Contacts of the strand formed by residues 518 - 522 (chain B) in PDB entry 1F89


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 TYR 518 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    307B  LEU*     5.1     0.4    -      -       +      -
    487B  PHE      2.8    16.0    +      -       -      +
    488B  ALA*     2.9    13.0    -      -       +      -
    489B  MET      2.8    25.6    +      -       -      -
    517B  VAL*     1.3    73.0    -      -       -      +
    519B  VAL*     1.3    62.9    +      -       -      +
    520B  MET*     4.9     2.2    -      -       +      -
    540B  VAL*     4.5     7.2    -      -       +      -
    541B  VAL      3.4    16.4    -      -       -      -
    542B  ASP*     3.5    22.2    -      -       +      +
    543B  PRO*     3.5     6.5    -      -       +      -
    548B  VAL*     5.2     4.5    -      -       +      -
    561B  GLU      4.1     5.2    +      -       -      -
    562B  LEU*     3.7    46.8    -      -       +      -
    563B  ASP      3.2    17.1    +      -       -      -
    566B  VAL*     3.4    23.4    -      -       -      +
    567B  ILE*     3.5    39.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 519 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    489B  MET*     3.4    16.4    -      -       +      +
    491B  TYR*     4.3     7.9    -      -       +      -
    508B  ALA*     3.7    23.8    -      -       +      +
    511B  ARG*     4.0    10.1    -      -       +      +
    512B  ALA*     3.5    32.1    -      -       +      +
    517B  VAL*     3.9     5.6    +      -       +      -
    518B  TYR*     1.3    79.9    -      -       -      +
    520B  MET*     1.3    64.4    +      -       -      +
    521B  LEU*     3.8    24.5    -      -       +      -
    539B  ILE*     3.7     2.1    -      -       -      +
    540B  VAL*     3.3     4.0    -      -       -      +
    541B  VAL*     3.0    38.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 520 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    313B  VAL*     4.0    26.5    -      -       +      -
    315B  LEU*     4.2    21.1    -      -       +      -
    348B  LEU*     4.7     3.1    -      -       +      -
    350B  VAL*     4.8     2.0    -      -       -      -
    487B  PHE*     5.3     0.2    -      -       +      -
    488B  ALA*     4.1    14.8    -      -       +      -
    489B  MET      3.2     5.5    +      -       -      +
    490B  ILE*     3.5    37.2    -      -       +      +
    491B  TYR      2.9    26.3    +      -       -      -
    518B  TYR*     4.9     0.2    -      -       +      -
    519B  VAL*     1.3    79.1    -      -       -      +
    521B  LEU*     1.3    66.4    +      -       -      +
    522B  CYS      4.2     0.2    -      -       -      -
    539B  ILE      3.2     5.8    -      -       -      +
    540B  VAL*     3.8    17.0    -      -       +      -
    562B  LEU*     3.6    39.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 521 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    315B  LEU*     3.5     4.1    -      -       -      +
    472B  MET*     3.4    32.3    -      -       +      -
    491B  TYR*     3.6    34.3    -      -       +      +
    504B  TRP*     3.5    41.3    -      -       +      +
    508B  ALA*     3.5    25.1    -      -       +      -
    519B  VAL*     3.8     9.9    -      -       +      -
    520B  MET*     1.3    84.7    -      -       -      +
    522B  CYS*     1.3    60.7    +      -       -      +
    523B  SER      3.9     0.4    -      -       -      -
    538B  SER*     3.0     7.5    -      -       -      -
    539B  ILE*     2.9    36.3    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 522 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    315B  LEU*     4.3     7.9    -      -       +      -
    316B  VAL      3.7    23.6    -      -       -      -
    350B  VAL*     3.6    31.0    -      -       +      -
    351B  LEU      3.2    31.6    -      -       -      +
    352B  PRO*     3.2    16.0    -      -       -      +
    490B  ILE*     6.0     0.2    -      -       -      +
    491B  TYR      3.2     8.5    +      -       -      -
    492B  PRO*     3.7     4.2    -      -       +      +
    493B  SER      3.0    23.1    +      -       -      +
    504B  TRP*     4.7     0.7    -      -       -      -
    520B  MET      4.2     0.6    -      -       -      -
    521B  LEU*     1.3    73.0    -      -       -      +
    523B  SER*     1.3    59.0    +      -       -      +
    538B  SER*     3.5     5.8    -      -       -      -
----------------------------------------------------------
 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