Contacts of the helix formed by residues 1167 - 1180 (chain J) in PDB entry 4XLQ


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 SER1167 (chain J).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    916J  TYR*     3.4    13.5    +      -       -      -
    920J  LEU*     3.8    16.6    -      -       -      +
   1145J  TYR*     3.8     7.6    -      -       -      -
   1165J  TYR      4.2     1.6    -      -       -      -
   1166J  LEU*     1.3    73.8    -      -       -      +
   1168J  LEU*     1.3    64.5    +      -       -      +
   1169J  GLU*     3.0     5.2    +      -       -      +
   1170J  ASP*     2.9    19.2    +      -       -      -
   1171J  VAL*     2.6    40.6    +      -       -      +
   1207J  TYR*     3.2    24.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU1168 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    776J  GLU*     5.6     4.5    -      -       -      +
    913J  ASP*     5.0    10.8    -      -       -      +
    916J  TYR*     3.6    43.0    +      -       +      +
    917J  GLN*     4.6    12.6    -      -       -      +
    920J  LEU*     5.6     0.7    -      -       +      -
   1141J  GLU*     3.8    27.1    -      -       +      +
   1145J  TYR*     3.7    14.2    -      -       +      -
   1167J  SER*     1.3    78.5    +      -       -      +
   1169J  GLU*     1.3    56.5    +      -       -      +
   1171J  VAL*     4.2     6.1    -      -       +      -
   1172J  HIS*     2.9    67.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU1169 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    920J  LEU*     6.1     3.1    -      -       +      -
   1158J  ARG*     4.8    11.6    +      -       -      -
   1164J  ARG*     4.9     6.2    +      -       -      -
   1167J  SER*     3.0     4.6    +      -       -      +
   1168J  LEU*     1.3    77.3    -      -       -      +
   1170J  ASP*     1.3    74.5    +      -       -      +
   1172J  HIS*     3.3     5.5    +      -       -      +
   1173J  PHE*     2.9    34.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP1170 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1160J  LEU*     5.4     3.1    -      -       +      -
   1164J  ARG*     3.0    40.0    +      -       +      +
   1165J  TYR      3.1    16.4    -      -       -      +
   1166J  LEU*     3.6    11.8    -      -       +      -
   1167J  SER*     3.2    32.2    +      -       -      +
   1169J  GLU*     1.3    84.8    -      -       -      +
   1171J  VAL*     1.3    62.4    +      -       -      +
   1173J  PHE*     3.0    11.5    -      -       -      +
   1174J  LEU*     2.9    29.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL1171 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1140J  ILE*     3.6    31.0    -      -       +      +
   1141J  GLU*     4.7    10.1    -      -       +      -
   1144J  LEU*     4.0    10.5    -      -       +      +
   1145J  TYR*     3.6    35.9    -      -       +      +
   1166J  LEU*     4.4     6.7    -      -       +      -
   1167J  SER      2.6    24.3    +      -       -      +
   1168J  LEU*     3.8     6.7    -      -       -      +
   1170J  ASP*     1.3    72.5    -      -       -      +
   1172J  HIS*     1.3    63.2    +      -       +      +
   1174J  LEU*     3.0    14.8    +      -       +      +
   1175J  ILE*     2.9    35.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with HIS1172 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1137J  ARG*     6.0     1.2    -      -       -      +
   1141J  GLU*     4.3    11.8    +      -       +      -
   1168J  LEU*     2.9    53.9    +      -       +      +
   1169J  GLU*     3.8     4.7    -      -       -      +
   1171J  VAL*     1.3    78.8    -      -       +      +
   1173J  PHE*     1.3    66.3    +      -       -      +
   1175J  ILE*     3.1    26.3    +      -       +      +
   1176J  LYS*     2.9    33.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE1173 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1155J  ALA*     5.2     0.9    -      -       +      -
   1156J  LEU*     4.0    24.7    -      -       +      +
   1158J  ARG*     3.7    57.7    -      -       +      -
   1160J  LEU*     6.1     4.9    -      -       +      -
   1164J  ARG*     4.8     9.9    -      -       -      +
   1169J  GLU*     2.9    25.7    +      -       +      +
   1170J  ASP*     3.0    16.4    +      -       -      +
   1172J  HIS*     1.3    75.5    -      -       -      +
   1174J  LEU*     1.3    64.0    +      -       +      +
   1176J  LYS*     3.5     7.1    +      -       -      +
   1177J  ALA*     3.0    25.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU1174 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1122J  LEU*     5.2    10.5    -      -       +      -
