Contacts of the helix formed by residues 1139 - 1150 (chain O) in PDB entry 6IY3


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 SER1139 (chain O).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56I    C      5.1     8.7    -      -       -      -
   1137O  THR      3.2     4.4    -      -       -      -
   1138O  LYS*     1.3    75.6    -      -       -      +
   1140O  ASP*     1.3    56.9    +      -       -      +
   1141O  GLU      3.6     0.7    -      -       -      -
   1142O  ARG*     3.5    33.1    -      -       -      +
   1143O  SER*     3.0    28.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP1140 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1137O  THR      5.1     0.7    -      -       -      +
   1138O  LYS*     2.9    12.0    +      -       +      +
   1139O  SER*     1.3    75.0    -      -       -      +
   1141O  GLU*     1.3    60.8    +      -       -      +
   1143O  SER*     2.8    24.5    +      -       -      -
   1144O  GLU*     2.9    16.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU1141 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1132O  ARG      5.6     1.3    -      -       -      +
   1137O  THR*     3.7    30.1    +      -       +      +
   1140O  ASP*     1.3    75.4    -      -       -      +
   1142O  ARG*     1.3    60.3    +      -       -      +
   1144O  GLU*     3.7    20.0    -      -       -      +
   1145O  LEU*     2.8    52.1    +      -       +      +
   1148O  LEU*     5.9     0.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG1142 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55I    A      2.3    48.9    +      -       -      -
     56I    C      4.7     9.9    +      -       -      -
    826O  SER*     5.6     3.4    +      -       -      -
   1133O  LEU*     4.1    24.6    -      -       +      +
   1134O  ASP      2.9    26.8    +      -       -      -
   1135O  GLY*     3.3    12.1    +      -       -      -
   1137O  THR*     3.7    25.1    -      -       +      +
   1138O  LYS*     5.2     1.1    -      -       -      +
   1139O  SER*     3.5    30.1    +      -       -      +
   1140O  ASP      3.1     0.6    -      -       -      -
   1141O  GLU*     1.3    79.6    -      -       -      +
   1143O  SER*     1.3    62.0    +      -       -      +
   1145O  LEU*     3.5    11.4    +      -       -      +
   1146O  LEU*     3.9    15.4    -      -       -      +
   1166O  GLY*     4.5    15.2    +      -       -      -
   1169O  GLY      5.8     0.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER1143 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1139O  SER*     3.0    14.6    +      -       -      -
   1140O  ASP*     2.8    24.3    +      -       -      -
   1142O  ARG*     1.3    77.1    -      -       -      +
   1144O  GLU*     1.3    60.0    +      -       -      +
   1146O  LEU*     4.1    19.6    +      -       -      +
   1147O  ARG*     5.3     3.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU1144 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1140O  ASP*     2.9    19.4    +      -       -      +
   1141O  GLU*     3.8    19.3    -      -       -      +
   1142O  ARG      3.2     0.4    -      -       -      -
   1143O  SER*     1.3    76.6    +      -       -      +
   1145O  LEU*     1.3    59.6    +      -       -      +
   1146O  LEU      3.1     9.9    +      -       -      -
   1147O  ARG*     3.2    48.3    +      -       -      +
   1148O  LEU*     3.3    38.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU1145 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1131O  LEU*     3.8    31.0    -      -       +      -
   1132O  ARG      3.6    24.0    -      -       -      +
   1133O  LEU*     4.4    18.8    -      -       +      -
   1137O  THR*     5.5     2.7    -      -       +      -
   1141O  GLU*     2.8    37.8    +      -       +      +
   1142O  ARG*     3.5     5.1    +      -       -      +
   1143O  SER      3.5     0.8    -      -       -      -
   1144O  GLU*     1.3    74.4    -      -       -      +
   1146O  LEU*     1.3    59.8    +      -       +      +
   1147O  ARG      3.2     0.7    -      -       -      -
   1148O  LEU*     3.2    25.6    +      -       +      +
   1149O  PHE*     3.0    28.6    +      -       -      +
   1159O  PHE*     4.5    13.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU1146 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1133O  LEU*     6.3     0.7    -      -       +      -
   1142O  ARG      3.9    14.6    -      -       -      +
   1143O  SER*     4.1    15.9    -      -       -      +
   1144O  GLU      3.1     0.8    +      -       -      -
   1145O  LEU*     1.3    79.6    -      -       +      +
   1147O  ARG*     1.3    59.4    +      -       +      +
   1149O  PHE*     4.9     2.5    -      -       +      -
   1150O  ASN*     2.9    48.2    +      -       -      +
   1169O  GLY      4.9     6.3    -      -       -      +
   1170O  LEU*     3.3    46.4    -      -       +      +
   1171O  ASN*     5.1     8.7    -      -       +      +
   1172O  LEU*     5.1     5.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG1147 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1143O  SER      5.3     1.4    +      -       -      -
   1144O  GLU*     3.2    43.0    +      -       -      +
   1146O  LEU*     1.3    79.2    -      -       +      +
   1148O  LEU*     1.3    66.0    +      -       +      +
   1150O  ASN*     3.5     4.3    -      -       -      -
   1151O  ALA*     3.2    25.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU1148 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1131O  LEU*     4.1    10.8    -      -       +      -
   1141O  GLU*     5.9     0.7    -      -       -      +
   1144O  GLU*     3.3    38.6    +      -       -      +
   1145O  LEU*     3.2    26.9    +      -       +      +
   1147O  ARG*     1.3    79.2    -      -       +      +
   1149O  PHE*     1.3    59.7    +      -       -      +
   1151O  ALA*     4.4     3.1    +      -       -      +
   1154O  SER*     3.4    13.7    +      -       -      -
   1156O  TYR*     3.7    19.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE1149 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1105O  ARG*     2.4    54.4    +      -       +      -
   1106O  VAL      5.1     0.4    -      -       -      -
   1107O  LEU*     4.7     1.6    -      -       +      -
   1131O  LEU*     3.9    14.8    -      -       +      +
   1145O  LEU      3.0    15.4    +      -       -      +
   1146O  LEU*     4.2     3.6    -      -       +      +
   1148O  LEU*     1.3    78.8    -      -       -      +
   1150O  ASN*     1.3    62.9    +      -       -      +
   1151O  ALA      3.3     1.6    -      -       -      -
   1154O  SER*     3.1    16.9    +      -       -      -
   1156O  TYR*     4.1    18.1    -      -       +      +
   1157O  LEU      4.0    16.2    -      -       -      -
   1158O  CYS      4.3     2.5    -      -       -      -
   1159O  PHE*     3.6    44.0    -      +       +      -
   1172O  LEU*     3.7    34.5    -      -       +      -
   1174O  THR*     4.0     4.3    -      -       -      -
   1175O  ALA*     4.3    13.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN1150 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1105O  ARG*     3.0     9.2    +      -       -      +
   1146O  LEU*     2.9    34.9    +      -       -      +
   1147O  ARG*     3.4     7.2    +      -       -      -
   1149O  PHE*     1.3    82.4    -      -       -      +
   1151O  ALA*     1.3    63.7    +      -       -      +
   1152O  PRO*     3.7     4.7    -      -       -      +
   1171O  ASN      5.7     0.2    +      -       -      -
   1172O  LEU*     4.3    19.4    -      -       -      +
   1173O  GLN*     5.3     4.2    +      -       -      +
   1174O  THR*     2.3    43.2    +      -       +      +
----------------------------------------------------------
 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