Contacts of the helix formed by residues 186 - 205 (chain B) in PDB entry 2OX4


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 PRO 186 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    180B  PHE      5.7     3.1    -      -       -      +
    184B  PRO      4.3     2.7    -      -       -      +
    185B  LEU*     1.3    94.3    -      -       +      +
    187B  SER*     1.3    64.9    +      -       -      +
    188B  GLU*     4.2     9.4    -      -       +      +
    189B  THR*     3.1    28.9    +      -       -      +
    190B  ILE*     3.3    10.4    +      -       -      +
    125H  ARG*     5.6     7.6    -      -       -      +
    209H  ASP*     4.5    12.6    -      -       -      +
    236H  PHE*     5.2     0.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 187 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    185B  LEU      3.8     1.4    +      -       -      -
    186B  PRO*     1.3    72.0    -      -       -      +
    188B  GLU*     1.3    57.8    +      -       -      +
    190B  ILE*     3.3    10.7    +      -       -      +
    191B  LYS*     2.9    28.6    +      -       -      +
    225B  GLN*     5.7     0.7    -      -       -      +
    206H  PRO*     3.4    34.2    +      -       -      +
    207H  ASP*     3.9    12.4    +      -       -      +
    209H  ASP*     4.9     6.7    +      -       -      -
    234H  ASN*     4.6    13.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 188 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172B  ARG*     2.9    42.5    +      -       -      +
    186B  PRO*     3.1     6.5    -      -       +      +
    187B  SER*     1.3    79.5    +      -       -      +
    189B  THR*     1.3    57.4    +      -       -      +
    191B  LYS*     3.3    26.9    +      -       -      +
    192B  ILE*     2.9    38.3    +      -       +      +
    207H  ASP*     3.9    24.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 189 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168B  LEU*     3.9    14.4    -      -       +      +
    179B  VAL*     6.1     0.4    -      -       +      -
    180B  PHE      5.6     1.1    +      -       -      +
    181B  LEU*     3.7    30.7    -      -       +      -
    185B  LEU*     4.2    15.5    -      -       +      -
    186B  PRO*     3.1    30.1    +      -       -      +
    188B  GLU*     1.3    74.4    -      -       -      +
    190B  ILE*     1.3    65.6    +      -       -      +
    192B  ILE*     3.4    13.7    +      -       +      +
    193B  GLY      3.1    17.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 190 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168B  LEU*     5.3     0.2    -      -       -      -
    185B  LEU*     3.7    26.5    -      -       +      -
    186B  PRO      3.3    10.7    +      -       -      +
    187B  SER*     3.5     9.6    -      -       -      +
    189B  THR*     1.3    75.9    -      -       -      +
    191B  LYS*     1.3    58.9    +      -       -      +
    193B  GLY*     3.2     3.1    +      -       -      -
    194B  VAL*     2.9    31.0    +      -       +      +
    225B  GLN*     3.7    37.2    -      -       +      +
    226B  PHE*     3.9    23.5    -      -       +      -
    229B  ALA*     3.6    28.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 191 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172B  ARG*     3.8    13.3    -      -       -      +
    187B  SER*     2.9    16.3    +      -       -      +
    188B  GLU*     3.4    38.0    +      -       -      +
    189B  THR      3.3     0.2    -      -       -      -
    190B  ILE*     1.3    77.5    -      -       -      +
    192B  ILE*     1.3    52.6    +      -       -      +
    194B  VAL*     3.8     5.6    -      -       +      +
    195B  GLU*     2.8    45.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 192 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167B  VAL      4.2     2.7    -      -       -      +
    168B  LEU*     5.8     1.6    -      -       +      +
    170B  HIS      4.2     3.8    -      -       -      +
    171B  ASP*     4.9     6.7    -      -       +      -
    172B  ARG*     3.4    46.7    -      -       +      +
    188B  GLU*     2.9    26.1    +      -       +      +
    189B  THR*     3.6    13.0    -      -       +      +
    191B  LYS*     1.3    75.5    -      -       -      +
