Contacts of the helix formed by residues 1680 - 1690 (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 PRO1680 (chain r).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1678r  ASP      3.3     5.0    -      -       -      +
   1679r  TYR*     1.3    70.8    -      -       -      +
   1681r  ILE*     1.3    65.4    +      -       -      +
   1682r  TYR*     3.3     3.1    -      -       +      +
   1683r  ASP*     3.0    29.2    +      -       +      +
   1684r  VAL      3.3     3.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE1681 (chain r). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1679r  TYR      3.4     4.9    +      -       -      -
   1680r  PRO*     1.3    70.3    -      -       -      +
   1682r  TYR*     1.3    57.4    +      -       -      +
   1684r  VAL*     3.1    10.7    +      -       -      +
   1685r  LEU*     2.9    26.7    +      -       -      +
   1717r  PHE*     6.3     2.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR1682 (chain r). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1458r  LEU*     6.1     7.0    -      -       +      -
   1680r  PRO*     3.3     3.4    -      -       +      +
   1681r  ILE*     1.3    75.3    -      -       -      +
   1683r  ASP*     1.3    65.8    +      -       -      +
   1685r  LEU*     3.3     8.6    +      -       -      +
   1686r  GLN*     2.9    22.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP1683 (chain r). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1651r  CYS*     5.1     7.2    -      -       +      +
   1679r  TYR*     5.0     6.1    -      -       +      -
   1680r  PRO*     3.0    24.4    +      -       +      +
   1682r  TYR*     1.3    78.2    -      -       -      +
   1684r  VAL*     1.3    58.1    +      -       -      +
   1686r  GLN*     2.8    25.2    +      -       -      +
   1687r  MET*     2.9    14.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL1684 (chain r). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1666r  THR*     6.4     1.1    -      -       -      -
   1679r  TYR*     5.1    11.6    -      -       +      +
   1680r  PRO      3.3     4.9    +      -       -      +
   1681r  ILE*     3.1    15.8    +      -       -      +
   1683r  ASP*     1.3    79.2    -      -       -      +
   1685r  LEU*     1.3    58.9    +      -       -      +
   1687r  MET*     3.4     7.8    +      -       -      +
   1688r  VAL*     2.9    28.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1685 (chain r). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1352r  THR*     4.9     7.7    -      -       -      -
   1681r  ILE      2.9    12.3    +      -       -      +
   1682r  TYR*     3.6    11.7    -      -       -      +
   1683r  ASP      3.2     0.4    -      -       -      -
   1684r  VAL*     1.3    76.4    -      -       -      +
   1686r  GLN*     1.3    58.2    +      -       -      +
   1688r  VAL*     3.3     7.9    +      -       -      +
   1689r  GLY*     2.9    24.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN1686 (chain r). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1352r  THR*     5.3     7.6    -      -       -      -
   1651r  CYS*     5.1    16.5    -      -       +      +
   1652r  TRP*     5.8     2.9    -      -       -      +
   1682r  TYR      2.9    12.4    +      -       -      +
   1683r  ASP*     2.8    13.7    +      -       -      +
   1685r  LEU*     1.3    73.4    -      -       -      +
   1687r  MET*     1.3    64.6    +      -       -      +
   1689r  GLY*     3.0     4.9    +      -       -      +
   1690r  HIS*     3.0    21.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET1687 (chain r). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1562r  PHE*     5.1    15.0    -      -       +      -
   1651r  CYS*     4.7    16.9    -      -       +      +
   1661r  VAL*     4.1    11.6    -      -       +      +
   1663r  ILE*     5.5     9.6    -      -       +      -
   1683r  ASP      2.9    11.5    +      -       -      +
   1684r  VAL*     3.6    11.0    -      -       -      +
   1686r  GLN*     1.3    74.3    -      -       -      +
   1688r  VAL*     1.3    63.2    +      -       -      +
   1690r  HIS*     3.1    23.6    +      -       -      +
   1691r  ALA      4.1     0.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL1688 (chain r). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1661r  VAL*     5.2     2.0    -      -       -      -
   1684r  VAL      2.9    14.4    +      -       -      +
   1685r  LEU*     3.5    12.1    -      -       -      +
   1687r  MET*     1.3    77.2    -      -       -      +
   1689r  GLY*     1.3    61.6    +      -       -      +
   1691r  ALA*     3.0    22.9    +      -       -      +
   1702r  CYS*     5.0    19.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY1689 (chain r). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1352r  THR*     3.9    26.9    -      -       -      +
   1353r  GLY*     4.9     3.8    -      -       -      -
   1685r  LEU      2.9    15.9    +      -       -      -
   1686r  GLN      3.0     5.5    +      -       -      -
   1688r  VAL*     1.3    75.7    -      -       -      +
   1690r  HIS*     1.3    58.4    +      -       -      +
   1691r  ALA      3.1     4.1    +      -       -      +
   1692r  ASN*     3.8    18.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with HIS1690 (chain r). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1560r  ILE*     5.8     6.3    -      -       +      +
   1651r  CYS      5.7     4.3    -      -       -      +
   1656r  VAL      5.7     2.0    -      -       -      +
   1657r  ALA*     3.9    10.6    -      -       -      +
   1658r  ALA*     3.2    25.3    +      -       -      +
   1661r  VAL*     5.1     4.0    -      -       +      -
   1686r  GLN      3.0     9.3    +      -       -      +
   1687r  MET*     3.2    17.5    -      -       -      +
   1688r  VAL      3.0     1.2    -      -       -      -
   1689r  GLY*     1.3    78.5    -      -       -      +
   1691r  ALA*     1.3    56.4    +      -       -      +
   1692r  ASN      3.5     1.8    +      -       -      -
----------------------------------------------------------
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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