Contacts of the strand formed by residues 986 - 991 (chain A) in PDB entry 3LYI


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 LEU 986 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    975A  GLY      4.8     0.9    -      -       -      +
    978A  MET*     3.7    48.0    -      -       +      +
    979A  GLN*     2.9    22.6    +      -       +      +
    982A  SER*     3.8    21.3    -      -       -      +
    985A  LYS*     1.3    90.8    -      -       -      +
    987A  PHE*     1.3    62.2    +      -       -      +
   1000A  TRP*     3.9    34.9    -      -       +      +
   1001A  LEU*     3.6     6.3    -      -       -      +
   1002A  PRO*     3.5    32.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 987 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    947A  ILE*     4.6    17.7    -      -       +      -
    985A  LYS*     3.5    52.0    -      -       +      -
    986A  LEU*     1.3    76.1    -      -       -      +
    988A  LEU*     1.3    63.7    +      -       -      +
    989A  VAL      3.6     0.3    +      -       -      -
    999A  GLN      3.6     0.9    -      -       -      +
   1000A  TRP*     3.3     7.2    -      -       -      -
   1001A  LEU      2.7    35.0    +      -       -      +
   1003A  LYS*     3.6    54.1    -      -       +      -
   1006A  MET*     4.2    14.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 988 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    947A  ILE*     3.4     7.3    -      -       -      +
    948A  ILE*     2.9    43.5    +      -       +      +
    950A  PRO*     3.9    15.0    -      -       +      +
    967A  PRO*     3.6    35.9    -      -       +      -
    971A  VAL*     3.6    24.7    -      -       +      -
    987A  PHE*     1.3    73.9    -      -       -      +
    989A  VAL*     1.3    60.0    +      -       -      +
    998A  TRP*     3.6    24.5    -      -       +      -
    999A  GLN      3.7    13.7    -      -       -      +
   1000A  TRP*     3.6    36.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 989 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    933A  VAL*     4.4     4.0    -      -       +      -
    935A  ALA*     4.5     1.1    -      -       +      -
    945A  ALA*     3.8    15.3    -      -       +      -
    946A  LEU      3.2     6.7    -      -       -      +
    947A  ILE*     3.7    17.7    -      -       +      +
    987A  PHE      5.1     0.2    -      -       -      +
    988A  LEU*     1.3    77.8    -      -       -      +
    990A  LEU*     1.3    59.7    +      -       -      +
    991A  PHE*     3.7    31.0    -      -       +      -
    997A  SER      3.8     0.2    -      -       -      +
    998A  TRP*     3.3    13.3    -      -       -      -
    999A  GLN      2.8    42.6    +      -       -      +
   1001A  LEU*     4.2    13.7    -      -       +      -
   1006A  MET*     3.6    28.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 990 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    945A  ALA*     3.4     1.0    -      -       -      -
    946A  LEU*     2.8    45.7    +      -       +      +
    948A  ILE*     4.1     8.7    -      -       +      +
    965A  PRO*     3.5    39.3    -      -       +      -
    989A  VAL*     1.3    72.9    -      -       -      +
    991A  PHE*     1.3    66.1    +      -       -      +
    992A  PHE*     3.8     1.7    +      -       -      -
    996A  ARG*     3.5    35.7    -      -       +      +
    997A  SER      3.5    14.8    -      -       -      +
    998A  TRP*     3.8    30.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 991 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    935A  ALA*     3.8    33.0    -      -       +      -
    937A  CYS*     3.6    22.4    -      -       -      -
    943A  TYR*     3.7    21.5    -      +       +      -
    944A  PRO      3.6     9.9    -      -       -      +
    945A  ALA*     3.6    10.1    -      -       +      -
    989A  VAL*     3.7    25.6    -      -       +      -
    990A  LEU*     1.3    79.7    -      -       -      +
    992A  PHE*     1.3    58.4    +      -       -      +
    993A  ASP*     3.1    30.8    +      -       -      +
    996A  ARG*     3.7    13.7    -      -       -      +
    997A  SER      2.8    23.3    +      -       -      +
    999A  GLN*     3.7    18.6    -      -       +      -
   1001A  LEU*     4.2     1.1    -      -       +      -
   1500A  OCS      3.8    24.7    -      -       -      +
----------------------------------------------------------
 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