Contacts of the helix formed by residues 451 - 464 (chain N) in PDB entry 3HOU


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 LYS 451 (chain N).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    449N  ASN*     2.5    23.6    +      -       -      +
    450N  ALA*     1.3    74.7    -      -       -      +
    452N  THR*     1.3    56.5    +      -       -      -
    453N  ILE      3.3     0.9    -      -       -      -
    454N  THR*     3.7     9.4    -      -       +      -
    455N  SER*     2.9    41.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 452 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    420N  LEU*     4.2    19.3    -      -       +      +
    423N  LYS*     4.3    33.2    -      -       +      -
    424N  LEU*     5.3     9.8    -      -       -      +
    427N  ASP*     6.1     1.4    -      -       -      -
    449N  ASN*     3.0    25.9    +      -       -      +
    451N  LYS*     1.3    77.5    -      -       -      +
    453N  ILE*     1.3    62.8    +      -       +      +
    455N  SER*     3.3     5.3    +      -       -      -
    456N  GLY*     3.0    27.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 453 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128N  LEU*     4.6     3.6    -      -       +      -
    167N  ILE*     3.4    36.8    -      -       +      +
    168N  GLY*     4.2     9.9    -      -       -      -
    169N  ARG      3.8     0.4    -      -       -      +
    417N  PHE*     3.3    44.2    -      -       +      -
    420N  LEU*     4.5    20.6    -      -       +      -
    421N  PHE*     4.2    12.6    -      -       +      +
    424N  LEU*     3.6    18.4    -      -       +      -
    449N  ASN      5.7     0.2    -      -       -      +
    450N  ALA      4.3     1.6    +      -       -      -
    451N  LYS      3.3     0.2    -      -       -      -
    452N  THR*     1.3    80.3    -      -       -      +
    454N  THR*     1.3    63.9    +      -       -      +
    456N  GLY      4.1     0.4    -      -       -      -
    457N  LEU*     3.3    30.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 454 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    166N  PHE*     4.1     1.9    -      -       -      -
    168N  GLY*     2.8    12.5    -      -       -      -
    169N  ARG*     2.6    59.3    +      -       +      +
    171N  PRO*     5.1     0.3    -      -       -      +
    450N  ALA      2.9     7.1    +      -       -      -
    451N  LYS*     3.2    14.5    +      -       +      -
    453N  ILE*     1.3    82.0    -      -       -      +
    455N  SER*     1.3    63.1    +      -       -      +
    457N  LEU*     4.0     3.5    +      -       -      +
    458N  LYS*     3.6    30.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 455 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    451N  LYS*     2.9    31.1    +      -       -      +
    452N  THR*     3.3     7.3    +      -       -      -
    454N  THR*     1.3    78.4    -      -       -      +
    456N  GLY*     1.3    74.1    +      -       -      +
    458N  LYS*     2.8    11.1    +      -       -      +
    459N  TYR*     2.8    24.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 456 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    416N  LEU*     4.8     2.6    -      -       -      +
    420N  LEU*     3.7    22.2    -      -       -      -
    452N  THR      3.0    14.7    +      -       -      -
    455N  SER*     1.3    83.3    +      -       -      +
    457N  LEU*     1.3    63.1    +      -       -      +
    458N  LYS      3.2     0.2    +      -       -      -
    459N  TYR*     3.3     7.8    +      -       -      +
    460N  ALA*     3.3    20.4    +      -       -      +
    468N  GLU*     6.6     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 457 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54N  PHE*     6.5     0.4    -      -       +      -
    128N  LEU*     5.5     0.4    -      -       +      -
    169N  ARG      3.5    11.7    -      -       -      +
    170N  LEU*     3.5    22.0    -      -       +      -
    171N  PRO*     3.4    37.2    -      -       +      -
    413N  LEU*     4.8    15.5    -      -       +      +
    416N  LEU*     4.6    12.1    -      -       +      -
    417N  PHE*     4.6    24.7    -      -       +      +
    420N  LEU*     3.8    14.5    -      -       +      +
    453N  ILE*     3.3    25.0    +      -       +      +
    454N  THR      4.0     1.6    -      -       -      +
    455N  SER      3.2     0.6    -      -       -      -
    456N  GLY*     1.3    74.3    -      -       -      +
    458N  LYS*     1.3    64.0    -      -       -      +
    460N  ALA*     3.6     2.1    +      -       -      +
    461N  LEU*     3.2    28.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 458 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122N  LEU      5.3     0.2    -      -       -      -
    123N  THR*     2.6    46.0    +      -       +      +
    125N  SER*     5.6     2.2    -      -       -      -
