Contacts of the helix formed by residues 69 - 82 (chain B) in PDB entry 1W8D


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 69 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66B  GLY      3.4     5.4    +      -       -      +
     68B  GLY*     1.3    82.6    -      -       -      +
     70B  GLY*     1.3    68.7    +      -       -      +
     71B  LEU      3.3     0.5    +      -       -      -
     72B  GLY      3.2     5.9    +      -       -      -
     73B  LYS*     2.9    19.0    +      -       -      +
     95B  VAL*     4.4    18.8    -      -       +      -
   1330B  NAP      3.0    46.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 70 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69B  THR*     1.3    72.2    -      -       -      +
     71B  LEU*     1.3    63.7    +      -       -      -
     73B  LYS*     3.4     9.4    +      -       -      +
     74B  GLY      3.1    23.4    +      -       -      -
    274B  VAL*     3.7    13.0    -      -       -      +
   1330B  NAP      3.5     7.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 71 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70B  GLY*     1.3    73.7    -      -       -      -
     72B  GLY*     1.3    57.6    +      -       -      +
     74B  GLY*     3.4     1.7    +      -       -      -
     75B  MSE      3.0    34.8    +      -       -      +
    144B  ASN*     3.9     3.1    -      -       -      +
    195B  ILE*     4.4     2.0    -      -       +      -
    240B  PRO*     4.4     4.9    -      -       +      -
    243B  ILE*     3.7    32.8    -      -       +      +
    244B  LYS      6.2     0.2    -      -       -      -
    274B  VAL*     4.3    14.2    -      -       +      +
    277B  LEU*     3.6    30.1    -      -       +      +
   1330B  NAP      2.9    80.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 72 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64B  ILE*     4.0     3.0    -      -       -      +
     66B  GLY      3.6     6.1    -      -       -      -
     67B  GLY*     3.6    10.4    -      -       -      -
     69B  THR      3.2     3.4    +      -       -      -
     71B  LEU*     1.3    75.5    -      -       -      +
     73B  LYS*     1.3    58.0    -      -       -      +
     75B  MSE      3.5    11.5    +      -       -      +
     76B  THR*     2.8    33.3    +      -       -      -
    144B  ASN*     3.5    26.5    -      -       -      +
   1330B  NAP      4.3     0.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 73 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67B  GLY      3.3    11.0    +      -       -      +
     68B  GLY      3.9     9.3    +      -       -      +
     69B  THR*     2.9    16.2    +      -       -      +
     70B  GLY*     3.5    15.7    -      -       -      +
     72B  GLY*     1.3    72.6    -      -       -      +
     74B  GLY*     1.3    53.5    +      -       -      +
     76B  THR*     3.0     5.5    +      -       -      -
     77B  THR*     2.7    45.2    +      -       -      +
     99B  THR*     3.7    32.3    +      -       +      -
    102B  GLN*     3.6    33.4    +      -       -      +
    103B  ILE*     4.0     2.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 74 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70B  GLY      3.1     7.7    +      -       -      -
     73B  LYS*     1.3    79.8    -      -       -      +
     75B  MSE      1.3    61.9    +      -       -      +
     77B  THR*     3.3     7.9    +      -       -      -
     78B  LEU*     3.2    24.3    +      -       -      +
    274B  VAL*     3.6    24.7    -      -       -      -
    275B  GLU*     6.3     0.2    -      -       -      -
    278B  ALA*     3.9     8.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MSE 75 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64B  ILE*     4.7     2.7    -      -       +      -
     71B  LEU*     3.0    26.9    +      -       +      +
     72B  GLY*     3.6     6.7    -      -       -      +
     73B  LYS      3.2     0.2    -      -       -      -
     74B  GLY*     1.3    75.7    -      -       -      +
     76B  THR*     1.3    61.7    +      -       -      +
     78B  LEU*     4.1     0.9    -      -       -      +
     79B  LEU*     3.1    33.2    +      -       +      +
    142B  ILE*     3.9    31.6    -      -       +      -
    144B  ASN*     3.2    41.1    -      -       +      +
    195B  ILE*     3.9    17.0    -      -       +      -
    274B  VAL      5.7     0.2    -      -       -      +
    277B  LEU*     4.5     8.7    -      -       +      -
    278B  ALA*     4.1    17.5    -      -       -      +
    281B  ALA*     3.6    31.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 76 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64B  ILE*     3.2    24.0    -      -       -      +
     67B  GLY      3.9     3.5    +      -       -      +
     72B  GLY      2.8    23.2    +      -       -      -
     73B  LYS      3.0     4.9    +      -       -      -
     75B  MSE      1.3    74.7    -      -       -      +
     77B  THR*     1.3    65.0    +      -       -      +
     79B  LEU*     3.4     1.1    +      -       -      -
     80B  SER*     2.8    26.0    +      -       -      -
