Contacts of the helix formed by residues 443 - 451 (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 GLN 443 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50C  ALA*     3.3    26.8    -      -       +      +
     51C  ASN*     3.7    10.8    -      -       -      +
     54C  ASN*     3.6     6.5    -      -       -      +
    440C  LEU      3.8     0.3    -      -       -      +
    441C  THR*     3.1    14.6    -      -       -      -
    442C  ILE*     1.3    75.8    -      -       -      +
    444C  GLU*     1.3    60.5    +      -       -      +
    445C  LEU      3.0     1.1    -      -       -      -
    446C  GLY*     3.0    16.1    +      -       -      -
    447C  SER*     3.8     2.4    +      -       -      -
    493C  LEU*     4.6     4.0    -      -       -      -
    439D  GLN      3.1    24.3    +      -       -      +
    440D  LEU      3.0    20.4    +      -       -      -
    441D  THR      4.0     0.2    -      -       -      +
    442D  ILE*     4.0     4.9    -      -       +      +
    443D  GLN*     2.8    43.8    +      -       -      +
    484D  TRP*     3.7    22.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 444 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49C  CYS*     3.2    23.7    -      -       -      +
     50C  ALA*     3.2    18.9    +      -       -      +
     54C  ASN*     2.8    43.9    -      -       +      +
    414C  LEU*     5.1     3.4    -      -       +      +
    415C  ALA*     4.3    20.2    -      -       +      +
    418C  PHE*     4.0    19.8    -      -       +      -
    441C  THR      3.1    13.2    +      -       -      +
    442C  ILE      2.8     1.8    +      -       -      -
    443C  GLN*     1.3    74.9    -      -       -      +
    445C  LEU*     1.3    63.8    +      -       -      +
    446C  GLY      3.0     2.2    -      -       -      -
    447C  SER*     2.9    37.0    +      -       -      +
    448C  MET*     3.1    17.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 445 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    414C  LEU*     4.9     8.5    -      -       +      +
    441C  THR      4.4     0.4    +      -       -      -
    442C  ILE*     2.8    26.4    +      -       +      +
    444C  GLU*     1.3    78.5    -      -       -      +
    446C  GLY*     1.3    61.5    +      -       -      +
    448C  MET*     3.3    14.1    +      -       -      +
    449C  LEU*     3.1    29.8    +      -       +      +
    457C  ILE*     3.6    31.0    -      -       +      -
    489C  ILE*     3.4    33.4    -      -       +      -
    490C  PRO*     4.4    13.9    -      -       +      -
    493C  LEU*     4.1     3.4    -      -       +      -
    523C  LEU*     4.3    15.3    -      -       +      -
    525C  LEU*     4.5     9.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 446 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    443C  GLN      3.0    10.6    +      -       -      -
    444C  GLU      3.0     0.8    -      -       -      -
    445C  LEU*     1.3    80.6    -      -       -      +
    447C  SER*     1.3    56.1    +      -       -      +
    449C  LEU*     3.5     3.0    +      -       -      +
    450C  ARG*     2.9    28.1    +      -       -      +
    493C  LEU*     3.9    31.6    -      -       -      +
    482D  ALA*     3.6    10.9    -      -       -      +
    484D  TRP*     4.1     6.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 447 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48C  GLY      4.2     2.4    +      -       -      -
     49C  CYS      4.6     0.2    -      -       -      -
     50C  ALA*     4.1     8.7    +      -       -      +
    418C  PHE*     3.6    22.3    -      -       -      -
    443C  GLN      3.8     2.5    +      -       -      -
    444C  GLU*     2.9    37.5    +      -       -      -
    446C  GLY*     1.3    76.5    -      -       -      +
    448C  MET*     1.3    65.3    -      -       -      +
    450C  ARG*     3.6    19.8    +      -       -      +
    451C  ASP*     2.9    27.7    +      -       -      +
    482D  ALA*     4.9     2.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with MET 448 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    414C  LEU*     3.7    32.1    -      -       +      +
    417C  ALA*     3.8    12.6    -      -       +      -
    418C  PHE*     3.7    24.2    -      -       +      +
    421C  GLN*     5.6     0.2    -      -       +      -
    431C  VAL*     4.8     0.7    -      -       +      -
    444C  GLU      3.1    12.2    +      -       -      +
    445C  LEU*     3.5    30.7    -      -       -      +
    447C  SER*     1.3    76.8    -      -       -      +
    449C  LEU*     1.3    63.3    +      -       -      +
    451C  ASP      3.4     0.9    +      -       -      -
    452C  LYS      3.0     3.8    +      -       -      -
    453C  GLN*     2.9    51.9    +      -       +      +
    455C  PRO*     4.0    20.0    -      -       +      -
    457C  ILE*     3.9    11.2    -      -       +      -
    523C  LEU*     4.2    11.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 449 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    445C  LEU*     3.1    27.8    +      -       +      +
    446C  GLY*     3.6     7.2    -      -       -      +
    448C  MET*     1.3    76.7    -      -       -      +
    450C  ARG*     1.3    67.6    +      -       -      +
    452C  LYS*     2.7    21.5    +      -       -      +
    453C  GLN      5.4     0.7    -      -       -      +
    490C  PRO*     3.9    32.8    -      -       +      +
    493C  LEU*     4.2    11.0    -      -       +      +
    494C  SER*     4.1    22.0    -      -       -      +
    497C  PRO*     4.8     5.8    -      -       +      -
    498C  GLN*     5.0     8.5    -      -       +      +
    499C  SER*     4.7     9.9    -      -       -      -
    523C  LEU*     3.6    37.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 450 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47C  VAL*     4.3     5.7    -      -       -      +
     48C  GLY*     2.9    36.5    +      -       -      +
     49C  CYS*     5.4     0.4    -      -       -      +
    418C  PHE*     4.0    10.7    -      -       -      -
    446C  GLY      2.9    17.9    +      -       -      +
    447C  SER*     3.3    11.9    +      -       -      +
    449C  LEU*     1.3    76.6    -      -       -      +
    451C  ASP*     1.3    90.0    +      -       -      +
    452C  LYS*     3.3    12.0    +      -       -      +
    480D  ASP      5.1     3.2    +      -       -      -
    481D  ILE*     4.6     7.2    -      -       -      +
    482D  ALA*     3.7    37.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 451 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47C  VAL*     4.3     5.2    -      -       -      +
    418C  PHE*     3.3    19.5    -      -       +      -
    422C  THR*     5.2     1.4    +      -       -      -
    447C  SER      2.9    12.4    +      -       -      +
    448C  MET      4.2     1.3    -      -       -      +
    450C  ARG*     1.3   114.3    +      -       -      +
    452C  LYS*     1.3    69.6    +      -       -      +
    453C  GLN*     3.3    17.1    +      -       +      +
----------------------------------------------------------
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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