Contacts of the helix formed by residues 440 - 451 (chain A) in PDB entry 3JUE


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 CYS 440 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    420A  CYS*     3.5     6.8    -      -       +      -
    423A  CYS*     3.8     7.4    -      -       -      -
    425A  GLU*     3.6    28.5    -      -       +      -
    428A  PRO*     3.7    10.7    -      -       +      +
    429A  GLU      4.8     0.4    -      -       -      +
    430A  TRP*     4.0     2.9    -      -       -      -
    439A  LEU*     1.3    75.1    -      -       -      +
    441A  ILE*     1.3    57.1    +      -       -      +
    442A  GLN*     3.7    11.0    -      -       -      -
    443A  CYS*     3.4    13.9    -      -       -      -
    444A  SER*     2.8    36.2    +      -       -      -
    506A  LYS*     4.7     1.1    -      -       -      -
    999A   ZN      2.4    35.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 441 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    429A  GLU*     6.4     0.7    -      -       +      -
    430A  TRP*     4.0    18.7    -      -       +      +
    440A  CYS*     1.3    73.0    -      -       -      +
    442A  GLN*     1.3    65.1    +      -       -      +
    444A  SER*     2.9    19.2    +      -       -      -
    445A  GLY*     3.1     8.3    +      -       -      -
   1135A  SO4      3.2    24.5    +      -       -      +
    413B  SER*     6.0     2.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 442 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    440A  CYS*     3.3    10.2    -      -       -      -
    441A  ILE*     1.3    83.3    -      -       -      +
    443A  CYS*     1.3    61.8    +      -       -      +
    445A  GLY*     3.3     2.4    +      -       -      -
    446A  ILE*     3.2    31.8    +      -       +      +
    499A  PRO      4.3     1.7    -      -       -      +
    501A  CYS      3.9     6.1    +      -       -      +
    503A  ARG*     3.7    35.9    +      -       +      +
    506A  LYS*     2.9    41.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 443 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    420A  CYS*     3.9    11.7    -      -       -      -
    422A  ASP*     3.9    15.0    -      -       -      +
    423A  CYS*     3.9     2.5    -      -       -      -
    439A  LEU*     4.5     3.6    -      -       +      -
    440A  CYS*     3.4     5.0    -      -       -      +
    442A  GLN*     1.3    76.4    -      -       -      +
    444A  SER*     1.3    60.6    +      -       -      +
    446A  ILE*     3.2     3.7    +      -       -      +
    447A  HIS*     2.9    34.6    +      -       -      -
    506A  LYS*     3.9    22.0    -      -       -      -
    510A  ILE*     3.8    26.7    -      -       +      -
    999A   ZN      2.4    34.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 444 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    430A  TRP*     3.5    24.3    -      -       -      -
    439A  LEU*     4.0    16.0    -      -       -      +
    440A  CYS      2.8    23.2    +      -       -      -
    441A  ILE      2.9     8.7    +      -       -      -
    443A  CYS*     1.3    73.2    -      -       -      +
    445A  GLY*     1.3    63.8    +      -       -      +
    447A  HIS*     3.2     4.7    +      -       -      +
    448A  ARG*     3.0    25.5    +      -       -      +
    457A  VAL*     3.7    11.7    -      -       -      +
   1135A  SO4      2.6    26.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 445 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    441A  ILE      3.1    11.8    +      -       -      -
    442A  GLN*     3.7     4.0    -      -       -      -
    443A  CYS      3.3     0.2    -      -       -      -
    444A  SER*     1.3    76.5    +      -       -      +
    446A  ILE*     1.3    59.9    +      -       -      +
    448A  ARG*     3.2    24.8    +      -       -      +
    503A  ARG*     4.0    11.0    -      -       -      -
   1135A  SO4      3.2    17.5    -      -       -      -
    409B  ALA*     3.4    14.6    -      -       -      +
    413B  SER*     4.7     5.8    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 446 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    442A  GLN*     3.2    19.4    +      -       +      +
    443A  CYS*     3.2     7.4    +      -       -      +
    445A  GLY*     1.3    70.8    -      -       -      +
