Contacts of the helix formed by residues 63 - 78 (chain E) 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 E).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96C  ALA      4.9     1.0    +      -       -      -
   1192D  LEU*     3.8     7.9    -      -       -      -
     61E  HIS      4.2     6.1    -      -       -      +
     62E  VAL*     1.3    85.4    -      -       -      +
     64E  VAL*     1.3    66.9    +      -       -      +
     65E  ASP*     3.6    12.4    +      -       -      +
     66E  ASP*     2.9    42.5    +      -       -      +
     67E  LEU*     3.2     9.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 64 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1185D  ARG*     4.3    23.3    -      -       -      +
   1188D  CYS*     4.1     7.0    -      -       +      +
   1189D  SER*     3.7    44.2    -      -       -      +
   1192D  LEU*     3.6    21.0    -      -       +      +
     63E  THR*     1.3    73.6    -      -       -      +
     65E  ASP*     1.3    59.0    +      -       -      +
     67E  LEU*     3.1     9.4    +      -       -      +
     68E  VAL*     3.0    28.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 65 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96C  ALA*     3.2    47.7    -      -       -      +
     97C  GLN*     3.6    14.5    -      -       +      +
   1185D  ARG*     2.8    42.6    +      -       -      -
     63E  THR*     3.2     9.8    +      -       -      +
     64E  VAL*     1.3    76.3    +      -       -      +
     66E  ASP*     1.3    65.0    +      -       -      +
     68E  VAL*     3.5     4.1    +      -       -      -
     69E  ALA*     3.1    23.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 66 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96C  ALA      4.3     8.3    -      -       -      +
     97C  GLN*     5.6     1.7    -      -       -      +
     99C  ALA*     5.8     2.3    +      -       -      -
     53E  VAL*     5.5     0.2    -      -       -      -
     57E  LYS*     4.0    21.8    +      -       +      +
     61E  HIS      3.6    11.8    -      -       -      +
     62E  VAL*     3.8     8.2    -      -       +      -
     63E  THR*     2.9    38.6    +      -       -      +
     65E  ASP*     1.3    79.1    -      -       -      +
     67E  LEU*     1.3    62.4    +      -       -      +
     69E  ALA*     3.4     5.2    +      -       -      +
     70E  GLU*     3.1    29.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 67 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1188D  CYS*     3.6    25.1    -      -       +      +
   1192D  LEU*     3.8    32.1    -      -       +      -
     50E  CYS*     3.9    17.3    -      -       -      +
     53E  VAL*     3.5    32.8    -      -       +      -
     54E  ILE*     4.0    15.7    -      -       +      -
     62E  VAL*     3.6    25.8    -      -       +      -
     63E  THR      3.2     4.7    +      -       -      +
     64E  VAL*     3.1     8.3    +      -       -      +
     66E  ASP*     1.3    76.2    -      -       -      +
     68E  VAL*     1.3    66.0    +      -       -      +
     70E  GLU*     3.2     4.7    +      -       -      +
     71E  ILE*     3.1    29.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 68 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97C  GLN*     3.7    25.8    -      -       -      +
   1181D  MET*     5.7     7.6    -      -       +      +
   1184D  VAL*     4.3     6.7    -      -       +      -
   1185D  ARG*     3.9    41.3    -      -       +      +
   1188D  CYS*     3.7    13.9    -      -       +      -
     64E  VAL*     3.0    22.1    +      -       +      +
     65E  ASP*     3.7     9.9    -      -       -      +
     66E  ASP      3.3     0.2    -      -       -      -
     67E  LEU*     1.3    75.8    -      -       -      +
     69E  ALA*     1.3    62.5    +      -       -      +
     72E  THR*     2.7    44.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 69 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97C  GLN*     3.7    31.4    -      -       +      +
     98C  HIS*     6.3     0.2    -      -       +      -
     65E  ASP      3.1    14.2    +      -       -      +
     66E  ASP*     3.7     5.8    -      -       -      +
     67E  LEU      3.3     0.2    -      -       -      -
     68E  VAL*     1.3    81.5    -      -       -      +
     70E  GLU*     1.3    64.1    +      -       +      +
     72E  THR*     4.6     2.0    -      -       -      -
     73E  PRO*     3.3    18.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 70 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49E  HIS*     4.3     7.0    +      -       -      -
     53E  VAL*     4.1    23.4    -      -       +      +
     57E  LYS*     2.9    36.6    +      -       -      +
     66E  ASP      3.1    17.8    +      -       -      +
     67E  LEU      3.2     3.8    +      -       -      +
     69E  ALA*     1.3    81.1    -      -       +      +
     71E  ILE*     1.3    62.7    +      -       +      +
