Contacts of the helix formed by residues 1856 - 1868 (chain H) in PDB entry 6X34


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 GLY1856 (chain H).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1809H  ARG*     4.6     5.2    -      -       -      +
   1854H  ILE      3.3     6.3    +      -       -      -
   1855H  PHE*     1.3    75.3    -      -       -      +
   1857H  ASP*     1.3    67.7    +      -       -      -
   1858H  GLU      3.4     2.9    -      -       -      -
   1859H  ASP*     3.6     8.5    -      -       -      +
   1860H  VAL*     3.1    23.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP1857 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1765H  GLY      5.6     0.9    -      -       -      -
   1766H  VAL*     5.6     9.0    -      -       +      +
   1856H  GLY*     1.3    71.9    -      -       -      -
   1858H  GLU*     1.3    59.1    +      -       -      +
   1860H  VAL*     3.2    12.0    -      -       -      +
   1861H  LYS*     2.9    43.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU1858 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1856H  GLY*     3.4     0.4    -      -       -      -
   1857H  ASP*     1.3    79.8    -      -       -      +
   1859H  ASP*     1.3    58.1    +      -       -      +
   1861H  LYS*     3.6    10.8    -      -       -      +
   1862H  GLN*     2.9    30.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP1859 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1809H  ARG*     4.1    13.9    -      -       -      +
   1813H  LEU*     4.7    15.3    -      -       +      +
   1855H  PHE*     3.6    24.0    -      -       +      -
   1856H  GLY*     3.4    24.4    +      -       -      +
   1857H  ASP      3.2     0.4    -      -       -      -
   1858H  GLU*     1.3    79.6    -      -       -      +
   1860H  VAL*     1.3    57.8    +      -       -      +
   1862H  GLN*     3.3     6.7    +      -       -      +
   1863H  ILE*     2.9    33.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL1860 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1764H  PRO      4.8     7.1    -      -       -      +
   1765H  GLY*     3.5    27.6    -      -       -      +
   1766H  VAL*     4.0    14.8    -      -       +      -
   1850H  LEU*     3.9    27.1    -      -       +      -
   1855H  PHE*     3.9    11.9    -      -       +      +
   1856H  GLY      3.1    16.5    +      -       -      +
   1857H  ASP*     3.2    15.0    -      -       -      +
   1859H  ASP*     1.3    75.3    -      -       -      +
   1861H  LYS*     1.3    61.1    +      -       -      +
   1863H  ILE*     3.6     9.2    -      -       -      +
   1864H  LEU*     2.9    30.3    +      -       -      +
   1947H  PHE*     6.3     3.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS1861 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1763H  LEU*     3.9    26.6    -      -       +      +
   1766H  VAL*     4.2    21.7    -      -       +      +
   1857H  ASP*     2.9    32.2    +      -       -      +
   1858H  GLU*     3.6     9.0    -      -       -      +
   1860H  VAL*     1.3    77.6    -      -       -      +
   1862H  GLN*     1.3    57.1    +      -       -      +
   1864H  LEU*     3.3     6.1    +      -       -      +
   1865H  LYS*     2.9    29.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN1862 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1813H  LEU*     5.1    13.7    -      -       +      -
   1858H  GLU      2.9    17.6    +      -       -      +
   1859H  ASP*     3.7     6.3    -      -       -      +
   1861H  LYS*     1.3    76.3    -      -       -      +
   1863H  ILE*     1.3    58.0    +      -       -      +
   1865H  LYS*     3.3     7.1    +      -       -      +
   1866H  MET*     2.9    30.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE1863 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1813H  LEU*     4.6    13.7    -      -       +      -
   1846H  VAL*     4.1    17.0    -      -       +      -
   1850H  LEU*     4.2    12.6    -      -       +      -
   1855H  PHE*     3.6    38.6    -      -       +      -
   1859H  ASP      2.9    22.3    +      -       -      +
   1860H  VAL*     3.6     7.4    -      -       -      +
