Contacts of the helix formed by residues 596 - 607 (chain C) in PDB entry 2HDX


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 SER 596 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    585C  GLY      3.4    14.8    -      -       -      -
    587C  CYS*     3.8     7.2    -      -       -      +
    594C  PHE*     3.4     7.0    +      -       -      +
    595C  GLN*     1.3    79.6    -      -       -      +
    597C  ILE*     1.3    64.6    +      -       -      +
    598C  PHE*     3.2    32.3    -      -       -      +
    599C  ASP*     2.6    35.3    +      -       -      +
    600C  MET*     3.1    10.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 597 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    522C  LEU*     3.5    37.5    -      -       +      -
    527C  TRP*     4.1    15.7    -      -       +      -
    554C  VAL*     4.3    13.5    -      -       +      -
    564C  CYS*     4.3    12.8    -      -       +      -
    579C  LEU*     4.4     2.7    -      -       +      -
    581C  LEU*     3.5    35.4    -      -       +      -
    585C  GLY      4.3     1.4    +      -       -      +
    587C  CYS*     3.9     9.3    -      -       +      +
    596C  SER*     1.3    74.1    -      -       -      +
    598C  PHE*     1.3    59.5    +      -       +      +
    600C  MET*     3.3    20.9    +      -       +      +
    601C  LEU*     2.8    46.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 598 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    520C  GLN      5.5     2.2    -      -       -      -
    522C  LEU*     3.8    14.1    -      -       +      -
    525C  TYR*     3.4    47.3    -      +       -      -
    527C  TRP*     3.4    30.3    -      +       -      -
    596C  SER*     3.2    27.8    -      -       -      +
    597C  ILE*     1.3    79.7    -      -       -      +
    599C  ASP*     1.3    56.9    +      -       -      +
    601C  LEU*     3.1    10.1    +      -       -      +
    602C  GLU*     2.8    43.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 599 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    594C  PHE*     4.3     7.9    -      -       +      -
    595C  GLN*     3.3    23.0    -      -       -      +
    596C  SER*     2.6    36.2    +      -       -      +
    598C  PHE*     1.3    73.6    -      -       -      +
    600C  MET*     1.3    60.4    +      -       -      +
    602C  GLU*     3.1    17.1    +      -       -      +
    603C  HIS*     2.8    33.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 600 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    566C  LEU*     4.4     8.5    -      -       +      -
    579C  LEU*     3.7    29.8    -      -       +      -
    587C  CYS*     4.3     4.9    -      -       -      -
    589C  VAL*     3.9    11.7    -      -       +      -
    594C  PHE*     3.4    45.4    -      -       +      -
    596C  SER      3.1     8.7    +      -       -      +
    597C  ILE*     3.6    34.3    -      -       +      +
    599C  ASP*     1.3    78.9    -      -       -      +
    601C  LEU*     1.3    76.8    +      -       +      +
    603C  HIS*     3.5     1.7    +      -       -      +
    604C  PHE*     3.1    42.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 601 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    527C  TRP*     3.5    50.9    -      -       +      +
    552C  PHE*     3.9    16.6    -      -       +      -
    554C  VAL*     4.4     4.3    -      -       +      -
    566C  LEU*     4.2     8.1    -      -       +      -
    597C  ILE*     2.8    26.0    +      -       +      +
    598C  PHE*     3.3    10.3    -      -       -      +
    600C  MET*     1.3    90.0    -      -       +      +
    602C  GLU*     1.3    66.6    +      -       +      +
    604C  PHE*     3.2    11.8    +      -       -      +
    605C  ARG*     3.3    18.0    +      -       -      +
    621C  LEU*     3.5    26.0    -      -       +      +
    531E  MET*     4.6    13.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 602 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    598C  PHE*     2.8    35.0    +      -       +      +
    599C  ASP*     3.6    16.7    -      -       -      +
    601C  LEU*     1.3    72.2    -      -       +      +
    603C  HIS*     1.3    65.0    +      -       -      +
    605C  ARG*     2.9    31.0    +      -       -      +
    606C  VAL*     3.5    10.8    +      -       -      +
    531E  MET*     6.0     3.6    -      -       +      -
    536E  LYS*     5.8     0.2    +      -       -      -
    558E  GLU*     5.5     7.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 603 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    592C  LEU*     5.1     8.0    -      -       +      +
    594C  PHE*     3.7    30.4    -      +       +      -
    599C  ASP      2.8    20.6    +      -       -      +
    600C  MET      3.8     1.3    -      -       -      +
    602C  GLU*     1.3    72.7    -      -       -      +
    604C  PHE*     1.3    84.4    +      +       -      +
    606C  VAL*     5.2     2.0    -      -       -      -
    607C  HIS*     2.9    61.8    +      +       +      +
    610C  PRO*     6.1     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 604 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    566C  LEU*     4.7     3.4    -      -       +      -
    577C  LEU*     4.3    17.0    -      -       +      -
    589C  VAL*     4.9     2.7    -      -       +      -
    592C  LEU*     3.8    24.2    -      -       +      -
    594C  PHE*     4.5     2.2    -      +       -      -
    600C  MET*     3.1    46.6    +      -       +      +
    601C  LEU      3.7     2.5    -      -       -      +
    602C  GLU      3.1     1.4    -      -       -      -
    603C  HIS*     1.3   100.7    -      +       -      +
    605C  ARG*     1.3    60.6    +      -       -      +
    607C  HIS      3.3    18.5    -      -       -      +
    608C  PRO      4.4     0.7    -      -       -      -
    609C  ILE*     4.0    22.4    -      -       +      +
    610C  PRO*     3.9    24.5    -      -       +      -
    620C  VAL*     3.4     8.0    -      -       -      +
    621C  LEU*     2.8    40.9    +      -       +      -
    816I  LEU*     4.8     3.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 605 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    552C  PHE*     3.8    11.4    -      -       -      -
    601C  LEU      3.4    14.6    -      -       -      +
    602C  GLU*     2.9    15.7    +      -       -      +
    604C  PHE*     1.3    79.3    -      -       -      +
    606C  VAL*     1.3    64.4    +      -       +      +
    620C  VAL*     3.3    22.9    -      -       -      +
    621C  LEU*     2.4    43.2    +      -       +      +
    622C  VAL*     2.6    31.3    +      -       -      +
    623C  SER*     4.3     0.2    -      -       -      +
    529E  HIS      5.4     0.6    +      -       -      -
    531E  MET*     2.6    67.1    +      -       -      +
    532E  LEU*     5.5     2.0    -      -       -      +
    533E  SER      6.0     0.4    -      -       -      +
    536E  LYS*     5.4     9.4    -      -       -      +
    558E  GLU*     6.1     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 606 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    602C  GLU      3.5    12.7    +      -       -      +
    603C  HIS*     4.1     1.8    -      -       -      +
    605C  ARG*     1.3    82.2    -      -       +      +
    607C  HIS*     1.3    84.4    +      -       +      +
    608C  PRO*     4.0     5.0    -      -       -      +
    620C  VAL*     4.3     3.1    -      -       -      +
    536E  LYS*     4.1    23.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 607 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    603C  HIS*     2.9    52.2    +      +       +      +
    604C  PHE*     3.3    26.2    -      -       -      +
    606C  VAL*     1.3   102.1    -      -       +      +
    608C  PRO*     1.3    74.6    -      -       +      +
    620C  VAL*     3.8     2.5    -      -       -      -
----------------------------------------------------------
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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