Contacts of the helix formed by residues 76 - 92 (chain A) in PDB entry 3LHR


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 ASN 76 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50A  GLU*     3.9    24.7    -      -       +      +
     54A  LEU*     3.7    20.2    -      -       -      +
     74A  PRO*     3.4     2.2    -      -       -      +
     75A  GLU*     1.3    83.3    -      -       -      +
     77A  GLY*     1.3    62.6    +      -       -      +
     78A  GLU*     3.1    16.1    +      -       -      +
     79A  GLU*     2.9    35.3    +      -       -      +
     80A  ALA      3.1    16.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 77 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50A  GLU*     3.5    12.5    +      -       -      -
     53A  VAL*     5.5     1.6    -      -       -      -
     54A  LEU*     4.2    20.3    -      -       -      +
     57A  PHE*     5.4     0.4    -      -       -      -
     76A  ASN*     1.3    73.1    -      -       -      +
     78A  GLU*     1.3    65.4    +      -       -      +
     80A  ALA*     3.2     5.3    +      -       -      +
     81A  VAL*     3.0    29.7    +      -       -      +
     27B  VAL*     4.1    20.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 78 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50A  GLU*     4.8     2.2    -      -       -      +
     76A  ASN*     3.2    12.3    -      -       -      +
     77A  GLY*     1.3    76.5    -      -       -      +
     79A  GLU*     1.3    62.2    +      -       +      +
     81A  VAL*     3.3     4.9    +      -       -      +
     82A  THR*     3.0    27.9    +      -       -      -
     24B  ARG*     2.7    33.4    +      -       -      +
     27B  VAL*     4.4     3.3    -      -       -      +
     31B  ARG*     2.5    37.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 79 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1A  GLY      4.3     9.4    +      -       -      -
     74A  PRO*     3.4    13.1    -      -       +      +
     75A  GLU*     2.8    42.2    +      -       -      +
     76A  ASN*     2.9    29.5    +      -       -      +
     78A  GLU*     1.3    79.1    -      -       +      +
     80A  ALA*     1.3    62.5    +      -       -      +
     82A  THR*     3.4     8.3    +      -       -      -
     83A  VAL*     3.1    26.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 80 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54A  LEU*     3.7    28.0    -      -       +      -
     57A  PHE*     3.8    22.0    -      -       +      -
     69A  VAL*     4.1     8.5    -      -       +      +
     74A  PRO*     3.5    15.1    -      -       +      +
     76A  ASN      3.1     4.0    +      -       -      -
     77A  GLY      3.2     8.9    +      -       -      +
     79A  GLU*     1.3    76.6    -      -       -      +
     81A  VAL*     1.3    63.8    +      -       -      +
     83A  VAL*     3.1    16.6    +      -       -      +
     84A  LEU*     3.1    16.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 81 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57A  PHE*     4.4     1.8    -      -       +      -
     77A  GLY      3.0    18.8    +      -       -      +
     78A  GLU*     3.7     8.3    -      -       -      +
     79A  GLU      3.2     0.2    -      -       -      -
     80A  ALA*     1.3    75.9    -      -       -      +
     82A  THR*     1.3    52.4    +      -       -      +
     84A  LEU*     3.1     6.4    +      -       -      +
     85A  GLU*     2.7    43.9    +      -       -      +
     23B  PRO*     3.8    23.6    -      -       +      +
     24B  ARG*     3.2    51.6    -      -       -      +
     27B  VAL*     3.5    25.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 82 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78A  GLU      3.0    14.0    +      -       -      -
     79A  GLU*     3.5    11.8    -      -       -      -
     81A  VAL*     1.3    72.6    -      -       -      +
     83A  VAL*     1.3    56.5    +      -       +      +
     85A  GLU*     3.7     8.2    +      -       +      +
     86A  ASP*     2.6    54.3    +      -       -      +
     24B  ARG*     3.6    12.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 83 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68A  TRP*     3.5    31.8    +      -       +      +
     69A  VAL*     4.1    11.9    -      -       +      -
     72A  HIS*     3.8    37.0    -      -       +      +
     74A  PRO*     4.9     7.2    -      -       +      -
     79A  GLU*     3.1    22.9    +      -       +      +
     80A  ALA*     3.3    12.3    -      -       -      +