     86B  CYS*     3.8    12.9    -      -       +      -
     88B  ILE*     3.3    28.9    -      -       +      +
    103B  ILE*     3.9    12.1    -      -       +      -
    111B  VAL*     3.8    20.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 77 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73B  LYS*     2.7    27.5    +      -       -      +
     74B  GLY*     3.5    10.8    -      -       -      -
     76B  THR*     1.3    71.4    -      -       -      +
     78B  LEU*     1.3    53.6    +      -       -      +
     80B  SER*     3.1     4.0    +      -       -      -
     81B  SER*     2.6    39.0    +      -       -      -
    102B  GLN*     6.2     0.2    -      -       -      +
    103B  ILE*     3.4    29.0    -      -       +      +
    106B  GLN*     4.0    32.5    -      -       -      +
    107B  THR*     3.9     2.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 78 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49B  LYS      5.1     0.4    -      -       -      -
     50B  ALA*     3.7    37.7    -      -       +      +
     51B  MSE      5.0     0.2    -      -       -      +
     74B  GLY      3.2    12.9    +      -       -      +
     75B  MSE      4.1     2.9    -      -       -      +
     77B  THR*     1.3    77.7    -      -       -      +
     79B  LEU*     1.3    66.3    +      -       +      +
     81B  SER*     3.0    11.5    +      -       -      +
     82B  LEU*     3.0    35.6    +      -       +      +
    275B  GLU*     5.6     3.8    -      -       +      +
    278B  ALA*     3.5    36.6    -      -       +      +
    279B  ASN*     3.5    18.6    -      -       -      +
    282B  ALA*     3.7    17.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 79 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57B  PHE*     3.7    41.5    -      -       +      +
     62B  ALA*     3.7    26.5    -      -       +      -
     64B  ILE*     4.7     4.7    -      -       +      -
     75B  MSE      3.1    23.0    +      -       +      +
     78B  LEU*     1.3    76.9    -      -       +      +
     80B  SER*     1.3    60.9    +      -       -      +
     82B  LEU*     3.3     5.7    +      -       +      +
     83B  GLY      3.2     5.0    +      -       -      -
     84B  ALA*     3.0    30.2    +      -       +      +
     86B  CYS*     3.8    11.7    -      -       -      -
    140B  ILE*     4.3     9.0    -      -       +      -
    142B  ILE*     4.2    23.3    -      -       +      -
    282B  ALA*     4.3    16.2    -      -       +      -
    285B  CYS*     5.4     1.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 80 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76B  THR      2.8    19.0    +      -       -      -
     77B  THR      3.3     3.1    -      -       -      -
     79B  LEU*     1.3    72.5    -      -       -      +
     81B  SER*     1.3    55.2    +      -       -      +
     82B  LEU      3.0     4.3    -      -       -      -
     83B  GLY*     2.8    10.9    +      -       -      -
     84B  ALA      3.9    11.0    +      -       -      -
     86B  CYS*     3.8     4.6    -      -       -      -
    103B  ILE*     3.8    12.3    -      -       -      -
    107B  THR*     2.9    22.9    +      -       -      -
    109B  ASN*     2.8    37.9    +      -       -      +
    110B  LYS      4.9     0.2    +      -       -      -
    111B  VAL*     3.6    20.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 81 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50B  ALA*     4.8     3.8    -      -       -      +
     54B  PRO*     5.9     0.3    -      -       -      +
     55B  ASN*     5.2     3.8    +      -       -      +
     77B  THR*     2.6    21.0    +      -       -      -
     78B  LEU*     3.0    24.5    +      -       -      +
     80B  SER*     1.3    70.8    -      -       -      +
     82B  LEU*     1.3    66.2    +      -       -      +
     83B  GLY      3.4     0.4    +      -       -      -
    106B  GLN*     5.7     2.7    -      -       -      -
    107B  THR*     3.4    21.0    -      -       -      +
    109B  ASN*     4.9     1.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 82 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50B  ALA*     4.1    22.9    -      -       +      -
     51B  MSE      5.8     0.2    -      -       -      +
     52B  LEU*     3.9    32.8    -      -       +      +
     53B  PRO      4.4     7.4    -      -       -      +
     54B  PRO*     4.7     7.0    -      -       +      -
     55B  ASN*     3.1    19.2    -      -       -      +
     56B  SER*     4.1     2.5    -      -       -      +
     57B  PHE*     3.1    54.3    +      -       +      +
     78B  LEU*     3.0    35.7    +      -       +      +
     79B  LEU      3.6     5.8    -      -       -      +
     80B  SER      3.0     0.6    -      -       -      -
     81B  SER*     1.3    84.9    -      -       -      +
     83B  GLY*     1.3    58.0    +      -       -      +
     84B  ALA      3.7     0.2    -      -       -      -
    282B  ALA*     4.8     4.0    -      -       +      -
----------------------------------------------------------
 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