Contacts of the helix formed by residues 1825 - 1836 (chain r) in PDB entry 6FF7


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 ASN1825 (chain r).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1734r  ASP*     5.5     7.2    -      -       -      -
   1819r  ALA*     5.1     0.3    -      -       -      +
   1824r  ILE*     1.3    76.4    -      -       -      +
   1826r  TYR*     1.3    64.5    +      -       -      +
   1827r  THR*     4.6     3.1    -      -       -      +
   1828r  THR*     3.2    22.7    -      -       -      +
   1829r  ILE*     3.5     5.5    +      -       -      +
   1853r  ALA*     3.9    28.0    -      -       +      -
   1854r  GLU*     5.4     4.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR1826 (chain r). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1733r  HIS*     5.2    10.3    -      -       +      -
   1734r  ASP*     5.2    18.2    -      -       +      +
   1737r  ASN*     5.5     8.5    -      -       +      -
   1799r  SER*     5.7     5.9    -      -       -      -
   1801r  CYS*     5.5    10.3    -      -       +      -
   1819r  ALA*     4.9    13.0    -      -       +      -
   1824r  ILE      3.5     3.8    +      -       -      +
   1825r  ASN*     1.3    70.6    -      -       -      +
   1827r  THR*     1.3    64.1    +      -       -      +
   1829r  ILE*     3.2     4.6    +      -       -      +
   1830r  GLU*     3.0    21.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR1827 (chain r). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1825r  ASN*     3.4     4.4    -      -       -      +
   1826r  TYR*     1.3    74.5    -      -       -      +
   1828r  THR*     1.3    66.3    +      -       -      +
   1830r  GLU*     3.2     8.3    +      -       -      +
   1831r  LEU*     2.9    24.9    +      -       -      +
   1853r  ALA*     5.4     5.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR1828 (chain r). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1824r  ILE*     5.1     5.4    -      -       -      -
   1825r  ASN*     3.2    25.6    +      -       -      +
   1826r  TYR      3.1     0.2    -      -       -      -
   1827r  THR*     1.3    81.1    -      -       -      +
   1829r  ILE*     1.3    60.3    +      -       -      +
   1831r  LEU*     3.0     7.8    +      -       -      +
   1832r  PHE*     2.9    24.1    +      -       -      +
   1852r  ALA*     4.6    11.6    -      -       -      +
   1853r  ALA*     4.0    25.4    -      -       -      +
   1854r  GLU      5.6     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE1829 (chain r). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1815r  LEU*     5.5    14.7    -      -       +      +
   1818r  ILE*     5.8     4.0    -      -       +      -
   1819r  ALA*     5.1    16.8    -      -       +      +
   1824r  ILE*     5.5     4.5    -      -       +      -
   1825r  ASN      3.5     5.9    +      -       -      +
   1826r  TYR      3.2     6.6    +      -       -      +
   1828r  THR*     1.3    76.5    -      -       -      +
   1830r  GLU*     1.3    60.8    +      -       -      +
   1832r  PHE*     3.4    12.9    -      -       +      +
   1833r  SER*     2.9    24.4    +      -       -      -
   1925r  ALA*     6.0     6.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU1830 (chain r). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1799r  SER*     4.5    26.7    -      -       -      +
   1815r  LEU*     6.5     0.4    -      -       -      -
   1826r  TYR      3.0    12.5    +      -       -      +
   1827r  THR*     3.6    11.9    -      -       -      +
   1828r  THR      3.1     0.2    -      -       -      -
   1829r  ILE*     1.3    76.4    -      -       -      +
   1831r  LEU*     1.3    58.6    +      -       -      +
   1833r  SER*     2.8    26.9    +      -       -      -
   1834r  MET*     2.9    14.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1831 (chain r). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1827r  THR      2.9    12.5    +      -       -      +
   1828r  THR*     3.1    12.6    -      -       -      +
   1830r  GLU*     1.3    75.6    -      -       -      +
   1832r  PHE*     1.3    63.1    +      -       -      +
   1834r  MET*     3.2     6.2    +      -       -      +
   1835r  SER*     2.9    27.9    +      -       -      -
   1848r  ILE      6.1     0.7    -      -       -      +
   1851r  ASN*     5.8    10.8    -      -       +      +
   1852r  ALA*     6.4     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE1832 (chain r). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1828r  THR      2.9     7.5    +      -       -      +
   1829r  ILE*     3.4    22.7    -      -       +      +
   1831r  LEU*     1.3    76.1    -      -       -      +
   1833r  SER*     1.3    63.0    +      -       -      +
   1835r  SER*     3.1     4.4    +      -       -      -
   1836r  LEU*     3.0    32.2    +      -       +      +
   1848r  ILE*     5.9     5.2    -      -       -      -
   1926r  CYS*     6.1     4.7    -      -       +      -
   1929r  VAL*     5.3    12.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER1833 (chain r). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1799r  SER      5.8     2.7    -      -       -      -
   1815r  LEU*     6.1     5.2    -      -       -      -
   1829r  ILE      2.9    14.8    +      -       -      -
   1830r  GLU*     2.8    21.7    +      -       -      -
   1832r  PHE*     1.3    72.7    -      -       -      +
   1834r  MET*     1.3    56.6    +      -       -      -
   1835r  SER      3.6     0.2    +      -       -      -
   1836r  LEU      4.3     8.5    -      -       -      +
   1929r  VAL*     6.0     4.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with MET1834 (chain r). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1830r  GLU      2.9    12.4    +      -       -      +
   1831r  LEU*     4.2     4.0    -      -       -      +
   1833r  SER*     1.3    76.5    -      -       -      +
   1835r  SER*     1.3    60.4    +      -       -      +
   1836r  LEU      4.9     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER1835 (chain r). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1831r  LEU*     2.9    19.0    +      -       -      -
   1832r  PHE*     3.8     3.6    -      -       -      -
   1834r  MET*     1.3    79.3    -      -       -      +
   1836r  LEU*     1.3    69.4    +      -       -      +
   1837r  ASN*     3.2     8.1    +      -       -      +
   1840r  THR*     5.5     0.9    -      -       -      -
   1848r  ILE*     4.5    18.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU1836 (chain r). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1832r  PHE*     3.0    15.9    +      -       +      +
   1833r  SER      4.3     9.7    -      -       -      +
   1834r  MET      4.9     0.5    -      -       -      -
   1835r  SER*     1.3    78.0    -      -       -      +
   1837r  ASN*     1.3    61.4    +      -       -      +
   1840r  THR*     4.6    11.0    -      -       -      -
   1848r  ILE*     5.5     4.6    -      -       +      +
   1926r  CYS*     6.4     1.8    -      -       +      -
   1929r  VAL*     5.8     7.9    -      -       +      -
   1930r  LEU*     5.8     9.2    -      -       +      -
----------------------------------------------------------
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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