Contacts of the helix formed by residues 465 - 472 (chain D) 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 TYR 465 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26C  VAL*     4.8     4.3    -      -       -      +
     27C  PRO*     3.3    39.5    -      -       +      +
     49C  CYS      4.2    14.6    +      -       -      -
     50C  ALA*     5.3     2.4    +      -       -      -
    410D  ILE*     5.0     4.0    -      -       +      +
    436D  GLY*     3.8    17.6    +      -       -      -
    439D  GLN*     5.2     1.7    +      -       -      -
    440D  LEU*     5.7     1.9    -      -       -      +
    464D  GLY*     1.3    71.8    -      -       -      -
    466D  THR*     1.3    65.7    +      -       -      +
    467D  VAL      3.2     2.5    -      -       -      -
    468D  GLU*     3.1     9.6    +      -       +      +
    469D  ARG*     3.0    24.3    +      -       -      +
    478D  TYR      3.8     6.7    -      -       -      -
    479D  ASN*     3.2    25.9    +      -       -      +
    480D  ASP      4.4     2.2    +      -       -      -
    481D  ILE*     3.3    28.8    -      -       +      +
    600D  TPP      3.3    52.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 466 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    385D  THR*     3.4    13.0    -      -       -      +
    462D  ASN*     3.0    42.3    +      -       +      +
    464D  GLY      4.1     1.1    -      -       -      +
    465D  TYR*     1.3    72.6    -      -       -      +
    467D  VAL*     1.3    57.5    +      -       -      -
    469D  ARG*     3.2    12.1    +      -       -      +
    470D  ALA*     2.8    29.5    +      -       -      +
    531D  PRO      4.4     0.9    -      -       -      +
    532D  LYS      2.8    28.3    -      -       -      +
    533D  ALA*     5.0     0.2    -      -       -      -
    534D  ASP      4.1     1.9    +      -       -      +
    535D  ILE*     3.1    25.0    -      -       -      +
    600D  TPP      2.7    15.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 467 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    384D  GLY*     3.3    24.7    -      -       -      -
    388D  PHE*     4.9     1.3    -      -       +      -
    465D  TYR      4.5     0.2    -      -       -      -
    466D  THR*     1.3    76.9    +      -       -      +
    468D  GLU*     1.3    67.2    +      -       -      +
    470D  ALA*     3.3     8.7    +      -       -      +
    471D  ILE*     3.1    29.5    +      -       +      +
    539D  LEU*     3.1    42.2    -      -       +      -
    543D  THR*     3.7     0.7    +      -       -      -
    600D  TPP      3.2    51.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 468 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27C  PRO*     5.1     1.1    -      -       +      -
     28C  GLY*     3.2    16.8    +      -       -      -
     29C  ASP*     3.1    26.1    +      -       -      +
     32C  LEU*     3.7    12.2    -      -       +      +
    465D  TYR*     3.1    22.6    +      -       +      +
    467D  VAL*     1.3    75.8    -      -       -      +
    469D  ARG*     1.3    60.4    +      -       -      +
    471D  ILE*     2.9    22.2    +      -       -      +
    472D  HIS      2.9    32.3    +      -       -      +
    479D  ASN*     3.1    22.4    -      -       -      +
    600D  TPP      3.7    38.0    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 469 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    462D  ASN      4.1     3.4    +      -       -      -
    463D  GLU      3.3    22.6    +      -       -      -
    464D  GLY*     4.1     6.5    -      -       -      -
    465D  TYR      3.0    20.1    +      -       -      +
    466D  THR*     3.4    12.2    -      -       -      +
    468D  GLU*     1.3    76.3    -      -       -      +
    470D  ALA*     1.3    61.4    +      -       -      +
    471D  ILE      3.4     0.7    +      -       -      -
    472D  HIS*     3.5     7.7    +      -       -      -
    474D  ALA*     3.1    54.7    +      -       +      +
    476D  GLN      5.1     0.4    +      -       -      -
    479D  ASN*     3.2    31.9    +      -       +      +
    480D  ASP*     2.3    32.5    +      -       -      -
    532D  LYS*     3.0    49.9    +      -       -      +
    533D  ALA*     6.0     1.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 470 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    466D  THR      2.8    16.3    +      -       -      +
    467D  VAL*     3.4     7.2    -      -       -      +
    468D  GLU      3.1     0.2    -      -       -      -
    469D  ARG*     1.3    78.7    -      -       -      +
    471D  ILE*     1.3    58.5    +      -       -      +
    535D  ILE*     4.2    20.0    -      -       +      -
    543D  THR*     3.1    37.7    -      -       +      +
    547D  GLU*     5.7     0.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 471 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29C  ASP*     4.5    10.8    -      -       +      +
     32C  LEU*     3.9    14.6    -      -       +      -
    467D  VAL*     3.1    13.4    +      -       +      +
    468D  GLU*     2.9    30.7    +      -       -      +
    469D  ARG      4.2     0.2    -      -       -      -
    470D  ALA*     1.3    80.3    -      -       -      +
    472D  HIS*     1.3    52.7    +      -       +      +
    543D  THR*     3.5    20.0    -      -       -      +
    546D  LEU*     3.4    32.3    -      -       +      -
    547D  GLU*     2.6    49.0    -      -       +      +
    550D  ASN*     4.0    21.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 472 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32C  LEU*     4.1    23.1    -      -       +      +
     33C  GLN*     3.9    22.6    +      -       +      -
     36C  ASP*     2.5    40.6    +      -       -      -
    468D  GLU      2.9    18.1    +      -       -      +
    469D  ARG      3.5     3.6    +      -       -      -
    471D  ILE*     1.3    81.8    -      -       +      +
    473D  GLY*     1.3    80.1    +      -       -      +
    474D  ALA      3.5     2.0    -      -       -      -
    478D  TYR*     3.3    13.6    +      -       -      -
    479D  ASN*     3.3     9.0    +      -       -      -
    547D  GLU*     2.9    33.0    -      -       -      +
    550D  ASN*     5.5     0.2    -      -       -      +
----------------------------------------------------------
 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