Contacts of the helix formed by residues 59 - 74 (chain F) in PDB entry 4CQM


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 59 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34F  ARG*     5.9     0.4    -      -       -      +
     56F  ASP*     2.9    51.1    +      -       +      +
     57F  VAL      4.4     0.2    -      -       -      -
     58F  ALA*     1.3    78.3    -      -       +      +
     60F  GLU*     1.3    65.6    +      -       -      +
     61F  HIS      4.8     0.9    -      -       -      +
     62F  ASP*     3.5    32.2    +      -       -      +
     63F  VAL*     3.2    16.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 60 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58F  ALA      3.5     4.4    +      -       -      -
     59F  LYS*     1.3    71.6    -      -       -      +
     61F  HIS*     1.3    78.8    +      -       +      +
     63F  VAL*     3.0    15.2    +      -       +      +
     64F  GLN*     3.1    17.9    +      -       +      +
    113F  LEU*     3.8    32.8    -      -       +      -
    116F  LYS*     4.4    14.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 61 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59F  LYS*     3.5     0.6    -      -       +      +
     60F  GLU*     1.3    93.3    +      -       +      +
     62F  ASP*     1.3    66.8    +      -       -      +
     64F  GLN*     4.5     5.7    -      -       +      +
     65F  ASN*     3.2    28.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 62 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55F  CYS*     3.6    10.8    -      -       -      -
     56F  ASP      3.8    16.3    +      -       -      +
     59F  LYS*     3.4    45.7    +      -       -      +
     60F  GLU      3.1     0.6    -      -       -      -
     61F  HIS*     1.3    83.5    -      -       -      +
     63F  VAL*     1.3    54.0    +      -       -      +
     65F  ASN*     3.9     1.2    -      -       -      +
     66F  THR*     2.2    39.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 63 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8F  PHE*     5.1     2.7    -      -       +      -
     55F  CYS*     3.9     9.6    -      -       -      -
     56F  ASP      3.8     1.3    -      -       -      +
     57F  VAL*     3.6    33.2    -      -       +      +
     59F  LYS      3.2    15.5    -      -       -      +
     60F  GLU*     3.0     8.8    +      -       -      +
     62F  ASP*     1.3    74.9    -      -       -      +
     64F  GLN*     1.3    61.3    +      -       -      +
     66F  THR*     3.1     3.5    +      -       -      -
     67F  PHE*     3.0    35.7    +      -       +      -
    113F  LEU*     3.8    33.7    -      -       +      +
    114F  THR*     4.1    11.4    -      -       -      +
    117F  ALA*     4.0    12.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 64 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60F  GLU*     3.1    17.4    +      -       +      +
     61F  HIS*     4.5     6.7    -      -       +      +
     63F  VAL*     1.3    81.9    -      -       +      +
     65F  ASN*     1.3    57.7    +      -       -      +
     67F  PHE*     3.9     4.1    +      -       -      +
     68F  GLU*     3.4    21.0    +      -       -      +
    117F  ALA*     4.9     0.7    -      -       +      -
    120F  ARG*     4.0    29.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 65 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61F  HIS*     3.2    20.2    +      -       -      +
     62F  ASP*     4.4     2.0    -      -       -      +
     63F  VAL      3.2     0.6    -      -       -      -
     64F  GLN*     1.3    76.8    +      -       -      +
     66F  THR*     1.3    65.1    +      -       -      +
     67F  PHE      3.4     0.2    -      -       -      -
     68F  GLU*     3.0    31.5    +      -       -      +
     69F  GLU*     3.2    36.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 66 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8F  PHE*     4.9     2.9    -      -       +      -
     32F  ILE*     4.4    11.2    -      -       +      -
     53F  PHE*     4.1    14.6    -      -       +      -
     54F  SER      4.0     5.3    +      -       -      +
     55F  CYS*     3.2    30.5    -      -       +      +
     62F  ASP*     2.2    28.2    +      -       -      -
     63F  VAL      3.5     4.7    -      -       -      -
     65F  ASN*     1.3    77.3    -      -       -      +
     67F  PHE*     1.3    58.6    +      -       -      +
     69F  GLU*     2.9    13.7    +      -       -      +
     70F  LEU*     2.8    51.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 67 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6F  ALA*     5.1     3.6    -      -       +      -
      8F  PHE*     3.4    38.1    -      +       -      -
     63F  VAL*     3.0    22.9    +      -       +      +
     64F  GLN*     3.9     6.1    -      -       -      +
