Contacts of the helix formed by residues 200 - 207 (chain E) in PDB entry 1TYE


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 VAL 200 (chain E).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100E  TRP*     4.2    18.6    -      -       +      -
    103E  VAL*     3.8    31.9    -      -       +      -
    105E  VAL*     5.1     4.5    -      -       +      -
    132E  LEU*     4.4    11.2    -      -       +      -
    175E  VAL*     4.5     9.4    -      -       +      -
    179E  GLY      2.9    25.8    +      -       -      +
    181E  LEU*     4.1    20.4    -      -       +      +
    198E  ALA      3.5     1.0    +      -       -      -
    199E  PRO*     1.3    69.9    -      -       -      +
    201E  ALA*     1.3    63.5    +      -       -      +
    203E  ILE*     3.2     9.0    +      -       -      +
    204E  PHE*     3.1    37.0    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 201 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100E  TRP*     5.6     3.9    -      -       +      -
    179E  GLY      4.7     0.6    +      -       -      -
    199E  PRO*     3.2     4.3    -      -       +      +
    200E  VAL*     1.3    79.9    -      -       -      +
    202E  ASP*     1.3    64.9    +      -       -      +
    204E  PHE*     3.4     7.5    +      -       -      +
    205E  SER*     3.0    28.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 202 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199E  PRO*     3.0    22.2    +      -       +      +
    201E  ALA*     1.3    83.4    -      -       -      +
    203E  ILE*     1.3    64.2    +      -       -      +
    205E  SER*     3.5     8.5    +      -       -      +
    206E  SER*     2.9    31.0    +      -       -      -
    216E  VAL*     4.1    10.3    -      -       +      +
    217E  SER*     5.1     4.3    +      -       -      +
    218E  SER*     2.6    34.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 203 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    132E  LEU*     3.9    24.9    -      -       +      -
    141E  ALA*     4.6     1.8    -      -       +      -
    142E  GLU      3.8    20.5    -      -       -      +
    143E  TYR*     3.6    38.6    -      -       +      -
    181E  LEU*     3.8    24.5    -      -       +      -
    198E  ALA*     3.9    26.5    -      -       +      +
    199E  PRO      2.9    13.0    +      -       -      +
    200E  VAL*     3.2    10.1    +      -       -      +
    202E  ASP*     1.3    78.9    -      -       -      +
    204E  PHE*     1.3    62.2    +      -       -      +
    206E  SER*     3.6     4.9    +      -       -      -
    207E  TYR*     3.2    23.7    +      -       -      +
    214E  TRP*     5.1     1.1    +      -       -      +
    216E  VAL*     4.7     4.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 204 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103E  VAL*     4.3     9.2    -      -       +      -
    132E  LEU*     3.6    31.4    -      -       +      -
    133E  ALA      4.1    16.6    -      -       -      -
    134E  GLN*     4.5     9.6    -      -       +      -
    139E  ARG*     3.9    58.4    +      -       +      +
    140E  ARG      4.1    11.7    -      -       -      -
    141E  ALA*     3.6    22.8    -      -       +      +
    200E  VAL*     3.1    41.1    +      -       +      -
    201E  ALA*     3.7     9.6    -      -       -      +
    202E  ASP      3.3     0.2    -      -       -      -
    203E  ILE*     1.3    78.0    -      -       -      +
    205E  SER*     1.3    62.3    +      -       -      +
    207E  TYR*     3.4    18.4    +      -       -      +
    208E  ARG*     5.1     0.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 205 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    139E  ARG*     5.2     2.9    -      -       -      +
    201E  ALA      3.0    17.1    +      -       -      -
    202E  ASP*     3.5    12.5    +      -       -      +
    204E  PHE*     1.3    76.9    -      -       -      +
    206E  SER*     1.3    61.6    +      -       -      +
    208E  ARG*     3.1    29.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 206 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202E  ASP      2.9    20.0    +      -       -      -
    203E  ILE      3.6     2.3    +      -       -      -
    205E  SER*     1.3    79.6    +      -       -      +
    207E  TYR*     1.3    63.7    +      -       -      +
    208E  ARG*     3.6    15.6    +      -       -      +
    214E  TRP*     3.7    19.2    +      -       -      -
    215E  HIS      5.3     1.8    -      -       -      -
    216E  VAL*     3.5    30.1    -      -       -      +
    217E  SER*     5.6     2.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 207 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75E  GLU*     5.5     2.1    +      -       -      -
    140E  ARG*     4.0    11.7    -      -       +      -
    141E  ALA*     3.7    21.8    -      -       +      -
    142E  GLU*     3.4    53.4    +      -       +      +
    203E  ILE      3.2    18.1    +      -       -      +
    204E  PHE      3.7    10.3    -      -       -      +
    205E  SER      3.3     1.2    -      -       -      -
    206E  SER*     1.3    77.1    +      -       -      +
    208E  ARG*     1.3    84.8    +      -       -      +
    209E  PRO*     3.7    38.7    -      -       +      +
    210E  GLY      4.8     1.6    +      -       -      -
    211E  ILE      5.1     2.5    -      -       -      -
    214E  TRP*     3.8    28.9    -      +       +      +
----------------------------------------------------------
 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