Contacts of the strand formed by residues 131 - 136 (chain F) in PDB entry 3LUE


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 ALA 131 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102F  PRO*     3.3    12.3    -      -       +      +
    103F  VAL      3.1    20.8    +      -       -      -
    124F  PHE*     4.0     4.5    -      -       -      -
    129F  THR*     3.1     9.7    -      -       -      +
    130F  PRO*     1.4    82.8    -      -       +      +
    132F  MET*     1.3    67.7    +      -       -      +
    353F  GLN*     4.9     4.0    -      -       -      +
    356F  TRP*     3.8    25.1    -      -       +      -
    357F  ILE      3.2    15.9    -      -       -      +
    358F  SER*     4.2     5.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 132 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103F  VAL*     3.3    18.6    -      -       +      +
    105F  LEU*     3.5    35.4    -      -       +      -
    119F  MET      3.9     5.8    -      -       -      +
    120F  THR*     4.1    21.3    -      -       -      -
    123F  MET*     3.8    21.1    -      -       +      -
    124F  PHE*     3.6    26.5    -      -       +      -
    129F  THR*     4.8     2.0    -      -       +      -
    131F  ALA*     1.3    80.0    -      -       -      +
    133F  TYR*     1.3    61.2    +      -       -      +
    134F  VAL*     4.0    23.6    -      -       +      -
    356F  TRP*     3.4     5.1    -      -       -      -
    357F  ILE*     2.9    44.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 133 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103F  VAL      3.1     4.9    +      -       -      +
    104F  LEU*     3.4    10.2    -      -       +      -
    105F  LEU*     2.8    32.6    +      -       -      +
    132F  MET*     1.3    78.5    -      -       -      +
    134F  VAL*     1.3    82.9    +      -       -      +
    135F  ALA*     3.9    13.7    -      -       +      -
    346F  LEU*     5.1     1.8    -      -       +      -
    352F  PHE*     3.5    23.6    -      +       +      -
    355F  MET*     3.1    44.5    -      -       +      +
    356F  TRP*     3.4    20.8    -      -       +      -
    357F  ILE*     5.1     0.7    -      -       +      -
    373F  LYS      3.7    16.6    +      -       -      -
    374F  CYS*     3.7    32.0    -      -       -      -
    375F  PHE*     4.5    12.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 134 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105F  LEU*     3.4    11.4    -      -       +      +
    106F  THR      4.4     0.2    -      -       -      -
    107F  GLU*     3.4    40.6    -      -       +      +
    116F  ARG*     4.4    10.0    +      -       +      +
    119F  MET*     3.9    25.1    -      -       +      -
    120F  THR*     4.8     0.2    -      -       -      +
    132F  MET*     4.0    20.9    -      -       +      -
    133F  TYR*     1.3    84.6    -      -       -      +
    135F  ALA*     1.3    57.3    +      -       -      +
    370F  VAL*     3.8    23.8    -      -       +      -
    374F  CYS*     3.7    22.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 135 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    104F  LEU*     4.4    16.1    -      -       +      +
    105F  LEU      3.4     5.5    +      -       -      -
    106F  THR*     3.2     7.3    -      -       -      -
    107F  GLU*     2.7    32.8    +      -       -      -
    133F  TYR*     3.9    19.8    -      -       +      -
    134F  VAL*     1.3    74.1    -      -       -      +
    136F  ILE*     1.3    56.8    +      -       -      +
    139F  VAL*     6.1     1.8    -      -       +      -
    140F  LEU*     3.4    26.0    -      -       +      -
    346F  LEU*     5.3     3.4    -      -       +      -
    375F  PHE*     6.6     0.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 136 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    107F  GLU*     3.3    26.8    +      -       +      +
    108F  ALA      4.4     6.5    -      -       -      +
    109F  PRO*     3.8    26.9    -      -       +      -
    135F  ALA*     1.3    72.0    -      -       -      +
    137F  GLN*     1.3    64.0    +      -       -      +
    138F  ALA*     3.9    10.3    -      -       +      +
    139F  VAL*     3.5    23.5    +      -       +      +
    140F  LEU*     2.9    19.9    -      -       -      +
    161F  HIS*     4.2    24.9    -      -       +      +
    163F  VAL*     5.4     0.4    -      -       +      -
    175F  ILE*     5.6     2.2    -      -       +      -
    375F  PHE*     4.2    30.8    -      -       +      -
----------------------------------------------------------
 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