Contacts of the helix formed by residues 6946 - 6958 (chain A) in PDB entry 6W4H


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 GLY6946 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   6945A  GLU*     1.3    76.9    -      -       -      +
   6947A  PHE*     1.3    63.8    +      -       -      -
   6949A  THR*     3.1    19.3    +      -       -      -
   6950A  TYR*     3.8     3.3    +      -       -      +
   7104A  ACT      3.4    11.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE6947 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   6912A  ASP*     5.8     0.2    -      -       -      -
   6913A  CYS*     3.5    28.7    -      -       -      -
   6927A  SER*     5.1     2.5    -      -       -      -
   6929A  MET*     3.3    45.1    -      -       +      -
   6930A  TYR*     3.8    18.4    -      -       -      -
   6931A  ASP      4.5     0.2    -      -       -      -
   6946A  GLY*     1.3    70.8    -      -       -      -
   6948A  PHE*     1.3   100.1    +      +       -      +
   6950A  TYR*     3.2     6.5    +      -       -      +
   6951A  ILE*     3.0    30.7    +      -       +      +
   6967A  ILE*     5.9     0.9    -      -       +      -
   6968A  LYS      5.2     0.9    -      -       -      -
   6973A  SER*     3.9     9.0    -      -       -      -
   7102A  SAM      3.7    27.8    +      -       -      +
   7104A  ACT      3.1    39.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE6948 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   6944A  LYS*     3.9     8.7    -      -       +      -
   6945A  GLU      2.9     9.3    +      -       -      +
   6947A  PHE*     1.3    99.5    -      +       -      +
   6949A  THR*     1.3    63.4    +      -       -      +
   6951A  ILE*     3.3     5.6    +      -       +      +
   6952A  CYS*     3.0    30.5    +      -       -      -
   6967A  ILE*     4.3     6.3    -      -       +      -
   6968A  LYS      4.1    10.8    -      -       -      -
   6969A  ILE*     4.1     8.3    -      -       +      -
   6973A  SER*     3.4    39.7    -      -       -      -
   6974A  TRP*     3.5    18.2    -      -       -      -
   6975A  ASN*     3.4    29.8    -      -       +      +
   6978A  LEU*     3.9    27.1    -      -       +      -
   7104A  ACT      3.7    22.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR6949 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   6945A  GLU*     3.5    30.7    +      -       -      +
   6946A  GLY      3.1     9.3    +      -       -      -
   6948A  PHE*     1.3    78.0    -      -       -      +
   6950A  TYR*     1.3    63.3    -      -       -      +
   6952A  CYS*     3.5     6.1    +      -       -      +
   6953A  GLY*     3.2    17.8    +      -       -      -
   6975A  ASN*     4.7     3.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR6950 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   6868A  PHE*     3.8    24.8    -      +       -      -
   6913A  CYS*     3.0    48.0    +      -       +      -
   6914A  ALA*     3.6    20.4    -      -       +      -
   6916A  VAL*     2.8    33.8    +      -       -      +
   6917A  HIS*     6.0     2.0    -      +       -      -
   6946A  GLY      3.8     1.3    +      -       -      +
   6947A  PHE*     3.2    11.7    +      -       -      +
   6949A  THR*     1.3    80.1    -      -       -      +
   6951A  ILE*     1.3    59.9    +      -       +      +
   6953A  GLY*     3.2     3.0    +      -       -      -
   6954A  PHE*     2.8    67.3    +      +       +      +
----------------------------------------------------------
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Residues in contact with ILE6951 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   6868A  PHE*     3.8    28.0    -      -       +      -
   6925A  ILE*     4.7     4.3    -      -       +      -
   6927A  SER*     4.3    11.9    -      -       -      +
   6929A  MET*     3.6    27.1    -      -       +      -
   6947A  PHE*     3.0    23.2    +      -       +      +
   6948A  PHE*     3.3     7.2    +      -       +      +
   6950A  TYR*     1.3    81.6    -      -       +      +
   6952A  CYS*     1.3    59.6    +      -       -      +
   6954A  PHE*     3.7     4.3    -      -       +      +
   6955A  ILE*     2.9    49.2    +      -       +      +
   6967A  ILE*     3.9    25.6    -      -       +      -