     66F  THR*     1.3    77.2    -      -       -      +
     68F  GLU*     1.3    56.8    +      -       -      +
     70F  LEU*     3.5    12.0    +      -       +      +
     71F  GLU*     3.0    28.2    +      -       -      +
     77F  VAL*     4.9    23.1    -      -       +      +
     80F  LEU*     4.2     8.1    -      -       +      -
    114F  THR*     3.7    20.0    -      -       +      -
    117F  ALA*     3.5    33.7    -      -       +      -
    118F  ALA*     3.7    25.6    -      -       +      -
    120F  ARG*     4.7     7.9    -      -       -      +
    121F  THR*     4.9     9.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 68 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64F  GLN      3.4    14.7    +      -       -      +
     65F  ASN*     3.0    36.4    +      -       -      +
     66F  THR      3.1     0.8    -      -       -      -
     67F  PHE*     1.3    78.9    -      -       -      +
     69F  GLU*     1.3    68.3    +      -       +      +
     71F  GLU*     3.4    16.9    -      -       -      +
     72F  LYS*     3.4    46.0    +      -       -      +
    120F  ARG*     5.3     5.4    -      -       -      +
----------------------------------------------------------
 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
----------------------------------------------------------
     53F  PHE*     4.5    14.9    -      -       +      +
     65F  ASN*     3.2    22.4    +      -       -      +
     66F  THR*     2.9    13.3    +      -       -      +
     68F  GLU*     1.3    82.0    -      -       +      +
     70F  LEU*     1.3    65.2    +      -       -      +
     71F  GLU      3.2     1.6    -      -       -      -
     72F  LYS*     3.5    11.8    +      -       +      +
     73F  HIS*     3.4    33.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 70 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6F  ALA*     3.9    19.1    -      -       +      -
      8F  PHE*     5.4     1.1    -      -       +      -
     30F  ALA*     4.0     6.3    -      -       +      -
     32F  ILE*     3.7    23.1    -      -       +      -
     53F  PHE*     3.4    44.4    -      -       +      -
     66F  THR*     2.8    39.8    +      -       +      +
     67F  PHE*     3.7    17.0    -      -       +      +
     69F  GLU*     1.3    75.6    -      -       -      +
     71F  GLU*     1.3    57.8    +      -       -      +
     74F  LEU*     2.7    45.9    +      -       +      +
     75F  GLY      3.4     5.2    +      -       -      -
     77F  VAL*     4.8    12.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 71 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67F  PHE      3.0    16.6    +      -       -      +
     68F  GLU*     3.4    18.2    -      -       -      +
     69F  GLU      3.2     0.2    -      -       -      -
     70F  LEU*     1.3    78.2    -      -       -      +
     72F  LYS*     1.3    64.3    +      -       +      +
     75F  GLY*     3.2    34.7    +      -       -      +
     77F  VAL*     5.6     0.9    -      -       -      +
    120F  ARG*     5.2     5.9    +      -       -      -
    121F  THR*     5.4     8.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 72 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68F  GLU*     3.4    39.6    +      -       -      +
     69F  GLU*     3.5    12.9    +      -       +      +
     70F  LEU      3.3     0.2    -      -       -      -
     71F  GLU*     1.3    80.4    -      -       +      +
     73F  HIS*     1.3    74.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 73 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28F  ARG*     3.9    13.5    +      -       -      -
     51F  LEU*     4.2    27.7    -      -       +      +
     53F  PHE*     3.5    33.8    -      +       +      -
     69F  GLU*     3.4    18.1    +      -       +      +
     70F  LEU      3.3     2.1    +      -       -      +
     72F  LYS*     1.3    93.4    +      -       +      +
     74F  LEU*     1.3    67.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 74 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1F  MET      5.4     1.2    -      -       -      +
      4F  VAL*     3.7    39.4    -      -       +      +
     28F  ARG*     3.6    43.4    +      -       +      +
     29F  LEU      5.1     4.3    -      -       -      +
     30F  ALA*     3.8    29.6    -      -       +      -
     49F  ASP      4.5     0.9    -      -       -      +
     51F  LEU*     3.6    24.0    -      -       +      -
     53F  PHE*     4.0    17.7    -      -       +      -
     70F  LEU*     2.7    26.2    +      -       +      +
     73F  HIS*     1.3    76.4    -      -       -      +
     75F  GLY*     1.3    58.1    +      -       -      +
     76F  ARG      4.3     0.2    +      -       -      -
     77F  VAL*     5.2     1.1    -      -       +      -
----------------------------------------------------------
 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