Contacts of the helix formed by residues 186 - 197 (chain A) in PDB entry 6BSL


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 SER 186 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145A  ASP*     2.6    27.9    +      -       -      -
    147A  ASP*     3.4    42.2    -      -       -      -
    148A  SER*     3.7     0.2    -      -       -      -
    181A  GLN*     4.3     0.2    -      -       -      +
    184A  ARG*     3.4     4.4    +      -       -      +
    185A  LEU*     1.3    77.2    -      -       -      +
    187A  LYS*     1.3    65.3    +      -       -      +
    188A  GLY      3.3     1.3    +      -       -      -
    189A  ASP*     2.9    21.6    +      -       -      -
    190A  ILE*     3.1    24.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 187 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    147A  ASP*     5.0     0.8    +      -       -      -
    186A  SER*     1.3    73.6    -      -       -      +
    188A  GLY*     1.3    57.1    +      -       -      +
    190A  ILE*     3.4     9.1    +      -       -      +
    191A  ALA*     3.0    30.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 188 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    142A  GLU*     4.3     6.4    -      -       -      +
    145A  ASP*     3.3    21.6    +      -       -      -
    186A  SER*     3.1     3.8    +      -       -      -
    187A  LYS*     1.3    77.1    -      -       -      +
    189A  ASP*     1.3    58.4    +      -       -      +
    191A  ALA*     3.9     5.7    -      -       -      +
    192A  GLN*     2.9    35.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 189 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  TRP*     4.9     4.2    -      -       +      -
    101A  PHE*     4.4     7.2    -      -       +      -
    104A  GLU*     5.1     0.5    -      -       -      +
    145A  ASP*     3.4     0.5    +      -       -      +
    148A  SER*     2.6    28.4    +      -       -      -
    149A  ILE*     2.8    37.7    +      -       -      +
    150A  MET*     4.6     3.4    -      -       -      +
    185A  LEU*     3.8    16.3    -      -       +      -
    186A  SER*     2.9    39.4    +      -       -      +
    188A  GLY*     1.3    72.4    -      -       -      +
    190A  ILE*     1.3    58.8    +      -       -      +
    192A  GLN*     3.8     6.6    -      -       -      +
    193A  ALA*     2.9    32.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 190 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  HIS*     3.4    62.8    -      -       +      +
     42A  THR*     4.4     3.1    -      -       +      +
    185A  LEU*     3.9    26.7    -      -       +      +
    186A  SER      3.1    18.5    +      -       -      +
    187A  LYS*     3.7     7.4    -      -       -      +
    189A  ASP*     1.3    74.0    -      -       -      +
    191A  ALA*     1.3    65.3    +      -       -      +
    193A  ALA*     3.4     4.6    +      -       -      +
    194A  ARG*     3.0    46.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 191 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    142A  GLU*     3.7    21.8    -      -       -      +
    187A  LYS      3.0    17.0    +      -       -      +
    188A  GLY*     3.9     3.4    -      -       -      +
    190A  ILE*     1.3    78.8    -      -       -      +
    192A  GLN*     1.3    61.4    +      -       -      +
    194A  ARG*     3.5     9.4    +      -       -      +
    195A  LYS*     3.2    26.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 192 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     -1A  ACE      3.0    28.8    +      -       -      +
      2A  ALA*     4.5     1.4    -      -       +      +
    101A  PHE*     3.6    24.7    -      -       +      -
    107A  ARG*     3.9     0.8    -      -       -      +
    139A  SER*     2.9    24.8    +      -       -      +
    140A  LEU*     3.9     9.5    -      -       +      +
    142A  GLU*     3.6    28.2    +      -       +      +
    188A  GLY      2.9    17.1    +      -       -      +
    189A  ASP*     4.0     3.3    -      -       -      +
    191A  ALA*     1.3    75.8    -      -       -      +
    193A  ALA*     1.3    59.7    +      -       -      +
    195A  LYS*     3.3     4.3    +      -       -      +
    196A  LEU*     2.9    28.1    +      -       -      +
    303A   ZN      2.3    29.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 193 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  TRP*     3.7    26.7    -      -       +      -
     42A  THR*     3.9    13.5    -      -       +      -
     44A  VAL*     5.7     1.3    -      -       +      +
     99A  VAL*     5.4     0.7    -      -       +      -
    101A  PHE*     3.8    15.6    -      -       +      -
    189A  ASP      2.9    18.9    +      -       -      +
    190A  ILE      3.9     3.4    -      -       -      +
    192A  GLN*     1.3    74.8    -      -       -      +
    194A  ARG*     1.3    56.6    +      -       -      +
    196A  LEU*     3.3     2.9    +      -       -      -
    197A  TYR*     2.9    40.7    +      -       +      +
    199A  CYS*     4.9     0.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 194 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40A  LYS      5.4     0.4    +      -       -      -
     41A  HIS*     2.8    38.4    +      -       -      +
     42A  THR*     4.5     5.3    -      -       -      +
    190A  ILE*     3.0    36.0    +      -       -      +
    191A  ALA*     3.7     9.3    -      -       -      +
    193A  ALA*     1.3    77.2    -      -       -      +
    195A  LYS*     1.3    56.6    +      -       +      +
    197A  TYR      3.6     0.2    +      -       -      -
    198A  LYS*     2.9    24.1    +      -       -      -
    199A  CYS*     2.9    39.2    +      -       +      +
    200A  PRO      5.9     1.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 195 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    140A  LEU*     2.9    47.2    +      -       +      +
    141A  GLY*     4.2     7.3    +      -       -      -
    142A  GLU*     2.8    32.7    +      -       +      +
    191A  ALA*     3.2    11.6    +      -       -      +
    192A  GLN      3.6     7.4    -      -       -      +
    194A  ARG*     1.3    76.9    -      -       +      +
    196A  LEU*     1.3    64.1    +      -       -      +
    198A  LYS*     3.2    19.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 196 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2A  ALA*     4.4    11.2    -      -       +      -
      3A  THR*     4.2    18.6    -      -       +      +
      9A  VAL*     3.8    32.9    -      -       +      +
     99A  VAL      3.9    11.4    -      -       -      +
    100A  GLY*     4.6     8.5    -      -       -      +
    101A  PHE*     4.2    20.9    -      -       +      -
    138A  GLU      6.0     0.2    -      -       -      +
    140A  LEU*     3.5    20.1    -      -       +      +
    192A  GLN      2.9    17.4    +      -       -      +
    193A  ALA      3.6     5.4    -      -       -      +
    195A  LYS*     1.3    77.4    -      -       -      +
    197A  TYR*     1.3    80.2    +      -       +      +
    198A  LYS*     3.4     7.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 197 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9A  VAL*     3.5    18.5    -      -       +      -
     10A  TRP*     3.2    49.6    +      -       +      -
     12A  ASP      6.1     0.5    -      -       -      -
     13A  GLY*     3.7    25.4    -      -       -      -
     15A  ILE*     5.4     1.1    -      -       +      -
     43A  CYS*     3.7    23.7    -      -       -      -
     44A  VAL*     4.1    16.6    -      -       +      -
     99A  VAL*     2.7    43.0    +      -       +      -
    193A  ALA*     2.9    22.6    +      -       +      +
    194A  ARG      3.6     0.2    -      -       -      -
    196A  LEU*     1.3    90.8    -      -       +      +
    198A  LYS*     1.3    72.3    +      -       -      +
    199A  CYS*     3.2     3.4    +      -       -      -
----------------------------------------------------------
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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