Contacts of the helix formed by residues 62 - 76 (chain B) in PDB entry 3SFX


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 ARG 62 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57B  ARG*     4.8     5.3    -      -       -      +
     58B  TYR      3.3    25.1    +      -       -      -
     59B  SER*     4.5     2.4    -      -       -      +
     60B  GLY      3.3    15.8    +      -       -      +
     61B  LEU*     1.3    68.6    -      -       -      +
     63B  LYS*     1.3    63.5    -      -       -      +
     65B  GLU*     3.1    27.9    +      -       +      +
     66B  HIS*     3.1    27.8    +      -       +      +
    385B  LEU      4.6     2.8    +      -       -      -
    386B  VAL      5.7     1.6    +      -       -      -
    389B  GLN*     2.8    41.7    +      -       -      +
    390B  GLN      2.9    28.9    +      -       -      -
    391B  ASP*     4.4     0.8    -      -       -      +
    392B  PRO*     3.8    34.7    -      -       -      +
    523B  3FX      3.1    30.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 63 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61B  LEU*     3.0    32.2    +      -       +      +
     62B  ARG*     1.3    71.6    -      -       -      +
     64B  GLN*     1.3    61.0    +      -       +      +
     66B  HIS*     3.4     9.0    +      -       -      +
     67B  THR*     2.8    34.4    +      -       -      +
    102B  LEU*     3.3    49.3    +      -       +      +
    103B  GLY*     5.2     1.0    -      -       -      -
    491B  ASP      4.1    16.6    +      -       -      +
    493B  ARG      3.4    23.8    +      -       -      -
    494B  ILE*     4.2     9.9    -      -       -      +
    523B  3FX      3.5     2.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 64 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63B  LYS*     1.3    77.6    -      -       +      +
     65B  GLU*     1.3    60.0    +      -       -      +
     67B  THR*     3.3     8.3    +      -       -      -
     68B  GLN*     3.0    44.1    +      -       -      +
    523B  3FX      3.0    36.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 65 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62B  ARG*     3.5    35.2    +      -       +      +
     64B  GLN*     1.3    77.1    -      -       -      +
     66B  HIS*     1.3    58.3    +      -       -      +
     68B  GLN*     3.3    15.8    +      -       -      +
     69B  PHE*     2.9    28.6    +      -       -      +
    390B  GLN      4.7     1.2    -      -       -      +
    391B  ASP      4.2     3.8    -      -       -      +
    392B  PRO*     3.8     4.5    -      -       -      +
    393B  GLY*     2.8    34.7    +      -       -      -
    394B  SER      4.5     6.6    +      -       -      +
    395B  THR      3.8     1.5    -      -       -      +
    396B  GLY*     3.7    24.5    +      -       -      +
    523B  3FX      3.0    32.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 66 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61B  LEU*     4.0    12.1    -      -       +      +
     62B  ARG*     3.1    26.6    +      -       +      -
     63B  LYS*     3.8     7.2    -      -       -      +
     65B  GLU*     1.3    73.8    -      -       +      +
     67B  THR*     1.3    65.4    +      -       -      +
     69B  PHE*     3.3     3.3    +      -       -      +
     70B  LEU*     3.1    27.7    +      -       -      +
    102B  LEU*     4.0    21.5    -      -       +      -
    389B  GLN*     2.8    36.8    +      -       +      +
    390B  GLN*     4.6     2.5    -      -       +      -
    396B  GLY*     4.4     3.8    -      -       -      -
    397B  GLY*     2.9    50.1    +      -       -      +
    398B  LEU*     3.8    24.5    -      -       +      +
    411B  THR*     5.2     3.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 67 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63B  LYS      2.8    25.0    +      -       -      -
     64B  GLN*     3.5     9.4    -      -       -      -
     66B  HIS*     1.3    74.8    -      -       -      +
     68B  GLN*     1.3    63.3    +      -       +      +
     70B  LEU*     3.2     4.7    +      -       -      +
     71B  ALA*     3.0    24.7    +      -       +      +
     99B  LEU*     4.0    23.0    -      -       +      +
    102B  LEU*     4.1     7.6    -      -       -      +
    104B  VAL*     3.5    34.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 68 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64B  GLN*     3.0    32.5    +      -       -      +
     65B  GLU*     3.3    16.0    +      -       -      +
     67B  THR*     1.3    76.7    -      -       +      +
     69B  PHE*     1.3    63.3    +      -       -      +
     71B  ALA*     3.3    14.9    +      -       -      +
     72B  SER*     3.2    18.2    +      -       -      -
    395B  THR      5.4     1.6    -      -       -      +
    523B  3FX      6.3     1.0    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 69 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65B  GLU      2.9    10.6    +      -       -      +
     66B  HIS      3.4     8.5    -      -       -      +
