Contacts of the helix formed by residues 47 - 61 (chain F) in PDB entry 3SWD


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 LEU 47 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22F  LYS*     4.1    20.0    -      -       +      -
     45F  PRO*     3.3    26.3    +      -       +      +
     46F  LYS*     1.3    75.7    -      -       -      +
     48F  LYS*     1.3    68.0    +      -       -      +
     49F  ASP      3.2     1.8    -      -       -      +
     50F  VAL*     3.0    41.6    +      -       +      +
     51F  ASP*     3.3    16.2    +      -       -      -
     66F  ARG*     4.7     1.0    -      -       -      +
    231F  ASP*     5.9     0.2    -      -       -      +
    396F  ASP      3.4    14.1    -      -       -      +
    397F  ARG      3.7    11.7    -      -       -      +
    398F  GLY      3.6    29.8    -      -       -      +
    399F  TYR      3.7     7.0    -      -       -      +
    400F  GLU      3.9    10.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 48 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47F  LEU*     1.3    70.0    -      -       -      +
     49F  ASP*     1.3    62.9    +      -       -      +
     51F  ASP*     3.1    25.2    +      -       -      +
     52F  THR*     3.1    30.8    +      -       -      +
    393F  TYR      5.4     0.4    -      -       -      +
    396F  ASP*     3.1    25.8    +      -       +      +
    397F  ARG*     3.9    18.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 49 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22F  LYS*     3.1    27.1    +      -       -      -
     26F  LEU*     4.0    22.2    -      -       +      +
     47F  LEU*     3.1     3.8    +      -       +      -
     48F  LYS*     1.3    76.2    -      -       -      +
     50F  VAL*     1.3    59.2    +      -       -      +
     52F  THR*     3.5     3.0    +      -       -      -
     53F  SER*     3.1    26.2    +      -       -      -
     90F  MET*     3.6    22.7    -      -       -      +
    370F  LEU*     3.4     8.2    -      -       -      +
    397F  ARG*     2.9    51.1    +      -       -      +
    501F  EPZ      4.3     2.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 50 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25F  ALA*     4.5     7.9    -      -       +      -
     26F  LEU*     4.1    14.1    -      -       +      -
     29F  LEU*     4.1    13.7    -      -       +      -
     44F  VAL*     3.8    18.2    -      -       +      -
     45F  PRO*     3.6    21.1    -      -       +      +
     47F  LEU*     3.0    21.7    +      -       +      +
     49F  ASP*     1.3    73.1    -      -       -      +
     51F  ASP*     1.3    66.8    -      -       -      +
     53F  SER*     3.1     8.6    +      -       -      -
     54F  MET*     2.9    37.6    +      -       +      +
     66F  ARG*     4.0    20.2    -      -       -      +
     70F  VAL*     5.2     1.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 51 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47F  LEU      3.3    14.2    +      -       -      +
     48F  LYS*     3.1    32.8    +      -       +      +
     50F  VAL*     1.3    77.8    -      -       -      +
     52F  THR*     1.3    56.9    +      -       -      +
     54F  MET*     3.2    27.0    +      -       +      +
     55F  LYS*     2.9    28.5    +      -       -      +
     66F  ARG*     4.9     5.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 52 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48F  LYS*     3.1    24.4    +      -       -      +
     49F  ASP*     3.8     9.5    +      -       -      -
     50F  VAL      3.3     0.2    -      -       -      -
     51F  ASP*     1.3    76.5    -      -       -      +
     53F  SER*     1.3    61.8    +      -       -      +
     55F  LYS*     3.4     7.9    +      -       +      -
     56F  LEU*     3.1    22.0    +      -       -      +
     86F  LEU*     3.8    20.2    -      -       +      +
     89F  THR*     3.9    22.2    +      -       -      +
     90F  MET*     4.0    27.6    -      -       +      +
     93F  SER*     5.0     0.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 53 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26F  LEU*     3.6    19.9    -      -       -      +
     29F  LEU*     3.9    23.1    -      -       -      -
     30F  PHE*     3.7    21.4    -      -       -      -
     49F  ASP      3.1    14.4    +      -       -      -
     50F  VAL      3.1     8.8    +      -       -      -
     52F  THR*     1.3    74.7    -      -       -      +
     54F  MET*     1.3    59.8    +      -       -      +
     56F  LEU*     3.2     3.9    +      -       -      +
     57F  LEU*     2.9    34.2    +      -       -      +
     90F  MET*     3.6     9.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 54 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29F  LEU*     4.6     9.4    -      -       +      -
     50F  VAL*     2.9    20.5    +      -       +      +
     51F  ASP*     3.2    36.3    -      -       +      +
     53F  SER*     1.3    73.2    -      -       -      +
     55F  LYS*     1.3    59.2    +      -       -      +
