Contacts of the helix formed by residues 417 - 436 (chain A) in PDB entry 2VGL


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 417 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    383A  VAL*     5.6     2.6    -      -       -      +
    386A  ARG*     3.4    41.1    +      -       -      +
    412A  TYR*     5.2     0.4    +      -       -      -
    415A  THR      3.4     5.0    +      -       -      +
    416A  ALA*     1.4    83.6    -      -       -      +
    418A  TYR*     1.3    66.8    +      -       -      +
    419A  SER*     3.6    10.3    +      -       -      +
    420A  ILE*     3.9     5.4    +      -       +      +
    421A  ARG*     3.5    10.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 418 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    416A  ALA      5.1     1.1    -      -       -      -
    417A  ASP*     1.3    72.7    -      -       -      +
    419A  SER*     1.3    70.6    +      -       -      +
    420A  ILE      3.0     4.0    +      -       -      -
    421A  ARG*     3.2    40.9    +      -       -      +
    422A  GLU*     4.3     1.7    +      -       -      +
    456A  TYR*     4.1    16.9    +      +       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 419 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    383A  VAL*     4.6    22.9    -      -       -      +
    386A  ARG*     4.1     3.6    +      -       -      -
    417A  ASP*     3.6    14.9    +      -       -      +
    418A  TYR*     1.3    74.4    -      -       -      +
    420A  ILE*     1.3    74.7    +      -       -      +
    422A  GLU*     4.6     7.8    +      -       -      +
    423A  GLU*     3.7     9.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 420 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    377A  LEU*     5.1     0.7    -      -       +      -
    383A  VAL*     5.1     4.7    -      -       +      +
    386A  ARG*     3.0    55.6    -      -       +      +
    387A  GLN*     4.9     4.5    -      -       +      +
    390A  VAL*     4.5     7.2    -      -       +      -
    412A  TYR*     4.1    13.0    -      -       +      +
    416A  ALA*     5.1     1.6    -      -       +      -
    417A  ASP*     3.9     7.4    +      -       +      +
    418A  TYR      3.1     1.0    -      -       -      -
    419A  SER*     1.3    87.4    -      -       -      +
    421A  ARG*     1.3    68.1    +      -       -      +
    422A  GLU      3.2     2.5    -      -       -      -
    423A  GLU*     3.1    31.1    +      -       +      +
    424A  ILE*     3.2    34.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 421 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    413A  LEU*     2.8    42.0    +      -       +      +
    414A  GLU      3.9    10.1    +      -       -      -
    416A  ALA*     3.6    15.1    +      -       +      +
    417A  ASP      3.5    12.3    -      -       -      +
    418A  TYR*     3.2    35.8    +      -       -      +
    420A  ILE*     1.3    78.1    -      -       -      +
    422A  GLU*     1.3    65.7    +      -       -      +
    424A  ILE*     3.1     3.1    +      -       -      +
    425A  VAL*     2.9    29.3    +      -       +      +
    452A  ILE*     3.2    37.0    +      -       -      +
    453A  ALA*     3.2    21.2    -      -       -      +
    456A  TYR*     3.9    24.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 422 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    418A  TYR      4.3     1.9    +      -       -      +
    419A  SER      5.0     7.1    -      -       -      +
    420A  ILE      3.1     0.8    +      -       -      -
    421A  ARG*     1.3    81.2    -      -       -      +
    423A  GLU*     1.3    62.7    +      -       -      +
    425A  VAL*     4.0     2.1    -      -       -      +
    426A  LEU*     3.3    20.7    +      -       +      +
    456A  TYR*     3.6    31.0    -      -       +      +
    288M  ARG*     5.3     7.9    +      -       -      +
    290M  ILE*     4.7    13.4    -      -       +      +
    308M  LYS*     2.7    46.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 423 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    383A  VAL*     5.9     0.7    -      -       -      +
    387A  GLN*     2.6    48.9    +      -       -      +
    390A  VAL*     5.2     6.3    -      -       +      -
    391A  ASP*     5.3     2.9    -      -       -      +
    419A  SER      3.7     7.9    +      -       -      +
    420A  ILE*     3.1    38.6    +      -       +      +
    422A  GLU*     1.3    80.6    -      -       -      +
    424A  ILE*     1.3    59.2    +      -       +      +
    426A  LEU*     3.3    10.3    +      -       -      +
    427A  LYS*     3.1    45.6    +      -       -      +
    188M  GLN*     4.5     5.4    -      -       -      +
    288M  ARG*     5.2     8.4    +      -       -      +
