Contacts of the helix formed by residues 178 - 199 (chain A) in PDB entry 1FX8


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 LEU 178 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57A  TYR*     4.3     1.8    -      -       -      -
    175A  ARG*     3.1    24.0    +      -       +      +
    177A  PRO*     1.3    81.5    -      -       +      +
    179A  ALA*     1.3    65.6    +      -       -      +
    180A  PRO      3.4     0.2    -      -       -      -
    181A  LEU*     3.2    30.1    +      -       +      +
    182A  LEU*     2.9    40.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 179 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    166A  LEU*     4.2    19.9    -      -       -      +
    167A  THR*     4.6    15.5    -      -       +      -
    175A  ARG*     3.8    11.6    -      -       +      +
    176A  GLY      3.3    12.6    +      -       -      +
    178A  LEU*     1.3    77.3    -      -       -      +
    180A  PRO*     1.3    71.5    -      -       +      +
    182A  LEU*     3.2     6.7    +      -       -      +
    183A  ILE*     2.9    30.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with PRO 180 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53A  ALA*     3.6    14.6    -      -       -      +
     56A  ILE*     3.6    33.0    -      -       +      -
     57A  TYR*     3.5    32.1    -      -       +      -
     60A  ALA*     5.7     2.9    -      -       +      -
    176A  GLY      4.3     1.8    -      -       -      +
    177A  PRO*     3.5    16.8    -      -       +      +
    179A  ALA*     1.3    94.3    -      -       +      +
    181A  LEU*     1.3    61.7    +      -       -      +
    183A  ILE*     3.1    11.4    +      -       +      +
    184A  GLY      3.0    18.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 181 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50A  LEU*     3.8    27.6    -      -       +      -
     53A  ALA*     4.0     9.4    -      -       +      -
     54A  MET*     5.9     3.6    -      -       +      -
     57A  TYR*     3.5    17.6    +      -       +      +
    178A  LEU*     3.2    29.7    +      -       +      +
    180A  PRO*     1.3    79.1    -      -       -      +
    182A  LEU*     1.3    67.8    +      -       +      +
    184A  GLY*     3.0     4.0    +      -       -      -
    185A  LEU*     3.0    37.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 182 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    166A  LEU*     3.9    26.9    -      -       +      +
    175A  ARG*     3.5    31.9    -      -       +      -
    178A  LEU*     2.9    37.4    +      -       +      +
    179A  ALA*     3.6     6.3    -      -       -      +
    181A  LEU*     1.3    79.2    -      -       +      +
    183A  ILE*     1.3    57.4    +      -       -      +
    185A  LEU*     3.2    21.0    +      -       +      +
    186A  LEU*     2.9    28.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 183 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52A  VAL*     4.9     0.9    -      -       +      -
     56A  ILE*     4.1    29.6    -      -       +      -
    159A  LEU*     5.0     0.2    -      -       +      -
    163A  ILE*     4.1    37.5    -      -       +      -
    166A  LEU*     3.9    20.6    -      -       +      -
    167A  THR*     4.4    21.1    -      -       +      -
    179A  ALA*     2.9    24.6    +      -       +      +
    180A  PRO*     3.1     8.0    +      -       +      +
    182A  LEU*     1.3    76.3    -      -       -      +
    184A  GLY*     1.3    64.2    +      -       -      +
    186A  LEU*     3.2     7.0    +      -       +      +
    187A  ILE*     3.1    34.6    +      -       +      +
    663A  GOL      5.6     1.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 184 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49A  GLY*     3.1    40.3    -      -       -      -
     50A  LEU*     4.7     1.6    -      -       -      -
     52A  VAL*     5.1     0.4    -      -       -      +
     53A  ALA*     4.3     6.5    -      -       -      +
    180A  PRO      3.0    12.3    +      -       -      -
    181A  LEU      3.0     4.9    +      -       -      -
    183A  ILE*     1.3    77.4    -      -       -      +
    185A  LEU*     1.3    56.5    +      -       -      +
    187A  ILE*     3.2     5.4    +      -       -      -
    188A  ALA*     3.0    22.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 185 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42A  TRP*     5.3     6.3    -      -       +      -
     46A  VAL*     4.7    19.3    -      -       +      -
     50A  LEU*     4.8    12.6    -      -       +      -
    181A  LEU*     3.0    29.3    +      -       +      +
