Contacts of the helix formed by residues 835 - 847 (chain A) in PDB entry 3E0D


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 TYR 835 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    635A  VAL*     4.0    26.7    -      -       +      -
    639A  LYS*     3.7    36.1    -      -       +      -
    641A  VAL*     3.6    29.5    -      -       +      +
    643A  LEU*     4.6    23.1    -      -       +      -
    830A  TYR*     5.0     5.4    -      +       -      -
    831A  VAL*     2.7    24.4    +      -       +      +
    832A  LYS      4.3     3.6    -      -       -      -
    833A  ALA      3.6     0.6    -      -       -      -
    834A  HIS*     1.3    90.9    -      -       +      +
    836A  PRO*     1.1   111.0    -      -       +      +
    838A  GLU*     4.8     2.2    -      -       +      -
    839A  PHE*     2.5    28.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 836 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    639A  LYS*     4.6     9.9    -      -       -      +
    832A  LYS      4.6     7.4    -      -       -      +
    833A  ALA      5.2     2.0    -      -       -      +
    834A  HIS      3.2    11.0    -      -       -      +
    835A  TYR*     1.1   118.2    -      -       +      +
    837A  VAL*     1.3    73.3    +      -       +      +
    838A  GLU*     4.1     6.3    -      -       -      +
    839A  PHE*     3.4     2.8    -      -       -      +
    840A  MET*     3.2    19.4    +      -       -      +
    864A  LEU*     5.7    10.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 837 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    836A  PRO*     1.3    81.4    -      -       +      +
    838A  GLU*     1.3    71.4    +      -       -      +
    840A  MET*     3.0     9.2    +      -       -      +
    841A  ALA*     2.9    25.3    +      -       -      +
    866A  ILE*     3.6    33.7    -      -       +      -
    882A  VAL*     3.7    31.4    -      -       +      -
    885A  GLU*     5.6     6.3    -      -       -      +
    886A  GLU      5.7     0.4    -      -       -      -
    887A  ILE*     3.7    22.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 838 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    631A  ALA*     5.5     0.9    -      -       -      -
    634A  ILE*     2.4    44.5    -      -       +      +
    635A  VAL*     4.1    19.5    -      -       +      +
    638A  SER*     2.1    40.8    +      -       -      -
    639A  LYS*     4.1    16.2    +      -       -      -
    835A  TYR*     4.8     4.7    -      -       +      -
    836A  PRO*     4.1     2.8    -      -       -      +
    837A  VAL*     1.3    89.1    +      -       -      +
    839A  PHE*     1.3    56.0    +      -       -      +
    841A  ALA*     3.1     7.7    +      -       -      +
    842A  ALA*     2.7    38.4    +      -       -      +
    882A  VAL*     4.9    10.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 839 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    627A  PHE*     3.4    27.9    -      +       -      -
    631A  ALA*     5.0     2.5    -      -       -      -
    635A  VAL*     5.4     1.6    -      -       -      +
    828A  THR*     2.6    36.6    -      -       +      -
    831A  VAL*     1.7    59.9    -      -       +      -
    832A  LYS*     2.4    44.2    -      -       +      -
    835A  TYR*     2.5    32.2    +      -       +      +
    836A  PRO      4.5     1.1    -      -       -      -
    838A  GLU*     1.3    79.9    -      -       -      +
    840A  MET*     1.3    64.5    +      -       +      +
    842A  ALA*     3.1     4.2    +      -       -      +
    843A  LEU*     2.9    39.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 840 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    832A  LYS*     4.1    18.2    -      -       +      +
    836A  PRO      3.2     9.5    +      -       -      +
    837A  VAL*     3.0    11.2    +      -       -      +
    839A  PHE*     1.3    90.0    -      -       +      +
    841A  ALA*     1.3    58.2    +      -       -      +
    843A  LEU*     3.2    31.3    +      -       +      +
    844A  LEU*     2.9    34.6    +      -       +      +
    857A  TYR*     4.0    13.0    -      -       +      +
    860A  ASP*     4.4     8.3    -      -       +      -
    861A  ALA*     3.5    44.2    -      -       +      -
    864A  LEU*     4.8    11.0    -      -       +      -
    887A  ILE*     5.0     6.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 841 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    634A  ILE*     4.7     7.6    -      -       +      +
    837A  VAL      2.9    13.0    +      -       -      +
    838A  GLU*     3.6    11.9    -      -       -      +
    840A  MET*     1.3    74.2    -      -       -      +
    842A  ALA*     1.3    60.4    +      -       -      +
