Contacts of the strand formed by residues 445 - 450 (chain A) in PDB entry 4DTZ


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 445 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138A  HIS*     3.7    23.6    -      -       +      +
    139A  ILE      3.1    15.5    -      -       -      +
    140A  GLU*     4.2    10.1    -      -       +      +
    141A  VAL*     4.5     0.9    -      -       -      -
    424A  GLU      4.7     0.3    -      -       -      +
    425A  ASP*     4.6     8.1    -      -       -      +
    426A  HIS*     3.7     8.6    +      -       +      +
    427A  THR*     3.7    36.4    +      -       +      +
    429A  TYR*     4.7     2.2    -      -       +      +
    443A  GLY*     3.2    14.6    +      -       -      +
    444A  PHE*     1.3    88.3    -      -       -      +
    446A  VAL*     1.3    68.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 446 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138A  HIS*     3.5     3.3    -      -       -      +
    139A  ILE*     2.8    42.0    +      -       +      +
    141A  VAL*     3.9    16.2    -      -       +      -
    277A  LEU*     4.2     4.9    -      -       +      -
    281A  VAL*     4.3    16.8    -      -       +      -
    423A  PHE*     3.8    24.0    -      -       +      -
    424A  GLU      3.3    15.9    -      -       -      +
    425A  ASP*     4.7     1.1    -      -       -      -
    426A  HIS*     3.6     8.1    -      -       -      -
    444A  PHE*     3.6    28.5    -      -       +      -
    445A  VAL*     1.3    78.6    -      -       -      +
    447A  LYS*     1.3    63.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 447 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135A  ALA      4.7    10.1    +      -       -      +
    136A  ASP*     4.3    17.3    +      -       -      +
    137A  GLU      3.7    25.4    -      -       -      +
    138A  HIS*     4.0     4.7    -      -       +      +
    139A  ILE      5.0     0.2    -      -       -      +
    423A  PHE*     3.4     4.5    -      -       -      -
    424A  GLU*     2.8    49.0    +      -       +      +
    426A  HIS*     3.5    42.4    +      -       +      +
    446A  VAL*     1.3    80.0    -      -       -      +
    448A  ALA*     1.3    63.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 448 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130A  TRP*     5.1     3.6    -      -       +      +
    133A  LEU*     6.1     1.1    -      -       +      -
    137A  GLU      5.6     0.4    +      -       -      -
    139A  ILE*     3.6    26.2    -      -       +      +
    421A  PHE*     3.7    32.5    -      -       +      -
    422A  ASP      3.2     4.5    -      -       -      +
    423A  PHE*     4.1     6.1    -      -       +      -
    447A  LYS*     1.3    76.4    -      -       -      +
    449A  LYS*     1.3    62.4    +      -       -      +
    450A  SER      4.0     1.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 449 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    421A  PHE*     3.3     2.0    -      -       -      -
    422A  ASP*     2.8    48.1    +      -       +      +
    448A  ALA*     1.3    74.2    -      -       -      +
    450A  SER*     1.3    73.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 450 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131A  GLU*     2.7    33.4    +      -       -      -
    420A  HIS      3.7     6.2    +      -       -      -
    421A  PHE*     3.8    10.3    -      -       -      -
    422A  ASP*     5.4     0.9    -      -       -      +
    448A  ALA      4.0     0.8    +      -       -      -
    449A  LYS*     1.3    81.6    +      -       -      +
    451A  LYS*     1.3    61.2    +      -       -      +
    452A  LYS*     2.8    53.6    +      -       -      +
----------------------------------------------------------
 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