Contacts of the helix formed by residues 369 - 383 (chain C) in PDB entry 2O1S


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 369 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156C  THR*     5.0     2.9    -      -       +      +
    344C  PRO*     4.1     4.2    -      -       -      +
    366C  VAL*     3.3    31.3    -      -       +      +
    367C  ALA      2.7     8.5    +      -       -      -
    368C  ILE*     1.3    72.6    -      -       -      +
    370C  GLU*     1.3    66.4    +      -       -      +
    371C  GLN      3.2     2.8    +      -       -      -
    373C  ALA*     3.1    18.2    +      -       -      +
    162D  GLU*     3.1    41.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 370 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    344C  PRO*     3.9    22.9    -      -       +      +
    368C  ILE*     4.0     4.0    -      -       -      +
    369C  ALA*     1.3    78.1    +      -       -      +
    371C  GLN*     1.3    64.2    +      -       -      +
    373C  ALA*     3.3    10.7    +      -       -      +
    374C  VAL*     3.4     9.7    +      -       -      +
    391C  ILE*     3.7    19.4    -      -       +      +
    395C  PHE*     3.3    34.5    -      -       +      +
    398C  ARG*     3.7    17.6    -      -       +      +
    399C  ALA*     3.3    18.2    -      -       +      +
   3002C  TPP      2.7    47.8    +      -       -      +
    162D  GLU*     4.5     0.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 371 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    369C  ALA      3.2     0.8    -      -       -      -
    370C  GLU*     1.3    79.6    -      -       -      +
    372C  HIS*     1.3    63.0    +      -       -      +
    374C  VAL      3.4     6.8    +      -       -      -
    375C  THR*     3.4     4.0    +      -       -      -
    398C  ARG*     3.0    32.8    -      -       +      +
    399C  ALA*     4.0     0.4    -      -       -      -
    402C  GLN*     3.3    42.0    +      -       -      +
    159D  MSE      3.4    34.9    -      -       +      +
    162D  GLU*     3.5    12.9    +      -       -      +
    371D  GLN*     3.3    30.9    -      -       -      +
    398D  ARG*     3.2    27.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 372 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    366C  VAL*     3.3    25.4    -      -       +      +
    369C  ALA      3.5     2.6    +      -       -      +
    371C  GLN*     1.3    75.5    -      -       -      +
    373C  ALA*     1.3    57.4    +      -       -      +
    375C  THR      4.6     0.2    -      -       -      +
    376C  PHE*     2.8    39.4    +      -       +      +
    128D  SER*     2.9    38.3    -      -       -      +
    131D  ILE*     3.7    19.7    -      -       +      +
    159D  MSE      4.4     3.3    -      -       -      +
    162D  GLU*     3.0    31.7    +      -       +      +
    163D  ALA*     3.6    20.9    -      -       +      +
    166D  HIS*     2.8    44.0    +      +       +      +
----------------------------------------------------------
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Residues in contact with ALA 373 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    342C  ILE*     4.0    19.4    -      -       +      +
    344C  PRO*     4.0    21.1    -      -       +      -
    366C  VAL*     4.3    15.5    -      -       +      -
    369C  ALA      3.1    18.8    +      -       -      +
    370C  GLU      3.5     7.9    -      -       -      +
    371C  GLN      3.1     0.4    -      -       -      -
    372C  HIS*     1.3    78.1    +      -       -      +
    374C  VAL*     1.3    61.0    +      -       -      +
    376C  PHE*     3.6     2.6    -      -       -      +
    377C  ALA*     3.2    20.3    +      -       -      +
    389C  VAL*     3.9    13.2    -      -       +      +
    391C  ILE*     5.8     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 374 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    370C  GLU      3.7    12.1    -      -       -      +
    371C  GLN      3.4     2.3    +      -       -      +
    372C  HIS      3.3     0.2    -      -       -      -
    373C  ALA*     1.3    76.1    -      -       -      +
    375C  THR*     1.3    59.3    +      -       -      +
    376C  PHE      3.2     0.4    -      -       -      -
    377C  ALA*     3.1     9.8    +      -       -      +
    378C  ALA*     2.9    23.2    +      -       -      +
    389C  VAL*     4.3    11.7    -      -       +      -
    391C  ILE*     5.2     1.1    -      -       +      -
    396C  LEU*     4.6     3.1    -      -       +      -
    399C  ALA*     3.7    16.4    -      -       +      -
    402C  GLN*     3.8    22.2    -      -       +      -
    403C  VAL*     3.9     9.2    -      -       +      +
    407C  VAL*     3.6    25.5    -      -       +      +
    416C  PHE*     3.8    29.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 375 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    371C  GLN      3.4     7.4    +      -       -      -
    372C  HIS      4.3     0.2    -      -       -      -
    374C  VAL*     1.3    75.1    -      -       -      +
    376C  PHE*     1.3    61.3    +      -       -      +
    378C  ALA*     3.2     9.0    +      -       +      +
    379C  GLY      3.0    21.0    +      -       -      -
    402C  GLN*     3.1    16.6    -      -       -      +
    406C  ASP*     2.5    26.0    +      -       +      +
    118D  LEU*     5.6     0.2    -      -       +      -
    125D  THR*     3.4    29.4    -      -       +      -
    128D  SER*     3.3    27.1    -      -       -      -
    129D  ALA*     3.4    14.2    -      -       +      +
    159D  MSE      4.9     3.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 376 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    342C  ILE*     3.4    32.8    -      -       +      -
    364C  PHE*     3.5    51.6    -      +       +      -
    366C  VAL*     4.4     1.1    -      -       +      -
