Contacts of the helix formed by residues 390 - 400 (chain C) in PDB entry 6QX2


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 HIS 390 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    386C  ILE*     2.9    45.2    +      -       +      +
    387C  ALA      3.4     3.8    -      -       -      -
    389C  ASP*     1.3    90.4    +      -       +      +
    391C  ILE*     1.3    62.5    +      -       -      +
    392C  ASP*     3.3     3.4    -      -       -      -
    393C  GLU*     3.1    38.7    +      -       -      +
    394C  ILE*     3.1    11.9    +      -       +      +
    415C  PHE*     4.1    17.3    -      +       +      -
----------------------------------------------------------
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Residues in contact with ILE 391 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    395A  ILE*     5.3     0.9    -      -       +      -
    399A  ARG*     3.1    45.5    -      -       -      +
    430A  LEU*     4.5    11.0    -      -       +      -
    387C  ALA      3.0    18.1    +      -       -      +
    388C  LEU*     3.7    12.8    -      -       -      +
    389C  ASP      3.7     0.8    +      -       -      -
    390C  HIS*     1.3    75.9    -      -       -      +
    392C  ASP*     1.3    63.9    -      -       -      +
    394C  ILE*     3.2     9.7    +      -       +      -
    395C  ILE*     3.0    49.6    +      -       +      +
    428C  MET*     4.9     2.7    -      -       +      -
    433C  LEU*     3.6    39.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 392 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    395A  ILE*     5.9     2.8    -      -       -      +
    399A  ARG*     3.0    27.8    +      -       -      -
    390C  HIS      3.2     1.0    +      -       -      -
    391C  ILE*     1.3    78.0    -      -       -      +
    393C  GLU*     1.3    63.0    +      -       +      +
    395C  ILE*     3.6     7.7    +      -       -      +
    396C  SER*     3.1    26.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 393 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    390C  HIS*     3.1    33.7    +      -       +      +
    392C  ASP*     1.3    74.6    -      -       +      +
    394C  ILE*     1.3    61.1    +      -       -      +
    396C  SER*     3.3     8.1    +      -       -      -
    397C  THR*     2.8    32.6    +      -       -      +
    414C  ARG*     5.3     4.7    -      -       -      +
    415C  PHE*     3.8    19.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 394 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    430A  LEU*     4.5     2.9    -      -       +      -
    386C  ILE*     5.0     1.1    -      -       +      +
    387C  ALA*     3.6    31.6    -      -       +      +
    390C  HIS*     3.1    15.1    +      -       +      +
    391C  ILE*     3.2    18.6    +      -       +      +
    393C  GLU*     1.3    75.2    -      -       -      +
    395C  ILE*     1.3    62.6    +      -       -      +
    397C  THR*     3.4     8.1    -      -       -      -
    398C  ILE*     3.1    41.8    +      -       +      +
    411C  LEU*     3.9    11.6    -      -       +      +
    415C  PHE*     3.7    33.7    -      -       +      -
    417C  LEU*     5.1     1.3    -      -       +      -
    425C  ILE*     4.0    22.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 395 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    391A  ILE*     5.5     1.8    -      -       +      -
    395A  ILE*     4.3    29.6    -      -       +      -
    430A  LEU*     3.7    32.3    -      -       +      -
    433A  LEU*     4.3    11.8    -      -       +      +
    391C  ILE*     3.0    35.3    +      -       +      +
    392C  ASP*     3.8     7.4    -      -       -      +
    393C  GLU      3.3     0.2    -      -       -      -
    394C  ILE*     1.3    74.9    -      -       -      +
    396C  SER*     1.3    52.2    +      -       -      +
    398C  ILE*     3.1     9.1    +      -       +      +
    399C  ARG*     2.8    62.8    +      -       +      +
    433C  LEU*     5.0     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 396 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    392C  ASP      3.1    13.7    +      -       -      -
    393C  GLU*     3.3     9.4    +      -       -      -
    395C  ILE*     1.3    77.1    -      -       -      +
    397C  THR*     1.3    56.9    +      -       -      +
    399C  ARG*     3.1    13.6    +      -       -      +
    400C  GLU*     2.9    40.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 397 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    393C  GLU*     2.8    18.9    +      -       -      +
    394C  ILE      3.4     9.0    -      -       -      -
    396C  SER*     1.3    74.6    -      -       -      +
    398C  ILE*     1.3    54.0    +      -       -      +
    400C  GLU*     3.5    18.6    +      -       -      +
    401C  SER*     2.6    31.9    +      -       -      +
    407C  ALA      4.8     0.2    -      -       -      +
    410C  SER*     3.6    34.0    -      -       -      +
    411C  LEU*     3.9    22.4    -      -       +      +
    414C  ARG*     4.7     6.5    -      -       +      +
    415C  PHE*     3.8    14.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 398 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    430A  LEU*     3.5    41.7    -      -       +      +
    433A  LEU*     4.4     8.5    -      -       +      -
    434A  THR*     3.5    20.7    -      -       +      +
    394C  ILE*     3.1    38.3    +      -       +      +
    395C  ILE*     3.1     8.7    +      -       +      +
    397C  THR*     1.3    73.4    -      -       -      +
    399C  ARG*     1.3    64.3    +      -       -      +
    401C  SER*     3.3    25.1    +      -       -      +
    407C  ALA*     4.5     3.1    -      -       +      -
    411C  LEU*     4.1    17.0    -      -       +      -
    425C  ILE*     4.7     2.5    -      -       +      -
    426C  LEU*     4.0    27.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 399 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    391A  ILE*     3.5    32.7    -      -       -      +
    392A  ASP*     4.9    13.8    -      -       -      +
    433A  LEU*     3.8    32.6    -      -       +      +
    435A  GLY*     4.5     6.4    +      -       -      -
    395C  ILE*     2.8    37.3    +      -       +      +
    396C  SER*     3.1    10.3    +      -       -      +
    398C  ILE*     1.3    72.9    -      -       -      +
    400C  GLU*     1.3    59.8    -      -       -      +
    401C  SER      3.1    12.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 400 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    396C  SER*     2.9    21.8    +      -       -      +
    397C  THR*     3.5    25.7    +      -       -      +
    399C  ARG*     1.3    73.8    -      -       -      +
    401C  SER*     1.3    59.7    +      -       -      +
    402C  ASP*     3.6    12.2    -      -       -      +
    410C  SER*     5.6     2.6    -      -       -      +
----------------------------------------------------------
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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