Contacts of the helix formed by residues 485 - 501 (chain A) in PDB entry 1ONV


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 SER 485 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    483A  GLY      4.2     0.8    +      -       -      -
    484A  LEU*     1.3    72.2    -      -       -      +
    486A  SER*     1.3    60.4    +      -       -      +
    487A  GLU*     3.8     8.8    +      -       -      +
    488A  GLN*     2.9    36.9    +      -       -      +
    489A  THR*     2.6    37.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 486 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    478A  GLN      5.5     0.2    -      -       -      -
    479A  THR*     5.4     5.8    -      -       -      +
    484A  LEU      3.7     1.4    +      -       -      -
    485A  SER*     1.3    75.0    +      -       -      +
    487A  GLU*     1.3    58.6    +      -       -      +
    489A  THR      3.6     0.2    +      -       -      -
    490A  VAL*     3.0    32.9    +      -       -      +
    949B  MET*     3.4    38.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 487 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    485A  SER*     3.2     8.5    +      -       -      +
    486A  SER*     1.3    75.5    -      -       -      +
    488A  GLN*     1.3    62.6    +      -       +      +
    490A  VAL*     3.4     5.4    +      -       -      +
    491A  ASN*     2.8    35.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 488 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    484A  LEU*     4.7    18.4    -      -       +      +
    485A  SER*     2.9    41.7    +      -       -      +
    487A  GLU*     1.3    78.1    -      -       +      +
    489A  THR*     1.3    63.8    +      -       -      +
    491A  ASN*     3.6     5.3    -      -       -      +
    492A  VAL*     2.8    36.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 489 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    454A  VAL*     6.3     0.9    -      -       +      -
    474A  LEU*     4.8     9.1    -      -       +      +
    477A  PHE*     3.1    36.6    +      -       +      +
    478A  GLN*     4.4     8.2    +      -       -      -
    482A  THR*     5.3     1.1    +      -       -      +
    484A  LEU*     3.4    22.2    +      -       +      +
    485A  SER      2.6    26.8    +      -       -      -
    486A  SER*     3.8     5.9    -      -       -      -
    488A  GLN*     1.3    73.0    -      -       -      +
    490A  VAL*     1.3    62.2    +      -       -      +
    492A  VAL*     4.6     2.9    -      -       -      -
    493A  LEU*     3.3    38.6    +      -       +      +
    949B  MET*     4.3     7.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 490 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    474A  LEU*     3.6    17.0    -      -       +      -
    486A  SER      3.0    19.9    +      -       -      +
    487A  GLU*     3.9     4.7    -      -       -      +
    488A  GLN      3.3     0.2    -      -       -      -
    489A  THR*     1.3    73.7    -      -       -      +
    491A  ASN*     1.3    55.8    +      -       -      +
    493A  LEU*     3.6     3.1    -      -       -      -
    494A  ALA*     2.6    45.1    +      -       +      +
    949B  MET*     3.3    25.4    -      -       +      +
    952B  ALA*     3.7    14.6    -      -       +      -
    953B  LEU*     3.6    38.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 491 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    487A  GLU*     2.8    23.5    +      -       +      +
    488A  GLN*     3.3     8.5    +      -       -      +
    490A  VAL*     1.3    77.4    -      -       -      +
    492A  VAL*     1.3    64.9    +      -       -      +
    494A  ALA*     3.6     5.4    -      -       -      +
    495A  GLN*     3.0    59.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 492 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    454A  VAL*     4.8    18.2    -      -       +      +
    484A  LEU*     6.2     4.7    -      -       +      -
    488A  GLN*     2.8    29.5    +      -       +      +
    489A  THR*     3.9     5.8    -      -       -      +
    491A  ASN*     1.3    83.1    -      -       +      +
    493A  LEU*     1.3    71.0    +      -       +      +
    495A  GLN*     3.5     9.7    +      -       -      +
    496A  ILE*     3.3    27.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 493 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    454A  VAL*     3.5    32.5    -      -       +      -
    459A  VAL*     3.4    33.7    -      -       +      -
    473A  LEU*     5.7    10.1    -      -       +      +
    474A  LEU*     5.9     7.0    -      -       +      -
    477A  PHE*     5.9     6.3    -      -       +      -
    489A  THR*     3.3    28.5    +      -       +      +
    490A  VAL*     4.1     1.1    -      -       -      +
