Contacts of the helix formed by residues 81 - 97 (chain A) in PDB entry 5Y39


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 81 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79A  HIS*     3.3    34.8    +      +       +      +
     80A  GLU*     1.3    83.7    -      -       -      +
     82A  MET*     1.3    61.5    +      -       -      +
     83A  ASP      3.3     1.1    -      -       -      -
     84A  ARG*     3.4    36.1    +      -       +      +
     85A  ALA*     2.9    31.4    +      -       -      +
     28C  ASP*     3.6    34.2    +      -       +      +
     30C  VAL*     3.7    18.4    -      -       +      +
     47C  PRO*     4.3    24.5    -      -       +      -
     48C  GLY      6.0     0.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 82 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79A  HIS*     3.4    25.1    -      -       +      +
     80A  GLU*     5.2     0.2    -      -       -      -
     81A  TYR*     1.3    81.2    -      -       -      +
     83A  ASP*     1.3    61.1    +      -       -      +
     85A  ALA*     3.5     8.5    +      -       +      +
     86A  ARG*     3.0    30.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 83 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80A  GLU*     4.3    31.3    -      -       +      +
     81A  TYR      3.3     0.4    -      -       -      -
     82A  MET*     1.3    81.9    -      -       -      +
     84A  ARG*     1.3    56.7    -      -       -      +
     86A  ARG*     3.4    31.2    +      -       -      +
     87A  GLN*     3.0    28.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 84 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80A  GLU      4.5     3.7    +      -       -      +
     81A  TYR*     3.4    35.8    +      -       -      +
     82A  MET      3.3     0.4    -      -       -      -
     83A  ASP*     1.3    75.1    -      -       -      +
     85A  ALA*     1.3    65.1    +      -       -      +
     87A  GLN*     3.2    20.9    -      -       -      +
     88A  TYR*     3.1    49.5    +      -       +      -
     26C  ASP*     3.3    16.5    +      -       -      -
     28C  ASP*     3.2    43.2    +      -       -      +
     30C  VAL*     3.9     9.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 85 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81A  TYR      2.9    19.0    +      -       -      +
     82A  MET*     3.8    10.5    -      -       +      +
     84A  ARG*     1.3    75.4    -      -       -      +
     86A  ARG*     1.3    52.7    +      -       -      +
     88A  TYR*     3.5     6.0    +      -       -      +
     89A  SER*     2.6    37.2    +      -       -      +
     30C  VAL*     3.7    16.7    -      -       +      +
     31C  PRO*     4.4    17.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 86 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82A  MET      3.0    19.4    +      -       -      +
     83A  ASP*     3.4    32.6    +      -       -      +
     85A  ALA*     1.3    75.1    -      -       -      +
     87A  GLN*     1.3    84.3    +      -       -      +
     89A  SER*     3.2    10.4    +      -       -      -
     90A  THR*     3.0    35.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 87 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83A  ASP      3.0    17.0    +      -       -      +
     84A  ARG*     3.2    27.8    -      -       -      +
     86A  ARG*     1.3    90.3    -      -       -      +
     88A  TYR*     1.3    83.4    +      -       -      +
     90A  THR*     3.3     8.1    +      -       -      -
     91A  ARG*     3.1    60.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 88 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84A  ARG*     3.1    29.8    +      -       +      +
     85A  ALA      3.6     5.4    -      -       -      +
     86A  ARG      3.3     0.2    -      -       -      -
     87A  GLN*     1.3    94.3    -      -       -      +
     89A  SER*     1.3    59.0    +      -       -      +
     91A  ARG*     3.2     1.7    +      -       -      -
     92A  LEU*     2.9    32.6    +      -       -      +
     26C  ASP*     2.6    38.7    +      -       -      +
     30C  VAL*     3.6    21.3    -      -       +      -
     31C  PRO      3.3    26.5    -      -       -      +
     32C  VAL*     4.0     9.4    -      -       +      -
    120C  VAL*     3.6    39.1    -      -       +      +
    121C  VAL*     3.8    25.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 89 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85A  ALA      2.6    21.8    +      -       -      -
     86A  ARG*     3.2    12.2    +      -       -      -
     88A  TYR*     1.3    76.1    -      -       -      +
     90A  THR*     1.3    55.6    +      -       -      +
     92A  LEU*     3.7    10.5    +      -       -      +
     93A  ALA*     3.0    29.3    +      -       -      +
     31C  PRO      5.6     0.2    +      -       -      -
