Contacts of the helix formed by residues 438 - 449 (chain B) in PDB entry 5OC9


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 ILE 438 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    434B  ALA*     2.9    26.1    +      -       +      +
    437B  LEU*     1.3    80.4    -      -       -      +
    439B  THR*     1.4    69.3    +      -       -      +
    440B  SER      3.4     0.7    -      -       -      -
    441B  GLN*     3.2     5.4    +      -       -      +
    442B  ILE*     3.1    42.5    +      -       +      +
    515B  TYR*     3.6    20.9    -      -       -      +
    521B  PHE*     3.9    33.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 439 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    434B  ALA      4.9     0.2    +      -       -      -
    435B  THR*     3.3    23.8    +      -       +      +
    438B  ILE*     1.4    78.9    -      -       -      +
    440B  SER*     1.3    62.7    +      -       -      +
    442B  ILE*     3.4    11.0    +      -       -      +
    443B  LEU*     3.1    45.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 440 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    435B  THR*     2.8    25.7    +      -       -      +
    436B  LEU*     3.4    24.5    -      -       -      +
    439B  THR*     1.3    71.8    -      -       -      +
    441B  GLN*     1.4    57.2    +      -       -      +
    443B  LEU*     3.6     8.5    +      -       -      +
    444B  ASN*     2.9    29.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 441 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    436B  LEU      3.4    16.5    +      -       -      +
    437B  LEU*     2.8    34.9    +      -       -      +
    438B  ILE      3.2     8.6    +      -       -      +
    440B  SER*     1.4    73.4    -      -       -      +
    442B  ILE*     1.4    64.0    +      -       +      +
    444B  ASN*     3.6     8.3    -      -       +      +
    445B  GLN*     3.2    28.9    +      -       -      +
    500B  GLU*     5.2     3.6    -      -       -      +
    504B  GLN*     2.9    33.4    +      -       -      +
    507B  TYR*     6.2     2.2    -      -       +      -
    521B  PHE      3.8     8.9    +      -       -      -
    522B  ALA*     4.6     0.2    -      -       -      +
    525B  ASN*     3.1    35.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 442 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    438B  ILE*     3.1    41.0    +      -       +      +
    439B  THR*     3.4     9.4    +      -       -      +
    441B  GLN*     1.4    74.2    -      -       +      +
    443B  LEU*     1.4    63.8    +      -       +      +
    445B  GLN*     3.3    15.8    +      -       -      +
    446B  ILE*     3.3    28.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 443 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    439B  THR*     3.1    41.5    +      -       +      +
    440B  SER*     3.9     7.0    -      -       -      +
    442B  ILE*     1.4    73.7    -      -       +      +
    444B  ASN*     1.4    64.3    +      -       -      +
    446B  ILE*     3.3    18.0    +      -       +      +
    447B  MET*     3.1    33.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 444 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    440B  SER*     2.9    20.1    +      -       -      +
    441B  GLN*     3.6    10.3    -      -       -      +
    443B  LEU*     1.4    75.7    -      -       -      +
    445B  GLN*     1.4    49.7    +      -       -      +
    447B  MET*     3.3     6.3    +      -       -      +
    448B  GLU*     2.8    42.3    +      -       -      +
    500B  GLU*     3.1    24.2    +      -       -      +
    701B   CA      2.5    31.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 445 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    441B  GLN      3.2    14.4    +      -       -      +
    442B  ILE*     3.3    10.7    +      -       -      +
    444B  ASN*     1.4    71.7    -      -       -      +
    446B  ILE*     1.4    62.4    +      -       -      +
    448B  GLU*     3.1     4.5    -      -       -      +
    449B  SER*     3.2    21.3    +      -       -      -
    450B  PHE*     3.3    30.5    +      -       +      -
    525B  ASN*     3.9     8.2    +      -       -      +
    528B  THR*     3.3    26.3    +      -       -      +
    529B  GLU*     3.0    16.9    +      -       -      +
    532B  SER*     2.7    38.2    +      -       -      -
    701B   CA      2.5    26.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 446 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    442B  ILE*     3.4    33.7    -      -       +      +
    443B  LEU*     3.6    19.5    -      -       +      +
    444B  ASN      3.3     0.6    -      -       -      -
    445B  GLN*     1.4    76.9    -      -       -      +
    447B  MET*     1.3    67.0    +      -       -      +
    450B  PHE*     3.6    18.9    +      -       +      -
    451B  LEU*     2.8    46.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET 447 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    443B  LEU*     3.1    22.4    +      -       +      +
    444B  ASN*     3.8     6.1    -      -       -      +
    446B  ILE*     1.3    83.9    -      -       -      +
    448B  GLU*     1.4    58.9    +      -       -      +
    451B  LEU*     4.1    24.9    -      -       +      +
    452B  PRO*     3.3    17.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 448 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    444B  ASN*     2.8    28.1    +      -       -      +
    445B  GLN*     3.1     9.8    -      -       -      +
    447B  MET*     1.4    72.6    -      -       -      +
    449B  SER*     1.4    59.2    +      -       -      +
    452B  PRO*     3.6    10.5    -      -       -      +
    496B  ASP*     5.3     1.6    -      -       -      +
    497B  ASP*     3.4     1.7    -      -       -      +
    500B  GLU*     2.9    15.7    -      -       -      +
    529B  GLU*     3.0     5.5    -      -       -      +
    532B  SER*     3.5     4.3    +      -       -      -
    533B  ASP*     3.3    12.7    -      -       -      +
    536B  LYS*     2.9    38.9    +      -       +      +
    540B  VAL*     5.5     0.7    -      -       -      +
    541B  PHE*     5.4     3.3    -      -       -      -
    701B   CA      2.7    20.4    -      -       -      -
    702B   CA      2.5    22.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 449 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    445B  GLN      3.2     5.2    +      -       -      -
    447B  MET      3.7     0.4    -      -       -      -
    448B  GLU*     1.4    80.2    -      -       -      +
    450B  PHE*     1.3    64.3    +      -       -      +
    452B  PRO*     3.5     6.7    -      -       -      +
    453B  TYR*     2.8    38.3    +      -       -      +
    532B  SER*     2.9    48.3    +      -       -      -
    535B  LEU*     4.5     5.2    -      -       -      -
    536B  LYS*     3.9    16.4    -      -       -      -
    540B  VAL*     4.1     3.3    -      -       -      +
----------------------------------------------------------
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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