Contacts of the helix formed by residues 1687 - 1709 (chain A) in PDB entry 2HC2


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 GLN1687 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1683A  ILE*     4.2     5.8    -      -       +      -
   1684A  LYS*     2.9    44.6    +      -       +      +
   1686A  ASN*     1.3    84.4    -      -       +      +
   1688A  PHE*     1.3    58.1    +      -       -      +
   1689A  GLU      3.5     2.0    -      -       -      -
   1690A  GLY*     3.4     4.5    +      -       -      +
   1691A  HIS*     2.9    29.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE1688 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1683A  ILE*     3.7    36.8    -      -       +      -
   1684A  LYS      3.2     5.6    +      -       -      +
   1685A  ILE*     3.2    18.3    +      -       -      +
   1686A  ASN      3.5     0.4    -      -       -      -
   1687A  GLN*     1.3    76.1    -      -       -      +
   1689A  GLU*     1.3    70.5    +      -       -      +
   1691A  HIS*     3.2     2.2    +      +       -      +
   1692A  PHE*     2.8    30.8    +      -       +      +
   1930A  VAL*     3.8    16.4    -      -       +      -
   1932A  ILE*     3.7    21.8    -      -       +      -
   1957A  HIS*     3.4    46.7    -      +       -      -
   1960A  VAL*     3.6    21.8    -      -       +      -
   1961A  ARG*     3.7    12.3    -      -       -      -
   1964A  LEU*     3.9    10.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU1689 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1685A  ILE      4.7     0.8    +      -       -      -
   1686A  ASN      5.3     2.4    -      -       -      +
   1687A  GLN      3.5     0.2    -      -       -      -
   1688A  PHE*     1.3    83.4    -      -       -      +
   1690A  GLY*     1.3    57.9    +      -       -      +
   1692A  PHE*     3.4     4.5    +      -       -      +
   1693A  MET*     3.0    51.3    +      -       -      +
   1961A  ARG*     3.7    16.5    -      -       +      +
   1964A  LEU*     5.4     2.2    -      -       +      +
   1965A  ARG*     2.9    55.3    +      -       -      +
   1968A  LYS*     5.0    14.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY1690 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1687A  GLN*     3.4     6.8    +      -       -      +
   1688A  PHE      3.2     0.4    -      -       -      -
   1689A  GLU*     1.3    76.0    -      -       -      +
   1691A  HIS*     1.3    60.0    +      -       -      +
   1693A  MET*     3.7    13.4    -      -       -      +
   1694A  LYS*     2.9    30.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS1691 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1681A  CYS*     6.0     2.9    -      -       +      +
   1683A  ILE*     2.8    48.3    -      -       +      +
   1687A  GLN*     2.9    20.5    +      -       +      +
   1688A  PHE*     3.5    10.5    -      +       -      +
   1690A  GLY*     1.3    75.7    -      -       -      +
   1692A  PHE*     1.3    66.0    +      -       -      +
   1694A  LYS*     3.2    26.1    +      -       -      +
   1695A  LEU*     2.9    58.0    +      -       +      +
   1706A  GLU*     4.3    12.2    +      -       -      -
   1957A  HIS*     4.4     4.1    +      +       -      -
----------------------------------------------------------
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Residues in contact with PHE1692 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1688A  PHE*     2.8    32.2    +      -       +      +
   1689A  GLU*     3.8     3.6    -      -       -      +
   1691A  HIS*     1.3    77.5    -      -       -      +
   1693A  MET*     1.3    64.8    +      -       +      +
   1695A  LEU*     3.0     5.6    +      -       +      +
   1696A  GLN*     2.9    59.8    +      -       +      +
   1703A  LEU*     3.8    19.5    -      -       +      -
   1954A  VAL*     3.9     7.4    -      -       +      -
   1957A  HIS*     3.4    40.2    -      +       +      -
   1958A  GLN*     3.7    34.8    -      -       +      -
   1961A  ARG*     3.9    25.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET1693 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1689A  GLU*     3.0    41.9    +      -       -      +
   1690A  GLY*     3.7    11.9    -      -       -      +
   1691A  HIS      3.3     0.2    -      -       -      -
   1692A  PHE*     1.3    75.5    -      -       +      +
   1694A  LYS*     1.3    56.8    +      -       -      +
   1696A  GLN*     3.1    14.9    +      -       -      +
   1697A  ALA*     2.9    29.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS1694 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1690A  GLY      2.9    17.7    +      -       -      +
