Contacts of the helix formed by residues 1038 - 1051 (chain R) in PDB entry 3SN6


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 SER1038 (chain R).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1025R  TYR*     3.8     7.6    -      -       -      -
   1036R  SER*     3.1    15.0    +      -       -      +
   1037R  PRO*     1.3    81.2    -      -       -      +
   1039R  LEU*     1.3    65.0    +      -       -      +
   1040R  ASN*     3.5    12.1    +      -       -      +
   1041R  ALA*     3.6    28.4    +      -       -      +
   1042R  ALA      4.3     2.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU1039 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1017R  ILE*     5.3     3.0    -      -       +      +
   1019R  LYS*     6.2     0.9    -      -       -      -
   1025R  TYR*     3.2    45.5    -      -       +      +
   1037R  PRO      3.6     2.0    +      -       -      -
   1038R  SER*     1.3    75.2    +      -       -      +
   1040R  ASN*     1.3    63.7    +      -       +      +
   1041R  ALA      3.2     1.2    +      -       -      -
   1042R  ALA      3.9     4.3    +      -       -      -
   1043R  LYS*     3.8    20.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN1040 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1038R  SER*     3.4     6.4    +      -       -      +
   1039R  LEU*     1.3    79.2    -      -       +      +
   1041R  ALA*     1.3    62.5    +      -       -      +
   1042R  ALA      3.4     0.7    -      -       -      -
   1043R  LYS*     3.1    41.8    +      -       -      +
   1044R  SER*     3.7    17.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA1041 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1034R  THR*     3.9     9.2    -      -       +      +
   1036R  SER*     3.9    20.4    -      -       -      +
   1038R  SER*     3.6    30.0    +      -       -      +
   1039R  LEU      3.2     0.8    -      -       -      -
   1040R  ASN*     1.3    77.5    -      -       -      +
   1042R  ALA*     1.3    64.6    +      -       -      +
   1044R  SER*     3.6    16.9    +      -       -      -
   1045R  GLU*     3.8     5.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA1042 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1017R  ILE*     4.3     3.6    -      -       +      -
   1025R  TYR*     3.4    43.5    -      -       +      -
   1033R  LEU*     3.4    26.5    -      -       +      +
   1034R  THR*     3.4    14.4    -      -       +      +
   1038R  SER      4.3     0.6    +      -       -      -
   1039R  LEU      3.9     2.8    +      -       -      +
   1040R  ASN      3.4     0.2    -      -       -      -
   1041R  ALA*     1.3    76.0    -      -       -      +
   1043R  LYS*     1.3    65.7    +      -       -      +
   1044R  SER      3.1     2.5    -      -       -      -
   1045R  GLU*     3.1     4.5    +      -       -      -
   1046R  LEU      2.9    18.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS1043 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1017R  ILE*     3.7    20.6    -      -       +      -
   1039R  LEU*     3.8    17.4    -      -       +      +
   1040R  ASN*     3.1    44.2    -      -       -      +
   1041R  ALA      3.4     0.6    -      -       -      -
   1042R  ALA*     1.3    77.0    -      -       -      +
   1044R  SER*     1.3    57.4    +      -       -      +
   1046R  LEU*     3.2     9.2    -      -       +      +
   1047R  ASP*     2.7    39.7    +      -       -      +
   1054R  THR      4.7     4.3    -      -       -      +
   1055R  ASN*     3.5    37.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER1044 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1040R  ASN*     3.7     9.6    +      -       -      -
   1041R  ALA*     3.6    13.6    +      -       -      -
   1042R  ALA      3.1     0.6    -      -       -      -
   1043R  LYS*     1.3    78.0    -      -       -      +
   1045R  GLU*     1.3    57.5    +      -       -      +
   1047R  ASP*     3.0     9.6    +      -       -      +
   1048R  LYS*     2.9    33.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU1045 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1033R  LEU*     3.8    30.3    -      -       +      +
   1034R  THR*     5.5     0.9    -      -       -      -
   1041R  ALA      3.8     5.5    +      -       -      +
   1042R  ALA      3.1     8.3    +      -       -      +
   1044R  SER*     1.3    79.4    -      -       -      +
   1046R  LEU*     1.3    56.7    +      -       -      +
   1048R  LYS*     3.8     7.1    -      -       -      +
   1049R  ALA*     2.9    32.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1046 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1017R  ILE*     3.9     8.7    -      -       +      -
   1027R  ILE*     3.8    27.8    -      -       +      -
   1033R  LEU*     3.4    24.0    -      -       +      +
   1042R  ALA      2.9     5.7    +      -       -      +
   1043R  LYS*     3.2    10.8    -      -       -      +
   1045R  GLU*     1.3    78.9    -      -       -      +
   1047R  ASP*     1.3    57.0    +      -       -      +
   1049R  ALA*     4.4     1.1    -      -       +      -
   1050R  ILE*     2.9    46.4    +      -       +      +
   1054R  THR*     3.6    18.4    -      -       +      -
   1056R  GLY*     3.6    31.4    -      -       -      +
   1058R  ILE*     3.6    22.4    -      -       +      -
   1066R  LEU*     4.8     3.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP1047 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1043R  LYS*     2.7    23.3    +      -       -      +
   1044R  SER*     3.0     8.7    +      -       -      +
   1046R  LEU*     1.3    75.8    -      -       -      +
   1048R  LYS*     1.3    61.1    +      -       +      +
   1050R  ILE*     4.2     1.1    -      -       -      -
   1051R  GLY*     2.8    30.1    +      -       -      -
   1052R  ARG      2.9    25.1    +      -       -      +
   1053R  ASN*     3.4    22.0    -      -       -      +
   1054R  THR*     3.2    26.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS1048 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1044R  SER*     2.9    18.6    +      -       -      +
   1045R  GLU*     4.1     7.2    -      -       -      +
   1047R  ASP*     1.3    77.3    -      -       +      +
   1049R  ALA*     1.3    63.1    +      -       -      +
   1051R  GLY*     4.3     3.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA1049 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1031R  HIS*     5.3     2.7    -      -       +      -
   1033R  LEU*     5.0     5.4    -      -       +      -
   1045R  GLU      2.9    20.5    +      -       -      +
   1046R  LEU*     3.7     5.4    -      -       -      +
   1048R  LYS*     1.3    78.4    -      -       -      +
   1050R  ILE*     1.3    67.7    +      -       +      +
   1066R  LEU*     4.2    24.2    -      -       +      -
   1069R  GLN*     5.0    12.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE1050 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1046R  LEU*     2.9    38.6    +      -       +      +
   1049R  ALA*     1.3    77.1    -      -       +      +
   1051R  GLY*     1.3    62.6    +      -       -      +
   1052R  ARG*     3.4    41.2    -      -       +      +
   1054R  THR*     3.3    32.1    -      -       +      -
   1058R  ILE*     4.3     9.0    -      -       +      -
   1062R  GLU*     4.1    26.9    -      -       +      +
   1066R  LEU*     4.6    15.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY1051 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1047R  ASP      2.8    19.9    +      -       -      -
   1048R  LYS*     4.8     3.8    -      -       -      -
   1049R  ALA      3.3     2.4    -      -       -      -
   1050R  ILE*     1.3    75.1    -      -       -      +
   1052R  ARG*     1.3    59.2    +      -       -      +
----------------------------------------------------------
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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