Contacts of the helix formed by residues 55 - 67 (chain F) in PDB entry 5DNF


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 55 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16F  ALA      6.0     1.3    -      -       -      -
     52F  ASN*     3.2    38.8    +      -       +      +
     54F  GLU*     1.3    76.7    -      -       -      +
     56F  LYS*     1.3    65.3    +      -       -      +
     57F  TRP*     3.3    28.5    -      -       +      +
     58F  VAL*     3.2     6.0    +      -       +      +
     59F  ARG*     3.2    23.7    +      -       -      +
    102F  SO4      3.5    29.7    +      -       -      -
    105F   CL      3.8    11.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 56 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54F  GLU      3.6     0.2    +      -       -      -
     55F  LYS*     1.3    72.4    -      -       -      +
     57F  TRP*     1.3    63.0    +      -       -      +
     58F  VAL      3.3     0.2    +      -       -      -
     59F  ARG*     3.3    27.5    +      -       -      +
     60F  GLU*     3.0    55.4    +      -       +      +
    102F  SO4      3.4    22.5    +      -       -      +
    105F   CL      3.3    15.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 57 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15F  ILE*     4.0    29.1    +      -       +      -
     16F  ALA      5.3     2.4    +      -       -      -
     18F  PRO*     3.7    35.6    -      -       +      +
     19F  LEU*     3.8    19.5    -      -       +      -
     41F  PHE*     3.8    14.8    -      +       -      -
     51F  ALA*     4.0     9.4    -      -       +      -
     52F  ASN      5.5     0.4    -      -       -      -
     55F  LYS*     3.7    28.7    -      -       +      +
     56F  LYS*     1.3    78.9    -      -       -      +
     58F  VAL*     1.3    72.7    +      -       +      +
     60F  GLU*     3.9    10.9    -      -       -      +
     61F  TYR*     3.0    76.3    +      +       +      -
    102F  SO4      3.2    33.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 58 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39F  VAL*     3.9    25.4    -      -       +      -
     41F  PHE*     3.7    19.1    -      -       +      -
     51F  ALA*     3.8     9.9    -      -       +      -
     52F  ASN      3.1    30.3    -      -       -      +
     53F  PRO*     4.4     3.6    -      -       +      +
     55F  LYS*     3.2    10.1    +      -       +      +
     56F  LYS      3.2     0.4    -      -       -      -
     57F  TRP*     1.3   110.0    -      -       +      +
     59F  ARG*     1.3    65.7    +      -       -      +
     61F  TYR*     3.3     2.9    +      -       -      +
     62F  ILE*     3.0    25.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 59 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17D  ARG*     4.3    17.0    -      -       -      +
     23D  HIS*     5.1     0.9    -      -       -      -
     53F  PRO      3.4    19.3    -      -       -      +
     54F  GLU*     2.5    32.9    +      -       -      +
     55F  LYS      3.2    15.0    +      -       -      +
     56F  LYS*     3.8    32.8    -      -       -      +
     58F  VAL*     1.3    76.8    -      -       +      +
     60F  GLU*     1.3    58.8    +      -       +      +
     62F  ILE*     3.5    10.3    +      -       +      +
     63F  ASN*     2.9    29.5    +      -       -      +
----------------------------------------------------------
 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
----------------------------------------------------------
     56F  LYS*     3.0    56.7    +      -       +      +
     57F  TRP*     3.9    10.2    -      -       -      +
     59F  ARG*     1.3    77.3    -      -       +      +
     61F  TYR*     1.3    64.5    +      -       +      +
     63F  ASN*     3.4     6.5    +      -       -      +
     64F  SER*     2.8    29.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 61 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18F  PRO*     4.9     4.0    -      -       -      +
     19F  LEU*     2.6    29.6    +      -       +      -
     20F  PRO*     4.4     0.2    -      -       -      +
     21F  ARG*     3.3    44.2    +      -       +      +
     24F  ILE*     4.1    20.0    -      -       +      -