     82A  THR*     1.3    76.8    -      -       +      +
     84A  LEU*     1.3    55.6    +      -       -      +
     86A  ASP*     3.4     8.4    +      -       -      +
     87A  LEU*     3.0    27.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 84 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57A  PHE*     3.5    37.0    -      -       +      -
     61A  LEU*     3.9    14.6    -      -       +      -
     65A  LEU*     4.1    36.3    -      -       +      +
     68A  TRP*     5.3     0.9    -      -       +      -
     69A  VAL*     3.7    20.9    -      -       +      -
     80A  ALA      3.1     8.3    +      -       -      +
     81A  VAL*     3.1     7.2    +      -       -      +
     83A  VAL*     1.3    74.1    -      -       -      +
     85A  GLU*     1.3    60.4    +      -       -      +
     87A  LEU*     3.3     9.1    +      -       +      +
     88A  GLU*     2.8    32.1    +      -       -      +
     17B  TYR*     4.0     4.7    -      -       -      +
     23B  PRO*     3.8    21.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 85 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81A  VAL*     2.7    32.3    +      -       +      +
     82A  THR*     3.7     7.8    +      -       +      +
     84A  LEU*     1.3    72.5    -      -       -      +
     86A  ASP*     1.3    63.6    +      -       -      +
     88A  GLU*     3.5    16.2    +      -       -      +
     89A  SER*     3.1    27.3    +      -       -      -
     23B  PRO*     4.9     9.4    -      -       +      +
     24B  ARG*     3.6    33.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 86 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82A  THR*     2.6    41.8    +      -       -      +
     83A  VAL*     3.7     7.9    -      -       -      +
     85A  GLU*     1.3    72.2    -      -       -      +
     87A  LEU*     1.3    64.3    +      -       -      +
     89A  SER*     3.2     6.8    +      -       -      -
     90A  GLU*     3.0    25.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 87 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65A  LEU*     3.6    30.3    -      -       +      -
     68A  TRP*     3.8    59.2    -      -       +      +
     83A  VAL      3.0    17.1    +      -       -      +
     84A  LEU*     3.7     9.0    -      -       +      +
     86A  ASP*     1.3    74.4    -      -       -      +
     88A  GLU*     1.3    67.1    +      -       -      +
     90A  GLU*     3.1     9.3    +      -       +      +
     91A  LEU*     2.9    56.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 88 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84A  LEU*     2.8    21.4    +      -       -      +
     85A  GLU*     3.5    18.4    -      -       -      +
     87A  LEU*     1.3    74.5    -      -       -      +
     89A  SER*     1.3    64.8    +      -       -      +
     91A  LEU*     3.2     6.3    +      -       -      -
     92A  ASP*     3.1    45.4    +      -       -      +
     23B  PRO*     5.6     6.2    -      -       -      +
----------------------------------------------------------
 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  GLU      3.1    15.8    +      -       -      -
     86A  ASP*     3.8     6.1    -      -       -      -
     87A  LEU      3.1     0.8    -      -       -      -
     88A  GLU*     1.3    80.2    -      -       -      +
     90A  GLU*     1.3    60.0    +      -       -      +
     92A  ASP*     3.4    18.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 90 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68A  TRP*     5.5     8.4    -      -       -      -
     86A  ASP*     3.0    16.8    +      -       -      +
     87A  LEU*     3.1    11.1    +      -       +      +
     89A  SER*     1.3    75.0    -      -       -      +
     91A  LEU*     1.3    64.2    +      -       +      +
     92A  ASP      3.5     1.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 91 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65A  LEU*     6.3     0.4    -      -       +      -
     87A  LEU*     2.9    46.2    +      -       +      +
     88A  GLU*     3.8     6.1    -      -       -      +
     90A  GLU*     1.3    80.4    -      -       +      +
     92A  ASP*     1.3    70.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 92 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88A  GLU*     3.1    35.5    +      -       -      +
     89A  SER*     3.4    14.0    +      -       -      +
     90A  GLU      5.0     1.1    -      -       -      -
     91A  LEU*     1.3    89.2    -      -       -      +
----------------------------------------------------------
 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