     57F  LEU*     3.1     9.8    +      -       +      +
     58F  SER*     2.8    32.9    +      -       -      -
     64F  VAL*     3.7    26.3    -      -       +      +
     65F  GLU*     5.0     1.8    -      -       -      -
     66F  ARG*     3.8    24.5    -      -       +      -
     70F  VAL*     3.7    27.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 55 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51F  ASP      2.9    16.8    +      -       -      +
     52F  THR*     3.8     8.5    -      -       +      +
     53F  SER      3.3     0.2    -      -       -      -
     54F  MET*     1.3    75.9    -      -       -      +
     56F  LEU*     1.3    61.9    +      -       -      +
     58F  SER*     3.4     6.3    +      -       -      -
     59F  GLN*     3.0    38.5    +      -       +      +
     86F  LEU*     4.0    24.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 56 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30F  PHE*     3.5    28.3    -      -       +      -
     52F  THR      3.1    10.3    +      -       -      +
     53F  SER*     3.7     6.7    -      -       -      +
     55F  LYS*     1.3    72.7    -      -       -      +
     57F  LEU*     1.3    67.0    +      -       -      +
     59F  GLN*     3.0    17.8    +      -       +      +
     60F  LEU*     3.1    28.3    +      -       +      +
     81F  CYS      4.5     0.2    -      -       -      +
     82F  ALA*     3.9    32.3    -      -       +      -
     83F  PRO*     4.3     7.4    -      -       +      -
     86F  LEU*     3.3    24.0    -      -       +      +
     93F  SER*     3.7    29.8    -      -       -      +
     96F  ALA*     4.3     4.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 57 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29F  LEU*     3.6    39.0    -      -       +      +
     30F  PHE*     4.3    18.6    -      -       +      -
     32F  ALA*     5.8     0.2    -      -       +      -
     33F  LEU*     4.0    26.5    -      -       +      -
     53F  SER*     2.9    19.5    +      -       -      +
     54F  MET*     3.4     9.9    -      -       -      +
     56F  LEU*     1.3    74.5    -      -       -      +
     58F  SER*     1.3    64.2    +      -       -      +
     60F  LEU*     3.0    19.0    +      -       +      +
     61F  GLY      3.4     0.2    +      -       -      -
     62F  ALA*     3.2    26.8    +      -       +      +
     64F  VAL*     3.8    15.3    -      -       +      -
     72F  ILE*     3.9    26.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 58 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54F  MET      2.8    20.6    +      -       -      -
     55F  LYS*     3.7     7.0    -      -       -      -
     57F  LEU*     1.3    73.3    -      -       -      +
     59F  GLN*     1.3    57.4    +      -       -      +
     61F  GLY*     2.8    22.3    +      -       -      -
     62F  ALA      3.6    15.8    +      -       -      +
     64F  VAL*     4.3     9.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 59 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55F  LYS*     3.0    32.7    +      -       +      +
     56F  LEU*     3.0    11.9    +      -       +      +
     58F  SER*     1.3    74.9    -      -       -      +
     60F  LEU*     1.3    53.5    +      -       +      +
     61F  GLY*     3.2     1.2    +      -       -      -
     79F  VAL*     2.6    27.7    -      -       +      +
     81F  CYS      5.8     1.8    -      -       -      +
     83F  PRO*     3.7    25.5    -      -       -      +
     86F  LEU*     3.3    25.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 60 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33F  LEU*     3.6    36.8    -      -       +      -
     56F  LEU*     3.1    32.2    +      -       +      +
     57F  LEU*     3.0    13.8    +      -       +      +
     59F  GLN*     1.3    75.6    -      -       -      +
     61F  GLY*     1.3    57.7    +      -       -      +
     62F  ALA      4.9     0.2    -      -       -      +
     77F  VAL*     3.4    11.6    -      -       +      +
     78F  ASN      3.0    17.5    +      -       -      -
     79F  VAL*     3.0    42.0    +      -       +      +
     80F  PHE      4.3     2.5    -      -       -      -
     81F  CYS      3.7    34.8    -      -       -      +
     82F  ALA*     4.7     0.7    -      -       +      +
     96F  ALA*     4.6     4.3    -      -       +      -
    100F  LEU*     4.2    13.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 61 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58F  SER      2.8    10.8    +      -       -      -
     59F  GLN      3.0     2.5    -      -       -      -
     60F  LEU*     1.3    80.7    -      -       -      +
     62F  ALA*     1.3    63.4    +      -       -      +
     63F  LYS*     4.0     6.1    +      -       -      +
     73F  ASP      4.6     0.3    -      -       -      +
     76F  ASP*     3.3    26.3    +      -       -      +
     77F  VAL*     4.1     3.6    -      -       -      -
     78F  ASN*     3.7    15.3    -      -       -      -
----------------------------------------------------------
 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