Contacts of the helix formed by residues 1138 - 1150 (chain I) in PDB entry 6PSU


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 VAL1138 (chain I).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1137I  GLU*     1.3    78.7    -      -       -      +
   1139I  ALA*     1.3    67.1    +      -       +      +
   1140I  LYS      3.4     1.1    -      -       -      -
   1141I  LEU*     3.7     5.7    -      -       -      +
   1142I  ARG*     2.9    35.5    +      -       -      +
   1166I  ASP*     3.0    38.6    -      -       -      +
   1169I  VAL*     4.8     6.9    -      -       +      +
   1170I  MET*     4.0    14.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA1139 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1137I  GLU*     3.9     3.7    -      -       +      +
   1138I  VAL*     1.3    86.4    -      -       +      +
   1140I  LYS*     1.3    58.3    +      -       -      +
   1142I  ARG*     3.2    14.6    +      -       -      +
   1143I  GLU*     2.9    32.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS1140 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1131I  MET*     3.5    28.1    -      -       +      +
   1136I  GLN*     3.0    38.9    -      -       -      +
   1137I  GLU*     3.0    35.0    +      -       +      +
   1138I  VAL      3.4     0.4    -      -       -      -
   1139I  ALA*     1.3    75.3    -      -       -      +
   1141I  LEU*     1.3    65.1    +      -       -      +
   1143I  GLU*     3.2    12.9    +      -       +      +
   1144I  PHE*     2.9    25.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU1141 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1128I  ILE*     4.3    12.1    -      -       +      +
   1131I  MET*     3.3    52.2    -      -       +      +
   1132I  LEU*     3.6    26.0    -      -       +      -
   1136I  GLN*     5.3     0.9    -      -       +      -
   1137I  GLU*     4.1    15.0    -      -       -      +
   1138I  VAL*     3.7     8.0    -      -       -      +
   1139I  ALA      3.3     0.2    -      -       -      -
   1140I  LYS*     1.3    80.5    -      -       -      +
   1142I  ARG*     1.3    61.7    +      -       -      +
   1144I  PHE*     3.9     1.0    -      -       -      +
   1145I  ILE*     3.0    36.0    +      -       +      +
   1169I  VAL*     4.2     8.5    -      -       +      +
   1170I  MET*     3.8    19.7    -      -       +      -
   1173I  ALA*     3.8    17.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG1142 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1138I  VAL*     2.9    23.8    +      -       -      +
   1139I  ALA*     3.4    11.9    -      -       -      +
   1140I  LYS      3.2     0.2    -      -       -      -
   1141I  LEU*     1.3    74.8    -      -       -      +
   1143I  GLU*     1.3    59.4    +      -       -      +
   1145I  ILE*     4.7     1.6    -      -       -      -
   1146I  GLN*     2.9    35.3    +      -       +      +
   1161I  LEU*     3.2    47.5    +      -       +      +
   1164I  PHE      4.7     1.1    +      -       -      -
   1165I  SER*     3.1    39.4    -      -       -      +
   1166I  ASP*     4.0    15.1    +      -       -      +
   1169I  VAL*     4.3    11.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU1143 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1139I  ALA*     2.9    15.9    +      -       -      +
   1140I  LYS*     3.4    16.4    -      -       +      +
   1142I  ARG*     1.3    77.7    -      -       -      +
   1144I  PHE*     1.3    62.8    +      -       -      +
   1146I  GLN*     3.6     5.0    -      -       -      +
   1147I  ARG*     3.0    29.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE1144 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1124I  ILE*     3.9    22.0    -      -       +      -
   1127I  LYS*     3.5    36.1    -      -       +      -
   1128I  ILE*     3.4    33.0    -      -       +      -
   1131I  MET*     3.7    24.5    -      -       +      -
   1140I  LYS*     2.9    16.7    +      -       +      +
   1141I  LEU      3.9     1.6    -      -       -      +
   1143I  GLU*     1.3    74.8    -      -       -      +
   1145I  ILE*     1.3    71.7    +      -       +      +
   1147I  ARG*     2.9    27.5    -      -       -      +
   1148I  ALA*     2.9    21.1    +      -       +      +
