Contacts of the helix formed by residues 394 - 402 (chain D) in PDB entry 2HHW


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 LEU 394 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    370D  MET      2.8    17.1    +      -       -      +
    371D  PHE*     3.7    17.4    -      -       +      -
    392D  PHE*     3.8    22.6    -      -       +      -
    393D  ASP*     1.3    68.7    -      -       -      +
    395D  LEU*     1.3    60.4    +      -       -      +
    397D  ALA*     4.1     0.4    -      -       -      -
    398D  ALA*     2.9    28.9    +      -       -      +
    410D  VAL*     4.4     9.2    -      -       +      -
    413D  ALA*     3.8    17.3    -      -       +      -
    454D  ILE*     4.1    23.3    -      -       +      -
    457D  LEU*     4.3    19.7    -      -       +      -
    461D  PHE*     3.9    43.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 395 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    371D  PHE*     3.5    29.4    -      -       +      -
    372D  ASP*     3.7    38.1    -      -       +      +
    393D  ASP*     3.0    11.8    +      -       -      +
    394D  LEU*     1.3    78.9    -      -       -      +
    396D  LEU*     1.3    63.5    +      -       +      +
    398D  ALA*     3.9     1.9    -      -       -      +
    399D  TYR*     3.0    29.6    +      -       +      +
    407D  VAL*     3.5    26.5    -      -       +      +
    408D  ASP*     4.7     2.2    -      -       -      -
    609D  ALA*     3.8    18.4    -      -       +      -
      2H  FRU      3.7    27.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 396 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    393D  ASP*     3.2    31.4    +      -       +      +
    395D  LEU*     1.3    79.0    -      -       +      +
    397D  ALA*     1.3    64.9    +      -       -      +
    399D  TYR*     3.5     7.0    -      -       +      +
    400D  LEU*     3.0    30.3    +      -       -      +
    474D  LEU*     3.7    15.5    -      -       +      -
    478D  GLU*     3.9    33.0    -      -       +      +
    479D  GLN*     4.2     5.6    -      -       +      -
    482D  SER*     4.2     9.2    -      -       -      +
    608D  GLN*     3.6    47.1    -      -       +      +
    609D  ALA*     4.5     8.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 397 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    392D  PHE*     3.8    27.4    -      -       +      -
    393D  ASP      3.0    16.6    +      -       -      +
    394D  LEU      3.7     4.3    -      -       -      +
    396D  LEU*     1.3    75.5    -      -       -      +
    398D  ALA*     1.3    65.1    +      -       -      +
    400D  LEU*     3.4     4.6    +      -       -      +
    401D  LEU*     3.1    26.7    +      -       -      +
    461D  PHE*     4.0    13.0    -      -       +      -
    465D  LEU*     4.0    16.9    -      -       +      +
    474D  LEU*     3.8     8.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 398 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    394D  LEU      2.9    17.9    +      -       -      +
    395D  LEU      3.9     3.6    -      -       -      +
    397D  ALA*     1.3    76.0    -      -       -      +
    399D  TYR*     1.3    62.8    +      -       -      +
    401D  LEU*     3.3     2.6    +      -       -      +
    402D  ASP      3.1    24.7    +      -       -      +
    407D  VAL*     4.0    34.5    -      -       +      -
    413D  ALA*     4.1     4.3    -      -       +      -
    416D  MET*     4.0    11.5    -      -       -      +
    461D  PHE*     3.9    21.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 399 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    395D  LEU*     3.0    19.4    +      -       +      +
    396D  LEU*     3.5    10.3    -      -       +      +
    397D  ALA      3.2     0.2    -      -       -      -
    398D  ALA*     1.3    76.7    -      -       -      +
    400D  LEU*     1.3    72.1    +      -       +      +
    402D  ASP      4.7     2.9    -      -       -      -
    403D  PRO*     3.1    51.9    -      -       +      +
    407D  VAL*     5.4     2.4    -      -       -      +
    478D  GLU*     4.9     3.4    -      -       -      -
    608D  GLN      3.2    23.1    +      -       -      -
    609D  ALA*     3.5    23.3    -      -       +      -
    610D  LEU      3.4    17.0    -      -       -      -
    611D  THR*     2.6    36.9    +      -       -      -
    614D  GLY*     3.4    18.8    -      -       -      -
    615D  ARG      3.8     4.2    +      -       -      -
    769D  ARG*     4.1    18.8    -      -       -      -
    805D  LYS*     5.0     1.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 400 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    396D  LEU      3.0    21.2    +      -       -      +
    397D  ALA      3.8     3.8    -      -       -      +
    399D  TYR*     1.3    86.3    -      -       +      +
    401D  LEU*     1.3    63.6    +      -       -      +
    402D  ASP      3.3     0.2    +      -       -      -
    403D  PRO*     4.2     6.2    -      -       -      +
    465D  LEU*     4.1    10.3    -      -       +      -
    470D  GLN*     3.1    28.8    +      -       -      +
    473D  LEU*     3.8    22.4    -      -       +      -
    474D  LEU*     3.7    44.2    -      -       +      +
    478D  GLU*     4.0    13.9    -      -       +      -
    769D  ARG*     3.7    32.5    -      -       +      +
    770D  ARG*     4.2     6.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 401 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    397D  ALA      3.1    12.0    +      -       -      +
    398D  ALA      3.3     4.7    +      -       -      +
    400D  LEU*     1.3    77.5    -      -       -      +
    402D  ASP*     1.3    62.6    +      -       -      +
    403D  PRO*     4.3     0.2    -      -       -      -
    416D  MET*     3.7    18.6    -      -       +      -
    417D  LYS*     4.8     0.9    -      -       -      -
    461D  PHE*     3.5    36.3    -      -       +      +
    464D  GLU*     3.4    40.0    -      -       +      +
    465D  LEU*     3.5    25.1    -      -       +      +
    468D  ASN*     3.6    23.7    +      -       -      +
    470D  GLN*     3.7     2.7    -      -       -      +
    770D  ARG*     4.3     4.7    -      -       -      +
    772D  TYR*     3.4    21.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 402 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    398D  ALA      3.1    13.0    +      -       -      +
    399D  TYR*     3.4     3.6    -      -       -      -
    400D  LEU      3.3     0.4    -      -       -      -
    401D  LEU*     1.3    83.3    -      -       +      +
    403D  PRO*     1.3    69.6    -      -       -      +
    404D  ALA*     3.1    24.1    +      -       -      +
    405D  GLN*     3.2    45.6    +      -       +      +
    406D  GLY      4.5     0.5    +      -       -      -
    407D  VAL*     5.4     1.0    +      -       -      +
    416D  MET*     5.2     4.9    -      -       +      -
    772D  TYR*     4.0    25.2    +      -       +      +
----------------------------------------------------------
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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