Contacts of the helix formed by residues 238 - 252 (chain A) in PDB entry 4OE5


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 ALA 238 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81A  GLN*     3.8     4.5    -      -       -      +
    151A  GLN*     3.5    27.1    -      -       +      +
    212A  PHE      4.5     4.0    -      -       -      +
    214A  ALA      3.4    25.4    -      -       -      +
    215A  ILE*     4.6     0.9    -      -       -      -
    235A  SER*     3.0    14.6    +      -       -      +
    237A  THR*     1.3    79.3    +      -       -      +
    239A  MET*     1.3    62.7    +      -       -      +
    240A  LEU      3.3     2.9    -      -       -      -
    241A  ALA*     3.3     6.2    +      -       -      -
    242A  SER*     3.0    25.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 239 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  ILE*     4.0    15.0    -      -       +      -
     81A  GLN*     3.3     9.8    +      -       +      +
     92A  ALA*     4.9     0.2    -      -       +      -
     94A  PHE*     3.8    37.9    -      -       +      -
    234A  PRO*     4.0    14.1    -      -       +      +
    235A  SER      3.2    22.1    +      -       -      +
    236A  ASP*     3.3    17.9    +      -       -      +
    238A  ALA*     1.3    78.2    -      -       -      +
    240A  LEU*     1.3    63.3    +      -       -      +
    242A  SER*     3.3     2.3    +      -       -      -
    243A  TYR*     2.9    24.9    +      -       -      +
    261A  PHE*     3.7    22.2    -      -       -      -
    263A  PRO*     3.6    38.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 240 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57A  LEU*     4.3    18.2    -      -       +      -
     62A  GLU*     3.4    34.8    -      -       +      +
     64A  ILE*     3.9     7.4    -      -       +      +
     81A  GLN*     2.7    24.6    +      -       -      +
     91A  VAL*     3.9    36.6    -      -       +      +
     92A  ALA*     4.5     3.8    -      -       +      -
    146A  LYS*     3.7    44.0    -      -       +      +
    149A  VAL*     5.3     0.9    -      -       +      -
    150A  GLY*     5.0     3.1    -      -       -      +
    238A  ALA      3.3     0.4    -      -       -      -
    239A  MET*     1.3    72.9    -      -       -      +
    241A  ALA*     1.3    61.7    +      -       -      +
    243A  TYR*     3.6     3.1    +      -       -      +
    244A  ALA*     3.2    21.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 241 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143A  ILE*     3.6    10.7    -      -       +      +
    146A  LYS*     4.1    14.3    +      -       +      +
    147A  THR*     3.5    23.1    -      -       +      +
    151A  GLN*     3.3    25.5    +      -       -      +
    215A  ILE*     4.4     7.6    -      -       +      -
    238A  ALA      3.3     3.0    +      -       -      +
    240A  LEU*     1.3    77.0    -      -       -      +
    242A  SER*     1.3    65.9    +      -       -      +
    244A  ALA*     3.2     4.5    +      -       -      +
    245A  VAL*     3.1    26.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 242 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    214A  ALA      4.4     0.5    +      -       -      -
    215A  ILE*     2.5    36.7    +      -       -      -
    232A  TRP*     3.5    16.6    -      -       -      -
    234A  PRO*     3.9    26.9    -      -       -      +
    235A  SER      4.9     0.3    +      -       -      -
    238A  ALA*     3.0    22.6    +      -       -      +
    239A  MET*     3.7     4.5    -      -       -      -
    241A  ALA*     1.3    78.0    -      -       -      +
    243A  TYR*     1.3    61.9    +      -       -      +
    245A  VAL*     3.3     2.4    +      -       -      +
    246A  TYR*     3.0    18.0    +      -       -      +
    261A  PHE*     4.0     4.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 243 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62A  GLU*     3.4    28.0    -      -       -      -
     63A  ALA      5.2     0.7    -      -       -      -
     64A  ILE*     3.4    28.7    -      -       +      -
     65A  PRO*     3.7    24.9    -      -       +      +
     67A  VAL*     3.9    25.9    -      -       +      +
     72A  GLU*     4.2     9.2    +      -       -      -
    239A  MET      2.9    16.7    +      -       -      +
    240A  LEU      4.1     0.7    -      -       -      +
    242A  SER*     1.3    77.4    -      -       -      +
    244A  ALA*     1.3    59.4    +      -       -      +
    246A  TYR*     3.1    13.1    +      +       -      +
    247A  ARG*     2.9    58.7    +      -       +      +
    261A  PHE*     3.5    31.3    -      +       +      -
----------------------------------------------------------
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Residues in contact with ALA 244 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62A  GLU*     6.1     0.2    -      -       -      -
    139A  ARG*     5.0     0.5    +      -       -      -
    142A  GLU*     3.4    26.9    -      -       -      +
    143A  ILE*     4.3     9.6    -      -       +      -
    146A  LYS*     3.8    16.4    -      -       +      +
    240A  LEU      3.2    14.2    +      -       -      +
    241A  ALA*     3.2    11.4    +      -       -      +
    242A  SER      3.2     1.0    -      -       -      -
    243A  TYR*     1.3    79.0    -      -       -      +
    245A  VAL*     1.3    56.5    +      -       -      +
    247A  ARG*     3.5     5.9    +      -       -      +
    248A  ILE*     3.1    35.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 245 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135A  LEU*     4.6     7.6    -      -       +      -
    143A  ILE*     3.8    18.2    -      -       +      -
    166A  LEU*     3.9    27.6    -      -       +      -
    170A  PHE*     4.4     8.7    -      -       +      -
    215A  ILE*     3.8    17.0    -      -       +      -
