Contacts of the helix formed by residues 151 - 162 (chain F) in PDB entry 3FFC


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 ARG 151 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    147F  TRP      3.0     5.4    +      -       -      -
    148F  GLU*     3.2    14.2    +      -       -      +
    149F  ALA      4.0     7.4    -      -       -      +
    150F  ALA*     1.3    80.8    -      -       -      +
    152F  VAL*     1.3    63.8    +      -       -      +
    153F  ALA*     3.4     2.7    -      -       -      -
    154F  GLU*     2.9    56.4    +      -       +      +
    155F  GLN*     3.3    13.8    -      -       -      +
    108J  PHE*     3.7    35.6    -      -       +      -
    116J  THR*     4.8     5.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 152 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    133F  TRP*     4.1     7.9    -      -       +      -
    147F  TRP*     3.1    58.8    +      -       +      +
    148F  GLU*     5.2     0.2    -      -       -      +
    150F  ALA*     4.0    11.9    -      -       +      +
    151F  ARG*     1.3    73.3    -      -       -      +
    153F  ALA*     1.3    67.1    +      -       -      +
    155F  GLN*     2.8    27.7    +      -       -      +
    156F  ASP*     2.9    30.0    +      -       -      +
      3H  ARG*     6.2     0.7    -      -       -      +
      7H  TYR*     4.0    20.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 153 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126F  LEU*     4.0    21.7    -      -       +      +
    130F  LEU      3.7     4.7    -      -       -      +
    131F  ARG*     4.0    24.2    -      -       -      +
    133F  TRP*     3.6    24.1    -      -       -      +
    147F  TRP      4.7     0.4    +      -       -      -
    151F  ARG*     3.4     1.1    -      -       -      -
    152F  VAL*     1.3    77.4    -      -       -      +
    154F  GLU*     1.3    52.3    +      -       +      +
    156F  ASP*     3.2     2.9    +      -       -      +
    157F  ARG*     2.7    40.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 154 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    151F  ARG*     2.9    58.5    +      -       +      +
    152F  VAL      3.1     0.8    -      -       -      -
    153F  ALA*     1.3    77.3    -      -       +      +
    155F  GLN*     1.3    58.4    -      -       -      +
    157F  ARG*     3.6    33.6    +      -       -      +
    158F  ALA*     3.0    29.5    +      -       -      +
    115J  ALA*     5.7     3.6    -      -       -      +
    116J  THR*     4.1    14.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 155 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    150F  ALA      2.7    29.9    +      -       -      -
    151F  ARG*     3.3     9.4    +      -       -      +
    152F  VAL*     2.8    20.6    +      -       -      +
    154F  GLU*     1.3    76.7    -      -       -      +
    156F  ASP*     1.3    64.9    +      -       -      +
    158F  ALA*     3.6     0.6    -      -       -      +
    159F  TYR*     3.4    17.0    +      -       -      +
      3H  ARG*     5.7     0.2    -      -       -      +
      6H  ALA*     4.6     1.7    +      -       -      +
      7H  TYR*     3.4    27.7    +      -       -      -
    108J  PHE*     3.8    10.9    -      -       -      +
    109J  THR*     3.3    28.2    -      -       +      +
    112J  SER*     3.6    14.9    -      -       -      -
    116J  THR*     3.6    28.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 156 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114F  ASN*     2.8    28.2    +      -       -      +
    126F  LEU*     4.0    15.5    -      -       +      -
    133F  TRP*     3.3    16.6    -      -       -      -
    147F  TRP*     5.6     0.2    -      -       -      -
    152F  VAL*     2.9    23.4    +      -       -      +
    153F  ALA*     3.7     4.3    -      -       -      +
    155F  GLN*     1.3    78.6    -      -       -      +
    157F  ARG*     1.3    60.4    +      -       -      +
    158F  ALA      3.2     1.3    -      -       -      -
    159F  TYR*     3.1     5.8    +      -       -      +
    160F  LEU*     2.9    39.2    +      -       +      +
      3H  ARG*     2.9    27.5    +      -       -      +
      4H  GLY      5.1     3.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 157 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126F  LEU*     4.9     0.8    -      -       -      +
