Contacts of the helix formed by residues 435 - 441 (chain C) 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 ASP 435 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    434C  GLY*     1.3    69.9    -      -       -      -
    436C  GLY*     1.3    79.8    +      -       -      +
    439C  GLN*     3.1    24.4    +      -       -      +
    459C  VAL*     3.8     9.8    -      -       +      +
    460C  LEU      3.3    12.0    +      -       -      +
    461C  ASN*     3.4     8.2    -      -       -      +
    462C  ASN      3.2     5.5    +      -       -      -
    463C  GLU*     3.1    28.9    +      -       -      -
    464C  GLY      3.0     8.4    +      -       -      +
    481C  ILE*     3.7    13.3    -      -       +      +
    483C  LEU*     5.8     0.2    -      -       -      +
    486C  TRP*     3.3    33.1    -      -       +      +
    600C  TPP      3.0     1.9    +      -       -      -
    601C   MG      2.3    26.1    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 436 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    410C  ILE*     4.6     0.9    -      -       -      -
    435C  ASP*     1.3    91.3    +      -       -      +
    437C  ALA*     1.3    59.4    +      -       -      +
    439C  GLN*     3.3    11.4    +      -       -      +
    440C  LEU*     3.0    21.2    -      -       -      +
    465C  TYR*     3.7    25.7    +      -       -      -
    481C  ILE*     4.0     9.0    -      -       -      -
    600C  TPP      3.1    12.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 437 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    382C  ASP*     3.8    28.7    -      -       +      +
    383C  GLN      5.1     0.2    -      -       -      +
    410C  ILE*     4.0    11.2    -      -       +      +
    411C  GLY*     3.4    19.6    -      -       -      +
    433C  THR*     3.7    14.6    -      -       -      +
    434C  GLY      4.2     0.4    -      -       -      +
    436C  GLY*     1.3    76.5    -      -       -      +
    438C  ALA*     1.3    62.2    +      -       -      +
    439C  GLN      3.0     1.2    +      -       -      -
    440C  LEU*     3.1    22.8    +      -       -      +
    441C  THR      4.1     0.3    +      -       -      -
    600C  TPP      2.9    19.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 438 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    414C  LEU*     4.0    18.2    -      -       +      +
    433C  THR*     3.5    19.0    +      -       +      +
    434C  GLY      3.1    15.5    +      -       -      +
    436C  GLY      3.4     0.4    -      -       -      -
    437C  ALA*     1.3    78.3    -      -       -      +
    439C  GLN*     1.3    58.4    +      -       -      +
    441C  THR*     3.6     3.2    +      -       -      -
    442C  ILE*     3.0    33.2    +      -       +      +
    459C  VAL*     5.0     2.9    -      -       +      -
    486C  TRP*     3.6    26.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 439 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    435C  ASP      3.1    19.0    +      -       -      +
    436C  GLY      3.5     7.4    -      -       -      +
    437C  ALA      3.0     1.0    +      -       -      -
    438C  ALA*     1.3    78.9    -      -       -      +
    440C  LEU*     1.3    58.8    +      -       +      +
    441C  THR      3.4     0.2    +      -       -      -
    442C  ILE      3.8     1.4    +      -       -      -
    465C  TYR*     5.2     1.4    +      -       -      -
    481C  ILE*     3.7    27.3    -      -       -      +
    482C  ALA*     3.0    29.9    +      -       -      +
    484C  TRP*     3.2    52.0    -      -       +      +
    486C  TRP*     4.0     5.2    -      -       +      -
     50D  ALA*     4.4    17.4    -      -       +      +
    443D  GLN*     2.9    32.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 440 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51C  ASN*     5.2     1.6    +      -       -      -
     53C  LEU*     5.2     5.0    -      -       +      +
     54C  ASN*     4.5     2.6    +      -       -      -
    410C  ILE*     3.4    48.9    -      -       +      +
    411C  GLY*     4.3     2.0    -      -       -      -
    436C  GLY      3.0    28.7    -      -       -      +
    437C  ALA      3.1    10.7    +      -       -      +
    439C  GLN*     1.3    76.9    -      -       -      +
    441C  THR*     1.3    64.5    +      -       +      +
    443C  GLN*     3.8     1.0    -      -       -      +
    465C  TYR*     5.7     2.7    -      -       -      +
    600C  TPP      4.0     4.5    -      -       +      +
     26D  VAL*     5.6     2.7    -      -       +      -
     50D  ALA      3.0    25.1    -      -       -      +
     51D  ASN*     3.3    20.9    +      -       +      +
     52D  GLU*     3.6    24.2    -      -       -      +
    443D  GLN*     3.1    13.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 441 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53C  LEU*     4.5     2.7    -      -       +      -
     54C  ASN*     3.3    27.3    -      -       -      +
     57C  TYR*     3.7    15.5    -      -       +      -
    411C  GLY*     2.8    40.2    +      -       -      +
    414C  LEU*     3.4    22.2    -      -       -      +
    415C  ALA*     4.5     4.7    -      -       -      -
    437C  ALA      4.1     0.8    +      -       -      -
    438C  ALA      3.6     2.7    +      -       -      -
    440C  LEU*     1.3    82.1    -      -       +      +
    442C  ILE*     1.3    66.1    +      -       -      +
    443C  GLN*     3.1     9.4    -      -       -      -
    444C  GLU*     3.1    18.0    +      -       -      +
----------------------------------------------------------
 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