    182A  LEU*     3.2    24.7    +      -       +      +
    184A  GLY*     1.3    73.7    -      -       -      +
    186A  LEU*     1.3    64.2    -      -       -      +
    188A  ALA*     3.2     6.7    +      -       +      +
    189A  VAL*     3.0    30.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 186 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    158A  ILE*     4.6     6.7    -      -       +      -
    159A  LEU*     3.9    28.7    -      -       +      +
    162A  LEU*     3.4    45.8    -      -       +      -
    163A  ILE*     4.4     5.2    -      -       +      +
    166A  LEU*     4.6     8.5    -      -       +      -
    182A  LEU      2.9    13.8    +      -       -      +
    183A  ILE*     3.3    10.8    -      -       -      +
    185A  LEU*     1.3    77.4    -      -       -      +
    187A  ILE*     1.3    62.3    +      -       -      +
    189A  VAL*     3.0    30.7    -      -       +      +
    190A  ILE*     3.0    25.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 187 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48A  TRP      4.6     0.9    -      -       -      -
     49A  GLY*     3.9    16.2    -      -       -      +
     52A  VAL*     3.5    36.8    -      -       +      -
    159A  LEU*     3.9    18.8    -      -       +      -
    183A  ILE*     3.1    17.9    +      -       +      +
    184A  GLY*     3.2     6.7    +      -       -      +
    186A  LEU*     1.3    76.2    -      -       -      +
    188A  ALA*     1.3    58.7    +      -       -      +
    190A  ILE*     3.3     8.8    +      -       -      +
    191A  GLY*     2.9    27.2    +      -       -      -
    200A  PHE*     4.0    12.9    -      -       +      -
    202A  MET*     4.3     9.6    -      -       +      -
    662A  GOL      4.1    18.2    -      -       -      +
    663A  GOL      3.7    20.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 188 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42A  TRP*     4.0    19.2    -      -       +      -
     45A  SER*     3.3    29.8    -      -       -      +
     46A  VAL*     3.8    18.6    -      -       +      -
    184A  GLY      3.0    13.0    +      -       -      +
    185A  LEU*     3.3    14.6    -      -       +      +
    187A  ILE*     1.3    78.6    -      -       -      +
    189A  VAL*     1.3    57.6    +      -       -      +
    192A  ALA*     3.0    26.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 189 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42A  TRP*     4.8    12.3    -      -       +      -
    185A  LEU*     3.0    16.6    +      -       +      +
    186A  LEU*     3.0    28.3    -      -       +      +
    188A  ALA*     1.3    72.9    -      -       +      +
    190A  ILE*     1.3    58.5    +      -       +      +
    192A  ALA*     4.0     6.1    -      -       -      +
    193A  SER*     2.7    36.7    +      -       -      -
----------------------------------------------------------
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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
----------------------------------------------------------
    155A  ILE*     3.8    39.7    -      -       +      +
    158A  ILE*     4.2    14.1    -      -       +      -
    159A  LEU*     4.2    11.4    -      -       +      -
    186A  LEU*     3.0    43.3    +      -       +      +
    187A  ILE*     3.7     5.2    -      -       -      +
    189A  VAL*     1.3    77.4    -      -       +      +
    191A  GLY*     1.3    58.6    +      -       -      +
    193A  SER*     3.5     5.1    +      -       -      -
    194A  MET*     2.8    28.8    +      -       +      +
    195A  GLY      3.5     2.8    +      -       -      -
    200A  PHE*     4.2     4.9    -      -       +      -
    202A  MET*     3.8    35.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 191 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  GLN*     2.9    21.7    +      -       -      -
     45A  SER*     3.0    14.6    -      -       -      -
    187A  ILE      2.9    12.4    +      -       -      -
    188A  ALA      3.8     0.2    -      -       -      -
    190A  ILE*     1.3    78.7    -      -       -      +
    192A  ALA*     1.3    56.4    +      -       -      +
    195A  GLY      2.9    14.0    +      -       -      -
    200A  PHE*     3.5    31.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 192 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  GLN*     4.1    15.3    -      -       +      +
     42A  TRP*     4.1    27.8    -      -       +      +
     45A  SER*     3.2     6.9    +      -       -      +
    188A  ALA      3.0    16.8    +      -       -      +