    193B  GLY*     1.3    62.8    +      -       -      +
    195B  GLU*     3.2    24.3    -      -       -      +
    196B  ARG*     3.3    46.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 193 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167B  VAL*     3.7    18.5    -      -       -      +
    168B  LEU*     4.1     2.7    -      -       -      +
    189B  THR      3.1    10.5    +      -       -      -
    190B  ILE      3.2     2.9    +      -       -      -
    192B  ILE*     1.3    78.9    -      -       -      +
    194B  VAL*     1.3    62.3    +      -       -      +
    196B  ARG*     3.3     4.3    +      -       -      +
    197B  VAL*     3.1    26.3    +      -       -      +
    226B  PHE*     3.7    24.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 194 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    190B  ILE*     2.9    22.8    +      -       +      +
    191B  LYS*     3.8     7.4    -      -       +      +
    193B  GLY*     1.3    75.7    -      -       -      +
    195B  GLU*     1.3    59.4    +      -       -      +
    197B  VAL*     3.2     2.3    +      -       -      +
    198B  GLU*     2.8    34.0    +      -       +      +
    226B  PHE*     4.3     1.1    -      -       +      -
    229B  ALA*     3.5    39.3    -      -       +      +
    230B  ILE*     4.1    12.1    -      -       +      -
    233B  PHE*     3.9    21.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 195 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145B  LYS*     3.9    47.0    +      -       +      +
    172B  ARG*     2.8    49.5    +      -       -      +
    191B  LYS*     2.8    26.8    +      -       +      +
    192B  ILE*     3.2    20.5    -      -       -      +
    194B  VAL*     1.3    75.2    -      -       -      +
    196B  ARG*     1.3    60.6    +      -       +      +
    198B  GLU*     3.9    11.8    -      -       -      +
    199B  ALA*     2.9    30.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 196 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143B  GLY*     2.9    27.5    +      -       -      -
    145B  LYS*     4.3     9.9    -      -       -      -
    148B  TYR*     3.3    53.2    +      -       +      +
    167B  VAL*     2.9    39.1    +      -       +      -
    170B  HIS      2.8    22.2    +      -       -      +
    171B  ASP      3.0    26.7    +      -       -      -
    172B  ARG*     3.9     1.6    -      -       -      +
    192B  ILE*     3.3    27.2    +      -       -      +
    193B  GLY      3.6     5.8    -      -       -      +
    194B  VAL      3.1     0.4    -      -       -      -
    195B  GLU*     1.3    79.3    +      -       +      +
    197B  VAL*     1.3    66.1    +      -       -      +
    199B  ALA*     3.5     5.7    +      -       -      +
    200B  ILE*     3.0    31.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 197 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    165B  VAL*     5.4     1.8    -      -       +      -
    167B  VAL*     3.8    24.2    -      -       +      -
    193B  GLY      3.1    13.7    +      -       -      +
    194B  VAL      3.8     5.4    -      -       -      +
    196B  ARG*     1.3    74.7    -      -       -      +
    198B  GLU*     1.3    57.8    +      -       -      +
    200B  ILE*     3.3     9.2    +      -       -      +
    201B  ARG*     2.8    27.5    +      -       -      +
    210B  ILE*     4.4    10.2    -      -       +      +
    212B  VAL*     4.2    14.6    -      -       +      -
    230B  ILE*     4.1    15.7    -      -       +      -
    233B  PHE*     3.7    32.8    -      -       +      -
    235B  ILE*     3.8    16.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 198 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194B  VAL*     2.8    25.1    +      -       -      +
    195B  GLU*     3.9    10.7    -      -       -      +
    197B  VAL*     1.3    72.0    -      -       -      +
    199B  ALA*     1.3    59.7    +      -       -      +
    201B  ARG*     3.8     0.4    -      -       -      -
    202B  ASN*     2.9    54.8    +      -       -      +
    232B  GLU*     5.6     0.2    -      -       -      +
    233B  PHE*     3.7    37.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 199 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145B  LYS*     3.6    34.8    -      -       +      +