   1140J  ILE*     5.8     1.3    -      -       +      -
   1144J  LEU*     4.3    16.2    -      -       +      -
   1149J  LEU*     5.6     3.4    -      -       +      -
   1153J  VAL*     5.9     6.1    -      -       +      -
   1160J  LEU*     4.9    20.2    -      -       +      -
   1166J  LEU*     3.5    33.0    -      -       +      -
   1170J  ASP*     2.9    23.2    +      -       +      +
   1171J  VAL*     3.2    13.2    -      -       +      +
   1173J  PHE*     1.3    78.7    -      -       +      +
   1175J  ILE*     1.3    61.4    +      -       +      +
   1177J  ALA*     3.6     5.5    -      -       -      +
   1178J  ALA*     2.8    34.8    +      -       -      +
   1183J  VAL*     4.5     4.6    -      -       +      +
   1186J  VAL*     4.4    14.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE1175 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1122J  LEU*     6.0     1.3    -      -       -      -
   1134J  LEU*     5.5    11.7    -      -       +      +
   1137J  ARG*     5.1    17.5    -      -       +      +
   1140J  ILE*     4.2    26.0    -      -       +      -
   1141J  GLU*     5.6     1.3    -      -       +      -
   1171J  VAL*     2.9    24.1    +      -       +      +
   1172J  HIS*     3.1    36.8    +      -       +      +
   1174J  LEU*     1.3    76.1    -      -       -      +
   1176J  LYS*     1.3    60.1    +      -       +      +
   1178J  ALA*     3.4     4.2    +      -       -      +
   1179J  GLU*     2.9    55.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS1176 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1130D  ARG*     3.7    36.8    +      -       -      +
   1156J  LEU*     4.7     9.0    -      -       +      -
   1172J  HIS*     2.9    24.7    +      -       +      +
   1173J  PHE*     3.9     5.6    -      -       -      +
   1175J  ILE*     1.3    75.1    -      -       +      +
   1177J  ALA*     1.3    63.0    +      -       -      +
   1179J  GLU*     3.3    11.0    +      -       -      +
   1180J  ALA*     3.0    22.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA1177 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1155J  ALA*     3.8    19.7    -      -       +      -
   1156J  LEU*     3.7    30.7    -      -       +      +
   1173J  PHE*     3.0    19.5    +      -       +      +
   1174J  LEU*     3.6     7.2    -      -       -      +
   1176J  LYS*     1.3    76.4    -      -       -      +
   1178J  ALA*     1.3    59.7    +      -       -      +
   1180J  ALA*     2.8    20.3    +      -       -      +
   1182J  GLU*     3.1    18.9    +      -       +      +
   1183J  VAL*     4.3     4.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA1178 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1122J  LEU*     3.4    24.9    -      -       +      -
   1123J  PHE*     3.5    21.8    -      -       +      -
   1134J  LEU*     5.7     2.9    -      -       +      -
   1174J  LEU      2.8    20.5    +      -       -      +
   1175J  ILE*     3.8     4.0    -      -       -      +
   1177J  ALA*     1.3    71.9    -      -       -      +
   1179J  GLU*     1.3    54.7    +      -       -      +
   1181J  GLY*     2.7    24.8    +      -       -      -
   1183J  VAL*     3.3    29.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU1179 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1130D  ARG*     4.1     9.6    +      -       -      +
   1131D  THR*     3.1    44.2    -      -       +      +
   1132D  LEU      4.1     1.0    +      -       -      +
   1123J  PHE*     4.8     5.6    -      -       -      -
   1134J  LEU*     4.6    22.2    -      -       +      +
   1175J  ILE*     2.9    45.8    +      -       +      +
   1176J  LYS*     3.3    13.4    +      -       -      +
   1178J  ALA*     1.3    75.8    -      -       -      +
   1180J  ALA*     1.3    56.9    +      -       -      +
   1181J  GLY      3.0     3.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA1180 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1125D  MET*     3.1    28.0    -      -       +      +
   1130D  ARG*     4.2    19.1    -      -       +      +
   1131D  THR      3.8    10.5    -      -       -      +
   1132D  LEU*     3.7     7.0    -      -       -      +
   1156J  LEU*     4.2    11.4    -      -       +      -
   1176J  LYS      3.0    10.4    +      -       -      +
   1177J  ALA      2.8    12.3    +      -       -      +
   1179J  GLU*     1.3    75.1    -      -       -      +
   1181J  GLY*     1.3    62.2    +      -       -      +
   1182J  GLU*     3.3    14.1    +      -       +      +
----------------------------------------------------------
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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