     73E  PRO*     3.6    10.4    -      -       -      +
     74E  LYS*     5.2     1.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 71 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1184D  VAL*     3.8    13.7    -      -       +      -
   1187D  THR*     5.5     0.7    -      -       +      -
   1188D  CYS*     3.3    26.9    -      -       -      +
     46E  LEU*     3.9    36.6    -      -       +      +
     49E  HIS*     3.4    36.9    -      -       +      +
     50E  CYS*     4.4     9.9    -      -       -      -
     53E  VAL*     3.7    23.3    -      -       +      -
     67E  LEU*     3.1    19.0    +      -       -      +
     70E  GLU*     1.3    74.8    -      -       -      +
     72E  THR*     1.3    67.1    +      -       -      +
     73E  PRO*     3.4     2.7    -      -       -      -
     74E  LYS*     3.7     4.3    +      -       -      +
     75E  GLY*     3.1    19.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 72 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1180D  MET*     4.4    12.8    -      -       +      +
   1181D  MET*     4.8    13.3    -      -       +      +
   1184D  VAL*     3.6    16.1    -      -       -      +
     68E  VAL*     2.7    39.6    +      -       -      +
     69E  ALA*     4.6     2.5    -      -       -      -
     71E  ILE*     1.3    78.5    -      -       -      +
     73E  PRO*     1.3    70.8    -      -       +      +
     75E  GLY*     3.0     2.3    +      -       -      -
     76E  ARG*     2.8    50.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 73 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69E  ALA      3.3    19.5    -      -       -      +
     70E  GLU      3.6     8.1    -      -       -      +
     71E  ILE      3.5     2.7    -      -       -      -
     72E  THR*     1.3    95.2    -      -       +      +
     74E  LYS*     1.3    62.7    +      -       -      +
     76E  ARG*     3.1    28.3    +      -       -      +
     77E  ALA*     3.3    11.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 74 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49E  HIS*     4.2    40.6    +      -       +      +
     70E  GLU      5.2     0.8    +      -       -      +
     71E  ILE*     3.7     6.1    +      -       -      +
     72E  THR      3.4     0.6    -      -       -      -
     73E  PRO*     1.3    79.0    -      -       -      +
     75E  GLY*     1.3    62.8    +      -       -      +
     77E  ALA*     3.0    16.1    +      -       +      +
     78E  LEU*     3.1    54.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 75 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1180D  MET*     4.4     3.8    -      -       -      +
   1184D  VAL*     5.2     2.0    -      -       -      -
     42E  TRP*     3.2    40.6    +      -       -      -
     46E  LEU*     4.5    11.0    -      -       -      +
     49E  HIS*     5.8     0.2    -      -       -      -
     71E  ILE      3.1    12.7    +      -       -      -
     72E  THR*     3.0     8.9    +      -       -      -
     74E  LYS*     1.3    77.7    -      -       -      +
     76E  ARG*     1.3    59.1    +      -       -      +
     77E  ALA      3.4     0.3    +      -       -      -
     78E  LEU*     3.5     5.9    +      -       -      -
     79E  VAL*     3.7     5.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 76 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1177D  GLU*     2.9    39.0    +      -       -      +
   1180D  MET*     3.5    21.0    -      -       +      +
   1181D  MET*     4.6     6.1    -      -       -      +
     72E  THR*     2.8    34.9    +      -       -      +
     73E  PRO*     3.1    19.6    +      -       -      +
     75E  GLY*     1.3    77.4    -      -       -      +
     77E  ALA*     1.3    59.3    +      -       -      +
     79E  VAL*     3.3    21.4    -      -       -      +
     84E  LYS*     4.7     3.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 77 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73E  PRO      3.3     9.2    +      -       -      +
     74E  LYS*     3.0    12.1    +      -       +      +
     76E  ARG*     1.3    76.8    -      -       -      +
     78E  LEU*     1.3    70.3    +      -       +      +
     79E  VAL*     3.5     4.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 78 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42E  TRP*     3.6    21.5    -      -       +      +
     45E  GLN*     3.4    33.0    -      -       +      +
     46E  LEU      6.1     0.2    -      -       -      +
     74E  LYS*     3.1    55.6    +      -       +      +
     75E  GLY*     3.5     2.0    +      -       -      -
     76E  ARG      3.4     0.2    -      -       -      -
     77E  ALA*     1.3    89.2    -      -       +      +
     79E  VAL*     1.3    65.4    +      -       -      +
     80E  PRO*     3.1    13.3    -      -       -      +
----------------------------------------------------------
 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