Contacts of the strand formed by residues 182 - 188 (chain D) in PDB entry 1HBX


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 GLN 182 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    180D  GLY      5.1     3.0    +      -       -      -
    181D  THR*     1.3    77.4    +      -       -      +
    183D  VAL*     1.3    71.3    +      -       -      +
    199D  THR*     3.3    22.3    -      -       -      +
    200D  ARG*     5.6     3.8    -      -       -      +
    201D  LYS*     2.9    61.2    +      -       +      +
    202D  LEU*     3.9    16.9    +      -       +      -
    187E  VAL*     3.8     0.3    -      -       -      -
    188E  ALA*     3.4    32.5    +      -       +      +
    219E  LEU*     4.4    13.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 183 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172D  ALA*     3.6    31.2    -      -       +      +
    175D  LEU*     4.4    13.2    -      -       +      -
    176D  SER*     3.7    25.8    -      -       -      +
    181D  THR*     3.9     9.9    -      -       -      +
    182D  GLN*     1.3    83.1    -      -       -      +
    184D  LEU*     1.3    70.6    +      -       -      +
    197D  PHE*     3.5     7.6    -      -       +      +
    198D  ALA*     3.3     4.9    -      -       -      -
    199D  THR*     2.6    38.5    +      -       -      +
    202D  LEU*     3.8     5.0    -      -       -      +
    168E  ILE*     5.1     0.7    -      -       +      -
    185E  LEU*     4.3     9.4    -      -       +      -
    186E  LEU      3.4     9.4    -      -       -      +
    187E  VAL*     4.5     5.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 184 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    183D  VAL*     1.3    79.7    -      -       -      +
    185D  LEU*     1.3    79.6    +      -       -      +
    186D  LEU*     5.0     3.6    -      -       +      -
    197D  PHE      3.4     9.6    -      -       -      +
    198D  ALA*     3.8    15.9    -      -       +      -
    202D  LEU*     3.9    17.0    -      -       +      +
    205D  MET*     3.3    36.1    -      -       +      -
    206D  ILE*     4.1    18.8    -      -       +      -
    184E  LEU*     3.4    22.6    -      -       +      +
    185E  LEU*     3.2     6.2    -      -       -      +
    186E  LEU*     2.8    49.6    +      -       +      -
    205E  MET*     5.0     1.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 185 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168D  ILE*     3.6    61.2    -      -       +      +
    169D  MET*     3.8    23.3    -      -       +      -
    172D  ALA*     4.4    14.1    -      -       +      -
    184D  LEU*     1.3    78.5    -      -       -      +
    186D  LEU*     1.3    77.7    +      -       -      +
    187D  VAL*     4.1     7.4    -      -       +      -
    196D  THR*     3.2     5.0    -      -       -      -
    197D  PHE*     2.9    37.9    +      -       +      +
    168E  ILE*     4.8     2.0    -      -       +      -
    183E  VAL*     4.2     7.2    -      -       +      -
    184E  LEU      3.3     7.9    -      -       -      +
    185E  LEU*     4.3    14.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 186 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    184D  LEU*     5.0     3.6    -      -       +      -
    185D  LEU*     1.3    77.9    -      -       -      +
    187D  VAL*     1.3    80.7    +      -       -      +
    188D  ALA      4.6     1.6    -      -       -      +
    194D  VAL*     4.9     5.6    -      -       +      -
    195D  TYR      3.3     3.4    -      -       -      +
    196D  THR*     3.8    22.2    -      -       +      -
    206D  ILE*     4.4    13.5    -      -       +      -
    215D  ILE*     3.9    30.3    -      -       +      -
    219D  LEU*     4.7    16.2    -      -       +      -
    183E  VAL*     3.4     3.8    -      -       -      +
    184E  LEU*     2.8    44.1    +      -       +      +
    202E  LEU*     4.0    20.4    -      -       +      -
    205E  MET*     4.8     8.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 187 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    161D  PHE*     3.6    33.7    -      -       +      -
    165D  LYS*     4.4     9.4    -      -       +      -
    168D  ILE*     5.1     3.4    -      -       +      -
    169D  MET*     3.8    18.6    -      -       +      -
    185D  LEU*     4.1    13.0    -      -       +      -
    186D  LEU*     1.3    85.8    -      -       -      +
    188D  ALA*     1.3    62.6    +      -       -      +
    193D  HIS      3.8     0.7    -      -       -      +
    194D  VAL*     3.1     2.8    -      -       -      -
    195D  TYR*     2.6    50.1    +      -       +      +
    175E  LEU*     4.3    17.5    -      -       +      -
    181E  THR*     4.9     0.2    -      -       -      +
    182E  GLN      3.5     7.2    -      -       -      +
    183E  VAL*     4.5     8.3    -      -       +      -
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Residues in contact with ALA 188 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    186D  LEU*     4.6     1.1    -      -       +      +
    187D  VAL*     1.3    77.0    -      -       -      +
    189D  SER*     1.3    64.0    +      -       -      +
    190D  GLU      3.9     0.2    +      -       -      -
    192D  GLY      5.1     1.3    -      -       -      +
    193D  HIS      3.6     3.6    -      -       -      -
    194D  VAL*     4.1    14.8    -      -       +      +
    219D  LEU*     4.0    17.5    -      -       +      -
    181E  THR*     3.2    24.9    -      -       -      -
    182E  GLN*     2.9    32.8    +      -       +      -
----------------------------------------------------------
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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