    492A  VAL*     1.3    80.9    -      -       +      +
    494A  ALA*     1.3    55.8    +      -       -      +
    496A  ILE*     3.9     6.5    -      -       +      +
    497A  LEU*     2.6    51.3    +      -       +      +
    953B  LEU*     3.6    17.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 494 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    490A  VAL*     2.6    30.7    +      -       +      +
    491A  ASN*     3.6     8.3    -      -       -      +
    493A  LEU*     1.3    71.5    -      -       -      +
    495A  GLN*     1.3    55.2    +      -       +      +
    498A  LYS*     2.6    42.9    +      -       -      +
    953B  LEU*     3.5    13.2    -      -       +      -
    956B  GLU*     3.8    26.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 495 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    491A  ASN*     3.0    46.6    +      -       -      +
    492A  VAL*     3.8     8.2    -      -       -      +
    493A  LEU      3.4     0.2    -      -       -      -
    494A  ALA*     1.3    77.8    -      -       +      +
    496A  ILE*     1.3    62.0    +      -       +      +
    498A  LYS*     4.3     3.3    -      -       -      +
    499A  ARG*     3.3    35.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 496 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    454A  VAL*     5.2     4.7    -      -       +      +
    455A  THR*     3.8     7.2    -      -       -      -
    456A  GLU*     3.1    67.4    -      -       +      +
    459A  VAL*     4.6    11.9    -      -       +      -
    492A  VAL*     3.3    19.5    +      -       +      +
    493A  LEU*     4.0     7.2    -      -       +      +
    494A  ALA      3.2     0.2    -      -       -      -
    495A  GLN*     1.3    78.4    -      -       +      +
    497A  LEU*     1.3    76.1    +      -       +      +
    499A  ARG*     3.4     7.2    +      -       -      +
    500A  LEU*     3.2    18.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 497 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    459A  VAL*     3.6    28.9    -      -       +      -
    463A  LEU*     4.9     1.1    -      -       +      -
    473A  LEU*     4.2    17.0    -      -       +      -
    493A  LEU*     2.6    34.5    +      -       +      +
    494A  ALA      4.2     0.4    -      -       -      +
    496A  ILE*     1.3    76.6    -      -       +      +
    498A  LYS*     1.3    52.7    +      -       -      +
    500A  LEU*     2.6    46.5    +      -       +      +
    513A  PHE*     6.3     0.7    -      -       +      -
    953B  LEU*     3.3    46.0    -      -       +      +
    957B  LEU*     2.6    39.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 498 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    494A  ALA*     2.6    26.6    +      -       -      +
    495A  GLN*     4.3     4.3    -      -       -      +
    497A  LEU*     1.3    72.5    -      -       -      +
    499A  ARG*     1.3    59.3    +      -       +      +
    956B  GLU*     2.7    55.1    +      -       +      +
    957B  LEU*     3.6     9.5    -      -       -      +
    959B  ASP*     3.1    37.4    +      -       -      +
    960B  LEU*     2.6    35.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 499 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    456A  GLU*     5.6     2.5    -      -       -      +
    495A  GLN*     3.3    24.2    +      -       -      +
    496A  ILE*     3.4     5.7    +      -       -      +
    497A  LEU      3.1     0.6    -      -       -      -
    498A  LYS*     1.3    79.7    -      -       +      +
    500A  LEU*     1.3    54.0    +      -       -      +
    501A  ASN*     2.6    30.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 500 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    456A  GLU*     4.3    11.4    -      -       +      +
    459A  VAL*     5.6     0.2    -      -       +      -
    460A  ARG*     3.7    39.0    -      -       +      +
    463A  LEU*     3.6    24.7    -      -       +      -
    496A  ILE*     3.2     7.7    +      -       +      +
    497A  LEU*     2.6    45.1    +      -       +      +
    499A  ARG*     1.3    65.8    -      -       -      +
    501A  ASN*     1.3    81.2    +      -       -      +
    502A  PRO*     3.1    33.6    -      -       +      +
    515A  LEU*     3.8    12.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 501 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    499A  ARG      2.6    26.3    +      -       -      +
    500A  LEU*     1.3    83.2    +      -       -      +
    502A  PRO*     1.3    73.6    -      -       -      +
    503A  GLU*     4.6     4.9    -      -       -      +
    960B  LEU*     3.2    35.8    -      -       +      +
----------------------------------------------------------
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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