Contacts of the helix formed by residues 221 - 241 (chain A) in PDB entry 6F0X


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 TRP 221 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    219A  SER      4.0     2.6    -      -       -      +
    220A  LYS*     1.3   115.5    -      -       +      +
    222A  PHE*     1.3    63.2    +      -       -      +
    223A  SER*     3.2    25.3    +      -       -      -
    224A  GLU*     3.1    67.0    +      -       +      +
    225A  SER*     3.2    10.6    +      -       -      -
    272A  ASP*     5.6     2.2    -      -       -      -
      7Z  ARG*     5.4     2.7    -      -       -      +
      8Z  GLU      4.1    13.5    -      -       -      +
      9Z  GLN*     3.7    29.4    -      -       -      +
    115Z  ALA*     5.5     4.9    -      -       +      -
    116Z  PRO*     3.8    33.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 222 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221A  TRP*     1.3    73.1    -      -       -      +
    223A  SER*     1.3    63.5    +      -       -      +
    224A  GLU      3.1     1.8    -      -       -      -
    225A  SER*     2.3    39.9    +      -       -      -
    226A  GLY*     2.9    12.0    +      -       -      -
    272A  ASP*     3.7    29.2    +      -       +      +
    275A  ARG*     3.3    45.8    -      -       -      -
    276A  VAL*     5.2     4.3    -      -       +      -
      9Z  GLN*     5.9     0.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 223 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221A  TRP*     3.2    18.9    +      -       -      -
    222A  PHE*     1.3    80.1    -      -       -      +
    224A  GLU*     1.3    59.1    +      -       -      +
    226A  GLY*     3.1     3.9    +      -       -      +
    227A  LYS*     2.9    28.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 224 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    219A  SER*     2.9    30.4    +      -       -      +
    220A  LYS*     4.2    13.0    +      -       +      -
    221A  TRP*     3.1    57.8    +      -       +      +
    222A  PHE      3.1     0.2    -      -       -      -
    223A  SER*     1.3    74.8    -      -       -      +
    225A  SER*     1.3    58.4    +      -       -      +
    227A  LYS*     3.0    38.2    +      -       -      +
    228A  LEU*     2.9    28.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 225 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    219A  SER*     4.0     3.2    +      -       -      -
    221A  TRP      3.2     8.7    +      -       -      -
    222A  PHE*     2.3    47.3    +      -       -      -
    224A  GLU*     1.3    75.9    -      -       -      +
    226A  GLY*     1.3    56.4    +      -       -      +
    228A  LEU*     3.1    16.4    -      -       -      +
    229A  VAL*     2.9    34.8    +      -       -      +
    272A  ASP      5.3     2.9    -      -       -      -
    276A  VAL*     4.1    23.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 226 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    222A  PHE*     2.9    14.5    +      -       -      -
    223A  SER*     3.1     6.8    +      -       -      -
    225A  SER*     1.3    75.1    +      -       -      +
    227A  LYS*     1.3    57.1    +      -       -      +
    229A  VAL*     4.0     2.9    -      -       -      +
    230A  THR*     2.7    42.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 227 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    223A  SER      2.9    10.1    +      -       -      +
    224A  GLU*     3.0    56.8    +      -       -      +
    226A  GLY*     1.3    72.9    -      -       -      +
    228A  LEU*     1.3    61.9    +      -       -      +
    230A  THR*     2.9    17.9    +      -       -      -
    231A  LYS*     2.9    42.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 228 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217A  LEU*     3.0    63.7    -      -       +      +
    218A  PHE*     3.9     8.7    -      -       +      -
    219A  SER*     4.3     4.3    -      -       -      +
    224A  GLU      2.9    12.8    +      -       -      +
    225A  SER*     3.1    22.4    -      -       -      +
    227A  LYS*     1.3    80.8    -      -       -      +
    229A  VAL*     1.3    90.4    +      -       +      +
    231A  LYS*     4.4     0.3    -      -       -      +
    232A  MET*     3.0    39.7    +      -       +      +
    233A  PHE*     4.4     1.3    -      -       +      -
    276A  VAL*     4.4     7.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 229 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225A  SER      2.9    18.9    +      -       -      +
    226A  GLY*     4.1     2.2    -      -       -      +
    228A  LEU*     1.3    91.4    -      -       +      +
    230A  THR*     1.3    69.6    +      -       +      +
    233A  PHE*     2.9    52.0    +      -       +      +
    234A  GLN      3.7     0.2    +      -       -      -
    276A  VAL*     3.9    21.1    -      -       +      -
    279A  ALA*     5.8     4.7    -      -       +      -
    283A  GLN*     3.8    18.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 230 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    226A  GLY*     2.7    27.6    +      -       -      +
    227A  LYS*     2.9    12.6    +      -       -      -
    229A  VAL*     1.3    77.2    -      -       +      +
    231A  LYS*     1.3    65.7    +      -       -      +
    234A  GLN*     2.6    42.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 231 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227A  LYS*     2.9    38.2    +      -       -      +
    230A  THR*     1.3    81.6    +      -       -      +
    232A  MET*     1.3    64.9    +      -       -      +
    234A  GLN*     3.5     3.6    -      -       -      +
    235A  LYS*     2.9    44.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 232 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122A  ALA*     4.9    18.4    -      -       +      -
