Contacts of the helix formed by residues 498 - 508 (chain P) in PDB entry 3HX0


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 GLU 498 (chain P).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    469P  GLN*     3.5    32.9    +      -       -      +
    470P  GLN*     3.1    12.6    +      -       -      +
    494P  VAL*     4.9     0.7    -      -       +      -
    495P  PRO*     2.7    20.9    +      -       +      +
    497P  SER*     1.3    88.4    -      -       -      +
    499P  PHE*     1.3    63.1    +      -       -      +
    500P  ALA      3.0     4.9    +      -       -      -
    501P  CYS*     3.3     3.9    +      -       -      +
    502P  ALA*     2.8    25.9    +      -       +      +
    529P  GLU      4.6     1.8    -      -       -      +
    530P  HIS*     2.8    56.7    +      -       -      +
    531P  ALA*     5.1     3.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 499 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    411P  LEU*     3.7    28.3    -      -       +      -
    413P  VAL*     4.4    13.2    -      -       +      -
    431P  LEU*     4.0    28.9    -      -       +      -
    433P  THR*     3.3    26.7    -      -       +      +
    494P  VAL*     4.2     1.8    -      -       -      -
    495P  PRO      3.1     5.9    +      -       -      +
    496P  TYR*     3.5    45.8    +      +       +      +
    498P  GLU*     1.3    77.3    -      -       -      +
    500P  ALA*     1.3    64.5    +      -       -      +
    502P  ALA*     4.0     4.7    -      -       -      -
    503P  LEU*     2.9    47.5    +      -       +      +
    554P  PRO      5.4     4.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 500 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    496P  TYR      4.9     1.0    +      -       -      -
    497P  SER      5.4     0.6    -      -       -      +
    498P  GLU*     3.0     3.0    +      -       -      +
    499P  PHE*     1.3    84.4    -      -       -      +
    501P  CYS*     1.3    63.0    +      -       -      +
    503P  LEU*     3.7     4.0    -      -       -      +
    504P  LEU*     3.2    20.2    +      -       -      +
    553P  THR*     2.9    37.2    -      -       -      +
    554P  PRO      3.3    20.0    +      -       -      +
    555P  THR*     4.1    12.3    -      -       -      +
    556P  GLU*     4.1     6.3    -      -       -      +
    559P  VAL*     4.8     4.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 501 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    498P  GLU*     3.3     2.5    +      -       -      -
    500P  ALA*     1.3    77.1    -      -       -      +
    502P  ALA*     1.3    65.4    +      -       -      +
    504P  LEU*     3.9     7.4    -      -       -      +
    505P  TYR*     3.0    25.8    +      -       -      +
    527P  LEU*     3.8    12.4    -      -       +      +
    528P  SER      3.7    17.6    -      -       -      +
    529P  GLU      3.9     1.8    -      -       -      -
    530P  HIS      3.8     6.7    -      -       -      +
    531P  ALA*     3.3    31.9    -      -       -      -
    532P  LEU*     3.3    12.1    -      -       -      -
    553P  THR*     3.4    20.4    -      -       -      -
    559P  VAL*     4.2    11.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 502 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    431P  LEU*     4.0     7.6    -      -       +      -
    494P  VAL*     3.9    30.7    -      -       +      -
    498P  GLU*     2.8    23.4    +      -       +      +
    499P  PHE      3.7     3.4    -      -       -      +
    501P  CYS*     1.3    76.9    -      -       -      +
    503P  LEU*     1.3    63.6    +      -       -      +
    505P  TYR*     3.1     2.9    +      -       -      +
    506P  PHE*     3.1    34.3    +      -       +      -
    529P  GLU      3.4    17.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 503 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    413P  VAL*     3.7    23.3    -      -       +      -
    415P  CYS*     3.6    25.6    -      -       -      -
    419P  ARG*     3.7    20.0    -      -       -      +
    431P  LEU*     3.4    16.3    -      -       +      +
    499P  PHE*     2.9    39.8    +      -       +      +
    500P  ALA*     3.7     3.4    -      -       -      +
    502P  ALA*     1.3    77.1    -      -       -      +
