Contacts of the helix formed by residues 98 - 105 (chain E) in PDB entry 3V5I


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 ALA 98 (chain E).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67E  PRO      4.0    10.8    -      -       -      +
     68E  GLY*     4.3     3.1    -      -       -      -
     69E  GLY      5.2     2.0    -      -       -      +
     97E  ALA*     1.3    72.7    -      -       +      +
     99E  MET*     1.3    61.9    +      -       -      +
    101E  SER*     2.8    29.9    +      -       -      -
    102E  PHE*     3.0     5.7    +      -       -      +
    121E  MET*     2.9    16.8    +      -       +      -
    123E  HIS*     3.3    40.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 99 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36E  ILE*     4.1    13.9    -      -       +      -
     68E  GLY*     4.1     0.6    -      -       -      -
     69E  GLY      4.2    17.3    -      -       -      +
     70E  SER      3.9     6.1    -      -       -      +
     71E  VAL*     3.6    41.5    -      -       +      +
     74E  GLY*     3.7    26.9    -      -       -      -
     75E  PHE*     5.2     0.9    -      -       -      -
     98E  ALA*     1.3    81.3    -      -       +      +
    100E  GLY*     1.3    55.1    +      -       -      +
    102E  PHE*     3.3    30.2    +      -       +      +
    103E  LEU*     2.9    30.4    +      -       +      +
    150E  LEU*     3.7    25.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 100 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36E  ILE*     4.0    12.7    -      -       -      +
     64E  ILE*     4.0     9.7    -      -       -      +
     66E  SER*     4.3    13.9    -      -       -      -
     68E  GLY*     3.8     4.8    -      -       -      -
     96E  ALA*     4.0     6.7    -      -       -      -
     97E  ALA      2.7    16.3    +      -       -      -
     99E  MET*     1.3    77.4    -      -       -      +
    101E  SER*     1.3    55.2    +      -       -      -
    103E  LEU*     3.3     6.6    +      -       -      +
    104E  LEU*     3.0    24.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 101 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96E  ALA*     3.2    22.9    -      -       -      -
     97E  ALA      3.4     3.8    +      -       -      -
     98E  ALA*     2.8    18.7    +      -       -      -
    100E  GLY*     1.3    69.2    -      -       -      -
    102E  PHE*     1.3    65.1    +      -       -      +
    104E  LEU*     3.3     9.9    +      -       -      +
    105E  ALA*     3.0    24.6    +      -       -      +
    120E  VAL*     3.6    21.1    -      -       -      -
    121E  MET      3.3    12.5    +      -       -      -
    122E  ILE*     3.4    15.4    -      -       -      +
    154E  LEU*     5.7     0.4    -      -       -      +
    185E  LEU*     4.6     7.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 102 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74E  GLY      5.6     0.2    -      -       -      -
     75E  PHE*     3.8    28.7    -      +       -      -
     78E  TYR*     3.5    27.1    -      +       +      -
     98E  ALA      3.0     7.3    +      -       -      +
     99E  MET*     3.3    37.0    -      -       +      +
    101E  SER*     1.3    79.0    +      -       -      +
    103E  LEU*     1.3    67.9    +      -       +      +
    105E  ALA*     3.3     4.7    +      -       -      +
    106E  ALA*     3.2    17.0    +      -       -      +
    150E  LEU*     3.7    38.1    -      -       +      -
    153E  ILE*     3.7    27.1    -      -       +      -
    154E  LEU*     4.0    26.7    -      -       +      -
    157E  ARG*     5.8     0.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 103 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32E  LEU*     4.3    10.8    -      -       +      -
     36E  ILE*     3.8    28.3    -      -       +      -
     62E  LEU*     5.5     1.8    -      -       +      -
     64E  ILE*     4.0    12.6    -      -       +      -
     74E  GLY*     3.5    26.2    -      -       -      +
     77E  ILE*     3.9    31.0    -      -       +      -
     78E  TYR*     3.7    24.9    -      -       +      +
     81E  ILE*     4.8     9.0    -      -       +      +
     90E  THR*     3.8     7.1    -      -       -      +
     99E  MET*     2.9    14.4    +      -       +      +
    100E  GLY*     3.7     6.3    -      -       -      +
    101E  SER      3.2     0.2    -      -       -      -
    102E  PHE*     1.3    78.1    -      -       +      +
    104E  LEU*     1.3    62.9    +      -       -      +
    106E  ALA*     2.8    24.0    +      -       +      +
    107E  GLY      3.6     3.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 104 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64E  ILE*     3.6    13.1    -      -       +      +
     90E  THR*     2.7    36.9    +      -       -      +
     91E  ILE      4.3     0.7    -      -       -      -
     92E  CYS*     3.6    32.5    -      -       +      +
     96E  ALA*     4.1     7.2    -      -       +      -
    100E  GLY      3.0    13.8    +      -       -      +
    101E  SER*     3.4    11.7    -      -       -      +
    103E  LEU*     1.3    75.7    -      -       -      +
    105E  ALA*     1.3    60.4    +      -       -      +
    106E  ALA      3.3     1.2    +      -       -      -
    107E  GLY      3.5     1.4    +      -       -      -
    112E  ARG*     3.6     5.9    -      -       -      +
    113E  PHE      3.5    22.2    -      -       -      +
    120E  VAL*     3.9    23.8    -      -       +      -
    185E  LEU*     4.5     4.9    -      -       +      +
    186E  ILE*     3.7    23.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 105 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101E  SER      3.0    13.1    +      -       -      +
    102E  PHE      3.7     5.4    -      -       -      +
    103E  LEU      3.1     0.4    -      -       -      -
    104E  LEU*     1.3    77.4    -      -       -      +
    106E  ALA*     1.3    58.2    +      -       -      +
    107E  GLY      3.3     0.7    -      -       -      -
    112E  ARG*     2.9    26.7    +      -       -      +
    154E  LEU*     4.3    12.6    -      -       +      -
    157E  ARG*     3.5    19.2    +      -       +      -
    158E  THR*     5.0     1.3    -      -       +      -
    185E  LEU*     3.4    40.6    -      -       +      +
----------------------------------------------------------
 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