Contacts of the helix formed by residues 1052 - 1062 (chain B) in PDB entry 6A5T


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 VAL1052 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    667A  ILE*     4.6    21.1    -      -       +      -
    671A  ILE*     5.0    11.7    -      -       +      -
    806A  LEU*     3.7    29.2    -      -       +      +
    761B  HIS*     5.2     3.4    -      -       +      -
   1027B  ILE*     4.1    27.8    -      -       +      -
   1030B  LEU*     4.7    10.3    -      -       +      +
   1051B  THR*     1.3    77.7    -      -       -      +
   1053B  ASP*     1.3    67.0    +      -       -      +
   1054B  ALA      3.7     0.2    -      -       -      -
   1055B  VAL*     3.7     7.8    -      -       -      +
   1056B  SER*     2.8    32.2    +      -       -      +
   1067B  ARG*     5.6     1.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP1053 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    671A  ILE*     6.0     0.3    -      -       -      +
    722B  THR*     5.2     4.2    +      -       -      +
    723B  ALA*     4.7    16.6    -      -       +      +
   1051B  THR*     3.2     7.2    +      -       +      +
   1052B  VAL*     1.3    76.9    -      -       -      +
   1054B  ALA*     1.3    59.4    +      -       -      +
   1055B  VAL      3.0     1.6    -      -       -      -
   1056B  SER*     2.3    33.5    +      -       -      -
   1057B  ASN*     2.8    19.7    +      -       -      +
   1067B  ARG*     3.6    23.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA1054 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1050B  LEU*     4.8    14.1    -      -       +      -
   1051B  THR*     2.8    22.6    +      -       +      +
   1053B  ASP*     1.3    70.2    -      -       -      +
   1055B  VAL*     1.3    62.8    +      -       -      +
   1057B  ASN*     3.4    12.0    +      -       -      +
   1058B  LEU*     3.0    33.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL1055 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    758B  PHE*     6.3     0.2    -      -       +      -
   1027B  ILE*     5.7     4.9    -      -       +      +
   1030B  LEU*     3.5    32.5    -      -       +      -
   1031B  LEU*     4.5    20.9    -      -       +      +
   1034B  VAL*     4.1    14.7    -      -       +      +
   1050B  LEU*     3.9    27.1    -      -       +      -
   1051B  THR*     3.9    17.7    +      -       -      +
   1052B  VAL*     3.7     9.1    +      -       -      +
   1053B  ASP      2.8     0.6    +      -       -      -
   1054B  ALA*     1.3    77.9    -      -       -      +
   1056B  SER*     1.3    63.3    +      -       -      +
   1058B  LEU*     3.2     8.8    +      -       +      +
   1059B  LEU*     2.9    20.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER1056 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1030B  LEU*     4.4     6.8    -      -       -      +
   1052B  VAL*     2.8    20.4    +      -       -      +
   1053B  ASP*     2.3    25.3    +      -       -      -
   1055B  VAL*     1.3    71.5    -      -       -      +
   1057B  ASN*     1.3    62.1    +      -       -      -
   1059B  LEU*     3.1     8.4    +      -       -      +
   1060B  ARG      2.9    18.0    +      -       -      -
   1066B  SER*     3.1    27.0    +      -       -      -
   1067B  ARG*     2.8    36.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASN1057 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1053B  ASP*     2.8    20.5    +      -       -      +
   1054B  ALA*     3.8    12.9    -      -       -      +
   1056B  SER*     1.3    74.2    -      -       -      +
   1058B  LEU*     1.3    71.1    +      -       +      +
   1060B  ARG*     2.9    27.0    +      -       -      +
   1061B  ASP*     3.0    24.9    +      -       -      +
   1066B  SER*     5.4     1.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU1058 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1034B  VAL*     4.4    15.0    -      -       +      -
   1038B  ARG*     3.3    37.7    +      -       -      +
   1040B  TYR*     4.5    11.4    -      -       -      +
   1050B  LEU*     6.5     1.1    -      -       +      -
   1054B  ALA*     3.0    21.5    +      -       +      +
   1055B  VAL*     3.7     7.6    -      -       +      +
   1057B  ASN*     1.3    78.8    -      -       +      +
   1059B  LEU*     1.3    60.2    +      -       -      +
   1061B  ASP*     3.7     9.8    +      -       -      +
   1062B  ASN*     2.8    24.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1059 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1030B  LEU*     4.0    26.5    -      -       +      -
   1033B  LYS*     4.6    17.0    -      -       +      +
   1034B  VAL*     3.9    20.8    -      -       +      +
   1037B  ILE*     4.5    18.8    -      -       +      -
   1055B  VAL      2.9    13.3    +      -       -      +
   1056B  SER*     3.3    10.8    -      -       -      +
   1057B  ASN      2.9     0.4    -      -       -      -
   1058B  LEU*     1.3    77.8    -      -       -      +
   1060B  ARG*     1.3    64.5    +      -       -      +
   1062B  ASN*     3.0    18.5    +      -       -      +
   1063B  GLY      3.8     1.9    +      -       -      -
   1064B  TYR*     3.8    23.3    +      -       +      +
   1065B  GLN      3.5    23.8    -      -       -      +
   1066B  SER*     4.3     4.9    -      -       -      +
   1068B  GLY*     4.3     4.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG1060 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1056B  SER      2.9     6.0    +      -       -      +
   1057B  ASN*     2.9    18.0    +      -       -      +
   1059B  LEU*     1.3    77.3    -      -       -      +
   1061B  ASP*     1.3    64.7    +      -       -      +
   1063B  GLY*     2.8    20.6    +      -       -      -
   1064B  TYR      3.2    21.3    -      -       -      +
   1066B  SER*     3.5    32.4    +      -       -      +
    199C  LYS      5.8     2.4    +      -       -      -
    200C  GLU*     4.4    25.1    -      -       -      +
    202C  PRO*     5.0     4.5    -      -       +      -
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Residues in contact with ASP1061 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1038B  ARG*     4.2    11.2    +      -       -      +
   1057B  ASN*     3.0    25.0    +      -       -      +
   1058B  LEU*     3.8    16.0    -      -       -      +
   1059B  LEU      3.2     0.2    -      -       -      -
   1060B  ARG*     1.3    84.4    +      -       -      +
   1062B  ASN*     1.3    58.8    +      -       -      +
   1063B  GLY      3.2     2.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASN1062 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1034B  VAL*     5.5     2.3    -      -       -      +
   1037B  ILE*     3.7    33.5    -      -       +      +
   1038B  ARG*     3.8    30.4    -      -       -      +
   1058B  LEU      2.8    21.5    -      -       -      +
   1059B  LEU*     3.0    10.7    +      -       -      +
   1061B  ASP*     1.3    79.2    +      -       -      +
   1063B  GLY*     1.3    63.2    +      -       -      +
   1064B  TYR*     3.7    14.0    -      -       +      -
----------------------------------------------------------
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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