +
----------------------------------------------------------
 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