Contacts of the helix formed by residues 81 - 92 (chain H) in PDB entry 2BZN


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 SER 81 (chain H).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80H  TYR*     1.3    74.2    -      -       -      +
     82H  LEU*     1.3    65.9    +      -       -      +
     83H  VAL*     3.4    11.6    +      -       -      +
     84H  GLN*     2.8    42.1    +      -       -      +
     85H  TRP*     2.9    25.3    +      -       -      -
    116H  ILE*     5.8     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 82 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80H  TYR      4.2     0.4    +      -       -      -
     81H  SER*     1.3    72.5    -      -       -      +
     83H  VAL*     1.3    58.7    +      -       +      +
     85H  TRP*     3.0    10.7    +      -       +      +
     86H  GLN*     2.8    57.2    +      -       +      +
    115H  GLN*     3.9    20.4    -      -       +      +
    116H  ILE*     3.8    31.7    -      -       +      +
    119H  ALA*     3.6    29.6    -      -       +      -
    120H  ILE*     4.9     1.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 83 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81H  SER*     3.2     9.9    +      -       -      +
     82H  LEU*     1.3    78.1    -      -       +      +
     84H  GLN*     1.3    61.0    +      -       +      +
     86H  GLN*     3.2    16.5    +      -       +      +
     87H  GLU*     2.8    34.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 84 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61H  PHE*     3.7     8.2    -      -       +      -
     79H  HIS      4.4     2.1    -      -       -      +
     80H  TYR*     3.5    33.2    -      -       +      -
     81H  SER*     2.8    46.0    +      -       -      +
     83H  VAL*     1.3    79.3    -      -       +      +
     85H  TRP*     1.3    55.9    +      -       -      +
     87H  GLU*     3.6     6.3    +      -       -      +
     88H  PHE*     3.0    28.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 85 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61H  PHE*     3.8    19.1    -      +       -      -
     76H  VAL*     3.4    39.2    -      -       +      +
     77H  HIS      4.8     4.8    +      -       -      -
     80H  TYR*     3.8    23.4    +      -       +      +
     81H  SER      2.9    25.2    +      -       -      -
     82H  LEU*     3.4    12.1    -      -       +      +
     84H  GLN*     1.3    74.1    -      -       -      +
     86H  GLN*     1.3    54.9    +      -       -      +
     88H  PHE*     3.1     7.0    +      +       -      +
     89H  ALA*     2.8    35.3    +      -       -      +
     96H  LEU*     5.8     1.1    -      -       +      -
     99H  LEU*     3.9    23.3    -      -       +      -
    100H  ALA      4.3     2.0    -      -       -      -
    101H  ALA*     4.0    28.7    -      -       +      -
    102H  SER      5.6     0.4    -      -       -      -
    116H  ILE*     3.6    39.1    -      -       +      +
    120H  ILE*     3.8    21.0    -      -       +      +
    123H  VAL*     4.0    15.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 86 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82H  LEU*     2.8    49.5    +      -       +      +
     83H  VAL*     3.7    17.3    -      -       -      +
     85H  TRP*     1.3    68.0    -      -       -      +
     87H  GLU*     1.3    56.3    +      -       -      +
     89H  ALA*     3.2     1.1    +      -       -      +
     90H  GLY*     2.7    35.2    +      -       -      -
    119H  ALA*     4.6    10.4    -      -       +      +
    120H  ILE*     3.8    19.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 87 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83H  VAL*     2.8    23.3    +      -       +      +
     84H  GLN*     3.6     8.3    -      -       -      +
     86H  GLN*     1.3    78.0    -      -       -      +
     88H  PHE*     1.3    65.0    +      -       -      +
     90H  GLY*     3.4     1.5    +      -       -      +
     91H  GLN*     2.6    59.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 88 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61H  PHE*     3.4    57.9    -      +       +      -
     64H  ALA*     4.1    15.3    -      -       +      -
     65H  LYS*     3.7    15.7    -      -       +      -
     84H  GLN      3.0    18.6    +      -       -      +
     85H  TRP*     3.1     6.5    +      +       -      +
     87H  GLU*     1.3    80.0    +      -       -      +
     89H  ALA*     1.3    59.2    +      -       -      +
     91H  GLN      3.2     0.7    +      -       -      -
     92H  ASN*     2.8    57.7    +      -       +      +
     95H  CYS*     3.8    23.6    -      -       +      -
     96H  LEU*     3.8    15.7    -      -       +      -
     99H  LEU*     3.8    25.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 89 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85H  TRP*     2.8    20.6    +      -       +      +
     86H  GLN      3.8     1.6    -      -       -      +
     88H  PHE*     1.3    73.4    -      -       -      +
     90H  GLY*     1.3    63.8    +      -       -      +
     92H  ASN      3.7     0.4    -      -       -      +
     93H  PRO*     3.4    24.8    -      -       -      +
     96H  LEU*     3.8    34.2    -      -       +      +
    120H  ILE*     3.7    24.5    -      -       +      -
    122H  GLN*     5.5     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 90 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86H  GLN      2.7    21.2    +      -       -      -
     87H  GLU*     3.7     2.0    -      -       -      -
     89H  ALA*     1.3    75.2    -      -       -      +
     91H  GLN*     1.3    62.2    +      -       -      +
     93H  PRO*     3.9     7.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 91 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65H  LYS*     6.2     0.4    -      -       -      +
     87H  GLU*     2.6    46.5    +      -       -      +
     90H  GLY*     1.3    79.0    -      -       -      +
     92H  ASN*     1.3    77.7    +      -       -      +
     93H  PRO*     3.4     7.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 92 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65H  LYS*     3.8    29.0    +      -       -      +
     88H  PHE*     2.8    48.5    +      -       +      +
     89H  ALA      3.7     4.0    -      -       -      -
     90H  GLY      3.4     0.2    -      -       -      -
     91H  GLN*     1.3    92.2    +      -       -      +
     93H  PRO*     1.3    66.5    -      -       -      +
     94H  ASP      3.1     2.9    -      -       -      -
     95H  CYS*     3.1    31.2    +      -       -      +
     96H  LEU*     3.9     8.8    -      -       -      +
----------------------------------------------------------
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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