    217A  GLY*     4.2    12.1    -      -       -      -
    232A  TRP*     4.8     3.8    -      -       +      -
    241A  ALA      3.1    14.1    +      -       -      +
    242A  SER*     3.6     7.9    -      -       -      +
    243A  TYR      3.2     0.2    -      -       -      -
    244A  ALA*     1.3    73.9    -      -       -      +
    246A  TYR*     1.3    58.8    +      -       -      +
    248A  ILE*     3.3     9.0    +      -       +      +
    249A  LEU*     2.9    43.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 246 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67A  VAL*     3.5    33.5    +      -       +      +
     69A  GLY      4.0     1.7    +      -       -      -
    232A  TRP*     4.1     9.4    -      +       +      -
    242A  SER      3.0    13.8    +      -       -      +
    243A  TYR*     3.1    24.4    +      +       -      +
    245A  VAL*     1.3    77.2    -      -       -      +
    247A  ARG*     1.3    70.5    +      -       +      +
    249A  LEU*     3.1    13.7    +      -       +      +
    250A  ARG*     3.0    63.3    +      -       +      +
    254A  LEU*     5.3     0.7    -      -       +      -
    257A  ASN      5.6     0.2    +      -       -      -
    259A  ILE*     2.8    50.8    +      -       +      -
    260A  GLN*     5.0     0.2    +      -       -      -
    261A  PHE*     3.7    31.9    +      +       +      -
----------------------------------------------------------
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Residues in contact with ARG 247 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70A  ASP*     5.7     1.0    +      -       -      -
     72A  GLU*     5.6     5.5    +      -       -      -
    139A  ARG*     4.8     4.0    -      -       -      +
    243A  TYR*     2.9    50.6    +      -       +      +
    244A  ALA*     3.8     7.2    -      -       -      +
    246A  TYR*     1.3    80.6    -      -       -      +
    248A  ILE*     1.3    58.8    +      -       -      +
    250A  ARG*     3.3    33.7    +      -       -      +
    251A  GLU*     2.8    62.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 248 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131A  ALA*     3.9    28.0    -      -       +      +
    134A  MET*     4.0    16.9    -      -       +      +
    135A  LEU*     3.5    25.4    -      -       +      -
    139A  ARG*     3.5    53.6    -      -       +      +
    142A  GLU*     4.8     5.4    -      -       -      +
    143A  ILE*     5.7     1.6    -      -       +      -
    244A  ALA*     3.1    22.3    +      -       +      +
    245A  VAL*     3.6     5.6    -      -       -      +
    246A  TYR      3.2     0.2    -      -       -      -
    247A  ARG*     1.3    76.8    -      -       -      +
    249A  LEU*     1.3    56.0    +      -       +      +
    251A  GLU*     3.2     7.6    +      -       -      +
    252A  ALA*     2.8    28.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 249 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127A  ILE*     4.0     5.7    -      -       +      +
    128A  PHE*     3.9    28.3    -      -       +      -
    131A  ALA*     3.7    23.1    -      -       +      -
    170A  PHE*     3.9    13.9    -      -       +      -
    217A  GLY      5.3     4.5    -      -       -      +
    220A  ALA*     6.0     0.7    -      -       +      -
    221A  GLY*     5.5     0.4    -      -       -      -
    232A  TRP*     5.3     6.3    -      -       +      -
    245A  VAL*     2.9    34.1    +      -       +      +
    246A  TYR*     3.4    12.6    -      -       +      +
    248A  ILE*     1.3    76.7    -      -       +      +
    250A  ARG*     1.3    61.6    +      -       -      +
    252A  ALA*     3.2    12.4    +      -       -      +
    253A  GLY      3.3     0.9    +      -       -      -
    254A  LEU*     3.1    33.9    +      -       +      +
    259A  ILE*     4.1    24.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 250 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67A  VAL*     4.4     3.8    -      -       -      +
     69A  GLY      2.9    24.9    +      -       -      -
     70A  ASP*     2.7    25.2    +      -       -      -
    246A  TYR*     3.0    57.9    +      -       +      +
    247A  ARG*     3.8    26.9    -      -       -      +
    249A  LEU*     1.3    74.6    -      -       -      +
    251A  GLU*     1.3    58.6    +      -       -      +
    253A  GLY*     2.8    21.8    +      -       -      -
    254A  LEU*     2.8    39.3    +      -       -      +
    255A  PRO      3.8     1.9    +      -       -      -
    256A  PRO*     3.3    29.8    -      -       -      +
    257A  ASN      5.0     0.4    -      -       -      +
    259A  ILE      5.1     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 251 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134A  MET*     3.6    14.3    -      -       +      +
    139A  ARG*     2.7    46.9    +      -       -      -
    247A  ARG*     2.8    47.2    +      -       -      +
    248A  ILE      3.6     4.7    -      -       -      +
    250A  ARG*     1.3    71.6    -      -       -      +
    252A  ALA*     1.3    58.3    +      -       -      +
    253A  GLY*     3.1     1.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 252 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127A  ILE*     3.5    37.1    -      -       +      +
    130A  LYS*     4.0    11.9    -      -       +      +
    131A  ALA*     3.8    20.9    -      -       +      +
    134A  MET*     4.1     8.5    -      -       -      -
    248A  ILE      2.8    15.8    +      -       -      +
    249A  LEU      3.4     7.0    -      -       -      +
    250A  ARG      3.1     0.4    -      -       -      -
    251A  GLU*     1.3    75.9    -      -       -      +
    253A  GLY*     1.3    56.8    +      -       -      +
    254A  LEU      3.7     0.2    -      -       -      -
----------------------------------------------------------
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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