Contacts of the helix formed by residues 124 - 135 (chain F) in PDB entry 6DV9


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 124 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123F  LEU*     1.3    76.4    -      -       -      +
    125F  ALA*     1.3    61.4    +      -       -      +
    126F  GLU*     3.9    11.1    +      -       -      -
    127F  HIS*     2.3    43.6    +      -       -      +
    128F  ARG*     2.8    27.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 125 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123F  LEU      3.7     1.2    +      -       -      -
    124F  SER*     1.3    73.9    -      -       -      +
    126F  GLU*     1.3    71.8    +      -       -      +
    128F  ARG*     3.9    24.8    +      -       -      +
    129F  ALA*     3.2    25.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 126 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124F  SER*     3.0    11.7    -      -       -      +
    125F  ALA*     1.3    90.6    +      -       -      +
    127F  HIS*     1.3    69.2    +      -       +      +
    129F  ALA*     3.4     3.5    +      -       -      +
    130F  VAL*     3.1    29.2    +      -       -      +
    148F  LEU*     5.2     0.4    -      -       -      +
    158F  ARG*     3.4    39.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 127 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123F  LEU*     4.2    13.0    -      -       +      -
    124F  SER*     2.3    33.6    +      -       -      +
    126F  GLU*     1.3    78.8    -      -       +      +
    128F  ARG*     1.3    66.3    -      -       -      +
    130F  VAL*     3.1    14.9    +      -       -      +
    131F  ILE*     3.1    20.9    +      -       -      +
    158F  ARG*     3.5    40.3    +      -       +      +
    161F  TYR*     3.2    42.5    -      +       -      +
    162F  ALA*     3.6    13.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 128 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120F  LEU*     3.4    41.7    +      -       +      +
    121F  ALA*     4.0    11.4    +      -       -      +
    123F  LEU*     2.9    34.1    +      -       +      +
    124F  SER      2.8    14.8    +      -       -      +
    125F  ALA*     3.9    23.5    +      -       -      +
    127F  HIS*     1.3    73.1    -      -       -      +
    129F  ALA*     1.3    56.3    +      -       -      +
    130F  VAL      3.1     2.8    +      -       -      -
    131F  ILE*     3.4     8.7    -      -       -      +
    132F  GLN*     3.3    37.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 129 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125F  ALA      3.2    19.6    +      -       -      +
    126F  GLU*     3.4     3.3    +      -       -      +
    127F  HIS      3.2     0.6    -      -       -      -
    128F  ARG*     1.3    77.5    -      -       -      +
    130F  VAL*     1.3    61.0    +      -       +      +
    132F  GLN*     3.9    12.8    -      -       -      +
    133F  ARG*     3.0    44.4    +      -       -      +
    148F  LEU*     4.2     7.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 130 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126F  GLU      3.1    18.6    -      -       -      +
    127F  HIS*     3.1     7.7    +      -       -      +
    129F  ALA*     1.3    76.7    -      -       -      +
    131F  ILE*     1.3    65.3    +      -       -      +
    132F  GLN      3.3     1.1    -      -       -      -
    133F  ARG*     3.3     6.4    +      -       -      +
    134F  SER*     3.2    22.2    +      -       -      -
    144F  ILE*     4.0     5.5    -      -       +      +
    148F  LEU*     3.6    26.5    -      -       +      -
    150F  ILE*     5.2     1.3    -      -       +      -
    155F  VAL*     4.0    18.2    -      -       +      -
    158F  ARG*     4.0    27.8    -      -       +      -
    159F  LEU*     3.5    27.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 131 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    820C  LEU*     4.6    17.2    -      -       +      +
    120F  LEU*     3.6    42.6    -      -       +      -
    123F  LEU*     4.3     7.2    -      -       +      -
    127F  HIS      3.1    16.7    +      -       -      +
    128F  ARG*     3.4    13.2    -      -       -      +
    130F  VAL*     1.3    76.5    -      -       -      +
    132F  GLN*     1.3    72.5    +      -       -      +
    133F  ARG      3.2     0.2    -      -       -      -
    135F  TYR*     3.0    43.6    +      -       +      +
    136F  TYR*     3.7     1.8    +      -       +      -
    159F  LEU*     3.7    22.0    -      -       +      -
    162F  ALA*     3.7    29.2    -      -       +      -
    163F  VAL*     4.8     2.9    -      -       +      +
    166F  LEU*     4.9     2.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 132 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120F  LEU*     5.4     3.1    -      -       +      +
    128F  ARG*     3.3    29.7    +      -       -      +
    129F  ALA*     3.9    12.5    -      -       -      +
    131F  ILE*     1.3    84.6    -      -       +      +
    133F  ARG*     1.3    74.8    +      -       -      +
    136F  TYR*     3.2    41.7    -      -       +      +
    137F  ARG*     3.2    40.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 133 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129F  ALA*     3.0    41.0    +      -       -      +
    130F  VAL      3.3     7.9    +      -       -      +
    131F  ILE      3.2     0.8    -      -       -      -
    132F  GLN*     1.3    96.2    -      -       -      +
    134F  SER*     1.3    57.3    +      -       -      +
    137F  ARG*     3.8    30.6    -      -       -      +
    139F  TRP*     3.3    43.7    +      -       +      +
    144F  ILE*     3.5    27.9    -      -       +      +
    147F  ASP*     3.0    28.9    +      -       -      -
    148F  LEU*     3.9    14.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 134 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    819C  ARG*     5.6     1.6    +      -       -      -
     67D  ARG*     5.4     3.6    +      -       -      -
    130F  VAL      3.2    11.5    +      -       -      -
    131F  ILE      3.4     0.4    +      -       -      -
    133F  ARG*     1.3    79.7    -      -       -      +
    135F  TYR*     1.3    74.2    +      -       -      +
    138F  GLY*     3.3    20.6    -      -       -      -
    139F  TRP      4.1     8.5    +      -       -      +
    140F  SER      6.0     0.3    -      -       -      -
    144F  ILE*     3.6    18.2    -      -       -      -
    159F  LEU*     3.9    25.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 135 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    816C  PRO*     3.4    31.4    -      -       -      +
    819C  ARG*     3.8    51.6    +      -       +      +
    820C  LEU*     3.8    35.0    -      -       +      -
    823C  ALA*     3.4    22.3    -      -       +      +
    131F  ILE*     3.0    20.0    +      -       +      +
    134F  SER*     1.3    91.2    -      -       -      +
    136F  TYR*     1.3    65.7    +      -       +      +
    137F  ARG      3.5     0.4    -      -       -      -
    138F  GLY*     4.1     4.3    +      -       -      -
    159F  LEU*     4.1    22.0    -      -       +      +
    163F  VAL*     4.2    11.2    -      -       +      +
----------------------------------------------------------
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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