    146B  GLU*     5.3     0.7    -      -       -      -
    149B  ALA*     3.7    10.3    -      -       +      +
    195B  GLU      2.9    20.1    +      -       -      +
    196B  ARG      3.7     3.8    -      -       -      +
    198B  GLU*     1.3    74.4    +      -       -      +
    200B  ILE*     1.3    62.4    +      -       -      +
    202B  ASN*     3.9     6.5    -      -       -      +
    203B  ALA*     3.1    24.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 200 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131B  LEU*     4.4     5.2    -      -       +      -
    148B  TYR*     3.7    38.6    -      -       +      +
    149B  ALA*     4.2     5.4    -      -       -      +
    152B  ALA*     3.7    18.6    -      -       +      -
    163B  VAL*     4.3     6.7    -      -       +      -
    165B  VAL*     3.7    35.4    -      -       +      -
    167B  VAL*     4.9     0.2    -      -       +      -
    196B  ARG      3.0    24.5    +      -       -      +
    197B  VAL*     3.3     5.8    +      -       -      +
    199B  ALA*     1.3    76.4    -      -       -      +
    201B  ARG*     1.3    57.6    +      -       -      +
    203B  ALA*     3.1     2.5    +      -       -      +
    204B  VAL*     2.9    34.4    +      -       +      +
    210B  ILE*     3.8    24.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 201 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    197B  VAL      2.8    20.7    +      -       -      +
    198B  GLU*     3.8     7.6    -      -       -      +
    200B  ILE*     1.3    71.7    -      -       -      +
    202B  ASN*     1.3    63.7    +      -       -      +
    204B  VAL*     4.1     2.3    -      -       -      +
    205B  GLY*     2.9    51.9    +      -       -      -
    206B  PRO*     4.1    12.3    +      -       -      -
    208B  VAL      2.8    26.9    +      -       -      -
    209B  ASP*     4.8     1.6    +      -       -      +
    210B  ILE*     3.5    36.2    -      -       +      +
    233B  PHE*     2.8    37.6    +      -       +      +
    234B  ASN*     2.9    37.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 202 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    198B  GLU*     2.9    42.2    +      -       -      +
    199B  ALA*     3.9     5.8    -      -       -      +
    201B  ARG*     1.3    82.0    -      -       -      +
    203B  ALA*     1.3    62.5    +      -       -      +
    205B  GLY*     4.0     4.5    +      -       -      -
    233B  PHE*     5.9     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 203 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    149B  ALA*     3.9    20.6    -      -       +      +
    153B  LEU*     3.6    35.6    -      -       +      +
    199B  ALA      3.1    18.7    +      -       -      +
    200B  ILE*     3.5     4.7    -      -       -      +
    202B  ASN*     1.3    80.2    -      -       -      +
    204B  VAL*     1.3    63.3    +      -       +      +
    205B  GLY      3.7     0.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 204 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    152B  ALA*     3.8    29.6    -      -       +      -
    153B  LEU*     4.7     4.5    -      -       +      +
    156B  VAL*     3.8    21.4    -      -       +      +
    163B  VAL*     5.6     0.9    -      -       +      -
    200B  ILE*     2.9    33.2    +      -       +      +
    201B  ARG*     4.0    11.9    -      -       -      +
    203B  ALA*     1.3    76.6    -      -       +      +
    205B  GLY*     1.3    73.2    +      -       -      +
    207B  ASP      4.7     0.9    +      -       -      -
    208B  VAL*     3.7    39.9    +      -       +      +
    210B  ILE*     4.4     2.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 205 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201B  ARG*     2.9    40.2    +      -       -      -
    202B  ASN      4.0     4.4    +      -       -      -
    203B  ALA      3.4     3.2    +      -       -      -
    204B  VAL*     1.3    83.8    -      -       -      +
    206B  PRO*     1.3    71.5    -      -       -      +
    207B  ASP      3.4     1.2    +      -       -      -
    208B  VAL      3.9     0.9    +      -       -      -
----------------------------------------------------------
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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