Contacts of the helix formed by residues 673 - 689 (chain A) in PDB entry 3ZRH


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 HIS 673 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    358A  GLU*     3.6    30.1    +      -       +      +
    377A  ASP*     5.2     4.9    +      -       +      -
    379A  VAL*     4.6    20.4    -      -       +      +
    453A  TRP*     3.4    37.8    -      +       +      -
    671A  ARG      3.5     3.1    +      -       -      -
    672A  ASN*     1.3    71.7    -      -       -      +
    674A  PRO*     1.4    74.3    -      -       +      +
    675A  LEU*     3.3    29.6    +      -       +      +
    676A  VAL*     3.1    22.2    +      -       +      +
    677A  THR*     2.9    26.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 674 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    672A  ASN      3.4     7.6    -      -       -      +
    673A  HIS*     1.4    99.2    -      -       +      +
    675A  LEU*     1.3    60.7    +      -       +      +
    677A  THR*     3.6     8.8    -      -       -      +
    678A  GLN*     3.0    27.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 675 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    351A  LEU*     3.8    15.8    -      -       +      +
    354A  GLN*     3.6    52.7    -      -       +      +
    355A  ILE*     3.7    20.6    -      -       +      +
    358A  GLU*     3.5    24.5    -      -       +      +
    673A  HIS*     3.3    16.8    +      -       +      +
    674A  PRO*     1.3    79.4    -      -       +      +
    676A  VAL*     1.3    60.3    +      -       -      +
    678A  GLN*     3.3    11.2    +      -       -      +
    679A  MET*     3.0    29.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 676 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    355A  ILE*     4.2    10.5    -      -       +      -
    379A  VAL*     4.8     5.4    -      -       +      -
    381A  PHE*     4.6    11.7    -      -       +      -
    452A  THR      5.4     1.8    -      -       -      +
    453A  TRP*     3.5    47.8    -      -       +      +
    672A  ASN*     6.2     3.4    -      -       +      -
    673A  HIS*     3.1    27.7    +      -       +      +
    675A  LEU*     1.3    74.3    -      -       -      +
    677A  THR*     1.3    60.2    +      -       -      +
    679A  MET*     3.2     6.3    +      -       +      +
    680A  VAL*     2.9    42.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 677 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    672A  ASN*     3.7    22.7    +      -       -      +
    673A  HIS      2.9    14.3    +      -       -      -
    674A  PRO*     3.6    12.2    -      -       -      +
    676A  VAL*     1.3    77.6    -      -       -      +
    678A  GLN*     1.3    57.8    +      -       -      +
    680A  VAL*     3.3     5.7    +      -       -      +
    681A  GLU*     2.9    40.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 678 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    351A  LEU*     3.2    31.6    -      -       +      +
    354A  GLN*     5.1     3.0    -      -       -      +
    674A  PRO      3.0    16.6    +      -       -      +
    675A  LEU*     3.6    13.3    -      -       -      +
    676A  VAL      3.3     0.4    -      -       -      -
    677A  THR*     1.3    76.9    -      -       -      +
    679A  MET*     1.3    57.0    +      -       -      +
    681A  GLU*     3.3     7.1    +      -       -      +
    682A  LYS*     3.0    60.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 679 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    344A  PRO*     3.4    42.3    -      -       +      +
    345A  ALA*     3.9     3.1    -      -       -      -
    347A  VAL*     5.3     1.1    -      -       +      +
    348A  CYS*     6.0     2.5    -      -       +      +
    351A  LEU*     3.4    18.6    -      -       +      +
    352A  THR*     4.6     8.1    -      -       +      -
    355A  ILE*     3.9    12.3    -      -       +      -
    453A  TRP      3.7    17.9    -      -       -      +
    454A  GLY*     3.6    22.7    -      -       -      +
    455A  ILE*     3.8    20.2    -      -       +      -
    675A  LEU      3.0    15.8    +      -       -      +
    676A  VAL*     3.6    12.6    -      -       +      +
    678A  GLN*     1.3    78.3    -      -       -      +
    680A  VAL*     1.3    58.9    -      -       +      +
    682A  LYS*     3.3     5.1    +      -       -      +
    683A  TRP*     2.9    27.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 680 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    344A  PRO*     4.7     5.2    -      -       +      -
    381A  PHE*     3.8    32.5    -      -       +      -
    382A  THR      5.6     2.0    -      -       -      +
    384A  PRO*     3.9    36.3    -      -       +      -
    676A  VAL*     2.9    25.8    +      -       +      +
    677A  THR*     3.9     5.2    -      -       -      +
    679A  MET*     1.3    82.4    -      -       +      +
    681A  GLU*     1.3    59.1    +      -       -      +
    683A  TRP*     3.6    11.4    -      -       +      +
    684A  LEU*     2.9    30.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 681 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    386A  ASP*     4.4     2.8    -      -       -      +
    677A  THR*     2.9    32.3    +      -       +      +
    678A  GLN*     3.6     8.1    -      -       -      +
    679A  MET      3.3     0.4    -      -       -      -
    680A  VAL*     1.3    76.6    -      -       -      +
    682A  LYS*     1.3    58.4    +      -       +      +
    684A  LEU*     3.3     8.1    +      -       -      +
