Contacts of the helix formed by residues 63 - 78 (chain F) in PDB entry 4DHX


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 THR 63 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1232D  LEU*     3.5     6.1    -      -       -      -
     61F  HIS      5.1     2.7    -      -       -      +
     62F  VAL*     1.3    84.0    -      -       -      +
     64F  VAL*     1.3    67.8    +      -       -      +
     65F  ASP*     3.7     6.4    +      -       -      +
     66F  ASP*     3.1    33.5    +      -       -      +
     67F  LEU*     3.1    18.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 64 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97B  GLN      4.5     7.9    -      -       -      +
     98B  HIS*     5.5     2.9    -      -       -      -
   1225D  PHE*     3.4    39.7    -      -       +      +
   1228D  ALA*     4.3     1.3    -      -       +      +
   1229D  LYS*     4.1    30.1    -      -       +      +
   1232D  LEU*     3.4    17.9    -      -       +      +
     63F  THR*     1.3    75.5    -      -       -      +
     65F  ASP*     1.3    79.5    +      -       -      +
     67F  LEU*     3.3     5.3    +      -       -      +
     68F  VAL*     2.9    29.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 65 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19B  LYS*     2.8    42.7    +      -       -      +
     22B  GLU*     5.5     1.3    -      -       -      +
     23B  THR*     5.3     2.0    -      -       -      +
     98B  HIS*     3.2    32.9    +      -       -      +
   1225D  PHE*     3.7     7.1    -      -       -      -
     63F  THR*     3.2     5.4    +      -       -      +
     64F  VAL*     1.3    88.4    -      -       -      +
     66F  ASP*     1.3    66.8    +      -       -      +
     68F  VAL*     3.9     6.7    -      -       -      +
     69F  ALA*     3.2    23.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 66 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61F  HIS      3.8    10.7    -      -       -      +
     62F  VAL*     4.5     7.9    -      -       +      -
     63F  THR*     3.1    40.1    +      -       -      +
     65F  ASP*     1.3    78.0    -      -       -      +
     67F  LEU*     1.3    62.3    +      -       -      +
     69F  ALA*     3.7     5.5    +      -       -      +
     70F  GLU*     3.3    24.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 67 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1228D  ALA*     3.8    35.4    -      -       +      +
   1231D  THR*     5.0     0.4    -      -       -      -
   1232D  LEU*     4.1    17.9    -      -       +      -
     50F  CYS*     3.9    24.7    -      -       +      +
     53F  VAL*     3.6    35.2    -      -       +      -
     54F  ILE*     4.2    10.1    -      -       +      -
     62F  VAL*     4.0     8.1    -      -       +      -
     63F  THR      3.1    11.5    +      -       -      +
     64F  VAL*     3.6     8.3    -      -       -      +
     66F  ASP*     1.3    75.6    -      -       -      +
     68F  VAL*     1.3    66.3    +      -       -      +
     70F  GLU*     2.9    13.8    +      -       -      +
     71F  ILE*     3.0    27.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 68 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1221D  VAL*     5.8     2.9    -      -       +      +
   1224D  ILE*     4.3     8.7    -      -       +      +
   1225D  PHE*     3.9    41.7    -      -       +      -
   1228D  ALA*     4.0     9.2    -      -       +      +
     64F  VAL      2.9    21.3    +      -       -      +
     65F  ASP*     3.9     9.2    -      -       -      +
     67F  LEU*     1.3    77.1    -      -       -      +
     69F  ALA*     1.3    61.5    +      -       -      +
     70F  GLU      3.1     0.2    +      -       -      -
     71F  ILE*     3.2     8.6    +      -       -      +
     72F  THR*     2.7    43.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 69 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65F  ASP      3.2    15.3    +      -       -      +
     66F  ASP*     3.9     6.7    -      -       -      +
     67F  LEU      3.2     0.2    -      -       -      -
     68F  VAL*     1.3    82.6    -      -       -      +
     70F  GLU*     1.3    61.9    +      -       -      +
     72F  THR*     4.4     4.5    -      -       -      -
     73F  PRO*     3.8    14.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 70 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49F  HIS*     4.2     7.9    -      -       +      -
     53F  VAL*     4.0    32.3    -      -       +      -
     57F  LYS*     4.5    18.7    +      -       -      -
     66F  ASP      3.3    13.5    +      -       -      +
     67F  LEU*     2.9    12.4    +      -       -      +
     69F  ALA*     1.3    81.4    -      -       -      +
     71F  ILE*     1.3    60.0    +      -       +      +
     72F  THR      3.5     0.6    +      -       -      -