     68B  GLN*     1.3    76.9    -      -       -      +
     70B  LEU*     1.3    65.3    +      -       +      +
     72B  SER*     2.9    20.2    +      -       -      -
     73B  SER*     3.0    12.5    +      -       -      -
    395B  THR*     3.4    26.8    +      -       -      +
    396B  GLY      3.3    17.7    -      -       -      -
    397B  GLY*     3.6    18.8    -      -       -      +
    406B  PRO*     3.8    15.9    -      -       +      -
    407B  ASP*     3.7    32.1    -      -       -      -
    408B  GLN*     4.0    18.6    -      -       +      -
    411B  THR*     3.6    19.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 70 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66B  HIS      3.1    17.2    +      -       -      +
     67B  THR      3.2     4.4    +      -       -      +
     69B  PHE*     1.3    83.4    -      -       +      +
     71B  ALA*     1.3    63.2    +      -       -      +
     73B  SER*     3.0    14.1    +      -       -      -
     74B  PHE*     3.1    14.7    +      -       -      +
     94B  TRP      4.5     2.5    -      -       -      +
     95B  THR*     3.9    34.9    -      -       +      +
     98B  SER*     3.4    28.0    -      -       -      -
     99B  LEU*     4.0    26.9    -      -       +      -
    102B  LEU*     4.0     9.6    -      -       +      -
    408B  GLN*     4.6    11.7    -      -       +      -
    411B  THR*     4.0    24.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 71 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67B  THR*     3.0    19.5    +      -       +      +
     68B  GLN*     3.3     9.8    +      -       -      +
     70B  LEU*     1.3    76.5    -      -       -      +
     72B  SER*     1.3    56.1    +      -       -      +
     74B  PHE*     2.7    36.4    +      -       +      +
     75B  PHE*     3.6    22.1    +      -       +      -
     99B  LEU*     5.9     0.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 72 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68B  GLN      3.2    10.4    +      -       -      -
     69B  PHE*     2.9    20.8    +      -       -      -
     71B  ALA*     1.3    76.5    -      -       -      +
     73B  SER*     1.3    62.4    +      -       -      +
     74B  PHE      3.6     0.2    +      -       -      -
     75B  PHE      4.2     0.2    +      -       -      -
     76B  GLN*     3.0    26.2    +      -       -      +
     78B  PRO*     5.8     0.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 73 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31A  VAL*     4.1     6.4    -      -       -      +
     69B  PHE      3.0    12.9    +      -       -      -
     70B  LEU*     3.0    21.0    +      -       -      -
     72B  SER*     1.3    81.3    +      -       -      +
     74B  PHE*     1.3    62.6    +      -       -      +
     75B  PHE      3.5     0.6    +      -       -      -
     76B  GLN      4.2     0.3    +      -       -      -
     77B  LEU*     3.3    37.2    -      -       -      +
     81B  PHE*     5.1     0.2    -      -       -      -
     91B  LEU*     6.0     0.4    -      -       -      -
     95B  THR*     4.6     3.6    +      -       -      -
    408B  GLN*     2.9    39.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 74 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30A  VAL*     3.7    29.0    -      -       +      -
     31A  VAL*     2.9    34.5    +      -       +      +
     70B  LEU      3.1    10.3    +      -       -      +
     71B  ALA*     2.7    29.9    +      -       -      +
     73B  SER*     1.3    71.6    -      -       -      +
     75B  PHE*     1.4    86.8    +      +       +      +
     95B  THR*     3.7    29.8    -      -       +      -
     96B  VAL*     4.6     4.3    -      -       +      -
     99B  LEU*     3.9     7.9    -      -       +      -
    106B  LEU*     3.6    34.5    -      -       +      -
    110B  THR*     3.8    17.0    -      -       +      -
    114B  VAL*     4.1     9.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 75 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32A  PRO*     3.5    19.1    -      -       -      +
     71B  ALA*     3.6    25.4    +      -       +      -
     72B  SER      4.2     0.4    +      -       -      -
     74B  PHE*     1.4   117.3    -      +       +      +
     76B  GLN*     1.3    66.7    +      -       -      +
    106B  LEU*     6.2     0.2    -      -       +      -
    110B  THR*     4.3    11.4    -      -       +      -
    113B  ARG*     3.3    39.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 76 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32A  PRO*     3.8    11.3    -      -       +      +
     34A  MET*     3.4    46.9    -      -       +      +
     72B  SER      3.0    20.4    +      -       -      +
     74B  PHE      3.8     1.0    -      -       -      -
     75B  PHE*     1.3    80.3    -      -       -      +
     77B  LEU*     1.3    64.1    +      -       -      +
     78B  PRO*     4.1     4.3    -      -       -      +
----------------------------------------------------------
 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