     41F  PHE*     3.7    16.2    -      +       +      -
     57F  TRP*     3.0    59.3    +      +       +      +
     58F  VAL      3.6     4.9    -      -       -      +
     60F  GLU*     1.3    82.0    -      -       +      +
     62F  ILE*     1.3    57.3    +      -       -      +
     64F  SER*     3.2     7.6    +      -       -      -
     65F  LEU*     2.8    36.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 62 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17D  ARG*     6.0     0.9    -      -       -      +
     20D  PRO*     5.1     0.9    -      -       +      -
     23D  HIS*     3.6    20.0    -      -       +      +
     27F  TYR*     3.6    39.5    -      -       +      +
     29F  TYR*     3.9    17.9    -      -       +      +
     39F  VAL*     3.7    39.5    -      -       +      -
     41F  PHE*     4.2     3.8    -      -       +      -
     53F  PRO      6.1     0.2    -      -       -      +
     58F  VAL*     3.0    20.2    +      -       +      +
     59F  ARG*     3.7     8.3    -      -       +      +
     61F  TYR*     1.3    76.5    -      -       -      +
     63F  ASN*     1.3    57.5    +      -       -      +
     65F  LEU*     3.0    10.8    +      -       -      +
     66F  GLU*     2.9    27.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 63 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20D  PRO*     5.4     2.2    -      -       -      +
     22D  ALA*     5.7     1.8    -      -       -      +
     23D  HIS*     3.0    31.9    +      -       +      +
     59F  ARG      2.9    18.3    +      -       -      +
     60F  GLU*     3.7     7.6    -      -       -      +
     62F  ILE*     1.3    76.1    -      -       -      +
     64F  SER*     1.3    62.1    +      -       -      +
     67F  MET*     3.0    39.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 64 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21F  ARG*     3.0    31.3    +      -       -      -
     60F  GLU      2.8    18.1    +      -       -      -
     61F  TYR*     3.3     7.0    -      -       -      -
     63F  ASN*     1.3    77.9    -      -       -      +
     65F  LEU*     1.3    60.8    +      -       -      +
     67F  MET      3.2    20.6    -      -       -      +
     68F  SER*     3.8     7.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 65 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45D  LYS*     3.2    16.6    -      -       +      +
     21F  ARG*     3.4    29.6    -      -       -      +
     24F  ILE*     3.9    24.9    -      -       +      +
     25F  LYS      4.6    12.8    -      -       -      +
     26F  GLU*     4.1     1.1    -      -       -      -
     27F  TYR*     3.7    46.9    -      -       +      +
     41F  PHE*     4.4     5.2    -      -       +      -
     61F  TYR*     2.8    17.5    +      -       +      +
     62F  ILE      3.0     6.7    +      -       -      +
     64F  SER*     1.3    77.7    -      -       -      +
     66F  GLU*     1.3    57.3    +      -       -      +
     68F  SER*     3.1    18.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 66 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23D  HIS*     3.4    39.0    -      -       +      +
     43D  THR*     2.7    25.1    +      -       -      -
     44D  ARG*     2.8    41.5    +      -       -      +
     45D  LYS*     2.9    44.7    +      -       -      +
     47D  ARG*     3.3     3.3    -      -       -      +
     27F  TYR*     2.7    33.3    +      -       +      +
     62F  ILE      2.9    14.7    +      -       -      +
     63F  ASN      4.2     0.9    -      -       -      +
     65F  LEU*     1.3    76.6    -      -       -      +
     67F  MET*     1.3    57.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 67 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22D  ALA*     3.2    36.8    -      -       +      +
     23D  HIS*     3.4    21.8    -      -       +      +
     44D  ARG*     3.6    26.9    -      -       -      +
     63F  ASN*     3.0    32.9    +      -       -      +
     64F  SER*     3.2    12.5    -      -       -      +
     66F  GLU*     1.3    77.5    -      -       +      +
     68F  SER*     1.3    61.8    +      -       -      +
----------------------------------------------------------
 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