    290M  ILE*     5.9     7.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 424 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    377A  LEU*     5.7     0.7    -      -       +      -
    390A  VAL*     4.2    23.6    -      -       +      -
    409A  MET*     3.9    33.7    -      -       +      +
    412A  TYR*     3.5    30.5    -      -       +      -
    413A  LEU*     4.1    23.3    -      -       +      -
    416A  ALA*     5.0     0.9    -      -       +      -
    420A  ILE*     3.2    36.3    +      -       +      +
    421A  ARG      3.1     5.4    +      -       -      +
    423A  GLU*     1.3    73.2    -      -       +      +
    425A  VAL*     1.3    59.7    +      -       -      +
    426A  LEU      3.0     1.6    -      -       -      -
    427A  LYS*     2.8    25.7    +      -       -      +
    428A  VAL*     2.9    19.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 425 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    413A  LEU*     3.9    10.3    -      -       +      -
    421A  ARG      2.9    22.8    +      -       -      +
    422A  GLU      4.0     3.6    -      -       -      +
    424A  ILE*     1.3    75.5    -      -       -      +
    426A  LEU*     1.3    62.0    +      -       -      +
    428A  VAL*     3.9     2.5    -      -       -      +
    429A  ALA*     3.4    22.5    +      -       +      +
    449A  LEU*     4.0    19.1    -      -       +      +
    453A  ALA*     3.2    40.8    -      -       +      +
    456A  TYR*     3.8    34.3    -      -       +      +
    457A  VAL*     4.1     8.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 426 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    422A  GLU      3.3    12.1    +      -       -      +
    423A  GLU*     3.4    12.1    -      -       -      +
    424A  ILE      3.0     0.6    -      -       -      -
    425A  VAL*     1.3    80.8    -      -       -      +
    427A  LYS*     1.3    67.2    +      -       +      +
    429A  ALA*     3.9     4.6    -      -       +      +
    430A  ILE*     3.1    47.5    +      -       +      +
    290M  ILE*     3.8    45.3    -      -       +      -
    292M  LEU*     5.0     6.1    -      -       +      -
    306M  VAL*     4.1    19.7    -      -       +      -
    308M  LYS*     5.3     7.0    -      -       -      -
    363M  GLU*     3.9    22.2    -      -       -      +
    365M  GLN*     5.2     1.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 427 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    390A  VAL*     3.8    23.0    -      -       +      +
    391A  ASP*     2.6    41.8    +      -       -      +
    394A  TYR*     3.4    37.0    -      -       +      +
    409A  MET*     4.4    12.6    -      -       +      -
    423A  GLU*     3.1    28.5    +      -       -      +
    424A  ILE*     2.8    11.8    +      -       -      +
    426A  LEU*     1.3    76.7    -      -       +      +
    428A  VAL*     1.3    58.4    +      -       -      +
    430A  ILE*     3.2     6.3    +      -       -      +
    431A  LEU*     2.8    35.2    +      -       -      +
    290M  ILE*     6.1     2.7    -      -       -      -
    292M  LEU*     3.9    26.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 428 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    406A  VAL*     4.4     9.6    -      -       +      -
    409A  MET*     3.8    33.7    -      -       +      -
    410A  LEU*     4.3    15.0    -      -       +      -
    413A  LEU*     5.0     0.7    -      -       +      -
    424A  ILE*     2.9    25.6    +      -       +      +
    425A  VAL*     3.9     6.1    -      -       -      +
    427A  LYS*     1.3    73.1    -      -       -      +
    429A  ALA*     1.3    70.4    +      -       -      +
    430A  ILE      2.8     1.7    +      -       -      -
    431A  LEU*     2.9     4.6    +      -       -      +
    432A  ALA*     2.7    27.2    +      -       +      +
    445A  THR*     3.9    24.9    -      -       +      -
    449A  LEU*     3.7    19.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 429 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    425A  VAL*     3.4    15.9    +      -       +      +
    426A  LEU*     3.9     7.6    -      -       +      +
    428A  VAL*     1.3    80.0    -      -       -      +
    430A  ILE*     1.3    65.4    +      -       +      +
    432A  ALA*     3.7     5.7    -      -       -      +
    433A  GLU*     3.0    37.4    +      -       -      +
    446A  ILE*     6.0     3.6    -      -       -      -
    449A  LEU*     3.9    10.6    -      -       +      +
    457A  VAL*     5.9     1.1    -      -       +      -
    461A  VAL*     4.1    21.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 430 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    394A  TYR*     4.4    13.2    -      -       +      +
