Contacts of the helix formed by residues 56 - 66 (chain A) in PDB entry 5YWB


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 56 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54A  ARG      2.6    11.1    +      -       -      -
     55A  PHE*     1.3    71.9    -      -       -      +
     57A  GLN*     1.3    56.9    +      -       -      -
     58A  ASP      3.6     0.4    -      -       -      -
     59A  VAL*     3.1    24.0    -      -       +      +
     60A  PHE*     2.9    25.1    +      -       -      +
    132B  PHE*     5.6     2.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 57 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55A  PHE      3.0     7.2    +      -       -      +
     56A  LEU*     1.3    75.4    -      -       -      +
     58A  ASP*     1.3    62.4    +      -       -      +
     59A  VAL      3.1     1.1    -      -       -      -
     60A  PHE*     2.9    22.7    +      -       -      +
     61A  THR*     3.0    17.1    +      -       -      +
     68C  TRP*     6.4     2.0    -      -       +      -
    174C  ALA*     6.3     4.0    -      -       +      -
    176C  ARG*     3.7    28.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 58 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54A  ARG*     3.3    33.5    -      -       +      +
     57A  GLN*     1.3    77.6    -      -       -      +
     59A  VAL*     1.3    57.2    +      -       -      +
     61A  THR*     3.1    11.7    +      -       -      +
     62A  THR*     2.7    34.3    +      -       -      +
    176C  ARG*     4.9     5.6    -      -       +      +
    177C  ARG*     4.3    22.9    -      -       -      +
    206C  ARG*     4.6     6.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 59 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54A  ARG*     3.4    25.8    -      -       +      +
     56A  LEU*     3.1    24.7    -      -       +      +
     57A  GLN      3.1     0.8    -      -       -      -
     58A  ASP*     1.3    73.6    -      -       -      +
     60A  PHE*     1.3    64.4    +      -       +      +
     61A  THR      3.1     1.6    -      -       -      -
     62A  THR*     3.8     6.8    -      -       -      -
     63A  LEU*     2.9    30.8    +      -       -      +
     49B  ILE*     4.6    27.3    -      -       +      +
    132B  PHE*     5.7     7.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 60 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56A  LEU      2.9    13.8    +      -       -      +
     57A  GLN*     2.9    14.6    +      -       -      +
     59A  VAL*     1.3    77.4    -      -       -      +
     61A  THR*     1.3    59.2    +      -       +      +
     63A  LEU*     3.2    32.1    -      -       +      +
     64A  VAL*     3.6     9.5    -      -       -      +
    162A  ILE*     5.8     8.1    -      -       +      -
    171C  THR*     5.7     4.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 61 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57A  GLN      3.0    10.4    +      -       -      +
     58A  ASP*     3.1    21.3    +      -       -      +
     60A  PHE*     1.3    78.8    -      -       +      +
     62A  THR*     1.3    63.7    +      -       -      +
     63A  LEU      3.1     1.1    -      -       -      -
     64A  VAL*     3.1    19.8    +      -       +      +
     65A  ASP*     3.1    11.1    +      -       -      +
    169A  MET*     5.6     9.2    -      -       -      -
    171C  THR      5.0     6.7    -      -       -      +
    172C  ALA      5.6     1.3    -      -       -      +
    173C  GLN      5.0     6.5    -      -       -      +
    174C  ALA*     4.9    17.7    -      -       +      -
    177C  ARG*     5.0     9.4    +      -       -      +
    293C  THR*     5.8     5.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 62 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58A  ASP*     2.7    29.6    +      -       -      +
     59A  VAL*     3.9     7.4    -      -       -      -
     61A  THR*     1.3    73.3    +      -       -      +
     63A  LEU*     1.3    62.7    +      -       -      +
     65A  ASP*     3.3    24.1    +      -       +      +
     66A  LEU*     3.5    17.8    +      -       +      +
     49B  ILE*     5.1    13.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 63 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59A  VAL*     2.9    11.8    +      -       +      +
     60A  PHE*     3.2    30.5    -      -       +      +
     61A  THR      3.1     0.2    -      -       -      -
     62A  THR*     1.3    78.0    -      -       -      +
     64A  VAL*     1.3    69.0    +      -       +      +
     66A  LEU*     3.2    29.0    +      -       +      +
     71A  THR*     3.8     9.2    +      -       -      +
     74A  ILE*     4.8    11.8    -      -       +      +
     75A  PHE*     3.5    37.0    -      -       +      -
    162A  ILE*     5.7     8.1    -      -       +      -
    166A  CYS*     4.6    11.9    -      -       +      -
     49B  ILE*     4.9    19.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 64 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60A  PHE      3.6    16.8    -      -       -      +
     61A  THR*     3.1    12.0    +      -       +      +
     63A  LEU*     1.3    82.3    -      -       +      +
     65A  ASP*     1.3    62.2    +      -       -      +
     66A  LEU      3.4     8.5    +      -       -      +
     71A  THR*     5.0     3.6    +      -       -      -
     75A  PHE*     6.2     0.4    -      -       -      -
    166A  CYS*     4.2    24.0    -      -       +      +
    169A  MET*     4.6    18.6    -      -       +      -
    170A  LYS*     3.3    41.8    -      -       +      +
    173A  GLN*     4.3    15.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 65 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61A  THR      3.1    11.3    +      -       -      +
     62A  THR*     3.3    20.3    -      -       +      +
     63A  LEU      3.2     0.2    -      -       -      -
     64A  VAL*     1.3    76.0    -      -       -      +
     66A  LEU*     1.3    67.0    +      -       -      +
     67A  LYS*     3.6     2.6    +      -       -      +
    173A  GLN*     5.8     2.0    -      -       -      -
    175A  HIS*     5.4     7.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 66 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62A  THR*     3.6    21.1    -      -       +      +
     63A  LEU*     3.2    18.4    +      -       +      +
     64A  VAL      3.5     8.0    -      -       -      +
     65A  ASP*     1.3    82.6    -      -       +      +
     67A  LYS*     1.3    67.7    +      -       -      +
     68A  TRP*     3.6     1.4    +      -       -      -
     70A  HIS*     4.2    23.6    -      -       +      +
     71A  THR*     4.0    11.4    -      -       -      +
     74A  ILE*     5.6     9.4    -      -       +      -
     48B  PHE      4.8     7.6    -      -       -      +
     49B  ILE*     4.9    14.4    -      -       +      +
     52B  GLY*     3.9    37.5    -      -       -      +
----------------------------------------------------------
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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