   6978A  LEU*     4.4     9.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS6952 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   6948A  PHE      3.0    21.1    +      -       -      +
   6949A  THR*     3.8     6.1    -      -       -      +
   6951A  ILE*     1.3    77.0    -      -       -      +
   6953A  GLY*     1.3    62.8    +      -       -      +
   6955A  ILE*     3.5     1.1    +      -       -      -
   6956A  GLN*     3.2    33.8    +      -       -      +
   6975A  ASN*     3.7    10.8    -      -       -      -
   6977A  ASP*     3.9    10.1    -      -       +      -
   6978A  LEU*     3.5    41.7    -      -       -      -
   6981A  LEU*     3.6    21.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY6953 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   6949A  THR      3.2     7.6    +      -       -      -
   6950A  TYR*     3.2     6.4    +      -       -      -
   6952A  CYS*     1.3    75.5    -      -       -      +
   6954A  PHE*     1.3    60.2    +      -       -      +
   6956A  GLN*     3.4     7.8    +      -       -      -
   6957A  GLN*     2.9    52.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE6954 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   6866A  ILE*     3.9    19.7    -      -       +      -
   6868A  PHE*     4.1    17.5    -      +       -      -
   6916A  VAL*     5.0     2.2    -      -       +      -
   6918A  THR*     3.9    19.5    -      -       +      -
   6922A  TRP*     3.7    31.0    -      +       -      -
   6925A  ILE*     3.5    27.6    -      -       +      -
   6950A  TYR*     2.8    58.7    +      +       +      +
   6951A  ILE*     3.7     8.1    -      -       +      +
   6953A  GLY*     1.3    70.7    -      -       -      +
   6955A  ILE*     1.3    56.9    +      -       -      +
   6957A  GLN*     4.9     0.7    -      -       -      -
   6958A  LYS*     2.7    53.8    +      -       +      +
   6959A  LEU      3.5     0.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE6955 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   6925A  ILE*     4.1     9.2    -      -       +      -
   6951A  ILE*     2.9    39.8    +      -       +      +
   6952A  CYS*     3.8     6.1    -      -       -      +
   6954A  PHE*     1.3    76.2    -      -       +      +
   6956A  GLN*     1.3    62.2    +      -       +      +
   6959A  LEU*     3.1    50.0    +      -       +      +
   6965A  VAL*     4.1    30.7    -      -       +      -
   6967A  ILE*     4.7     1.6    -      -       +      -
   6978A  LEU*     4.0    18.4    -      -       +      -
   6981A  LEU*     4.8    11.4    -      -       +      -
   6982A  MET*     5.1     1.6    -      -       +      -
   6985A  PHE*     4.1    14.8    -      -       +      -
   7009A  TYR*     3.8    17.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN6956 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   6921A  LYS*     5.2     4.3    +      -       -      -
   6952A  CYS*     3.2    23.5    +      -       -      +
   6953A  GLY*     3.9     7.0    -      -       -      +
   6955A  ILE*     1.3    76.7    -      -       +      +
   6957A  GLN*     1.3    63.2    +      -       +      +
   6959A  LEU      5.0     0.9    -      -       -      +
   6981A  LEU*     3.5    35.1    -      -       +      +
   6984A  HIS*     4.8     8.5    -      -       -      +
   7009A  TYR*     3.5    21.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN6957 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   6921A  LYS*     3.5    22.5    +      -       -      +
   6953A  GLY*     2.9    33.0    +      -       -      +
   6954A  PHE*     4.9     0.6    -      -       -      -
   6956A  GLN*     1.3    84.9    -      -       +      +
   6958A  LYS*     1.3    84.0    +      -       +      +
   6959A  LEU      3.8     0.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS6958 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   6918A  THR*     2.8    32.6    +      -       -      +
   6919A  ALA*     3.9    14.1    +      -       -      +
   6920A  ASN      3.7    14.6    -      -       -      +
   6921A  LYS*     3.1    10.6    -      -       +      +
   6922A  TRP*     2.7    38.6    +      -       +      +
   6954A  PHE*     2.7    51.0    +      -       +      +
   6957A  GLN*     1.3    96.1    +      -       +      +
   6959A  LEU*     1.3    54.4    +      -       -      +
----------------------------------------------------------
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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