    844A  LEU*     3.8     3.4    -      -       -      -
    845A  SER*     2.9    27.4    +      -       -      -
    880A  PHE*     3.3    37.2    -      -       +      +
    881A  LYS*     4.8     0.7    -      -       -      +
    882A  VAL*     4.5    14.4    -      -       +      -
    887A  ILE*     4.8     7.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 842 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    627A  PHE*     2.8    20.1    -      -       +      -
    630A  GLU*     4.1     9.2    -      -       +      -
    631A  ALA*     3.8    31.4    -      -       +      +
    634A  ILE*     4.3     5.6    -      -       +      +
    838A  GLU      2.7    18.8    +      -       -      +
    839A  PHE      3.5     4.9    -      -       -      +
    841A  ALA*     1.3    70.9    -      -       -      +
    843A  LEU*     1.3    61.3    +      -       -      +
    844A  LEU      3.2     0.2    -      -       -      -
    845A  SER*     4.1     6.1    -      -       -      -
    846A  VAL*     2.8    28.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 843 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    627A  PHE*     2.4    48.2    -      -       +      -
    666A  GLY*     3.2    46.4    -      -       -      +
    832A  LYS*     5.1     0.4    -      -       -      -
    839A  PHE*     2.9    18.8    +      -       +      +
    840A  MET*     3.2    35.6    +      -       +      +
    842A  ALA*     1.3    76.3    -      -       -      +
    844A  LEU*     1.3    62.2    +      -       -      +
    846A  VAL*     3.7     0.9    +      -       +      +
    847A  GLU*     3.4    16.6    +      -       +      +
    857A  TYR*     3.5    40.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 844 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    840A  MET*     2.9    31.4    +      -       +      +
    841A  ALA*     3.7     2.0    -      -       -      +
    843A  LEU*     1.3    74.9    -      -       -      +
    845A  SER*     1.3    63.4    +      -       -      +
    847A  GLU      3.2     5.0    +      -       -      -
    848A  ARG*     3.0    23.0    +      -       -      -
    854A  VAL*     3.7    22.1    -      -       -      +
    857A  TYR*     3.6    29.6    -      -       +      +
    858A  ILE*     3.9     9.2    -      -       +      -
    861A  ALA*     5.4     2.5    -      -       +      -
    868A  VAL*     5.8     1.3    -      -       +      -
    880A  PHE*     2.0    96.8    -      -       +      -
    887A  ILE*     4.6     8.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 845 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    471A  ARG*     5.0     0.2    +      -       -      -
    630A  GLU*     4.1    18.4    +      -       -      +
    633A  ARG*     6.4     0.2    -      -       -      -
    634A  ILE*     5.9     2.7    -      -       -      -
    841A  ALA      2.9    19.4    +      -       -      -
    842A  ALA*     3.6     8.5    -      -       -      -
    844A  LEU*     1.3    74.9    -      -       -      +
    846A  VAL*     1.3    64.8    +      -       -      +
    848A  ARG*     3.1    25.0    +      -       -      +
    879A  ASP*     1.6    63.8    +      -       -      +
    880A  PHE      4.4     1.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 846 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    623A  ARG*     2.8    68.9    +      -       +      +
    626A  THR*     4.0     9.9    -      -       +      +
    627A  PHE*     2.9    59.7    -      -       +      +
    630A  GLU*     4.9     9.9    -      -       +      -
    842A  ALA      2.8    15.2    +      -       -      +
    843A  LEU*     4.2     2.5    -      -       +      +
    845A  SER*     1.3    71.8    -      -       -      +
    847A  GLU*     1.3    66.2    +      -       +      +
    848A  ARG*     3.5     2.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 847 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    623A  ARG*     4.9    11.2    -      -       -      +
    671A  GLU*     5.5     0.5    -      -       -      +
    843A  LEU*     3.4     9.9    +      -       +      +
    844A  LEU      3.2     6.6    +      -       -      -
    846A  VAL*     1.3    91.5    -      -       +      +
    848A  ARG*     1.3    62.8    +      -       -      +
    849A  HIS      3.2     3.1    -      -       -      -
    850A  ASP*     3.2    22.7    +      -       +      +
    853A  LYS*     3.4    32.3    +      -       +      +
    854A  VAL*     3.4    11.1    +      -       -      +
    857A  TYR*     3.6    36.3    +      -       +      +
      7C    G      4.6    13.0    -      -       -      +
      8C    T      4.8     2.9    +      -       -      -
----------------------------------------------------------
 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