    447A  HIS*     1.3    67.0    +      -       -      +
    448A  ARG      3.0     1.6    -      -       -      -
    449A  SER*     2.8    29.1    +      -       -      -
    450A  LEU*     3.7     7.5    +      -       +      +
    503A  ARG*     3.9    34.5    -      -       +      +
    506A  LYS*     3.8    17.0    -      -       +      -
    507A  GLU*     3.7    42.8    -      -       +      +
    510A  ILE*     3.8    32.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 447 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    422A  ASP*     2.6    31.6    -      -       -      -
    432A  SER*     4.3     0.4    -      -       -      -
    435A  LEU*     4.0     8.9    -      -       +      +
    437A  VAL*     4.9     0.4    -      -       -      +
    439A  LEU*     3.6    25.0    -      -       +      +
    443A  CYS      2.9    26.4    +      -       -      +
    444A  SER*     3.2    10.5    +      -       -      +
    446A  ILE*     1.3    71.2    -      -       -      +
    448A  ARG*     1.3    61.4    +      -       -      +
    450A  LEU*     3.1    30.4    +      -       +      +
    451A  GLY      4.0     2.9    +      -       -      -
    455A  SER*     2.7    36.7    -      -       -      +
    457A  VAL*     3.7    15.3    -      -       +      +
    510A  ILE*     3.9     9.3    -      -       +      +
    514A  TYR*     3.4    26.7    +      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 448 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    430A  TRP*     3.2    23.2    -      -       -      -
    444A  SER      3.0    16.1    +      -       -      +
    445A  GLY*     3.3    13.9    -      -       -      +
    446A  ILE      3.0     1.4    +      -       -      -
    447A  HIS*     1.3    76.1    -      -       -      +
    449A  SER*     1.3    60.6    +      -       -      +
    450A  LEU      3.3     0.7    +      -       -      -
    451A  GLY*     3.8     8.8    +      -       -      -
    455A  SER      5.9     0.7    -      -       -      -
    457A  VAL*     3.6    27.5    +      -       +      +
   1135A  SO4      2.7    46.6    +      -       -      -
    408B  VAL*     3.8    16.5    -      -       -      +
    409B  ALA*     3.9    18.4    -      -       -      +
    412B  GLN*     3.0    45.1    -      -       -      +
    418B  ALA*     3.4    17.4    -      -       -      +
    427B  ALA*     4.4    10.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 449 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    445A  GLY      3.6     1.8    +      -       -      -
    446A  ILE*     2.8    21.9    +      -       -      -
    448A  ARG*     1.3    79.3    -      -       -      +
    450A  LEU*     1.3    63.9    +      -       -      +
    451A  GLY      3.5     0.3    +      -       -      -
    503A  ARG*     5.0     2.4    +      -       -      -
    404B  VAL*     4.8     7.0    -      -       -      +
    405B  GLY*     3.5    41.4    +      -       -      -
    406B  HIS*     4.2     8.1    +      -       -      -
    409B  ALA*     3.5    11.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 450 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    446A  ILE*     3.9    12.8    -      -       +      +
    447A  HIS*     3.1    31.1    +      -       +      +
    449A  SER*     1.3    82.4    -      -       -      +
    451A  GLY*     1.3    60.6    +      -       -      +
    453A  HIS*     5.8     0.2    -      -       -      +
    454A  PHE*     3.5    43.4    -      -       +      -
    455A  SER*     4.5     4.5    -      -       -      -
    510A  ILE*     4.0    22.9    -      -       +      -
    511A  HIS*     4.7    13.0    -      -       +      +
    514A  TYR*     4.6    13.0    -      -       +      -
    515A  VAL*     3.9    20.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 451 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    447A  HIS      4.0     1.8    +      -       -      -
    448A  ARG      3.8     9.3    +      -       -      -
    449A  SER      3.3     4.2    +      -       -      -
    450A  LEU*     1.3    80.6    -      -       -      +
    452A  VAL*     1.3    59.5    +      -       -      -
    453A  HIS*     3.2     3.6    -      -       -      -
    454A  PHE*     3.1    17.8    +      -       -      -
    455A  SER*     3.1    16.2    +      -       -      +
----------------------------------------------------------
 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