Contacts of the helix formed by residues 88 - 97 (chain A) in PDB entry 5HOO


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 THR 88 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87A  GLN*     1.3    73.9    -      -       -      +
     89A  GLN*     1.3    62.5    +      -       -      +
     90A  LYS*     4.1    11.0    +      -       +      +
     91A  GLN*     2.9    62.3    +      -       +      +
     92A  LEU*     3.2    11.8    +      -       -      +
      7C    G      3.3    43.4    +      -       -      +
      8C    T      3.4    13.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 89 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87A  GLN      3.8     0.6    +      -       -      -
     88A  THR*     1.3    71.8    +      -       -      +
     90A  LYS*     1.3    56.2    +      -       -      +
     92A  LEU*     3.5     8.4    +      -       +      +
     93A  ALA*     2.9    31.1    +      -       -      +
    100A  GLN*     2.6    43.2    +      -       +      +
    103A  VAL*     3.5    16.4    -      -       +      +
    104A  SER*     3.4    20.5    -      -       -      +
    107A  LEU*     4.1    10.1    -      -       +      +
    171B  TYR*     3.1    33.2    +      -       +      -
      8C    T      3.0    29.6    +      -       -      +
      9C    A      3.1    23.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 90 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88A  THR*     3.2    11.9    +      -       +      +
     89A  GLN*     1.3    78.5    -      -       -      +
     91A  GLN*     1.3    60.6    +      -       -      +
     93A  ALA*     3.7     6.8    -      -       +      +
     94A  GLU*     3.2    41.9    +      -       +      +
    100A  GLN*     4.3    16.6    -      -       +      +
      7C    G      4.4    15.3    +      -       -      +
      8C    T      4.7     1.0    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 91 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84A  ASP*     5.3     1.4    +      -       -      -
     86A  ALA      5.2     0.6    +      -       -      -
     87A  GLN*     3.2    32.2    -      -       +      +
     88A  THR*     2.9    36.0    +      -       +      +
     90A  LYS*     1.3    77.0    -      -       -      +
     92A  LEU*     1.3    64.5    +      -       -      +
     94A  GLU*     3.5    14.3    +      -       -      +
     95A  GLN*     3.4    27.2    +      -       -      +
----------------------------------------------------------
 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
----------------------------------------------------------
     77A  LEU*     4.1    23.6    -      -       +      -
     80A  LEU*     4.2    16.3    -      -       +      +
     81A  LEU*     4.2    21.8    -      -       +      -
     87A  GLN*     3.7    38.6    -      -       +      +
     88A  THR      3.2    16.3    +      -       -      +
     89A  GLN*     3.8    16.4    -      -       +      +
     91A  GLN*     1.3    72.0    -      -       -      +
     93A  ALA*     1.3    67.2    +      -       -      +
     95A  GLN*     3.1    12.5    +      -       -      +
     96A  LEU*     3.0    28.8    +      -       +      +
    103A  VAL*     4.5    11.2    -      -       +      -
    107A  LEU*     4.9    12.3    -      -       +      -
    171B  TYR*     5.0     2.0    -      -       +      -
----------------------------------------------------------
 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  GLN      2.9    19.1    +      -       -      +
     90A  LYS*     3.7     7.4    -      -       +      +
     92A  LEU*     1.3    76.2    -      -       -      +
     94A  GLU*     1.3    56.5    +      -       +      +
     96A  LEU      3.5     0.5    +      -       -      -
     97A  GLU*     2.9    24.8    +      -       -      -
     98A  VAL*     3.0    31.8    +      -       -      +
     99A  SER      3.4    22.7    -      -       -      +
    100A  GLN*     3.7     4.3    -      -       -      +
    103A  VAL*     4.3    10.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 94 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90A  LYS*     3.2    37.6    +      -       +      +
     91A  GLN*     3.7    14.8    -      -       -      +
     92A  LEU      3.3     0.4    -      -       -      -
     93A  ALA*     1.3    77.8    -      -       +      +
     95A  GLN*     1.3    62.8    +      -       +      +
     97A  GLU*     3.4    15.6    +      -       -      +
     98A  VAL      5.0     0.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 95 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80A  LEU*     3.6    32.9    -      -       +      +
     83A  GLU*     5.0     4.2    +      -       -      -
     87A  GLN*     2.6    32.8    +      -       -      +
     91A  GLN*     3.4    13.4    +      -       -      +
     92A  LEU*     3.1     6.4    +      -       -      +
     94A  GLU*     1.3    79.1    -      -       +      +
     96A  LEU*     1.3    60.6    +      -       -      +
     97A  GLU*     3.4     9.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 96 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71A  ARG*     5.4     3.5    -      -       -      +
     72A  TYR*     3.9    51.4    -      -       +      +
     76A  GLU*     4.1    33.5    -      -       +      +
     77A  LEU*     4.1    16.2    -      -       +      +
     80A  LEU*     4.6    10.1    -      -       +      -
     92A  LEU      3.0    17.0    +      -       -      +
     93A  ALA      4.1     0.2    -      -       -      +
     95A  GLN*     1.3    72.7    -      -       -      +
     97A  GLU*     1.3    69.7    +      -       -      +
     98A  VAL*     3.4    18.9    +      -       +      +
    103A  VAL*     3.7    29.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 97 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71A  ARG*     5.2     3.5    +      -       -      +
     93A  ALA      2.9     7.5    +      -       -      -
     94A  GLU*     3.4    10.2    +      -       -      +
     95A  GLN      3.2    11.8    -      -       -      +
     96A  LEU*     1.3    81.9    -      -       -      +
     98A  VAL*     1.3    62.5    +      -       -      +
     45D    T      4.2     4.3    +      -       -      -
----------------------------------------------------------
 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