Contacts of the helix formed by residues 52 - 66 (chain F) in PDB entry 3MP4


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 SER 52 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50F  ILE*     4.3     0.4    +      -       -      -
     51F  VAL*     1.3    81.7    -      -       -      +
     53F  THR*     1.3    65.3    +      -       -      +
     54F  PRO*     3.5    16.2    -      -       -      +
     55F  VAL*     3.0    28.5    +      -       -      +
     56F  LYS*     3.2    16.3    +      -       -      +
     87F  ASP*     4.3     0.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 53 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52F  SER*     1.3    69.7    -      -       -      +
     54F  PRO*     1.3    75.4    -      -       +      +
     56F  LYS*     2.9    14.6    +      -       -      +
     57F  ILE*     3.0    31.2    +      -       +      +
     87F  ASP*     2.6    32.7    +      -       -      +
     90F  GLU*     4.2    19.1    -      -       +      +
     91F  VAL*     3.7    19.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 54 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52F  SER*     3.5    16.4    -      -       -      +
     53F  THR*     1.3    95.2    -      -       +      +
     55F  VAL*     1.3    64.4    +      -       +      +
     57F  ILE*     3.3    12.1    +      -       +      +
     58F  LYS*     3.0    25.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 55 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51F  VAL*     3.4    26.0    -      -       +      -
     52F  SER*     3.0    31.0    -      -       -      +
     53F  THR      3.1     0.4    -      -       -      -
     54F  PRO*     1.3    80.9    -      -       +      +
     56F  LYS*     1.3    61.5    +      -       -      +
     58F  LYS      3.4     0.3    +      -       -      -
     59F  LEU*     3.2    19.6    +      -       -      +
    305F  PHE*     3.5    21.9    -      -       +      -
    306F  ILE*     3.9    11.2    -      -       +      -
    309F  ALA*     3.8    28.9    -      -       +      -
----------------------------------------------------------
 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
----------------------------------------------------------
     40F  PRO*     5.3     2.2    -      -       +      +
     44F  LEU*     4.0    20.0    -      -       +      -
     50F  ILE*     5.0     3.6    -      -       -      +
     51F  VAL*     2.6    54.0    +      -       +      +
     52F  SER      3.2     3.1    +      -       -      +
     53F  THR      2.9     8.3    +      -       -      +
     55F  VAL*     1.3    79.7    -      -       -      +
     57F  ILE*     1.3    63.0    +      -       -      +
     59F  LEU*     3.2     9.6    +      -       -      +
     60F  ILE*     3.2    28.4    +      -       +      +
     84F  GLN*     3.2    28.8    +      -       -      +
     85F  MET*     4.1    19.1    -      -       +      -
     87F  ASP*     3.5    27.1    +      -       -      +
     91F  VAL*     4.2    17.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 57 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53F  THR*     3.0    33.8    +      -       +      +
     54F  PRO*     3.7    10.3    -      -       +      +
     56F  LYS*     1.3    76.1    -      -       -      +
     58F  LYS*     1.3    62.4    +      -       -      +
     60F  ILE*     3.4     2.9    +      -       -      +
     61F  ASP*     3.1    34.8    +      -       -      +
     90F  GLU*     4.3     3.8    -      -       +      +
     91F  VAL*     4.5     7.9    -      -       +      -
     94F  GLY*     3.3    42.0    -      -       -      +
     95F  ILE*     3.8    18.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 58 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54F  PRO      3.0    16.7    +      -       -      +
     57F  ILE*     1.3    75.4    -      -       -      +
     59F  LEU*     1.3    61.4    +      -       -      +
     61F  ASP*     3.4     8.0    +      -       +      +
     62F  MET*     2.8    47.0    +      -       +      +
    305F  PHE*     3.3    41.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 59 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39F  GLY      5.1     0.4    -      -       -      -
     40F  PRO*     4.5    25.8    -      -       +      -
     44F  LEU*     4.5    11.4    -      -       +      -
     55F  VAL      3.2    13.4    +      -       -      +
     56F  LYS*     3.4     9.9    -      -       -      +
     58F  LYS*     1.3    75.8    -      -       -      +
     60F  ILE*     1.3    53.3    +      -       +      +
     62F  MET*     3.1     7.4    +      -       -      +
     63F  LEU*     2.8    59.1    +      -       +      +
    260F  VAL*     4.5     7.0    -      -       +      -
    263F  LEU*     5.2     0.4    -      -       +      -
    302F  ALA*     3.6    26.9    -      -       +      +
    305F  PHE*     4.0     9.6    -      -       +      -
