Contacts of the helix formed by residues 179 - 193 (chain B) in PDB entry 4EOZ


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 ASP 179 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168B  MSE      3.3    26.6    -      -       +      +
    178B  VAL*     1.3    71.8    -      -       -      +
    180B  ARG*     1.3    61.3    +      -       -      +
    181B  GLY*     3.3     7.4    +      -       -      -
    182B  ALA*     3.3    33.6    +      -       +      +
    183B  ILE*     3.5     7.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 180 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172B  GLU*     2.9    43.7    +      -       -      +
    178B  VAL*     3.0    12.9    +      -       +      +
    179B  ASP*     1.3    71.8    +      -       -      +
    181B  GLY*     1.3    65.2    +      -       -      +
    183B  ILE*     3.4     6.8    +      -       -      +
    184B  ARG*     3.1    23.8    +      -       -      +
    243B  GLU*     5.3     2.4    +      -       -      +
    246B  GLU*     4.1     6.1    +      -       -      +
    247B  ARG*     4.0    24.5    -      -       -      +
    250B  HIS*     3.6    37.9    +      -       +      +
    251B  CYS*     3.3    29.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 181 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    179B  ASP*     3.3     7.2    +      -       -      -
    180B  ARG*     1.3    79.6    -      -       -      +
    182B  ALA*     1.3    56.4    +      -       -      +
    184B  ARG*     3.2    22.5    +      -       -      +
    185B  ASN*     2.9    37.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 182 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102B  LEU*     4.1    31.3    -      -       +      +
    168B  MSE      4.6     1.6    -      -       +      -
    179B  ASP*     3.3    34.4    +      -       +      +
    180B  ARG      3.3     1.0    -      -       -      -
    181B  GLY*     1.3    76.2    -      -       -      +
    183B  ILE*     1.3    60.5    +      -       -      +
    185B  ASN*     3.3     9.6    +      -       -      +
    186B  ALA*     3.1    23.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 183 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    165B  LEU*     4.0    20.6    -      -       +      +
    168B  MSE      4.1    35.9    -      -       +      -
    169B  ILE*     4.4    19.1    -      -       +      -
    172B  GLU*     6.1     0.9    -      -       -      +
    178B  VAL*     4.2    11.9    -      -       +      -
    179B  ASP      3.5    14.8    -      -       -      +
    180B  ARG*     3.4    11.2    +      -       -      +
    181B  GLY      3.2     0.2    -      -       -      -
    182B  ALA*     1.3    72.1    -      -       -      +
    184B  ARG*     1.3    60.6    +      -       -      +
    186B  ALA*     3.1     3.3    +      -       -      +
    187B  CYS*     2.8    37.8    +      -       -      -
    205B  PHE*     5.4     0.2    -      -       +      -
    251B  CYS*     3.8    24.5    -      -       +      +
    252B  LEU*     3.8    20.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 184 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    180B  ARG      3.1    12.7    +      -       -      +
    181B  GLY*     3.5    18.9    -      -       -      +
    183B  ILE*     1.3    81.4    -      -       -      +
    185B  ASN*     1.3    81.8    +      -       -      +
    187B  CYS*     3.5     2.1    +      -       -      +
    188B  GLN*     3.1    37.1    +      -       +      +
    250B  HIS      4.0    16.6    -      -       -      +
    251B  CYS      3.2    19.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 185 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106B  ASN*     3.4    41.5    -      -       +      +
    109B  TRP*     5.0     1.6    +      -       -      -
    181B  GLY      2.9    21.5    +      -       -      +
    182B  ALA*     3.7     8.2    -      -       -      +
    184B  ARG*     1.3   100.9    +      -       -      +
    186B  ALA*     1.3    60.4    +      -       -      +
    188B  GLN*     3.6    11.7    +      -       -      +
    189B  MSE      3.2    23.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 186 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102B  LEU*     5.2     4.3    -      -       +      -
    105B  LEU*     6.1     0.4    -      -       +      -
    106B  ASN*     5.5     0.7    -      -       -      -
    161B  LEU*     4.3    12.8    -      -       +      -
    165B  LEU*     3.7    27.8    -      -       +      -
    182B  ALA      3.1    14.2    +      -       -      +
    183B  ILE      3.1     7.6    +      -       -      +
    185B  ASN*     1.3    75.2    -      -       -      +
    187B  CYS*     1.3    66.4    +      -       -      +
    189B  MSE      3.3    14.2    -      -       +      +
    190B  LEU*     3.1    28.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 187 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    165B  LEU*     4.9     4.3    -      -       -      -
    183B  ILE*     2.8    27.5    +      -       -      +