     73F  PRO*     3.9     8.0    -      -       -      +
     74F  LYS      5.2     0.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 71 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1224D  ILE*     3.9    32.0    -      -       +      +
   1228D  ALA*     4.1     8.1    -      -       +      -
     46F  LEU*     4.0    15.6    -      -       +      +
     49F  HIS*     3.6    26.7    -      -       +      +
     50F  CYS*     3.3    34.1    -      -       -      -
     53F  VAL*     4.5     2.5    -      -       +      -
     67F  LEU*     3.0    34.5    +      -       +      +
     68F  VAL*     3.6     4.9    -      -       -      +
     70F  GLU*     1.3    80.4    -      -       +      +
     72F  THR*     1.3    62.6    +      -       -      +
     73F  PRO      3.4     2.0    -      -       -      -
     74F  LYS*     3.1     5.9    +      -       -      +
     75F  GLY*     2.8    26.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 72 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1224D  ILE*     3.9    19.5    -      -       +      +
     68F  VAL*     2.7    35.7    +      -       -      +
     69F  ALA*     4.4     4.1    -      -       -      -
     71F  ILE*     1.3    78.4    -      -       -      +
     73F  PRO*     1.3    71.9    -      -       +      +
     75F  GLY*     3.1     1.9    +      -       -      -
     76F  ARG*     3.0    64.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 73 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69F  ALA      3.8    13.2    -      -       -      +
     70F  GLU      3.9     7.0    -      -       -      +
     71F  ILE      3.6     2.5    -      -       -      -
     72F  THR*     1.3   100.0    -      -       +      +
     74F  LYS*     1.3    61.7    +      -       -      +
     76F  ARG*     3.5    11.2    +      -       +      +
     77F  ALA*     3.1    24.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 74 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45F  GLN*     5.3     2.7    -      -       -      -
     46F  LEU*     4.7     5.2    -      -       +      -
     49F  HIS*     3.6    50.3    -      -       +      +
     70F  GLU      5.2     0.4    +      -       -      +
     71F  ILE      3.1     9.5    +      -       -      +
     73F  PRO*     1.3    75.8    -      -       -      +
     75F  GLY*     1.3    67.0    +      -       -      +
     77F  ALA*     3.3     7.1    +      -       +      -
     78F  LEU*     3.0    53.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 75 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1220D  LEU*     4.5     2.2    -      -       -      -
   1224D  ILE*     4.2     6.3    -      -       -      -
     42F  TRP*     2.9    36.6    +      -       -      -
     46F  LEU*     3.9    18.3    -      -       -      +
     71F  ILE      2.8    14.2    +      -       -      -
     72F  THR      3.1     3.1    +      -       -      -
     74F  LYS*     1.3    76.5    -      -       -      +
     76F  ARG*     1.3    60.5    +      -       -      +
     78F  LEU*     3.3     6.6    +      -       -      -
     79F  VAL*     3.5     3.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 76 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1217D  ASP*     6.2     3.4    -      -       -      +
   1220D  LEU*     3.7    24.2    -      -       +      +
   1221D  VAL*     5.7     7.9    -      -       -      +
   1224D  ILE*     4.5     2.8    -      -       +      +
     72F  THR*     3.0    44.3    +      -       +      +
     73F  PRO*     3.8    10.7    -      -       -      +
     75F  GLY*     1.3    76.2    -      -       -      +
     77F  ALA*     1.3    62.1    +      -       -      +
     78F  LEU      3.1     1.0    +      -       -      -
     79F  VAL*     3.3    19.6    +      -       -      +
     84F  LYS*     4.6     7.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 77 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73F  PRO      3.1    14.7    +      -       -      +
     74F  LYS*     3.9     8.3    -      -       +      +
     76F  ARG*     1.3    77.9    -      -       -      +
     78F  LEU*     1.3    61.6    +      -       +      +
     79F  VAL      3.3     5.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 78 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42F  TRP*     3.4    36.1    -      -       +      +
     45F  GLN*     3.5    49.5    -      -       +      +
     46F  LEU*     3.8    13.9    -      -       +      +
     74F  LYS*     3.0    48.4    +      -       +      +
     75F  GLY*     3.5     1.1    -      -       -      +
     76F  ARG      3.0     0.6    -      -       -      -
     77F  ALA*     1.3    79.3    -      -       -      +
     79F  VAL*     1.3    63.6    +      -       -      +
     80F  PRO*     3.2    11.4    -      -       -      +
----------------------------------------------------------
 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