    130F  LEU*     3.1    34.6    +      -       +      +
    131F  ARG*     3.4    56.6    +      -       -      +
    153F  ALA*     2.7    18.8    +      -       -      +
    154F  GLU*     3.6    43.9    +      -       -      +
    156F  ASP*     1.3    70.7    -      -       -      +
    158F  ALA*     1.3    54.3    +      -       -      +
    160F  LEU*     3.2     4.8    +      -       -      +
    161F  GLU*     2.8    68.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 158 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    154F  GLU      3.0    17.7    +      -       -      +
    155F  GLN*     3.6     7.4    -      -       -      +
    157F  ARG*     1.3    77.3    -      -       -      +
    159F  TYR*     1.3    61.1    +      -       -      +
    161F  GLU*     5.2     1.6    -      -       -      -
    162F  GLY*     3.0    24.0    +      -       -      +
    163F  THR      3.8     1.6    +      -       -      -
     59I  TYR*     3.7     8.4    +      -       -      +
    112J  SER*     3.7     9.0    -      -       -      +
    114J  GLY*     3.6    33.9    -      -       -      +
    115J  ALA      5.0     0.7    -      -       -      +
    116J  THR*     5.1     1.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 159 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5F  MET*     4.0     8.3    -      -       -      +
      7F  TYR*     3.5    17.8    -      -       -      -
     99F  TYR*     3.6    24.0    -      +       -      -
    100F  GLY*     4.8     0.2    -      -       -      -
    155F  GLN      3.4     9.1    +      -       -      +
    156F  ASP      3.1     7.4    +      -       -      +
    158F  ALA*     1.3    79.3    -      -       -      +
    160F  LEU*     1.3    77.3    +      -       +      +
    163F  THR*     3.3    26.1    +      -       +      +
    164F  CYS*     2.8    50.8    +      -       +      -
      1H  PHE      2.6    29.6    +      -       -      -
      2H  LEU      3.3    13.9    -      -       -      -
      3H  ARG*     3.6    32.1    -      -       +      -
    111J  THR      5.0     3.8    -      -       -      -
    112J  SER*     3.5    15.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 160 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99F  TYR*     5.1     1.8    -      -       +      -
    100F  GLY*     3.4    35.0    -      -       -      +
    101F  CYS*     3.9     0.8    -      -       +      +
    109F  LEU*     3.7     8.0    -      -       +      +
    112F  GLY*     4.5     8.3    -      -       -      -
    113F  HIS      3.5    23.1    -      -       -      +
    114F  ASN*     4.6     3.1    -      -       +      -
    126F  LEU*     3.7    25.8    -      -       +      -
    130F  LEU*     3.9    20.9    -      -       +      -
    156F  ASP*     2.9    22.7    +      -       +      +
    157F  ARG*     3.9     3.1    -      -       -      +
    159F  TYR*     1.3    97.4    -      -       +      +
    161F  GLU*     1.3    57.8    +      -       -      +
    164F  CYS*     3.6     7.8    -      -       -      +
    165F  VAL*     3.3    21.0    -      -       -      +
      3H  ARG*     5.6     1.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 161 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109F  LEU*     3.8    22.9    -      -       +      +
    130F  LEU*     4.2    10.7    -      -       +      +
    131F  ARG*     5.2     5.9    +      -       -      -
    157F  ARG*     2.8    49.3    +      -       +      +
    158F  ALA*     4.7     1.3    -      -       -      +
    160F  LEU*     1.3    72.4    -      -       -      +
    162F  GLY*     1.3    61.2    +      -       -      +
    165F  VAL*     3.7    18.2    -      -       -      +
    166F  GLU*     4.5     3.3    -      -       -      +
     59I  TYR*     4.3    12.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 162 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    158F  ALA      3.0    14.1    +      -       -      -
    161F  GLU*     1.3    79.8    -      -       -      +
    163F  THR*     1.3    59.4    +      -       -      +
    164F  CYS      3.4     0.8    +      -       -      -
    165F  VAL      3.5     1.0    +      -       -      -
    166F  GLU*     2.9    37.3    +      -       -      +
     31I  SER*     4.6     0.2    -      -       -      -
     59I  TYR*     3.5    31.6    -      -       -      -
----------------------------------------------------------
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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