    426A  LEU*     3.1    32.0    +      -       +      +
    427A  LYS*     3.2     8.6    +      -       -      +
    428A  VAL      2.8     5.1    +      -       -      -
    429A  ALA*     1.3    76.1    -      -       +      +
    431A  LEU*     1.3    64.7    +      -       +      +
    433A  GLU*     3.0    18.8    +      -       -      +
    434A  LYS*     3.1    13.2    +      -       +      +
    292M  LEU*     3.4    31.6    -      -       +      -
    302M  GLU*     6.0     0.4    -      -       -      +
    304M  LYS*     3.5    36.1    -      -       +      +
    306M  VAL*     5.0     2.9    -      -       +      -
    365M  GLN*     4.1    21.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 431 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    394A  TYR*     4.2    28.3    -      -       +      +
    397A  CYS*     3.3    40.2    -      -       +      +
    402A  ALA*     5.7     0.7    -      -       +      -
    405A  ILE*     4.2     7.4    -      -       +      -
    406A  VAL*     4.2    17.0    -      -       +      -
    409A  MET*     3.8    33.9    -      -       +      -
    427A  LYS      2.8    24.0    +      -       -      +
    428A  VAL*     2.9     2.4    +      -       -      +
    430A  ILE*     1.3    69.1    -      -       +      +
    432A  ALA*     1.3    70.5    +      -       -      +
    433A  GLU      3.1     0.7    +      -       -      -
    434A  LYS*     3.1    10.6    +      -       +      +
    435A  TYR*     3.3    30.4    +      -       +      +
    294M  ARG*     5.6     3.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 432 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    406A  VAL*     4.7     8.0    -      -       +      +
    428A  VAL*     2.7    22.4    +      -       +      +
    429A  ALA*     3.7     7.4    -      -       -      +
    431A  LEU*     1.3    76.8    -      -       -      +
    433A  GLU*     1.3    57.3    +      -       +      +
    436A  ALA*     3.0    35.4    +      -       +      +
    441A  TRP*     5.3     5.2    -      -       -      +
    442A  TYR*     4.6    20.2    -      -       +      -
    445A  THR*     4.7    22.4    -      -       +      +
    446A  ILE*     5.5     4.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 433 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    429A  ALA*     3.0    22.0    +      -       -      +
    430A  ILE*     3.0    11.6    +      -       +      +
    432A  ALA*     1.3    79.4    -      -       -      +
    434A  LYS*     1.3    60.5    +      -       -      +
    435A  TYR      3.5     0.2    +      -       -      -
    436A  ALA      5.1     0.5    +      -       -      +
    442A  TYR*     2.8    42.9    +      -       +      +
    446A  ILE*     5.0     0.9    -      -       -      +
    461A  VAL*     3.7    26.3    -      -       -      +
    464A  ARG*     5.0    12.5    +      -       -      -
    304M  LYS*     6.6     0.2    -      -       -      -
    365M  GLN*     4.3    15.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 434 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    430A  ILE*     3.1    15.0    +      -       +      +
    431A  LEU*     3.1     2.6    +      -       +      +
    433A  GLU*     1.3    77.2    -      -       -      +
    435A  TYR*     1.3   106.9    +      -       +      +
    294M  ARG*     4.2     1.7    -      -       -      +
    302M  GLU*     3.3    31.4    +      -       -      +
    304M  LYS*     4.3    20.4    -      -       -      +
    369M  GLU*     5.5     8.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 435 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    397A  CYS*     2.9    48.9    +      -       -      -
    398A  ASP*     3.6     8.1    -      -       +      +
    399A  ARG*     3.7    40.0    -      -       +      +
    402A  ALA*     3.8    19.6    -      -       +      +
    431A  LEU*     3.3    26.6    +      -       +      +
    433A  GLU      3.3     1.6    +      -       -      -
    434A  LYS*     1.3   118.3    +      -       +      +
    436A  ALA*     1.3    73.3    +      -       -      +
    437A  VAL*     3.0    11.3    +      -       -      +
    294M  ARG*     3.4    19.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 436 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    402A  ALA*     5.5     1.5    -      -       -      +
    432A  ALA*     3.0    22.2    +      -       -      +
    433A  GLU      5.1     0.2    +      -       -      -
    435A  TYR*     1.3    76.9    +      -       -      +
    437A  VAL*     1.3    63.8    +      -       -      +
    438A  ASP      3.3     4.6    +      -       -      +
    441A  TRP*     3.4    35.4    -      -       +      +
    442A  TYR*     4.3    19.7    -      -       +      +
----------------------------------------------------------
 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