Contacts of the strand formed by residues 506 - 511 (chain A) in PDB entry 3BRF


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 506 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    499A  GLN*     3.2     4.3    -      -       -      -
    500A  MET*     2.7    48.8    +      -       +      -
    503A  ASN*     3.0    36.3    +      -       +      +
    504A  GLU      3.4     0.2    -      -       -      -
    505A  LEU*     1.3    81.8    -      -       -      +
    507A  TYR*     1.3    61.4    +      -       -      +
    517A  GLN*     3.5    36.6    -      -       +      +
    518A  HIS      3.1     7.2    -      -       -      +
    519A  GLN*     4.4    19.1    -      -       +      +
    949D  MET*     4.8    11.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 507 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    472A  ARG*     4.6     1.3    -      -       +      -
    479A  VAL*     3.4    32.3    -      -       +      +
    481A  LEU*     4.2     0.3    -      -       -      +
    497A  ALA*     3.8    15.7    -      -       +      -
    498A  PHE      3.2    16.8    -      -       -      +
    499A  GLN*     3.1    36.6    +      -       +      -
    500A  MET*     5.4     1.8    -      -       -      -
    504A  GLU      3.6    13.0    -      -       -      -
    505A  LEU      3.5    15.3    -      -       -      -
    506A  VAL*     1.3    75.6    -      -       -      +
    508A  LEU*     1.3    70.2    +      -       -      +
    509A  CYS      3.4     0.5    +      -       -      -
    517A  GLN*     3.6     4.6    -      -       -      -
    518A  HIS*     2.6    41.9    +      +       +      +
    520A  ALA*     3.9     8.7    -      -       +      -
    528A  HIS*     2.8    32.0    -      +       -      -
    530A  ILE*     3.9    15.0    -      -       +      -
    534A  ALA*     4.3    13.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 508 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    394A  LEU*     6.3     1.8    -      -       +      -
    408A  LEU*     5.0     5.8    -      -       +      -
    457A  LEU*     6.4     0.7    -      -       +      -
    466A  LEU*     4.3    24.0    -      -       +      -
    467A  PRO*     5.8     1.3    -      -       +      -
    469A  LEU*     4.3    22.0    -      -       +      +
    498A  PHE*     2.9    32.3    +      -       +      +
    500A  MET*     5.6     3.4    -      -       -      +
    507A  TYR*     1.3    71.4    -      -       -      +
    509A  CYS*     1.3    61.0    +      -       -      +
    515A  ILE*     3.6    30.7    -      -       +      -
    516A  ILE      3.8     2.5    -      -       -      +
    517A  GLN*     5.2     1.3    -      -       -      +
    534A  ALA*     3.6    12.1    -      -       -      +
    536A  TRP*     3.3    48.6    +      -       +      +
    947D  PRO*     4.1    19.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 509 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    507A  TYR      3.6     1.1    -      -       -      +
    508A  LEU*     1.3    78.4    -      -       -      +
    510A  LEU*     1.3    77.8    +      -       -      +
    515A  ILE*     3.6     6.2    -      -       -      +
    516A  ILE*     2.8    44.3    +      -       +      +
    518A  HIS*     3.3    40.2    -      -       +      -
    531A  ASN*     4.5    10.1    -      -       -      -
    533A  GLY*     3.5    25.4    -      -       -      +
    534A  ALA*     3.7     4.9    -      -       +      -
    536A  TRP*     4.4     5.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 510 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    396A  ASN*     3.7    38.1    -      -       +      +
    398A  LEU*     5.8     5.4    -      -       +      -
    406A  ARG*     3.7    21.1    -      -       +      -
    417A  ALA*     3.6    24.2    -      -       +      -
    509A  CYS*     1.3    87.0    -      -       -      +
    511A  SER*     1.3    61.7    +      -       -      +
    512A  HIS*     3.5    18.2    -      -       -      +
    514A  LYS      3.4     6.5    -      -       -      +
    515A  ILE*     4.4     1.6    -      -       +      -
    516A  ILE*     4.4     0.8    -      -       -      +
    533A  GLY*     3.0    22.5    +      -       -      +
    536A  TRP*     4.2    12.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 511 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    510A  LEU*     1.3    73.7    -      -       -      +
    512A  HIS*     1.3    63.8    +      -       -      +
    514A  LYS*     2.8    52.1    +      -       -      +
    516A  ILE*     4.2    22.6    -      -       -      +
----------------------------------------------------------
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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