   1691A  HIS*     3.2    28.5    +      -       -      +
   1693A  MET*     1.3    70.9    -      -       -      +
   1695A  LEU*     1.3    68.2    +      -       -      +
   1696A  GLN      3.5     0.2    +      -       -      -
   1697A  ALA*     3.5    19.9    +      -       +      +
   1702A  LEU*     4.0    32.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU1695 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1691A  HIS*     2.9    53.2    +      -       +      +
   1692A  PHE*     3.0     8.0    +      -       -      +
   1694A  LYS*     1.3    81.4    -      -       -      +
   1696A  GLN*     1.3    61.1    +      -       -      +
   1697A  ALA      3.6     0.3    +      -       -      -
   1700A  ASN*     3.5     8.0    -      -       -      -
   1702A  LEU*     3.7    32.2    +      -       +      +
   1703A  LEU*     3.0    47.4    +      -       +      +
   1706A  GLU*     4.1    18.8    -      -       +      +
   1953A  TYR*     5.5     0.2    -      -       +      -
   1957A  HIS*     3.9    22.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN1696 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1692A  PHE*     2.9    61.9    +      -       +      +
   1693A  MET*     3.1    14.9    +      -       -      +
   1695A  LEU*     1.3    73.4    -      -       -      +
   1697A  ALA*     1.3    68.7    +      -       -      +
   1698A  ASP      3.5     0.7    +      -       -      -
   1699A  SER*     3.6     2.9    +      -       -      -
   1700A  ASN*     3.0    33.2    +      -       -      +
   1703A  LEU*     4.7     2.0    -      -       +      -
   1954A  VAL*     4.7     5.2    -      -       +      +
   1958A  GLN*     4.7     9.7    -      -       -      +
   1961A  ARG*     4.7     7.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA1697 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1693A  MET      2.9    11.9    +      -       -      +
   1694A  LYS*     3.6    17.7    -      -       +      +
   1695A  LEU      3.3     2.4    -      -       -      +
   1696A  GLN*     1.3    80.5    -      -       -      +
   1698A  ASP*     1.3    70.9    +      -       +      +
   1701A  TYR*     3.2    14.4    +      -       -      +
   1702A  LEU*     4.6     0.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP1698 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1696A  GLN      3.5     0.2    +      -       -      -
   1697A  ALA*     1.3    78.4    -      -       +      +
   1699A  SER*     1.3    71.5    +      -       -      +
   1701A  TYR*     3.2    31.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER1699 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1696A  GLN      3.6     3.1    +      -       -      -
   1697A  ALA      3.4     0.6    -      -       -      -
   1698A  ASP*     1.3    80.5    +      -       -      +
   1700A  ASN*     1.3    70.2    +      -       -      +
   1701A  TYR*     3.4     0.9    +      -       -      -
   1704A  SER*     4.9     1.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASN1700 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1695A  LEU      3.5    11.2    -      -       -      -
   1696A  GLN*     3.0    40.9    +      -       -      +
   1699A  SER*     1.3    79.2    -      -       -      +
   1701A  TYR*     1.3    66.6    +      -       -      +
   1702A  LEU      3.4     1.8    -      -       -      -
   1703A  LEU*     4.1     8.2    -      -       +      +
   1704A  SER*     2.9    30.8    +      -       -      +
   1950A  GLU*     2.9    21.3    +      -       -      +
   1954A  VAL*     3.9    19.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR1701 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1697A  ALA      3.2    11.1    +      -       -      +
   1698A  ASP*     3.2    32.5    +      -       +      +
   1699A  SER      3.3     1.5    -      -       -      -
   1700A  ASN*     1.3    80.0    -      -       -      +
   1702A  LEU*     1.3    80.7    +      -       +      +
   1704A  SER*     3.9     3.8    -      -       -      -
   1705A  LYS*     3.3    50.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU1702 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1694A  LYS*     4.0    42.4    -      -       +      +
   1695A  LEU*     3.7    21.8    +      -       +      +
   1697A  ALA      4.6     0.8    +      -       -      +
   1701A  TYR*     1.3   104.0    -      -       +      +
   1703A  LEU*     1.3    66.7    +      -       -      +
   1705A  LYS*     3.2    21.4    +      -       +      +