    210A  ILE*     5.8     2.5    -      -       +      -
    212A  ILE*     4.9    15.7    -      -       +      -
    217A  LEU*     3.6    29.2    -      -       +      -
    228A  LEU*     3.0    25.1    +      -       +      +
    231A  LYS*     1.3    80.3    -      -       -      +
    233A  PHE*     1.3    97.6    +      -       +      +
    235A  LYS*     3.2     7.7    +      -       -      +
    236A  ILE*     2.9    57.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 233 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    212A  ILE*     5.5     4.5    -      -       +      -
    228A  LEU*     4.4     0.4    -      -       +      -
    229A  VAL*     2.9    55.6    +      -       +      +
    232A  MET*     1.3   103.3    -      -       +      +
    234A  GLN*     1.3    60.6    +      -       -      +
    236A  ILE*     3.5    18.8    -      -       +      +
    237A  GLN*     2.8    33.4    +      -       -      +
    280A  VAL*     3.6    33.7    -      -       +      -
    283A  GLN*     3.1    51.4    -      -       +      +
    284A  ILE*     5.3     1.3    -      -       +      -
    287A  ILE*     5.5     4.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 234 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    229A  VAL      3.7     0.2    +      -       -      -
    230A  THR*     2.6    28.2    +      -       -      +
    231A  LYS*     3.5     4.3    -      -       -      +
    233A  PHE*     1.3    75.8    -      -       -      +
    235A  LYS*     1.3    64.7    +      -       +      +
    237A  GLN*     4.7     2.5    -      -       -      -
    238A  ASP*     2.2    64.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 235 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124A  HIS*     5.9     6.7    -      -       +      -
    210A  ILE*     6.5     0.9    -      -       +      -
    231A  LYS*     2.9    34.1    +      -       -      +
    232A  MET*     3.4     9.4    -      -       -      +
    234A  GLN*     1.3    75.4    -      -       +      +
    236A  ILE*     1.3    65.1    +      -       +      +
    238A  ASP*     3.8     2.3    -      -       -      +
    239A  LEU*     2.9    40.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 236 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210A  ILE*     4.9    19.3    -      -       +      -
    212A  ILE*     4.1    18.2    -      -       +      -
    232A  MET*     2.9    49.8    +      -       +      +
    233A  PHE*     3.5    22.9    -      -       +      +
    235A  LYS*     1.3    78.0    -      -       +      +
    237A  GLN*     1.3    65.6    +      -       -      +
    239A  LEU*     3.0     8.0    +      -       -      +
    240A  ILE*     2.9    40.5    +      -       +      +
    247A  VAL*     5.7     0.9    -      -       +      -
    249A  VAL*     4.9    11.2    -      -       +      -
    287A  ILE*     4.1    20.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 237 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    233A  PHE      2.8    20.8    +      -       -      +
    234A  GLN*     3.9     3.6    -      -       -      +
    236A  ILE*     1.3    74.0    -      -       -      +
    238A  ASP*     1.3    66.8    +      -       -      +
    240A  ILE*     2.7    32.5    +      -       -      +
    241A  ASP*     3.1    24.0    +      -       -      +
    286A  GLN*     4.7     9.5    -      -       -      +
    287A  ILE*     4.3    10.3    -      -       +      +
    290A  HIS*     2.8    40.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 238 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    234A  GLN*     2.2    57.1    +      -       -      +
    235A  LYS*     4.3     2.7    -      -       -      +
    237A  GLN*     1.3    80.6    -      -       -      +
    239A  LEU*     1.3    63.1    +      -       +      +
    241A  ASP*     3.5    29.9    -      -       -      +
    242A  ASP*     4.1     2.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 239 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124A  HIS*     4.3    19.5    -      -       +      +
    208A  GLN*     3.7    37.0    -      -       +      +
    210A  ILE*     4.5    10.5    -      -       +      -
    235A  LYS*     2.9    35.4    +      -       +      +
    236A  ILE*     3.3     5.6    -      -       -      +
    238A  ASP*     1.3    76.8    -      -       -      +
    240A  ILE*     1.3    64.5    +      -       +      +
    241A  ASP      3.1     0.4    -      -       -      -
    242A  ASP*     2.9    28.0    +      -       +      +
    245A  ALA*     4.8     2.9    -      -       -      +
    247A  VAL*     4.5     6.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 240 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    236A  ILE*     3.0    32.1    -      -       +      +
    237A  GLN*     2.7    26.8    +      -       -      +
    239A  LEU*     1.3    72.8    -      -       +      +
    241A  ASP*     1.3    60.6    +      -       -      -
    242A  ASP      3.1     1.2    +      -       -      +
    243A  LYS*     4.4     5.4    +      -       -      -
    247A  VAL*     3.6    25.6    -      -       +      -
    287A  ILE*     3.6    25.4    -      -       +      -
    290A  HIS*     3.3    35.4    -      -       +      +
    292A  ASN*     3.3    31.4    +      -       -      +
    293A  VAL*     3.6    10.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 241 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    237A  GLN*     3.1    24.4    +      -       -      +
    238A  ASP*     3.5    31.9    -      -       -      +
    239A  LEU      3.1     0.8    -      -       -      -
    240A  ILE*     1.3    76.8    -      -       -      +
    242A  ASP*     1.3    56.0    +      -       -      +
    243A  LYS*     2.8    30.4    +      -       -      +
    290A  HIS*     4.2     5.2    +      -       -      -
----------------------------------------------------------
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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