   1862H  GLN*     1.3    77.6    -      -       -      +
   1864H  LEU*     1.3    58.3    +      -       -      +
   1866H  MET*     3.2     8.4    +      -       -      +
   1867H  ILE*     2.9    43.7    +      -       +      +
   1943H  LEU*     5.8     3.6    -      -       +      -
   1947H  PHE*     4.0    25.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU1864 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1763H  LEU*     5.6     7.2    -      -       +      -
   1764H  PRO*     5.3    17.7    -      -       +      +
   1860H  VAL      2.9    17.8    +      -       -      +
   1861H  LYS*     3.3     6.0    +      -       -      +
   1863H  ILE*     1.3    77.0    -      -       -      +
   1865H  LYS*     1.3    60.4    +      -       -      +
   1867H  ILE*     4.0     6.5    -      -       -      +
   1868H  GLU      2.9    26.2    +      -       -      +
   1871H  VAL*     3.8    25.4    -      -       +      +
   1947H  PHE*     5.9     5.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS1865 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1861H  LYS      2.9    16.8    +      -       -      +
   1862H  GLN*     3.7     7.9    -      -       -      +
   1864H  LEU*     1.3    77.7    -      -       -      +
   1866H  MET*     1.3    62.2    +      -       -      +
   1868H  GLU      3.4    17.2    -      -       -      +
   1869H  PRO*     4.1     6.7    -      -       +      +
   1871H  VAL      5.0     2.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with MET1866 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1816H  LEU*     3.7    45.8    -      -       +      +
   1817H  GLY*     4.8     1.6    -      -       -      -
   1819H  ALA*     5.9     1.1    -      -       +      -
   1820H  VAL*     4.1    28.2    -      -       +      +
   1843H  LEU*     5.4     8.3    -      -       +      -
   1862H  GLN      2.9    17.7    +      -       -      +
   1863H  ILE*     3.7     7.9    -      -       -      +
   1865H  LYS*     1.3    74.9    -      -       -      +
   1867H  ILE*     1.3    73.1    +      -       +      +
   1868H  GLU*     4.6     0.2    -      -       -      -
   1925H  GLU      4.8     6.6    -      -       -      +
   1926H  GLY*     5.7     0.2    -      -       -      -
   1927H  LEU*     4.4    32.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE1867 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1843H  LEU*     6.1     0.9    -      -       +      -
   1863H  ILE*     2.9    33.2    +      -       +      +
   1864H  LEU*     4.0     6.7    -      -       -      +
   1865H  LYS      3.4     0.4    -      -       -      -
   1866H  MET*     1.3    87.0    -      -       +      +
   1868H  GLU*     1.3    65.0    +      -       +      +
   1869H  PRO*     4.9     0.2    -      -       -      +
   1871H  VAL*     6.0     2.7    -      -       +      -
   1926H  GLY*     5.5     1.0    -      -       -      -
   1927H  LEU*     4.5    13.8    +      -       +      -
   1928H  LEU*     3.4    35.0    +      -       +      +
   1929H  GLN*     5.2     1.9    -      -       -      +
   1940H  MET*     3.6    30.3    -      -       +      -
   1943H  LEU*     4.8     8.7    -      -       +      -
   1944H  LEU*     5.4    13.0    -      -       +      -
   1947H  PHE*     4.8    13.5    -      -       +      -
   2098H  LEU*     6.0     4.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU1868 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1864H  LEU      2.9    17.3    +      -       -      +
   1865H  LYS*     3.4     8.2    -      -       -      +
   1866H  MET      3.4     0.4    -      -       -      -
   1867H  ILE*     1.3    85.3    -      -       +      +
   1869H  PRO*     1.3    74.6    -      -       +      +
   1870H  GLU*     3.5     3.3    +      -       +      +
   1871H  VAL*     3.5    27.3    +      -       +      +
   1928H  LEU*     5.8     2.7    -      -       +      -
   1929H  GLN*     6.1     0.9    -      -       -      +
   2098H  LEU*     5.3    11.4    -      -       +      -
----------------------------------------------------------
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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