    169N  ARG*     6.3     1.8    -      -       -      +
    171N  PRO*     5.2     4.5    -      -       +      -
    205N  ILE*     4.1    20.8    -      -       +      +
    206N  ASN*     3.5    19.3    +      -       -      +
    454N  THR*     3.7    23.3    -      -       +      +
    455N  SER*     2.8    17.2    +      -       -      +
    457N  LEU*     1.3    71.2    -      -       -      +
    459N  TYR*     1.3    69.2    +      -       -      +
    460N  ALA      2.8     1.2    +      -       -      -
    461N  LEU      3.0     2.9    +      -       -      -
    462N  ALA*     2.7    26.5    +      -       +      +
    958N  GLN*     5.2     7.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 459 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     264    T      5.0    11.7    -      -       -      -
    455N  SER      2.8    14.1    +      -       -      +
    456N  GLY*     3.5    12.6    -      -       -      +
    458N  LYS*     1.3    72.9    -      -       -      +
    460N  ALA*     1.3    70.3    +      -       +      +
    462N  ALA*     3.2     5.5    -      -       +      +
    463N  THR*     2.9    54.9    +      -       +      +
    465N  ASN*     3.4    26.5    +      -       +      +
    468N  GLU*     3.1    35.3    +      -       -      -
    469N  GLN*     3.1    42.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 460 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    416N  LEU*     3.3    35.2    -      -       +      -
    456N  GLY      3.3     6.4    +      -       -      +
    457N  LEU      3.7     5.6    -      -       -      +
    458N  LYS      2.8     3.4    +      -       -      -
    459N  TYR*     1.3    79.0    -      -       +      +
    461N  LEU*     1.3    54.9    +      -       -      +
    462N  ALA      2.6    16.5    +      -       -      -
    463N  THR*     4.2     2.2    -      -       -      -
    464N  GLY*     2.8    25.2    +      -       -      +
    465N  ASN      4.2     9.4    -      -       -      +
    466N  TRP*     3.4    20.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 461 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    171N  PRO*     4.1    13.2    -      -       +      -
    203N  PHE*     3.5    40.6    -      -       +      -
    205N  ILE*     3.6    26.5    -      -       +      -
    210N  LYS*     2.9    25.8    -      -       +      +
    212N  LEU*     4.6     8.3    -      -       +      -
    413N  LEU*     4.3    13.5    -      -       +      -
    416N  LEU*     4.6     2.9    -      -       +      -
    457N  LEU*     3.2    17.0    -      -       -      +
    458N  LYS      3.0     3.4    +      -       -      +
    460N  ALA*     1.3    70.8    -      -       +      +
    462N  ALA*     1.3    56.1    +      -       -      +
    466N  TRP*     3.2    29.6    -      -       +      -
    480N  SER*     2.7    24.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 462 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     254    G      4.9     8.7    -      -       -      +
     264    T      4.6    18.4    -      -       -      +
    205N  ILE*     4.4    13.5    -      -       +      -
    206N  ASN*     5.7     4.0    -      -       +      +
    210N  LYS*     2.8    29.2    +      -       -      +
    458N  LYS*     2.7    21.7    +      -       +      +
    459N  TYR*     3.2     8.7    -      -       +      +
    460N  ALA      2.6     4.9    +      -       -      -
    461N  LEU*     1.3    71.8    -      -       -      +
    463N  THR*     1.3    67.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 463 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     254    G      6.2     1.1    -      -       -      -
     264    T      4.3    25.6    -      -       -      +
      66    A      6.1     1.2    -      -       -      +
    210N  LYS*     5.2     0.3    -      -       -      -
    459N  TYR*     2.9    41.9    +      -       +      +
    460N  ALA      3.0     0.2    +      -       -      -
    462N  ALA*     1.3    84.6    -      -       +      +
    464N  GLY*     1.3    64.9    +      -       -      -
    465N  ASN*     3.2    31.3    +      -       -      +
    478N  GLY      5.3     0.5    +      -       -      -
    480N  SER      3.7     9.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 464 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    460N  ALA      2.8    14.8    +      -       -      -
    463N  THR*     1.3    77.8    +      -       -      +
    465N  ASN*     1.3    64.4    +      -       -      +
    466N  TRP*     3.3     1.7    +      -       -      -
    477N  ALA*     2.9    18.8    -      -       -      -
    478N  GLY      3.0     8.5    +      -       -      -
    479N  VAL*     2.9    40.0    -      -       -      +
    480N  SER*     4.0     2.5    -      -       -      -
----------------------------------------------------------
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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