Contacts of the helix formed by residues 434 - 445 (chain B) in PDB entry 4J15


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 ASP 434 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  MET*     3.4    38.9    -      -       +      +
    602A  GOL      3.7    21.4    +      -       -      -
    432B  ILE*     3.3     3.7    -      -       +      +
    433B  HIS*     1.3    79.6    -      -       +      +
    435B  PRO*     1.4    73.7    -      -       -      +
    436B  GLN*     3.2    14.1    +      -       -      +
    437B  LEU*     3.1    26.5    +      -       +      +
    438B  LEU*     3.0    24.1    +      -       -      +
    459B  PHE*     4.9     0.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 435 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    149A  GLU*     4.3     5.2    -      -       +      +
    433B  HIS      3.8     2.9    -      -       -      +
    434B  ASP*     1.4    88.0    -      -       -      +
    436B  GLN*     1.3    53.6    +      -       -      +
    438B  LEU*     3.4     4.5    +      -       +      +
    439B  THR*     2.7    38.0    +      -       -      -
    456B  ILE*     4.2    10.5    -      -       +      +
    459B  PHE*     3.5    39.5    -      -       +      +
    460B  ARG*     3.6    40.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 436 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    434B  ASP*     3.2    11.7    +      -       -      +
    435B  PRO*     1.3    74.6    -      -       -      +
    437B  LEU*     1.3    65.6    +      -       -      +
    439B  THR*     3.2     8.0    +      -       -      -
    440B  GLU*     3.0    49.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 437 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  MET*     3.8    30.5    -      -       +      -
     36A  GLN*     5.5     3.6    -      -       -      +
    404B  MET*     4.1    16.8    -      -       -      -
    405B  PRO*     4.4    10.3    -      -       +      -
    432B  ILE*     3.9    21.1    -      -       +      -
    434B  ASP*     3.1    15.0    +      -       -      +
    436B  GLN*     1.3    74.3    -      -       -      +
    438B  LEU*     1.3    65.1    +      -       -      +
    440B  GLU*     3.4    21.7    +      -       +      +
    441B  ARG*     3.3    35.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 438 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    401B  PHE*     3.5    32.3    -      -       +      +
    402B  TYR*     4.0    21.1    -      -       +      -
    432B  ILE*     3.6    23.7    -      -       +      +
    434B  ASP      3.0    18.1    +      -       -      +
    435B  PRO*     3.6     4.7    -      -       +      +
    437B  LEU*     1.3    76.4    -      -       -      +
    439B  THR*     1.3    58.7    +      -       -      +
    441B  ARG*     3.7     1.0    +      -       -      +
    442B  ALA*     3.0    28.3    +      -       -      +
    455B  TYR*     3.8    11.9    -      -       +      +
    456B  ILE*     4.1    18.2    -      -       +      -
    459B  PHE*     3.8    37.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 439 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    435B  PRO      2.7    18.6    +      -       -      -
    436B  GLN*     3.4    10.9    -      -       -      -
    437B  LEU      3.2     0.2    -      -       -      -
    438B  LEU*     1.3    74.9    -      -       -      +
    440B  GLU*     1.3    65.5    +      -       +      +
    442B  ALA*     3.2     3.6    +      -       -      +
    443B  LEU*     3.0    25.5    +      -       +      +
    449B  LEU*     3.7    35.6    -      -       +      +
    456B  ILE*     3.7    19.5    -      -       +      +
    460B  ARG*     4.9     4.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 440 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    436B  GLN*     3.0    47.3    +      -       +      +
    437B  LEU*     3.4    28.4    -      -       +      +
    438B  LEU      3.4     0.2    -      -       -      -
    439B  THR*     1.3    75.7    -      -       +      +
    441B  ARG*     1.3    53.7    +      -       +      +
    443B  LEU*     3.0    17.2    -      -       +      +
    444B  HIS*     2.9    31.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 441 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    396B  LEU*     3.4    45.1    +      -       -      +
    397B  ALA*     5.6     1.6    -      -       -      +
    401B  PHE*     3.4    20.9    +      -       -      +
    403B  THR      4.8     0.2    +      -       -      -
    405B  PRO*     4.6     8.5    -      -       +      +
    432B  ILE*     3.5    21.3    -      -       +      -
    437B  LEU*     3.4    29.6    -      -       +      +
    438B  LEU      3.8     3.1    -      -       -      +
    440B  GLU*     1.3    77.1    -      -       -      +
    442B  ALA*     1.3    64.8    +      -       -      +
    444B  HIS*     3.3    40.9    +      -       -      +
    445B  HIS*     3.2    49.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 442 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    401B  PHE*     3.6    23.3    -      -       +      -
    438B  LEU      3.0    19.2    +      -       -      +
    439B  THR*     3.2     5.8    +      -       -      +
    441B  ARG*     1.3    75.6    -      -       -      +
    443B  LEU*     1.3    64.0    +      -       -      +
    445B  HIS      3.3     2.3    +      -       -      -
    446B  GLY      3.2     4.0    +      -       -      -
    447B  ILE*     3.0    30.9    +      -       +      +
    449B  LEU*     3.9     8.5    -      -       +      -
    452B  ILE*     3.8    23.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 443 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    439B  THR*     3.0    17.9    +      -       +      +
    440B  GLU*     3.0    15.7    -      -       +      +
    442B  ALA*     1.3    72.1    -      -       -      +
    444B  HIS*     1.3    62.1    +      -       -      +
    446B  GLY*     2.9    19.3    +      -       -      +
    447B  ILE      4.7     6.5    -      -       -      +
    449B  LEU*     3.9    31.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 444 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    440B  GLU      2.9    11.9    +      -       -      +
    441B  ARG*     3.4    48.2    +      -       -      +
    442B  ALA      3.2     0.2    -      -       -      -
    443B  LEU*     1.3    77.7    -      -       -      +
    445B  HIS*     1.3    66.4    +      +       -      +
    446B  GLY      3.4     1.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 445 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    396B  LEU*     5.0     1.8    +      -       -      +
    397B  ALA*     5.1     8.7    +      -       -      -
    399B  ARG      3.2    27.3    +      -       -      -
    400B  PRO*     4.0     1.7    +      -       +      +
    401B  PHE*     3.6    31.9    +      -       +      -
    441B  ARG*     3.2    34.4    +      -       -      +
    442B  ALA      3.3     4.7    +      -       -      +
    443B  LEU      3.1     0.4    -      -       -      -
    444B  HIS*     1.3    90.6    -      +       +      +
    446B  GLY*     1.3    61.8    +      -       -      +
    447B  ILE*     3.4    11.8    +      -       +      +
----------------------------------------------------------
 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