Contacts of the helix formed by residues 478 - 486 (chain A) in PDB entry 2VGB


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 GLY 478 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    475A  THR*     2.8    19.5    +      -       -      +
    476A  THR      3.6     0.8    -      -       -      -
    477A  THR*     1.3    76.5    -      -       -      +
    479A  ARG*     1.3    64.9    +      -       -      +
    480A  SER      3.3     2.2    -      -       -      -
    481A  ALA*     2.9     7.1    +      -       -      +
    482A  GLN*     2.9    23.1    +      -       -      +
    502A  ALA*     4.3     4.1    -      -       -      +
    506A  VAL*     3.8    26.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 479 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    450A  ASP*     5.0     6.6    +      -       -      -
    452A  THR*     5.6     2.2    -      -       +      -
    453A  GLU*     5.6     2.0    +      -       -      +
    475A  THR*     3.7     0.6    +      -       -      -
    477A  THR*     3.2    19.1    +      -       -      +
    478A  GLY*     1.3    76.7    -      -       -      +
    480A  SER*     1.3    58.0    +      -       -      +
    482A  GLN*     3.1    31.1    +      -       -      +
    483A  LEU*     2.9    64.3    +      -       +      +
    580A  FBP      4.1     8.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 480 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    452A  THR*     3.6    22.5    -      -       -      +
    456A  ALA*     5.3     1.0    -      -       -      +
    473A  VAL*     4.2    13.9    -      -       -      -
    474A  LEU      3.8     6.1    +      -       -      -
    475A  THR*     3.9     0.9    +      -       -      -
    479A  ARG*     1.3    73.5    -      -       -      +
    481A  ALA*     1.3    65.6    +      -       -      +
    483A  LEU*     3.5     3.1    +      -       -      +
    484A  LEU*     3.3    24.9    +      -       -      +
    555A  VAL*     5.4     0.2    -      -       -      -
    565A  THR*     3.0    27.9    +      -       -      -
    580A  FBP      2.3    34.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 481 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    473A  VAL*     4.3     6.0    -      -       +      +
    475A  THR*     4.2    12.0    +      -       +      -
    478A  GLY      2.9    11.2    +      -       -      +
    480A  SER*     1.3    75.9    +      -       -      +
    482A  GLN*     1.3    62.8    +      -       -      +
    484A  LEU*     3.1     6.5    +      -       -      +
    485A  SER*     3.1    20.8    +      -       -      -
    493A  VAL*     4.2    10.4    -      -       +      +
    495A  ALA*     4.0    27.1    -      -       +      -
    506A  VAL*     4.4     5.2    -      -       +      -
    512A  VAL*     4.0    21.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 482 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    309A  LYS*     5.0     9.5    +      -       -      -
    331A  ASP      5.1     1.0    +      -       -      -
    364A  GLY      3.2    26.5    +      -       -      +
    365A  LYS*     4.4     3.4    -      -       -      +
    366A  PRO*     4.0    19.4    -      -       -      +
    478A  GLY      2.9    11.6    +      -       -      +
    479A  ARG*     3.4    32.8    +      -       -      +
    481A  ALA*     1.3    77.1    -      -       -      +
    483A  LEU*     1.3    67.0    +      -       +      +
    485A  SER*     3.0     4.9    +      -       -      +
    486A  ARG*     2.8    24.1    +      -       +      +
    506A  VAL*     5.6     1.0    -      -       +      +
    509A  CYS*     3.9    28.9    -      -       -      -
    512A  VAL*     5.0     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 483 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    450A  ASP*     4.0     6.1    -      -       -      +
    452A  THR*     3.5    31.4    -      -       +      +
    453A  GLU*     3.6    39.9    -      -       +      +
    456A  ALA*     3.9    14.4    -      -       +      -
    479A  ARG*     2.9    56.3    +      -       +      +
    480A  SER*     4.2     3.6    -      -       -      +
    481A  ALA      3.3     0.4    -      -       -      -
    482A  GLN*     1.3    77.8    -      -       +      +
    484A  LEU*     1.3    62.2    +      -       -      +
    486A  ARG*     3.1    26.0    -      -       +      +
    487A  TYR*     3.5    14.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 484 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    456A  ALA*     3.6    33.0    -      -       +      +
    459A  ALA*     3.7    19.5    -      -       +      -
    460A  VAL*     3.8    12.6    -      -       +      +
    471A  ILE*     3.7    21.1    -      -       +      -
    473A  VAL*     3.3    40.8    -      -       +      -
    480A  SER      3.3    13.4    +      -       -      +
    481A  ALA      3.1     6.6    +      -       -      +
    482A  GLN      3.1     0.6    -      -       -      -
    483A  LEU*     1.3    76.8    -      -       -      +
    485A  SER*     1.3    63.8    +      -       -      +
    487A  TYR*     3.0    14.0    +      -       -      -
    489A  PRO*     3.3    15.2    -      -       +      +
    493A  VAL*     4.0    14.4    -      -       +      -
    555A  VAL*     4.5     5.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 485 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    400A  ASP*     4.8     2.4    +      -       -      -
    481A  ALA      3.1     4.6    +      -       -      -
    482A  GLN*     3.0     7.2    +      -       -      +
    484A  LEU*     1.3    76.2    -      -       -      +
    486A  ARG*     1.3    57.1    +      -       -      +
    488A  ARG*     2.5    39.1    +      -       -      -
    489A  PRO*     3.8    10.1    -      -       -      -
    493A  VAL*     4.5     4.4    -      -       -      +
    509A  CYS*     3.5    19.6    -      -       -      +
    510A  ARG      2.8    31.6    +      -       -      -
    512A  VAL*     4.0    16.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 486 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    361A  ASN      3.8     9.0    +      -       -      +
    362A  LEU*     2.7    34.3    +      -       -      +
    363A  ALA      3.7    12.9    +      -       -      -
    364A  GLY*     3.6    28.7    -      -       -      +
    441A  LEU*     3.9    25.7    +      -       -      +
    445A  ALA*     3.9    26.8    -      -       -      +
    446A  PRO*     6.0     1.6    -      -       -      +
    453A  GLU*     4.3    14.4    +      -       -      -
    482A  GLN*     2.8    13.0    +      -       +      +
    483A  LEU*     3.1    28.7    -      -       +      +
    485A  SER*     1.3    76.3    +      -       -      +
    487A  TYR*     1.3    82.1    +      -       -      -
    488A  ARG*     3.6     6.9    +      -       -      +
----------------------------------------------------------
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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