    306F  ILE*     3.9    36.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 60 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40F  PRO*     3.9    22.2    -      -       +      -
     56F  LYS*     3.2    14.3    +      -       +      +
     57F  ILE      3.8     6.1    -      -       -      +
     58F  LYS      3.4     0.2    -      -       -      -
     59F  LEU*     1.3    73.2    -      -       +      +
     61F  ASP*     1.3    53.7    +      -       -      +
     63F  LEU*     3.2     8.8    +      -       -      +
     64F  SER*     2.6    39.4    +      -       -      +
     71F  ILE*     3.9    10.0    -      -       +      +
     73F  THR*     3.4    39.0    -      -       +      +
     91F  VAL*     3.9     9.6    -      -       +      -
     95F  ILE*     3.7    36.6    -      -       +      -
    103F  TYR*     4.1    16.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 61 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57F  ILE*     3.1    31.2    +      -       -      +
     58F  LYS*     3.8     7.4    -      -       +      +
     60F  ILE*     1.3    76.4    -      -       -      +
     62F  MET*     1.3    54.6    +      -       +      +
     64F  SER*     3.1     8.2    +      -       -      -
     65F  GLU*     2.7    40.1    +      -       -      +
     94F  GLY      5.0     0.3    -      -       -      +
     95F  ILE*     3.9     5.5    -      -       -      +
     96F  GLN*     3.0    62.3    +      -       -      +
     98F  PHE*     4.4     2.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 62 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58F  LYS*     2.8    38.5    +      -       +      +
     59F  LEU      3.4     5.2    -      -       -      +
     61F  ASP*     1.3    78.1    -      -       +      +
     63F  LEU*     1.3    56.8    +      -       -      +
     65F  GLU*     3.4    10.2    +      -       -      +
     66F  ALA*     3.1    24.1    +      -       -      +
    298F  LYS*     4.5     4.2    -      -       -      +
    301F  GLU*     3.3    45.1    -      -       +      +
    302F  ALA*     3.5    15.9    -      -       +      +
    305F  PHE*     3.6    35.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 63 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37F  GLU*     3.8    26.0    -      -       +      +
     40F  PRO*     4.0    11.9    -      -       +      -
     59F  LEU*     2.8    35.0    +      -       +      +
     60F  ILE*     3.5     6.7    -      -       -      +
     61F  ASP      3.1     0.2    -      -       -      -
     62F  MET*     1.3    73.8    -      -       -      +
     64F  SER*     1.3    65.9    +      -       -      +
     65F  GLU      3.1     0.2    -      -       -      -
     66F  ALA*     3.1    16.9    +      -       +      +
     68F  LEU*     3.5    22.4    +      -       +      +
     71F  ILE*     3.6    18.8    -      -       +      -
    260F  VAL*     3.8    29.6    -      -       +      -
    299F  LEU*     4.4    11.2    -      -       +      -
    302F  ALA*     3.7    21.1    -      -       +      -
----------------------------------------------------------
 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
----------------------------------------------------------
     60F  ILE*     2.6    25.6    +      -       -      +
     61F  ASP*     3.4     6.6    -      -       -      -
     63F  LEU*     1.3    76.4    -      -       -      +
     65F  GLU*     1.3    61.7    +      -       -      +
     67F  GLY*     3.3    11.1    +      -       -      -
     68F  LEU      4.9     0.4    -      -       -      -
     71F  ILE*     3.7     7.1    -      -       -      +
     96F  GLN      4.5     0.5    +      -       -      -
     98F  PHE*     3.4    35.6    -      -       -      -
    101F  ILE*     3.7    19.6    -      -       -      +
    103F  TYR*     3.2    28.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 65 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61F  ASP*     2.7    17.2    +      -       -      +
     62F  MET*     3.4    13.0    -      -       -      +
     64F  SER*     1.3    77.5    -      -       -      +
     66F  ALA*     1.3    57.5    +      -       -      +
     67F  GLY      3.3     1.2    +      -       -      -
     96F  GLN*     5.2     1.9    +      -       -      +
     98F  PHE*     3.0    34.5    -      -       -      -
    298F  LYS*     3.1    35.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 66 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62F  MET      3.1    12.0    +      -       -      +
     63F  LEU*     3.1    13.9    +      -       -      +
     65F  GLU*     1.3    78.6    -      -       -      +
     67F  GLY*     1.3    55.6    +      -       -      +
     68F  LEU*     3.5    11.4    -      -       +      -
    294F  VAL*     3.1     4.5    -      -       +      +
    295F  ASN*     2.7    34.8    +      -       -      +
    298F  LYS*     3.8    10.3    -      -       +      -
    299F  LEU*     3.7    33.2    -      -       +      +
----------------------------------------------------------
 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