    685A  ASP*     2.9    35.9    +      -       -      +
    688A  ARG*     2.9    38.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 682 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    347A  VAL*     3.7    21.0    -      -       +      +
    348A  CYS*     3.9    27.8    -      -       +      -
    351A  LEU*     4.2     8.7    -      -       +      -
    678A  GLN*     3.0    53.6    +      -       +      +
    679A  MET*     3.8     4.5    -      -       -      +
    681A  GLU*     1.3    72.6    -      -       +      +
    683A  TRP*     1.3    66.6    +      -       -      +
    685A  ASP*     3.4    23.5    +      -       -      +
    686A  ARG*     3.5     8.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 683 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    342A  CYS*     2.9    25.0    +      -       -      -
    344A  PRO*     3.7    42.8    -      -       +      +
    347A  VAL*     3.7    23.5    -      -       +      +
    381A  PHE*     5.8     1.3    -      +       -      -
    383A  LEU*     4.5    12.8    -      -       +      -
    384A  PRO*     4.1    22.9    -      -       +      -
    387A  ILE*     4.4     6.1    -      -       +      -
    398A  LEU*     3.7    36.6    -      -       +      -
    402A  VAL*     3.9    21.1    -      -       +      -
    679A  MET      2.9    16.8    +      -       -      +
    680A  VAL*     3.6    14.8    -      -       +      +
    682A  LYS*     1.3    77.1    -      -       -      +
    684A  LEU*     1.3    85.2    +      -       +      +
    686A  ARG*     3.1    14.9    +      -       -      +
    687A  TYR*     3.4    27.8    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 684 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    384A  PRO*     3.7    23.6    -      -       +      -
    386A  ASP*     3.9    19.5    -      -       +      +
    387A  ILE*     4.2    20.2    -      -       +      +
    390A  LEU*     4.7    10.1    -      -       +      -
    398A  LEU*     4.3    10.3    -      -       +      -
    680A  VAL*     2.9    16.9    +      -       +      +
    681A  GLU*     3.3    15.2    +      -       -      +
    683A  TRP*     1.3    94.9    -      -       +      +
    685A  ASP*     1.3    61.1    +      -       -      +
    687A  TYR*     2.9     7.1    +      -       +      +
    688A  ARG*     2.9    54.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 685 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    681A  GLU*     2.9    21.6    +      -       -      +
    682A  LYS*     3.6    22.6    -      -       -      +
    683A  TRP      3.2     0.6    -      -       -      -
    684A  LEU*     1.3    71.8    -      -       -      +
    686A  ARG*     1.3    64.6    +      -       -      +
    688A  ARG*     2.7    35.6    +      -       -      +
    689A  GLN*     3.2    47.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 686 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    338A  GLN      5.7     2.6    +      -       -      -
    342A  CYS*     3.0    33.6    -      -       -      +
    347A  VAL*     5.2     5.8    -      -       +      -
    397A  LYS*     3.6    23.0    -      -       -      +
    401A  GLU*     2.7    31.8    +      -       -      -
    682A  LYS      3.5     6.1    +      -       -      +
    683A  TRP*     3.1    10.4    +      -       -      +
    684A  LEU      3.0     1.4    -      -       -      -
    685A  ASP*     1.3    81.2    -      -       -      +
    687A  TYR*     1.3    75.3    +      -       +      +
    689A  GLN*     3.9     5.6    +      -       -      +
    690A  ILE*     3.5    20.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 687 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    342A  CYS*     3.7    12.6    +      -       -      +
    390A  LEU*     4.1    15.6    -      -       +      +
    391A  PRO*     5.8     0.5    -      -       -      +
    394A  VAL*     3.7    23.6    -      -       +      +
    397A  LYS*     4.2     9.6    -      -       +      -
    398A  LEU*     3.6    44.0    +      -       +      -
    401A  GLU*     2.6    42.3    +      -       -      +
    683A  TRP*     3.4    41.5    -      +       -      -
    684A  LEU*     2.9     7.4    +      -       -      +
    686A  ARG*     1.3    88.9    -      -       +      +
    688A  ARG*     1.3    62.8    +      -       -      +
    689A  GLN      3.1     2.0    -      -       -      -
    690A  ILE*     3.2    35.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 688 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    386A  ASP*     3.4    23.0    +      -       -      +
    390A  LEU*     4.2    16.8    -      -       +      +
    681A  GLU*     2.9    48.4    +      -       -      -
    684A  LEU*     2.9    32.8    +      -       +      +
    685A  ASP*     2.7    37.8    +      -       -      +
    687A  TYR*     1.3    76.6    -      -       -      +
    689A  GLN*     1.3    60.7    +      -       +      +
    690A  ILE      3.2     1.5    -      -       -      +
    691A  ARG*     3.2    28.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 689 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    685A  ASP*     3.2    38.1    +      -       -      +
    686A  ARG*     3.9     4.0    +      -       -      +
    687A  TYR      3.1     1.2    -      -       -      -
    688A  ARG*     1.3    81.2    -      -       +      +
    690A  ILE*     1.3    62.7    +      -       -      +
    691A  ARG*     3.5    17.7    +      -       -      +
----------------------------------------------------------
 Back to top of page


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