    184B  ARG      3.9     4.0    -      -       -      +
    185B  ASN      3.4     0.2    -      -       -      -
    186B  ALA*     1.3    73.4    -      -       -      +
    188B  GLN*     1.3    56.6    +      -       -      +
    190B  LEU*     3.2     6.2    +      -       -      +
    191B  MSE      2.9    32.7    +      -       -      +
    201B  TYR*     3.7    29.3    -      -       +      -
    205B  PHE*     4.2    13.7    -      -       -      -
    251B  CYS      4.0     7.4    -      -       -      +
    252B  LEU*     4.0    26.2    -      -       -      -
    253B  ASP*     4.5     8.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 188 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109B  TRP*     5.6     2.7    -      -       -      +
    184B  ARG*     3.1    30.7    +      -       +      +
    185B  ASN*     3.9    14.3    -      -       -      +
    186B  ALA      3.3     0.2    -      -       -      -
    187B  CYS*     1.3    72.9    -      -       -      +
    189B  MSE      1.3    62.8    +      -       -      +
    191B  MSE      3.2    12.9    -      -       -      +
    192B  ILE*     3.0    45.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MSE 189 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105B  LEU*     4.2    17.9    -      -       +      -
    106B  ASN*     5.6     2.0    -      -       -      +
    109B  TRP*     3.5    56.5    -      -       +      +
    147B  PHE*     4.2     3.6    -      -       -      -
    152B  VAL*     4.0    21.3    -      -       +      -
    161B  LEU*     4.0    18.4    -      -       +      -
    185B  ASN      3.2    11.4    +      -       -      +
    186B  ALA*     3.3    28.9    -      -       +      +
    188B  GLN*     1.3    79.8    -      -       -      +
    190B  LEU*     1.3    79.7    +      -       +      +
    192B  ILE*     3.1     4.2    +      -       -      +
    193B  LEU*     3.0    33.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 190 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    152B  VAL*     3.9    27.4    -      -       +      -
    161B  LEU*     4.1    13.0    -      -       +      -
    165B  LEU*     4.9     5.8    -      -       +      -
    186B  ALA      3.1    15.1    +      -       -      +
    187B  CYS*     3.2     9.2    +      -       -      +
    189B  MSE      1.3    90.4    -      -       +      +
    191B  MSE      1.3    63.8    +      -       -      +
    193B  LEU*     3.2    16.4    +      -       +      +
    194B  GLY*     3.5     6.8    +      -       -      -
    200B  VAL*     3.6    21.1    -      -       +      +
    201B  TYR*     3.8    20.6    +      -       +      +
    204B  ASP*     4.5    15.5    -      -       +      -
    205B  PHE*     3.9    28.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MSE 191 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    187B  CYS      2.9    23.4    +      -       -      +
    188B  GLN*     3.2    13.5    -      -       -      +
    190B  LEU*     1.3    72.2    -      -       -      +
    192B  ILE*     1.3    63.1    +      -       +      +
    194B  GLY*     3.2    11.1    +      -       -      -
    195B  LEU      4.3     0.3    +      -       -      -
    196B  GLU*     4.8     1.7    +      -       -      -
    197B  GLY*     3.4    23.2    +      -       -      +
    198B  ARG*     3.9    25.4    -      -       +      +
    201B  TYR*     3.5    30.7    -      -       +      +
    253B  ASP*     3.4    40.4    -      -       +      +
    255B  SER*     5.2     0.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 192 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109B  TRP*     3.9    30.7    -      -       +      +
    113B  GLN*     4.7     8.5    -      -       -      +
    140B  TYR*     5.2     5.4    -      -       +      +
    144B  LEU*     3.7    30.5    -      -       +      +
    188B  GLN*     3.0    41.0    +      -       +      +
    189B  MSE      3.1     5.4    +      -       -      +
    191B  MSE      1.3    73.5    -      -       +      +
    193B  LEU*     1.3    57.7    +      -       -      +
    194B  GLY      3.0     5.1    +      -       -      -
    195B  LEU*     3.1    13.3    +      -       -      -
    196B  GLU      4.5     2.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 193 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109B  TRP*     3.8    23.8    -      -       +      -
    144B  LEU*     3.7    30.7    -      -       +      +
    147B  PHE*     4.4     4.0    -      -       +      -
    148B  ARG*     3.4    43.5    +      -       +      +
    152B  VAL*     3.8    38.8    -      -       +      -
    189B  MSE      3.0    32.0    +      -       +      +
    190B  LEU*     3.6    12.6    -      -       +      +
    191B  MSE      3.2     0.6    -      -       -      -
    192B  ILE*     1.3    75.9    -      -       -      +
    194B  GLY*     1.3    54.9    +      -       -      +
    195B  LEU*     3.3     8.4    +      -       -      +
    200B  VAL*     3.9    10.5    -      -       +      -
----------------------------------------------------------
 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