   1201I  LEU*     4.1    25.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE1145 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1128I  ILE*     3.6    37.0    -      -       +      -
   1141I  LEU*     3.0    27.0    +      -       +      +
   1142I  ARG*     4.0     3.8    -      -       -      +
   1144I  PHE*     1.3    78.9    -      -       -      +
   1146I  GLN*     1.3    60.1    +      -       -      +
   1148I  ALA*     3.1     6.2    +      -       -      +
   1149I  TYR*     2.9    56.1    +      -       +      -
   1161I  LEU*     4.7    11.0    -      -       +      -
   1169I  VAL*     4.8     6.7    -      -       +      +
   1172I  LEU*     3.8    31.0    -      -       +      +
   1173I  ALA*     4.4    13.9    -      -       +      -
   1176I  LEU*     4.8     0.4    -      -       +      -
   1180I  MET*     5.7     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN1146 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1142I  ARG*     2.9    21.5    +      -       +      +
   1143I  GLU*     3.6     6.1    -      -       -      +
   1145I  ILE*     1.3    79.3    -      -       -      +
   1147I  ARG*     1.3    53.3    +      -       -      +
   1149I  TYR*     3.1    13.9    +      -       -      +
   1150I  ASP*     2.7    38.5    +      -       -      +
   1159I  VAL      3.3    17.9    +      -       -      -
   1160I  ASP*     3.0    30.7    -      -       -      +
   1161I  LEU*     3.0    25.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG1147 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1143I  GLU*     3.0    22.1    +      -       -      +
   1144I  PHE*     2.9    37.5    -      -       +      +
   1146I  GLN*     1.3    77.2    -      -       -      +
   1148I  ALA*     1.3    57.3    +      -       -      +
   1150I  ASP*     2.9    28.9    -      -       -      +
   1151I  LEU*     4.1     6.4    -      -       -      +
   1201I  LEU*     3.7    29.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA1148 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13I  LYS*     3.8    15.8    -      -       -      +
   1124I  ILE*     4.3    10.5    -      -       +      -
   1144I  PHE*     2.9    15.9    +      -       +      +
   1145I  ILE*     3.1    10.7    +      -       -      +
   1147I  ARG*     1.3    80.8    -      -       -      +
   1149I  TYR*     1.3    60.5    +      -       -      +
   1150I  ASP      3.2     1.6    +      -       -      -
   1151I  LEU*     4.0     9.8    -      -       -      +
   1180I  MET*     3.8    23.3    -      -       +      +
   1198I  LEU*     5.4     3.0    -      -       +      +
   1201I  LEU*     3.7    27.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR1149 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11I  ILE*     2.6    48.0    +      -       +      +
     12I  ARG      4.4     0.2    -      -       -      -
     13I  LYS*     3.7    38.7    +      -       +      -
   1145I  ILE*     2.9    47.5    +      -       +      +
   1146I  GLN*     3.1    10.9    +      -       -      +
   1148I  ALA*     1.3    75.4    -      -       -      +
   1150I  ASP*     1.3    59.1    +      -       -      +
   1155I  VAL*     5.6     2.8    -      -       -      +
   1157I  GLN*     4.1    12.1    +      -       -      +
   1159I  VAL*     3.4    39.1    -      -       +      +
   1161I  LEU*     5.5     3.1    -      -       +      -
   1172I  LEU*     4.0     9.0    -      -       +      -
   1176I  LEU*     3.0    24.2    -      -       +      +
   1180I  MET*     3.8    14.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP1150 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13I  LYS*     5.2     0.2    -      -       -      +
   1146I  GLN*     2.7    31.5    +      -       -      +
   1147I  ARG*     2.9    23.1    -      -       -      +
   1148I  ALA      3.1     0.4    -      -       -      -
   1149I  TYR*     1.3    78.0    -      -       -      +
   1151I  LEU*     1.3    64.5    +      -       -      +
   1155I  VAL*     5.4     6.7    -      -       +      -
   1158I  LYS*     5.8     9.6    -      -       +      -
   1159I  VAL      5.6     2.0    -      -       -      +
----------------------------------------------------------
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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