   1706A  GLU*     2.9    24.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1703 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1692A  PHE*     3.8    26.2    -      -       +      -
   1695A  LEU*     3.0    44.1    +      -       +      +
   1696A  GLN*     4.7     0.7    -      -       +      -
   1700A  ASN*     3.3    14.8    +      -       -      +
   1702A  LEU*     1.3    76.2    -      -       -      +
   1704A  SER*     1.3    56.9    +      -       -      +
   1706A  GLU*     3.2     4.9    +      -       -      +
   1707A  TYR*     2.8    25.9    +      -       +      +
   1950A  GLU*     3.5    38.1    -      -       +      +
   1953A  TYR*     4.2    17.7    -      -       +      -
   1954A  VAL*     3.6    27.1    -      -       +      -
   1957A  HIS*     5.1     2.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER1704 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1699A  SER      4.9     1.0    +      -       -      -
   1700A  ASN*     2.9    23.1    +      -       -      +
   1701A  TYR*     3.9     4.0    -      -       -      -
   1703A  LEU*     1.3    76.9    -      -       -      +
   1705A  LYS*     1.3    56.8    +      -       -      +
   1707A  TYR*     3.8     2.0    -      -       -      +
   1708A  GLU*     2.9    46.6    +      -       -      +
   1950A  GLU*     2.7    33.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS1705 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1701A  TYR*     3.3    46.6    +      -       +      +
   1702A  LEU*     3.2    26.8    +      -       +      +
   1704A  SER*     1.3    77.6    -      -       -      +
   1706A  GLU*     1.3    62.6    +      -       -      +
   1708A  GLU*     3.4     9.3    +      -       -      +
   1709A  GLU*     3.2    31.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU1706 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1678A  LYS*     5.6     0.9    +      -       -      -
   1681A  CYS*     3.9    18.5    -      -       -      +
   1691A  HIS*     4.3    15.9    +      -       -      -
   1695A  LEU*     4.1    19.9    -      -       +      +
   1702A  LEU      2.9    16.5    +      -       -      +
   1703A  LEU*     3.6     5.6    -      -       -      +
   1705A  LYS*     1.3    76.0    -      -       -      +
   1707A  TYR*     1.3    64.8    +      -       -      +
   1709A  GLU*     3.1    28.2    +      -       -      +
   1710A  LEU*     3.8     0.3    +      -       -      +
   1933A  TYR*     3.5    33.5    -      -       +      +
   1953A  TYR*     2.6    28.2    +      -       +      +
   1957A  HIS*     4.2     4.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR1707 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1703A  LEU      2.8    16.8    +      -       -      +
   1704A  SER*     3.8     6.5    -      -       -      +
   1706A  GLU*     1.3    77.4    -      -       -      +
   1708A  GLU*     1.3    67.7    +      -       +      +
   1710A  LEU*     3.0    25.9    +      -       +      +
   1711A  LYS*     3.9     2.4    +      -       -      -
   1940A  ARG*     3.2    28.0    +      -       -      -
   1947A  VAL*     4.7     3.1    -      -       +      -
   1948A  GLN      3.1    33.1    +      -       -      -
   1949A  THR*     3.2    17.3    +      -       -      -
   1950A  GLU*     3.6    29.6    -      -       +      -
   1953A  TYR*     3.6    41.6    -      +       +      -
----------------------------------------------------------
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Residues in contact with GLU1708 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1704A  SER*     2.9    31.5    +      -       -      +
   1705A  LYS*     3.8     8.6    -      -       -      +
   1707A  TYR*     1.3    84.3    -      -       +      +
   1709A  GLU*     1.3    62.5    +      -       +      +
   1711A  LYS*     3.0    32.5    +      -       +      +
   1950A  GLU*     6.2     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU1709 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1677A  ARG*     3.3    35.5    +      -       +      +
   1678A  LYS*     4.1    30.8    +      -       -      +
   1705A  LYS*     3.2    20.9    +      -       -      +
   1706A  GLU*     3.1    18.6    +      -       -      +
   1708A  GLU*     1.3    76.6    -      -       -      +
   1710A  LEU*     1.3    57.5    +      -       -      +
   1711A  LYS      3.3     0.4    +      -       -      -
   1712A  ASP      4.8     0.5    +      -       -      -
   1933A  TYR*     3.6    19.8    +      -       -      +
----------------------------------------------------------
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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