Contacts of the helix formed by residues 47 - 54 (chain F) in PDB entry 1VYH


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 47 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46F  GLY*     1.3    72.6    -      -       -      +
     48F  SER*     1.3    64.3    +      -       -      +
     49F  MET*     2.7    44.9    +      -       -      +
     50F  VAL*     3.0    14.1    +      -       -      +
     51F  GLN*     3.0    11.6    +      -       -      +
     73F  ILE      3.1    15.3    -      -       -      +
     76F  ASP*     3.6    24.6    -      -       +      +
    101F  TRP*     3.1    17.2    +      -       -      +
    102F  VAL*     3.4    16.1    -      -       +      +
    103F  GLY      3.6     8.0    +      -       -      -
    104F  THR*     3.8    10.3    -      -       -      +
    105F  ASN*     3.9    14.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 48 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47F  ASP*     1.3    75.0    -      -       -      +
     49F  MET*     1.3    57.5    +      -       -      +
     51F  GLN*     4.1     6.7    -      -       -      -
     52F  LEU*     2.8    38.0    +      -       -      +
     73F  ILE      3.4     2.8    +      -       -      -
     74F  GLY*     3.2    13.8    -      -       -      -
     75F  GLY      2.9    22.3    +      -       -      -
    105F  ASN*     3.9     9.5    +      -       -      -
    196F  HIS*     3.4    29.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 49 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47F  ASP*     2.7    27.2    +      -       -      +
     48F  SER*     1.3    72.3    -      -       -      +
     50F  VAL*     1.3    58.6    +      -       -      +
     53F  MET*     3.7     1.0    +      -       -      +
    101F  TRP*     3.6    38.6    -      -       +      +
    104F  THR*     4.5    17.0    -      -       +      -
    140F  LEU*     3.7    34.1    -      -       +      +
    195F  LEU*     3.8    28.0    -      -       -      +
    196F  HIS*     4.6    15.0    -      -       -      -
    197F  LEU*     4.2    11.2    -      -       +      -
    202F  TYR*     2.5    36.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 50 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44F  PHE*     3.5    46.2    -      -       +      +
     45F  VAL      3.6     6.5    -      -       -      +
     46F  GLY*     3.5    23.1    -      -       -      -
     47F  ASP      3.0    13.6    +      -       -      +
     49F  MET*     1.3    74.1    -      -       -      +
     51F  GLN*     1.3    66.3    +      -       -      +
     53F  MET*     3.1    21.2    -      -       -      +
     70F  ASN*     3.3    16.8    +      -       -      +
     72F  GLY*     4.3     5.6    -      -       -      -
     99F  VAL*     5.9     1.1    -      -       +      -
    101F  TRP*     3.6    26.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 51 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    192E  PHE*     4.2    34.3    +      -       +      +
    193E  ASP*     4.3     9.4    -      -       -      +
     27F  GLN*     2.7    29.1    +      -       -      +
     30F  ARG*     5.7     0.6    -      -       -      +
     31F  PHE*     5.4     1.4    -      -       -      -
     47F  ASP      3.0     7.7    +      -       -      +
     48F  SER*     3.2     7.1    +      -       -      +
     50F  VAL*     1.3    82.0    -      -       -      +
     52F  LEU*     1.3    64.8    +      -       +      +
     53F  MET      3.3     0.9    +      -       -      -
     54F  GLN*     3.4    19.6    +      -       -      +
     55F  GLN*     4.2     5.2    -      -       -      +
     70F  ASN*     3.6    11.2    -      -       -      +
     72F  GLY*     2.9    29.9    +      -       -      +
     73F  ILE*     4.1     0.6    -      -       -      +
     74F  GLY*     2.9    25.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 52 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52E  LEU*     5.2    14.4    -      -       +      -
    192E  PHE*     4.0    30.5    -      -       +      -
     48F  SER*     2.8    23.1    +      -       -      +
     51F  GLN*     1.3    74.1    -      -       +      +
     53F  MET*     1.3    65.9    +      -       -      +
     54F  GLN      3.1     2.9    -      -       -      -
     55F  GLN*     3.0    22.1    +      -       +      +
     56F  TYR*     3.4    37.2    -      -       +      +
    192F  PHE*     4.7    15.3    -      -       +      -
    196F  HIS*     4.5    21.3    -      -       +      -
    197F  LEU      4.7     3.4    -      -       -      +
    202F  TYR*     3.4    13.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 53 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44F  PHE*     3.9    21.3    -      -       +      -
     49F  MET      3.9     1.6    -      -       -      +
     50F  VAL*     3.1    16.5    +      -       -      +
     52F  LEU*     1.3    77.4    -      -       -      +
     54F  GLN*     1.3    63.3    +      -       -      +
     55F  GLN      3.2     0.9    +      -       -      -
     56F  TYR*     3.3    15.4    +      -       -      +
     58F  ILE*     4.9     3.0    -      -       +      +
     59F  TRP*     3.4    26.4    +      -       +      +
     63F  PHE*     3.5    25.4    -      -       +      -
    101F  TRP*     4.6     7.9    -      -       +      -
    202F  TYR*     3.5    36.5    +      -       +      -
    205F  ILE*     4.5    10.5    -      -       +      -
    206F  CYS*     3.1    31.2    -      -       -      -
    209F  LEU*     4.5     7.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 54 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30F  ARG*     5.2     8.7    +      -       -      +
     50F  VAL      4.0     0.6    +      -       -      -
     51F  GLN      3.4    12.5    +      -       -      +
     52F  LEU      3.1     0.6    -      -       -      -
     53F  MET*     1.3    81.2    -      -       -      +
     55F  GLN*     1.3    72.2    +      -       -      +
     56F  TYR      3.2     1.9    +      -       -      +
     59F  TRP*     3.8    47.6    -      -       +      +
     68F  ALA      5.8     0.8    +      -       -      -
     70F  ASN*     3.5    35.7    -      -       -      +
----------------------------------------------------------
 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