    372C  HIS*     2.8    32.1    +      +       +      +
    373C  ALA      3.6     2.7    -      -       -      +
    375C  THR*     1.3    76.4    -      -       -      +
    377C  ALA*     1.3    64.6    +      -       -      +
    379C  GLY*     2.9    11.4    +      -       -      -
    380C  LEU*     3.0    21.8    +      -       +      +
    128D  SER*     3.9     8.2    +      -       -      -
    131D  ILE*     3.3    34.8    -      -       +      -
    132D  GLY*     3.4    23.8    -      -       -      -
    135D  VAL*     3.9     9.0    -      -       +      -
    166D  HIS*     3.9    10.8    -      +       -      -
----------------------------------------------------------
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Residues in contact with ALA 377 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    342C  ILE*     3.9    10.5    -      -       +      -
    373C  ALA      3.2     4.2    +      -       -      +
    374C  VAL      3.1    13.4    +      -       -      +
    376C  PHE*     1.3    80.9    -      -       -      +
    378C  ALA*     1.3    60.0    +      -       -      +
    380C  LEU*     3.0    11.1    +      -       -      +
    381C  ALA*     3.0    11.1    +      -       -      +
    387C  PRO*     3.3    27.6    -      -       +      +
    389C  VAL*     3.5    30.1    -      -       +      -
    414C  VAL*     3.9    11.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 378 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    374C  VAL      2.9    10.0    +      -       -      +
    375C  THR*     3.2    22.9    -      -       +      +
    376C  PHE      3.1     0.2    -      -       -      -
    377C  ALA*     1.3    75.8    -      -       -      +
    379C  GLY*     1.3    62.9    +      -       -      +
    381C  ALA      3.4     0.7    +      -       -      -
    382C  ILE*     3.1    30.5    +      -       +      +
    406C  ASP*     4.0    13.9    -      -       +      +
    407C  VAL*     4.3     5.8    -      -       +      -
    410C  GLN*     5.2     1.3    -      -       -      +
    412C  LEU*     3.5    24.9    -      -       +      +
    414C  VAL*     4.2     7.2    -      -       -      +
    118D  LEU*     5.5     0.2    -      -       +      -
    129D  ALA*     5.1     3.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 379 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    375C  THR      3.0     7.3    +      -       -      -
    376C  PHE      2.9     8.6    +      -       -      -
    378C  ALA*     1.3    77.2    -      -       -      +
    380C  LEU*     1.3    60.3    +      -       -      +
    382C  ILE*     3.2     2.5    +      -       -      -
    383C  GLY      3.0    16.8    +      -       -      -
    129D  ALA*     3.4    30.3    -      -       -      +
    132D  GLY      3.6     6.9    -      -       -      -
    133D  ILE*     3.5    17.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 380 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    340C  MSE      3.9    30.3    -      -       +      -
    342C  ILE*     3.8    28.5    -      -       +      -
    364C  PHE*     4.7     2.9    -      -       +      -
    376C  PHE*     3.0    24.8    +      -       +      +
    377C  ALA      3.0     6.7    +      -       -      +
    379C  GLY*     1.3    74.6    -      -       -      +
    381C  ALA*     1.3    61.4    +      -       -      +
    383C  GLY*     3.1     8.2    +      -       -      +
    384C  GLY      3.3     0.2    +      -       -      -
    385C  TYR*     3.0    34.9    +      -       +      +
    387C  PRO*     4.0    12.6    -      -       +      -
    132D  GLY*     3.3    24.9    -      -       -      +
    135D  VAL*     4.2    21.3    -      -       +      -
    136D  ALA*     4.4     7.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 381 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    377C  ALA      3.0    12.0    +      -       -      +
    378C  ALA      3.8     7.4    -      -       -      +
    380C  LEU*     1.3    72.0    -      -       -      +
    382C  ILE*     1.3    66.4    +      -       -      +
    383C  GLY      3.0     1.6    -      -       -      -
    384C  GLY*     3.0    14.2    +      -       -      -
    385C  TYR      3.4    13.0    -      -       -      +
    387C  PRO*     3.9    13.8    -      -       +      +
    412C  LEU*     4.2    25.0    -      -       +      +
    413C  PRO*     4.5    15.0    -      -       +      +
    414C  VAL*     4.4     4.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 382 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    378C  ALA      3.1    19.1    +      -       -      +
    379C  GLY*     3.2     8.0    +      -       -      +
    381C  ALA*     1.3    76.3    -      -       -      +
    383C  GLY*     1.3    59.6    +      -       -      +
    384C  GLY      3.2     1.4    +      -       -      -
    410C  GLN*     4.2     4.7    -      -       -      +
    412C  LEU*     3.7    27.6    -      -       +      -
     73D  GLN*     4.9     4.8    -      -       -      +
    117D  VAL*     3.6    42.8    -      -       +      +
    118D  LEU*     4.1    20.6    -      -       +      -
    129D  ALA*     5.0     0.2    -      -       +      -
    133D  ILE*     4.1    15.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 383 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    379C  GLY      3.0     9.9    +      -       -      -
    380C  LEU      3.1     4.5    +      -       -      -
    381C  ALA      3.0     1.2    -      -       -      -
    382C  ILE*     1.3    79.2    -      -       -      +
    384C  GLY*     1.3    58.1    +      -       -      +
    385C  TYR*     3.5    19.0    -      -       -      -
    133D  ILE*     5.2     6.1    -      -       -      -
    136D  ALA*     3.7    19.8    -      -       -      +
    140D  GLU*     6.1     1.2    -      -       -      -
----------------------------------------------------------
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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