Contacts of the strand formed by residues 473 - 480 (chain A) in PDB entry 2VKT


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 PHE 473 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    454A  ARG*     3.4    52.5    -      -       +      -
    455A  THR      3.3    14.6    -      -       -      +
    456A  VAL*     4.1    16.4    -      -       +      -
    457A  PHE*     4.2     4.3    -      -       -      -
    471A  VAL*     3.2    26.8    +      -       +      +
    472A  PRO*     1.3    98.7    -      -       +      +
    474A  ILE*     1.3    71.4    +      -       -      +
    475A  GLU*     3.9    16.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 474 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    453A  ARG      3.6     0.2    -      -       -      +
    454A  ARG*     3.4     5.7    -      -       -      +
    455A  THR*     2.9    47.1    +      -       +      +
    457A  PHE*     4.1    12.3    -      -       +      -
    468A  TYR*     3.5    56.1    -      -       +      +
    471A  VAL*     5.1     4.9    -      -       +      -
    473A  PHE*     1.3    78.7    -      -       -      +
    475A  GLU*     1.3    65.7    +      -       -      +
    476A  GLU*     4.3     6.1    -      -       +      -
    511A  ILE*     4.3    10.3    -      -       +      -
    525A  PHE*     3.6    33.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 475 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    452A  ILE*     4.1    24.5    -      -       +      +
    453A  ARG      3.3    11.4    -      -       -      +
    454A  ARG*     3.9    27.0    +      -       -      -
    473A  PHE*     3.9    15.7    -      -       +      -
    474A  ILE*     1.3    80.5    -      -       -      +
    476A  GLU*     1.3    71.4    +      -       -      +
    530A  SER*     5.1     2.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 476 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    452A  ILE*     3.4     8.1    -      -       -      -
    453A  ARG      3.0    28.5    +      -       -      -
    468A  TYR*     2.7    33.3    +      -       -      +
    474A  ILE*     4.3    10.7    -      -       +      -
    475A  GLU*     1.3    81.0    -      -       -      +
    477A  ARG*     1.3    60.8    +      -       -      +
    478A  HIS*     3.1     8.6    +      -       -      +
    525A  PHE*     3.6    37.9    -      -       +      -
    526A  HIS      4.7     1.5    -      -       -      +
    527A  PRO*     4.0    18.7    -      -       -      +
    529A  PHE*     6.1     0.3    -      -       -      +
    530A  SER*     2.8    31.5    +      -       -      -
    537A  SER*     4.8     1.9    +      -       -      -
    538A  PRO*     5.1     1.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 477 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    451A  GLY*     3.6    18.6    -      -       -      +
    452A  ILE*     4.2    19.4    -      -       +      +
    476A  GLU*     1.3    77.0    +      -       -      +
    478A  HIS*     1.3    68.5    -      -       -      +
    525A  PHE*     3.3     2.8    -      -       -      +
    526A  HIS*     2.9    32.4    +      -       +      +
    529A  PHE*     3.5    72.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 478 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    449A  ARG*     3.4    34.1    +      -       +      +
    450A  LEU*     3.4    16.8    -      -       -      +
    451A  GLY      3.1    13.6    +      -       -      +
    453A  ARG*     3.6    27.3    +      -       +      +
    455A  THR*     4.0     7.7    +      -       -      -
    476A  GLU*     3.1    29.2    +      -       -      +
    477A  ARG*     1.3    81.3    -      -       -      +
    479A  ARG*     1.3    64.2    +      -       -      +
    480A  HIS*     3.0    23.2    +      -       +      +
    510A  GLU*     3.4    30.7    -      -       -      -
    525A  PHE*     3.7    22.3    -      +       +      +
    526A  HIS*     5.0     0.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 479 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    373A  PHE*     3.3    53.9    -      -       -      -
    399A  CYS*     3.9    13.3    -      -       -      -
    448A  MET*     3.0    42.3    -      -       +      +
    449A  ARG      3.4     4.0    -      -       -      -
    450A  LEU*     4.1    10.6    -      -       +      +
    478A  HIS*     1.3    76.5    -      -       -      +
    480A  HIS*     1.3    67.5    +      -       -      +
    526A  HIS*     4.3    16.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 480 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    399A  CYS*     4.0    15.3    -      -       -      -
    403A  GLN*     4.8     3.1    -      -       -      +
    448A  MET*     3.4    10.1    -      -       -      +
    449A  ARG*     3.0    43.8    +      -       -      +
    478A  HIS*     3.0    31.6    +      -       +      -
    479A  ARG*     1.3    84.9    -      -       -      +
    481A  ARG*     1.3    61.6    +      -       -      +
    482A  PHE      4.7     2.0    -      -       -      +
    483A  GLU*     2.5    37.9    +      -       -      +
    508A  ARG*     4.9     0.2    +      -       -      -
    510A  GLU*     3.3    18.9    +      -       -      -
    524A  GLN*     3.2    34.6    +      -       -      +
----------------------------------------------------------
 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