     32C  VAL      5.6     1.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 90 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86A  ARG*     3.0    22.3    +      -       -      +
     87A  GLN*     3.5    10.4    -      -       -      -
     88A  TYR      3.2     0.2    -      -       -      -
     89A  SER*     1.3    76.1    -      -       -      +
     91A  ARG*     1.3    59.1    +      -       +      +
     93A  ALA*     3.2     9.5    +      -       +      +
     94A  VAL*     3.0    34.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 91 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87A  GLN*     3.1    42.2    +      -       -      +
     88A  TYR*     3.2     3.7    +      -       -      +
     90A  THR*     1.3    74.4    -      -       +      +
     92A  LEU*     1.3    64.8    +      -       -      +
     94A  VAL*     3.2    11.2    +      -       -      +
     95A  LEU*     3.1    30.9    +      -       +      +
    119C  GLN      4.3    11.2    +      -       -      -
    120C  VAL*     2.9    41.6    +      -       +      -
    121C  VAL      4.1     1.6    +      -       -      -
    122C  GLU*     2.8    29.7    +      -       -      +
    123C  VAL*     4.4    14.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 92 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88A  TYR      2.9    18.1    +      -       -      +
     89A  SER*     3.9     7.2    -      -       -      +
     91A  ARG*     1.3    75.7    -      -       -      +
     93A  ALA*     1.3    54.8    +      -       -      +
     95A  LEU*     3.2     5.8    +      -       +      +
     96A  SER*     2.8    58.7    +      -       -      +
      3C  ASP*     4.7    11.9    -      -       -      +
      5C  LEU*     4.4     4.9    -      -       +      -
      6C  LYS*     5.5     2.7    -      -       +      -
     32C  VAL*     3.4    24.5    -      -       +      +
     33C  ILE*     3.6    33.2    -      -       +      -
    117C  LEU*     3.8    18.4    -      -       +      -
    120C  VAL*     4.2    12.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 93 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     89A  SER      3.0    20.3    +      -       -      +
     90A  THR*     3.2     8.5    +      -       -      +
     92A  LEU*     1.3    77.8    -      -       -      +
     94A  VAL*     1.3    63.8    +      -       +      +
     96A  SER*     3.8    10.5    +      -       -      -
     97A  SER*     4.2    12.1    +      -       -      -
      3C  ASP*     6.3     1.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 94 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90A  THR*     3.0    27.6    +      -       +      +
     91A  ARG*     3.2    11.4    +      -       -      +
     93A  ALA*     1.3    79.0    -      -       +      +
     95A  LEU*     1.3    71.7    +      -       +      +
     96A  SER      3.7     0.2    +      -       -      -
     97A  SER*     4.1     4.7    +      -       -      -
     98A  SER*     4.1    12.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 95 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91A  ARG*     3.1    14.6    +      -       +      +
     92A  LEU*     3.2     6.5    +      -       +      +
     94A  VAL*     1.3    83.0    -      -       +      +
     96A  SER*     1.3    60.6    +      -       -      +
     97A  SER      3.3     2.9    -      -       -      -
     98A  SER*     2.9    30.9    +      -       -      -
     99A  LEU*     3.2    20.0    +      -       +      +
    116C  GLU      4.2    10.3    -      -       -      +
    117C  LEU*     5.2     4.7    -      -       +      -
    119C  GLN*     3.7    42.2    -      -       +      +
    120C  VAL*     3.9    24.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 96 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92A  LEU*     2.8    41.1    +      -       -      +
     93A  ALA*     3.8     6.5    +      -       -      -
     94A  VAL      3.5     0.6    -      -       -      -
     95A  LEU*     1.3    72.2    -      -       -      +
     97A  SER*     1.3    59.5    +      -       -      +
     99A  LEU      4.3     4.0    -      -       -      +
    100A  THR*     3.5    21.8    +      -       -      -
      3C  ASP*     2.6    38.0    +      -       -      -
      5C  LEU*     4.6     4.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 97 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93A  ALA      4.2     8.7    +      -       -      -
     94A  VAL      4.1     6.8    +      -       -      -
     95A  LEU      3.3     0.4    -      -       -      -
     96A  SER*     1.3    76.2    -      -       -      +
     98A  SER*     1.3    64.8    +      -       -      +
    100A  THR*     3.3    19.3    -      -       -      +
----------------------------------------------------------
 Back to top of page


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