Contacts of the strand formed by residues 724 - 731 (chain B) in PDB entry 3ZNS


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 VAL 724 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202B    K      2.6    27.2    -      -       -      -
    689B  CYS*     3.5    19.3    -      -       -      -
    693B  GLN*     3.4    30.1    -      -       -      +
    701B  ILE      3.3     9.9    -      -       -      +
    703B  ILE*     4.0    19.7    -      -       +      -
    718B  PHE*     3.5    43.7    -      -       +      -
    721B  ASP*     3.2     6.8    +      -       -      +
    722B  PRO      3.2     0.9    -      -       -      -
    723B  SER*     1.3    80.7    +      -       -      +
    725B  LEU*     1.3    65.0    +      -       -      +
    726B  TYR*     4.7     1.3    -      -       -      +
    755B  PHE*     3.6     5.9    -      -       -      +
    789B  PHE*     4.2     2.0    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 725 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    701B  ILE      2.9     7.1    +      -       -      -
    702B  LEU*     3.4    23.1    -      -       +      +
    703B  ILE*     2.7    34.0    +      -       -      +
    724B  VAL*     1.3    73.3    -      -       -      +
    726B  TYR*     1.3    57.7    +      -       -      +
    727B  ILE*     4.0    15.9    -      -       +      -
    755B  PHE*     3.4    30.1    -      -       +      +
    757B  VAL*     4.3     7.6    -      -       +      -
    785B  ILE*     3.9    18.8    -      -       +      +
    786B  ALA*     4.5     2.2    -      -       -      -
    789B  PHE*     3.5    49.5    -      -       +      -
    895B  TRP*     4.1    12.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 726 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    703B  ILE*     3.4    19.3    -      -       +      -
    705B  ASP*     2.7    42.3    +      -       +      +
    710B  HIS*     4.0     6.3    -      -       -      -
    711B  GLY*     3.2    23.0    +      -       -      -
    714B  THR*     3.5    31.9    -      -       +      +
    715B  GLN*     4.0    21.8    -      -       +      -
    718B  PHE*     5.5     5.6    -      -       +      -
    724B  VAL*     4.0     5.3    -      -       +      -
    725B  LEU*     1.3    72.1    -      -       -      +
    727B  ILE*     1.3    57.9    +      -       -      +
    728B  SER*     3.5    24.0    -      -       -      -
    755B  PHE      3.2     8.7    +      -       -      +
    756B  ASN*     3.4    27.6    -      -       -      +
    757B  VAL      2.8    32.4    +      -       -      +
    758B  ASN*     4.5     1.3    -      -       -      -
    797B  SER*     5.7     0.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 727 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    702B  LEU*     3.9    24.0    -      -       +      -
    703B  ILE      2.8    11.1    +      -       -      +
    704B  VAL*     3.3     9.4    -      -       +      +
    705B  ASP      2.8    25.6    +      -       -      +
    725B  LEU*     4.0    18.2    -      -       +      -
    726B  TYR*     1.3    79.2    -      -       -      +
    728B  SER*     1.3    62.8    +      -       -      +
    729B  LEU*     4.2     2.9    +      -       +      -
    757B  VAL*     3.3    24.2    -      -       +      +
    759B  VAL*     4.6     8.7    -      -       +      -
    781B  VAL*     5.0     1.1    -      -       +      +
    782B  VAL*     3.9    52.0    -      -       +      +
    785B  ILE*     4.4    10.8    -      -       +      -
    786B  ALA*     4.7     1.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 728 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201B    K      2.8    23.7    -      -       -      -
    705B  ASP*     3.5     4.3    -      -       -      -
    710B  HIS*     3.7     4.2    -      -       -      -
    726B  TYR*     3.5    31.8    +      -       -      -
    727B  ILE*     1.3    75.0    -      -       -      +
    729B  LEU*     1.3    57.2    +      -       -      +
    730B  HIS*     3.0    20.0    -      -       -      -
    757B  VAL      2.9     6.9    +      -       -      -
    758B  ASN*     3.6     8.4    -      -       -      -
    759B  VAL*     2.7    33.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 729 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201B    K      2.8    18.7    -      -       -      -
    704B  VAL*     4.5    13.0    -      -       +      -
    705B  ASP      3.1    15.2    +      -       -      +
    706B  TRP*     4.3    10.5    -      -       +      +
    707B  ASP      3.0     9.0    -      -       -      +
    708B  VAL*     4.7     0.3    -      -       -      -
    727B  ILE*     4.7     3.4    -      -       +      +
    728B  SER*     1.3    74.1    -      -       -      +
    730B  HIS*     1.3    61.4    +      -       -      +
    759B  VAL*     3.5    16.8    -      -       +      +
    761B  TRP*     4.2    11.2    -      -       +      +
    774B  TYR*     4.1    35.2    +      -       +      -
    777B  ALA*     3.4    33.2    -      -       +      -
    778B  PHE*     4.5    13.7    -      -       +      -
    782B  VAL*     4.2    20.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 730 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201B    K      3.8     0.7    -      -       -      -
    708B  VAL*     3.2    17.7    -      -       -      +
    709B  HIS      3.7     2.5    -      -       -      -
    710B  HIS*     3.4    34.3    -      +       +      +
    728B  SER*     3.0    29.8    -      -       -      -
    729B  LEU*     1.3    74.3    -      -       -      +
    731B  ARG*     1.3    73.9    +      -       -      +
    732B  HIS*     3.5    18.1    -      +       -      -
    741B  SER      3.8     8.0    +      -       -      -
    742B  GLY      3.0    27.7    +      -       -      -
    758B  ASN*     3.6     8.3    +      -       -      +
    759B  VAL      3.2     6.6    +      -       -      +
    760B  ALA*     3.9     9.7    -      -       +      +
    761B  TRP*     3.0    31.9    +      -       -      -
    774B  TYR*     5.0     1.1    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 731 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    708B  VAL*     3.0    15.4    +      -       +      +
    710B  HIS      5.3     0.7    +      -       -      -
    730B  HIS*     1.3    77.0    +      -       -      +
    732B  HIS*     1.3    58.2    +      -       -      +
    733B  ASP*     2.7    32.8    +      -       -      +
    736B  ASN      5.8     1.2    +      -       -      -
    737B  PHE*     3.3    57.9    -      -       +      +
    738B  PHE      5.1     1.0    -      -       -      +
    761B  TRP*     4.0     3.9    -      -       -      -
    764B  GLY*     5.4     0.4    -      -       -      -
    765B  LEU*     3.1    31.8    -      -       -      +
    808B  ALA*     2.9    29.1    +      -       -      +
    811B  GLY      2.9    24.0    +      -       -      -
    813B  TYR*     3.3    28.7    -      -       +      +
----------------------------------------------------------
 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