    189A  VAL*     4.0     5.4    -      -       -      +
    190A  ILE      3.3     0.2    -      -       -      -
    191A  GLY*     1.3    78.6    -      -       -      +
    193A  SER*     1.3    59.8    +      -       -      +
    196A  PRO*     4.2     5.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 193 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    189A  VAL      2.7    22.7    +      -       -      -
    190A  ILE*     3.5     5.9    +      -       -      -
    192A  ALA*     1.3    80.5    -      -       -      +
    194A  MET*     1.3    84.5    +      -       -      +
    196A  PRO*     4.6     3.6    -      -       -      +
    197A  LEU*     5.8     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with MET 194 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    151A  VAL*     4.5     9.4    -      -       +      +
    154A  VAL*     6.3     2.5    -      -       -      -
    155A  ILE*     3.6    33.2    -      -       +      -
    190A  ILE*     2.8    16.0    +      -       +      +
    193A  SER*     1.3    99.0    -      -       -      +
    195A  GLY*     1.3    67.6    +      -       -      +
    196A  PRO*     3.3     4.0    -      -       -      -
    197A  LEU*     3.0    43.9    +      -       +      +
    198A  THR*     3.9     3.5    +      -       -      -
    200A  PHE*     5.0     2.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 195 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  GLN*     3.8     6.5    -      -       -      -
    190A  ILE      3.5     2.8    +      -       -      -
    191A  GLY      2.9    20.5    +      -       -      -
    194A  MET*     1.3    76.7    -      -       -      +
    196A  PRO*     1.3    65.9    -      -       -      +
    199A  GLY*     2.9    24.7    +      -       -      -
    200A  PHE*     3.6    25.6    -      -       -      -
    661A  GOL      3.7     5.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with PRO 196 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  GLN*     3.9    24.0    -      -       +      +
    140A  ASN*     3.3    24.8    +      -       -      +
    191A  GLY      3.9     7.0    -      -       -      +
    192A  ALA      4.2    10.1    -      -       -      +
    193A  SER      4.6     2.2    -      -       -      +
    194A  MET*     3.4     5.6    -      -       -      -
    195A  GLY*     1.3    88.1    -      -       -      +
    197A  LEU*     1.3    63.5    +      -       +      +
    661A  GOL      3.4    20.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 197 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    140A  ASN*     3.0    33.1    +      -       +      +
    143A  ILE*     3.3    27.2    -      -       +      +
    151A  VAL*     3.9    30.7    -      -       +      -
    193A  SER      5.8     0.4    -      -       -      +
    194A  MET*     3.0    33.6    +      -       -      +
    195A  GLY      2.9     2.8    +      -       -      -
    196A  PRO*     1.3    85.6    -      -       +      +
    198A  THR*     1.3    65.6    +      -       +      +
    199A  GLY      3.9     0.2    -      -       -      -
    661A  GOL      4.3     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 198 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137A  THR*     3.2    19.9    +      -       -      -
    138A  TYR      4.0    13.8    -      -       -      +
    139A  PRO*     4.6     0.4    -      -       +      -
    143A  ILE*     3.9     2.0    -      -       +      -
    148A  ALA*     3.7    34.8    -      -       +      +
    151A  VAL*     3.6    20.3    -      -       +      +
    152A  GLU*     2.7    31.4    +      -       -      +
    155A  ILE*     4.7     0.3    -      -       -      +
    194A  MET      3.9     2.3    +      -       -      -
    195A  GLY      3.5     0.2    +      -       -      -
    197A  LEU*     1.3    84.6    -      -       -      +
    199A  GLY*     1.3    63.4    +      -       -      +
    200A  PHE*     3.9     4.7    +      -       -      -
    232A  TYR*     3.5    20.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 199 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137A  THR*     3.1    10.2    -      -       -      +
    195A  GLY      2.9    16.3    +      -       -      -
    198A  THR*     1.3    77.9    -      -       -      +
    200A  PHE*     1.3    73.8    +      -       -      +
    201A  ALA      3.0     1.8    +      -       -      -
    661A  GOL      3.5    17.1    +      -       -      -
    662A  GOL      2.5    28.5    +      -       -      -
----------------------------------------------------------
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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