Contacts of the helix formed by residues 443 - 451 (chain B) in PDB entry 1OVM


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 GLN 443 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    439A  GLN      3.1    26.8    +      -       -      +
    440A  LEU      3.1    13.9    +      -       -      -
    442A  ILE*     4.0     5.3    -      -       +      +
    443A  GLN*     2.9    42.8    +      -       -      +
    484A  TRP*     3.7    22.7    -      -       +      -
     50B  ALA*     3.3    29.9    -      -       +      +
     51B  ASN*     3.5    11.9    -      -       -      +
     54B  ASN*     3.5     7.6    -      -       -      +
    440B  LEU      3.8     0.5    -      -       -      +
    441B  THR*     3.0    16.6    -      -       -      -
    442B  ILE*     1.3    76.7    -      -       -      +
    444B  GLU*     1.3    57.0    +      -       -      +
    445B  LEU      3.0     0.7    -      -       -      -
    446B  GLY*     3.0    20.2    +      -       -      -
    447B  SER      3.8     2.1    +      -       -      -
    493B  LEU*     4.5     4.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 444 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49B  CYS*     3.2    23.9    -      -       -      +
     50B  ALA*     3.2    18.1    +      -       -      +
     54B  ASN*     2.8    45.6    -      -       +      +
    414B  LEU*     5.1     3.1    -      -       +      +
    415B  ALA*     4.3    19.5    -      -       +      +
    418B  PHE*     4.0    19.4    -      -       +      -
    441B  THR      3.0    12.3    +      -       -      +
    442B  ILE      2.8     1.8    +      -       -      -
    443B  GLN*     1.3    74.3    -      -       -      +
    445B  LEU*     1.3    64.6    +      -       -      +
    446B  GLY      3.0     2.0    -      -       -      -
    447B  SER*     2.7    37.5    +      -       -      -
    448B  MET*     3.1    16.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 445 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    414B  LEU*     4.8     9.4    -      -       +      +
    441B  THR      4.4     0.2    +      -       -      -
    442B  ILE*     2.7    26.7    +      -       +      +
    444B  GLU*     1.3    78.4    -      -       -      +
    446B  GLY*     1.3    59.8    +      -       -      +
    448B  MET*     3.3    15.9    +      -       -      -
    449B  LEU*     3.1    28.6    +      -       +      +
    457B  ILE*     3.7    30.3    -      -       +      -
    489B  ILE*     3.5    32.5    -      -       +      -
    490B  PRO*     4.4    13.5    -      -       +      -
    493B  LEU*     4.1     3.4    -      -       +      -
    523B  LEU*     4.2    14.4    -      -       +      -
    525B  LEU*     4.5     9.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 446 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    482A  ALA*     3.8    11.3    -      -       -      +
    484A  TRP*     4.2     6.5    -      -       -      -
    443B  GLN      3.0    10.8    +      -       -      -
    444B  GLU      3.0     1.0    -      -       -      -
    445B  LEU*     1.3    80.4    -      -       -      +
    447B  SER*     1.3    56.6    +      -       -      +
    449B  LEU*     3.5     4.2    +      -       -      +
    450B  ARG*     2.9    27.7    +      -       -      +
    493B  LEU*     3.9    31.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 447 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    482A  ALA*     5.1     1.1    -      -       -      -
     49B  CYS*     4.2     2.3    -      -       -      -
     50B  ALA*     4.1     8.5    +      -       -      +
    418B  PHE*     3.5    23.2    -      -       -      -
    443B  GLN      3.8     2.6    +      -       -      -
    444B  GLU*     2.7    39.3    +      -       -      -
    446B  GLY*     1.3    76.2    -      -       -      +
    448B  MET*     1.3    65.3    +      -       -      +
    450B  ARG*     3.7    18.4    +      -       -      +
    451B  ASP*     2.9    28.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 448 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    414B  LEU*     3.7    32.3    -      -       +      +
    417B  ALA*     3.8    11.7    -      -       +      -
    418B  PHE*     3.8    23.3    -      -       +      +
    431B  VAL*     4.8     1.1    -      -       +      -
    444B  GLU      3.1    10.4    +      -       -      +
    445B  LEU*     3.5    33.0    -      -       -      +
    446B  GLY      3.3     0.2    -      -       -      -
    447B  SER*     1.3    77.9    -      -       -      +
    449B  LEU*     1.3    64.3    +      -       -      +
    451B  ASP      3.4     0.9    +      -       -      -
    452B  LYS      3.0     4.7    +      -       -      -
    453B  GLN*     3.0    51.1    +      -       +      +
    455B  PRO*     3.9    21.3    -      -       +      -
    457B  ILE*     4.1    11.2    -      -       +      -
    523B  LEU*     4.1    11.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 449 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    445B  LEU*     3.1    25.4    +      -       +      +
    446B  GLY*     3.6     7.9    -      -       -      +
    447B  SER      3.2     0.2    -      -       -      -
    448B  MET*     1.3    77.2    -      -       -      +
    450B  ARG*     1.3    66.7    +      -       -      +
    452B  LYS*     2.8    20.9    +      -       -      +
    453B  GLN      5.4     0.7    -      -       -      +
    490B  PRO*     3.9    34.5    -      -       +      +
    493B  LEU*     4.3     7.4    -      -       +      +
    494B  SER*     4.1    24.9    -      -       -      +
    497B  PRO*     4.7     6.3    -      -       +      -
    498B  GLN*     4.9    10.0    -      -       +      +
    499B  SER*     4.7     9.6    -      -       -      -
    523B  LEU*     3.7    36.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 450 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    480A  ASP      5.2     2.6    +      -       -      -
    481A  ILE*     4.7     7.4    -      -       -      +
    482A  ALA*     3.9    36.2    -      -       +      +
     47B  VAL*     4.3     5.7    -      -       -      +
     48B  GLY*     2.9    36.3    +      -       -      +
     49B  CYS      5.9     0.6    -      -       -      -
    418B  PHE*     4.0    10.1    -      -       -      -
    446B  GLY      2.9    18.0    +      -       -      +
    447B  SER*     3.3    10.6    +      -       -      +
    449B  LEU*     1.3    77.0    -      -       -      +
    451B  ASP*     1.3    89.7    +      -       -      +
    452B  LYS*     3.4    11.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 451 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47B  VAL*     4.1     6.7    -      -       -      +
    418B  PHE*     3.2    29.6    -      -       +      -
    422B  THR*     5.2     0.7    +      -       -      -
    447B  SER      2.9    14.2    +      -       -      +
    448B  MET      4.1     2.0    -      -       -      +
    450B  ARG*     1.3   100.6    +      -       -      +
    452B  LYS*     1.3    70.8    +      -       -      +
    453B  GLN*     3.3    16.2    +      -       +      +
----------------------------------------------------------
 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