Contacts of the strand formed by residues 64 - 68 (chain J) in PDB entry 4FAO


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 GLN 64 (chain J).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54J  VAL      3.8     1.2    -      -       -      +
     55J  LEU*     3.0     3.6    -      -       -      +
     56J  VAL*     2.9    34.1    +      -       +      +
     62J  HIS      3.6     3.5    +      -       -      +
     63J  PRO*     1.3    74.4    -      -       -      +
     65J  GLU*     1.3    62.7    +      -       -      +
     66J  HIS*     4.1    19.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 65 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37J  GLU*     4.4     5.0    -      -       -      +
     53J  VAL*     4.2    14.5    -      -       +      +
     54J  VAL      3.5     8.1    -      -       -      +
     55J  LEU*     4.1    14.8    -      -       +      +
     64J  GLN*     1.3    76.2    -      -       -      +
     66J  HIS*     1.3    65.0    +      -       -      +
     67J  ARG*     3.0    24.7    +      -       -      +
    100J  SER*     2.8    43.8    +      -       -      -
    101J  LEU*     3.2    15.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 66 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7H  HIS*     6.1     2.9    -      +       -      -
     43H  PHE      4.0     7.6    -      -       -      -
     44H  PRO*     3.1    35.5    -      -       +      +
     37J  GLU      3.5    10.1    -      -       -      +
     38J  SER*     4.2    18.2    +      -       -      -
     39J  PRO*     4.5    18.6    -      -       +      +
     40J  HIS*     6.3     1.5    -      +       -      -
     53J  VAL*     3.5     4.0    -      -       -      +
     54J  VAL*     2.9    43.9    +      -       +      +
     56J  VAL*     5.1     5.4    -      -       +      +
     64J  GLN*     4.2    18.2    +      -       +      +
     65J  GLU*     1.3    87.4    -      -       -      +
     67J  ARG*     1.3    65.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 67 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35J  THR*     3.5    10.3    -      -       -      +
     36J  CYS*     3.4     2.3    -      -       -      -
     37J  GLU*     3.0    68.6    +      -       +      +
     38J  SER*     4.2     6.0    -      -       -      -
     52J  THR*     3.3     9.0    -      -       -      +
     53J  VAL*     3.9    11.7    -      -       +      +
     54J  VAL*     6.1     0.2    -      -       -      -
     65J  GLU*     3.0    34.8    +      -       +      +
     66J  HIS*     1.3    81.3    -      -       -      +
     68J  GLY*     1.3    58.7    +      -       -      +
     96J  ASN*     3.3    24.7    +      -       -      +
     97J  HIS*     3.1    22.3    +      -       -      +
     99J  VAL      2.6    23.3    +      -       -      -
    100J  SER*     3.1    14.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 68 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34J  CYS*     3.5     3.0    -      -       -      +
     35J  THR      3.4    13.6    +      -       -      -
     36J  CYS*     4.4     3.6    -      -       -      -
     38J  SER*     6.0     0.2    -      -       -      -
     46J  CYS*     4.4     5.8    -      -       -      -
     51J  CYS*     3.4     4.2    -      -       -      -
     52J  THR*     2.9    37.5    +      -       -      -
     67J  ARG*     1.3    75.7    -      -       -      +
     69J  CYS*     1.3    65.6    +      -       -      -
     96J  ASN*     3.4     6.2    +      -       -      -
----------------------------------------------------------
 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