    504P  LEU*     1.3    58.2    +      -       -      +
    506P  PHE*     3.5     0.5    +      -       -      -
    507P  THR*     2.6    33.5    +      -       -      -
    556P  GLU*     3.0    28.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 504 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    500P  ALA      3.2    13.8    +      -       -      +
    501P  CYS*     3.9     6.7    -      -       -      +
    503P  LEU*     1.3    80.4    -      -       -      +
    505P  TYR*     1.3    63.7    +      -       -      +
    507P  THR*     3.6     4.4    +      -       -      -
    508P  GLY      3.6    10.6    +      -       -      +
    512P  PHE*     3.8    22.9    -      -       +      -
    513P  ASN*     3.5     8.4    -      -       -      +
    516P  MET*     4.9     4.9    -      -       +      -
    527P  LEU*     4.1    15.3    -      -       +      -
    556P  GLU*     3.5    16.3    +      -       +      +
    559P  VAL*     3.5    39.7    -      -       +      -
    560P  PHE*     4.3    13.9    -      -       +      -
    573P  ARG*     3.3    24.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 505 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    501P  CYS      3.0    19.3    +      -       -      +
    502P  ALA      3.1     3.3    +      -       -      +
    504P  LEU*     1.3    78.4    -      -       -      +
    506P  PHE*     1.3    74.5    +      +       -      +
    508P  GLY*     3.0     8.1    +      -       -      -
    513P  ASN*     2.9    45.4    +      -       +      -
    517P  ARG*     4.3     9.4    -      -       -      -
    527P  LEU*     6.4     1.1    -      -       +      -
    528P  SER*     4.4     4.7    -      -       -      +
    529P  GLU*     3.2    49.4    +      -       +      +
    704P  D3T      3.4    37.7    +      +       +      +
      5Q    A      2.7    46.4    +      +       -      -
      6Q    A      4.9     3.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 506 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    415P  CYS*     3.5    17.7    -      -       +      -
    416P  GLY      2.9    17.3    +      -       -      -
    429P  ASP*     4.7     8.8    -      -       +      +
    431P  LEU*     4.5     2.9    -      -       +      -
    467P  ASN*     6.1     0.7    -      -       -      -
    470P  GLN*     3.8    18.8    -      -       -      -
    490P  ASP*     6.2     0.4    -      -       -      -
    492P  ILE*     3.5    51.8    -      -       +      -
    502P  ALA*     3.1    27.9    +      -       -      +
    505P  TYR*     1.3    92.2    -      +       -      +
    507P  THR*     1.3    62.3    +      -       -      +
    508P  GLY      3.2     0.2    -      -       -      -
    529P  GLU*     4.3     7.6    -      -       +      -
    704P  D3T      3.2    47.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 507 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    415P  CYS*     3.6     3.0    -      -       -      +
    416P  GLY*     3.6    13.0    -      -       -      +
    419P  ARG*     3.0    52.1    +      -       +      +
    420P  ARG*     2.9    37.1    +      -       +      +
    503P  LEU      2.6    23.2    +      -       -      -
    504P  LEU      3.7     7.0    -      -       -      -
    505P  TYR      3.1     0.4    -      -       -      -
    506P  PHE*     1.3    78.8    -      -       -      +
    508P  GLY*     1.3    62.6    +      -       -      +
    570P  PRO*     4.4     4.5    -      -       +      -
    573P  ARG*     3.9    13.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 508 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    420P  ARG*     4.3     0.7    -      -       -      -
    504P  LEU      3.6     3.4    +      -       -      +
    505P  TYR      3.0     7.2    +      -       -      -
    506P  PHE      3.2     0.4    -      -       -      -
    507P  THR*     1.3    84.0    -      -       -      +
    509P  SER*     1.3    69.9    +      -       -      -
    512P  PHE*     3.5    19.2    -      -       -      -
    513P  ASN*     3.3    13.7    -      -       -      -
    573P  ARG*     3.6    18.8    -      -       -      +
    704P  D3T      3.9     7.0    -      -       -      -
----------------------------------------------------------
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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