Contacts of the helix formed by residues 157 - 167 (chain F) in PDB entry 6V3O


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 157 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    160B  GLU*     6.2     0.2    -      -       -      -
    155F  GLY      3.9     1.2    +      -       -      -
    156F  LYS*     1.3    76.5    -      -       -      +
    158F  PRO*     1.3    71.1    -      -       -      +
    159F  GLU*     3.4    17.3    +      -       -      +
    160F  GLU*     3.0    45.0    +      -       -      +
    161F  VAL*     3.1    13.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 158 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    151F  VAL*     3.8    25.8    -      -       +      -
    156F  LYS      3.9     0.2    -      -       -      -
    157F  SER*     1.3    86.9    -      -       -      +
    159F  GLU*     1.3    65.1    +      -       -      +
    161F  VAL*     3.4     9.1    +      -       +      +
    162F  PHE*     2.9    30.8    +      -       -      +
    270F  ILE*     3.5    31.7    -      -       +      +
    271F  GLY      5.3     1.1    -      -       -      -
    272F  ILE*     3.9    20.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 159 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    157F  SER*     3.4    19.2    +      -       -      +
    158F  PRO*     1.3    84.3    -      -       -      +
    160F  GLU*     1.3    58.7    +      -       +      +
    162F  PHE*     3.4     4.8    +      -       -      +
    163F  GLU*     2.9    29.7    +      -       -      +
    272F  ILE*     4.3    17.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 160 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    157B  SER*     5.2     9.4    -      -       -      -
    160B  GLU*     6.2     0.3    -      -       -      -
    156F  LYS*     3.4    32.8    +      -       +      +
    157F  SER*     3.0    30.8    +      -       -      +
    159F  GLU*     1.3    73.4    -      -       +      +
    161F  VAL*     1.3    54.3    +      -       -      +
    163F  GLU*     3.2     6.2    +      -       -      +
    164F  ALA*     2.7    36.7    +      -       -      +
    703F  MET*     4.8     6.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 161 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    147F  LEU*     3.6    32.3    -      -       +      -
    150F  LEU*     4.3    11.4    -      -       +      -
    151F  VAL*     4.1    20.4    -      -       +      -
    156F  LYS*     4.3    14.6    -      -       +      -
    157F  SER      3.1    14.3    +      -       -      +
    158F  PRO*     3.6     7.6    -      -       +      +
    160F  GLU*     1.3    75.4    -      -       -      +
    162F  PHE*     1.3    63.3    +      -       -      +
    164F  ALA*     3.0     9.2    +      -       -      +
    165F  LEU*     3.0    27.9    +      -       +      +
    267F  LEU*     5.0     0.4    -      -       +      -
    270F  ILE*     4.5     9.9    -      -       +      -
    699F  LEU*     4.3    10.5    -      -       +      +
    703F  MET*     4.4     9.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 162 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    158F  PRO      2.9    18.5    +      -       -      +
    159F  GLU*     3.7     6.3    -      -       -      +
    161F  VAL*     1.3    76.6    -      -       -      +
    163F  GLU*     1.3    61.0    +      -       +      +
    165F  LEU*     3.6     3.4    +      -       +      +
    166F  LYS*     3.3    52.0    +      -       -      +
    267F  LEU*     3.7    39.0    -      -       +      +
    272F  ILE*     4.1    26.2    -      -       +      -
    274F  GLU*     3.8    33.9    -      -       +      -
    275F  ARG      4.0    17.0    -      -       -      -
    276F  LEU*     4.2    15.3    -      -       +      -
    277F  PRO*     4.1     6.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 163 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    159F  GLU      2.9    18.0    +      -       -      +
    160F  GLU*     3.8     5.6    -      -       -      +
    162F  PHE*     1.3    75.0    -      -       +      +
    164F  ALA*     1.3    60.2    +      -       -      +
    166F  LYS*     3.3    33.7    +      -       -      +
    167F  ASN*     2.4    54.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 164 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    160F  GLU      2.7    21.4    +      -       -      +
    161F  VAL      3.3     5.4    -      -       -      +
    163F  GLU*     1.3    74.3    -      -       -      +
    165F  LEU*     1.3    61.9    +      -       -      +
    167F  ASN*     3.2    14.9    +      -       -      +
    168F  GLN*     3.3    13.5    +      -       -      +
    666F  GLY*     5.8     0.9    -      -       -      -
    699F  LEU*     3.7    18.6    -      -       +      +
    703F  MET*     3.9    17.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 165 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143F  ILE*     5.2     3.4    -      -       +      -
    147F  LEU*     4.6     6.1    -      -       +      -
    161F  VAL*     3.0    20.8    +      -       +      +
    162F  PHE      3.9     4.9    -      -       -      +
    163F  GLU      3.3     0.2    -      -       -      -
    164F  ALA*     1.3    76.9    -      -       -      +
    166F  LYS*     1.3    62.2    +      -       -      +
    168F  GLN*     3.2    15.7    +      -       -      +
    263F  VAL*     4.4    18.4    -      -       +      -
    267F  LEU*     3.9    29.2    -      -       +      -
    276F  LEU*     4.2    14.0    -      -       +      +
    280F  VAL*     5.1     2.4    -      -       -      +
    282F  LEU*     3.4    39.8    -      -       +      +
    695F  THR*     4.3    15.9    -      -       +      -
    699F  LEU*     4.0    31.0    -      -       +      -
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Residues in contact with LYS 166 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    162F  PHE*     3.3    47.1    +      -       +      +
    163F  GLU*     3.3    33.1    +      -       -      +
    164F  ALA      3.3     0.8    -      -       -      -
    165F  LEU*     1.3    77.3    -      -       -      +
    167F  ASN*     1.3    63.4    +      -       -      +
    168F  GLN      3.4     2.5    +      -       -      +
    274F  GLU*     5.1     2.4    +      -       -      -
    276F  LEU*     4.4    13.0    -      -       +      -
    277F  PRO*     4.4    17.1    -      -       +      +
    280F  VAL*     4.1    27.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 167 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    163F  GLU*     2.4    55.5    +      -       -      +
    164F  ALA*     3.2     8.7    +      -       -      +
    165F  LEU      3.1     0.4    -      -       -      -
    166F  LYS*     1.3    80.4    -      -       -      +
    168F  GLN*     1.3    60.1    +      -       -      +
    169F  THR*     4.0     2.5    +      -       -      -
    634F  LYS*     5.6     3.1    +      -       -      -
    665F  ASN      5.0     1.4    -      -       -      +
    666F  GLY*     3.6    13.0    -      -       -      +
    667F  SER*     5.6     0.5    -      -       -      -
----------------------------------------------------------
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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