Contacts of the strand formed by residues 178 - 184 (chain F) in PDB entry 1FZB


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 PHE 178 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207E  SER*     6.3     2.7    -      -       -      -
    167F  TYR      3.5     0.3    -      -       -      +
    168F  PHE*     3.3    12.5    -      -       -      -
    169F  ILE*     2.8    51.5    +      -       +      +
    171F  PRO*     3.5    37.9    -      -       +      -
    176F  GLN*     3.6    15.9    -      -       +      -
    177F  GLN*     1.3    80.5    -      -       -      +
    179F  LEU*     1.3    66.5    +      -       -      +
    180F  VAL*     3.6    14.3    +      -       +      -
    228F  LEU*     5.2     0.2    -      -       +      -
    232F  LYS*     3.9    56.1    -      -       +      +
    235F  LEU*     4.4    13.0    -      -       +      -
    236F  ILE*     4.3     5.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 179 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    203E  ILE*     3.8    44.2    -      -       +      -
    204E  PRO      6.0     0.4    -      -       -      +
    205E  VAL      5.5     0.7    -      -       -      +
    226E  LEU*     4.7     4.9    -      -       +      -
    145F  ILE*     4.1    19.5    -      -       +      -
    166F  LEU*     3.7    24.5    -      -       +      -
    167F  TYR*     3.1    32.5    -      -       -      +
    168F  PHE*     3.7    16.2    -      -       +      +
    178F  PHE*     1.3    77.7    -      -       -      +
    180F  VAL*     1.3    67.2    +      -       -      +
    218F  LEU*     3.7    22.8    -      -       +      +
    228F  LEU*     4.0    10.2    -      -       -      +
    232F  LYS*     4.9     2.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 180 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    153F  CYS*     3.9     6.1    -      -       -      -
    166F  LEU*     3.2     8.7    -      -       -      +
    167F  TYR      2.9    38.1    +      -       -      +
    169F  ILE*     3.5    37.2    -      -       +      -
    178F  PHE*     3.6    14.8    -      -       +      -
    179F  LEU*     1.3    80.6    -      -       -      +
    181F  TYR*     1.3    62.9    +      -       -      +
    182F  CYS*     3.7    24.0    -      -       -      -
    192F  THR*     4.9     4.7    -      -       -      +
    193F  VAL      5.2     2.0    -      -       -      +
    218F  LEU*     4.5     7.2    -      -       -      -
    228F  LEU*     4.4    20.0    -      -       +      -
    236F  ILE*     5.1     0.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 181 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    153F  CYS*     3.9     3.2    -      -       -      -
    164F  SER*     3.4    23.2    -      -       -      -
    165F  GLY*     3.7    15.7    -      -       -      -
    166F  LEU*     3.5    13.7    -      -       +      -
    180F  VAL*     1.3    74.1    -      -       -      +
    182F  CYS*     1.3    66.9    +      -       -      +
    183F  GLU*     4.8    10.5    -      -       +      +
    192F  THR*     4.0     0.3    -      -       -      -
    193F  VAL*     3.4    50.0    +      -       +      +
    196F  LYS*     5.5     5.4    -      -       -      -
    218F  LEU*     4.2    14.6    -      -       +      +
    219F  SER      3.1    22.0    -      -       -      +
    220F  PRO      3.3    26.4    +      -       -      -
    221F  THR*     3.8     4.2    -      -       -      -
    222F  GLY*     3.6    23.5    +      -       -      -
    226F  PHE*     4.9     7.9    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 182 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    153F  CYS*     2.0    55.4    -      -       +      +
    156F  ILE*     4.3     4.5    -      -       +      -
    164F  SER*     3.0    25.5    -      -       -      -
    165F  GLY      2.8    12.7    +      -       -      -
    167F  TYR*     3.5    35.4    -      -       +      -
    180F  VAL*     3.7    12.6    -      -       -      -
    181F  TYR*     1.3    78.5    -      -       -      +
    183F  GLU*     1.3    60.6    +      -       -      +
    184F  ILE*     3.9     8.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 183 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    164F  SER*     3.4    11.7    -      -       -      +
    181F  TYR*     4.0     9.1    +      -       +      -
    182F  CYS*     1.3    71.3    -      -       -      +
    184F  ILE*     1.3    62.6    +      -       -      +
    185F  ASP*     5.5     0.9    -      -       +      +
    189F  ASN      3.3     3.6    -      -       -      +
    190F  GLY*     3.6     0.2    -      -       -      -
    191F  TRP*     2.7    57.5    +      -       +      +
    193F  VAL*     4.3    13.8    -      -       +      +
    196F  LYS*     5.9     1.4    +      -       -      -
    249F  GLU*     4.9     1.0    -      -       -      +
    383F  THR*     5.3     1.7    +      -       -      -
    385F  LYS*     2.7    39.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 184 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    153F  CYS      5.2     0.9    -      -       -      +
    156F  ILE*     5.1     1.1    -      -       +      -
    157F  ALA*     4.7    12.1    -      -       +      -
    161F  ALA*     3.4    47.1    -      -       +      +
    162F  LYS*     3.8    18.5    -      -       -      +
    163F  GLN      3.1    29.6    -      -       -      +
    164F  SER*     3.0    16.3    +      -       -      -
    167F  TYR*     3.5     8.7    -      -       +      +
    182F  CYS*     3.9     9.6    -      -       +      -
    183F  GLU*     1.3    79.0    -      -       -      +
    185F  ASP*     1.3    76.7    +      -       -      +
    188F  GLY*     5.1     3.1    -      -       -      -
    189F  ASN      3.3     8.5    -      -       -      +
    190F  GLY*     4.7     7.0    -      -       -      -
----------------------------------------------------------
 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