Contacts of the strand formed by residues 83 - 89 (chain A) in PDB entry 1BHL


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 TYR 83 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61A  TRP*     3.7    20.2    -      +       -      -
     76A  ALA      3.7     0.2    -      -       -      +
     77A  VAL*     3.4     2.4    -      -       -      -
     78A  HIS*     2.9    26.8    +      -       +      -
     81A  SER*     3.2    18.6    +      -       -      +
     82A  GLY*     1.3    77.0    -      -       -      +
     84A  ILE*     1.3    60.9    +      -       -      +
     85A  GLU*     2.5    48.7    +      -       +      +
    107A  ARG*     4.6     0.3    -      -       -      -
    108A  TRP*     3.5    20.1    -      +       -      -
    184A  ASN*     3.4    32.3    -      -       +      -
    196A  ALA*     3.6     8.5    -      -       -      +
    197A  GLY*     4.3     7.4    -      -       -      -
    200A  ILE*     3.4    36.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 84 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75A  VAL*     4.5    10.8    -      -       +      -
     76A  ALA      3.0    12.8    -      -       -      +
     77A  VAL*     4.0    10.5    -      -       +      -
     82A  GLY      3.5    11.4    -      -       -      +
     83A  TYR*     1.3    87.9    -      -       -      +
     85A  GLU*     1.3    66.9    +      -       -      +
     86A  ALA*     5.1     0.2    -      -       +      -
    154A  MET*     3.6    18.8    -      -       +      -
    158A  LEU*     4.5    10.8    -      -       +      -
    180A  VAL*     3.7    37.3    -      -       +      +
    183A  HIS*     3.1    35.7    -      -       +      +
    184A  ASN*     3.0    33.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 85 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75A  VAL*     3.7     1.7    -      -       -      +
     76A  ALA*     2.9    31.2    +      -       +      +
     83A  TYR*     2.5    34.1    +      -       +      +
     84A  ILE*     1.3    74.0    -      -       -      +
     86A  ALA*     1.3    62.4    +      -       -      +
    100A  PHE*     3.9    15.4    -      -       +      -
    104A  LEU*     3.1    24.4    -      -       +      +
    107A  ARG*     2.7    35.2    +      -       -      -
    108A  TRP*     2.7    20.6    +      -       -      -
    180A  VAL*     4.7     4.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 86 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73A  ILE*     4.2     6.3    -      -       +      -
     74A  LEU      3.1    13.5    -      -       -      +
     75A  VAL*     4.6     8.3    -      -       +      -
     85A  GLU*     1.3    76.9    -      -       -      +
     87A  GLU*     1.3    70.6    +      -       -      +
    100A  PHE*     4.3     3.4    -      -       -      -
    158A  LEU*     5.0     3.1    -      -       +      -
    176A  VAL*     3.9    15.3    -      -       +      -
    177A  GLN*     3.0    21.9    +      -       -      +
    180A  VAL*     3.7    25.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 87 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73A  ILE*     3.4     3.5    -      -       -      +
     74A  LEU*     2.7    40.3    +      -       +      +
     86A  ALA*     1.3    81.5    -      -       -      +
     88A  VAL*     1.3    71.7    +      -       -      +
     89A  ILE*     3.7    10.9    +      -       +      -
    100A  PHE*     3.8    26.6    -      -       +      -
    103A  LYS*     3.7    25.7    +      -       -      +
    176A  VAL*     5.4     0.4    -      -       -      -
    177A  GLN*     4.2    10.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 88 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71A  LYS*     4.3    26.0    -      -       +      -
     72A  VAL      3.3     8.5    -      -       -      +
     73A  ILE*     4.1    10.5    -      -       +      -
     87A  GLU*     1.3    80.6    +      -       -      +
     89A  ILE*     1.3    69.8    +      -       -      +
     90A  PRO*     4.8     0.2    -      -       -      +
    172A  LEU*     4.5     4.3    -      -       +      -
    173A  LYS*     3.9    44.1    +      -       +      +
    176A  VAL*     3.7    32.1    -      -       +      -
    177A  GLN*     5.0     3.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 89 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65A  CAS      4.7     3.1    -      -       +      -
     71A  LYS*     4.6     2.4    -      -       -      +
     72A  VAL*     2.8    48.9    +      -       +      +
     74A  LEU*     3.9    22.7    -      -       +      +
     87A  GLU*     4.6    20.4    -      -       +      +
     88A  VAL*     1.3    84.1    -      -       -      +
     90A  PRO*     1.3    77.5    -      -       +      +
     91A  ALA      3.2    24.9    -      -       -      +
     92A  GLU*     4.2     4.9    -      -       -      -
     93A  THR      5.4     0.2    -      -       -      +
     96A  GLU*     3.6    37.0    -      -       +      +
----------------------------------------------------------
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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