Contacts of the helix formed by residues 569 - 578 (chain B) in PDB entry 2DB3


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 LYS 569 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    403B  ARG*     6.3     0.9    -      -       -      +
    406B  ASP*     4.5    14.3    +      -       -      +
    567B  PRO*     3.2    18.2    -      -       -      +
    568B  SER*     1.3    94.9    +      -       -      +
    570B  ILE*     1.3    66.0    +      -       -      +
    571B  ASP*     3.3    11.4    -      -       +      +
    572B  ASP*     3.2    18.1    +      -       +      +
    601B  ILE*     3.8     4.5    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 570 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    569B  LYS*     1.3    69.7    -      -       -      +
    571B  ASP*     1.3    79.8    +      -       -      +
    573B  TYR*     2.9    37.9    +      -       +      +
    574B  VAL*     3.1    11.5    +      -       +      +
    601B  ILE*     3.8    14.8    -      -       +      +
    604B  ASP*     3.7    51.3    +      -       +      +
    605B  LEU*     3.9    11.4    -      -       +      +
    608B  ILE*     3.6    27.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 571 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    402B  ASP*     4.9     0.6    -      -       -      +
    434B  THR*     3.5    37.4    -      -       +      +
    435B  PHE      5.0     0.9    +      -       -      -
    436B  PRO*     3.3    28.4    -      -       -      +
    459B  GLY*     4.8     6.8    -      -       -      +
    551B  ARG*     4.9     5.8    -      -       -      +
    569B  LYS*     3.3     8.3    -      -       +      +
    570B  ILE*     1.3    86.5    -      -       -      +
    572B  ASP*     1.3    63.7    +      -       -      +
    574B  VAL*     3.1     6.2    +      -       -      +
    575B  HIS*     3.1    29.8    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 572 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    547B  SER*     2.6    27.3    +      -       -      -
    550B  SER*     3.0    24.6    +      -       -      -
    551B  ARG*     5.2     5.2    +      -       -      +
    567B  PRO*     3.5    20.9    -      -       +      +
    569B  LYS*     3.2    17.6    +      -       +      +
    570B  ILE      3.1     0.8    -      -       -      -
    571B  ASP*     1.3    75.8    -      -       -      +
    573B  TYR*     1.3    64.2    -      -       -      +
    575B  HIS*     3.5     5.6    +      -       -      +
    576B  ARG*     3.1    31.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 573 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    467B  GLN*     2.9    42.5    +      -       -      +
    469B  ILE*     3.8     9.6    -      -       +      +
    563B  ASN*     3.4    17.9    -      -       -      -
    566B  MET*     4.1    16.6    -      -       +      -
    567B  PRO*     3.6    16.9    -      -       +      +
    569B  LYS      3.5     2.6    +      -       -      -
    570B  ILE*     2.9    28.5    +      -       +      +
    572B  ASP*     1.3    78.4    -      -       -      +
    574B  VAL*     1.3    65.7    +      -       +      +
    576B  ARG*     3.3     4.3    +      -       -      +
    577B  ILE*     3.0    44.7    +      -       +      +
    589B  ALA*     5.1     0.7    -      -       -      +
    591B  SER*     3.2    25.0    +      -       -      -
    605B  LEU*     3.8    15.8    -      -       +      +
    608B  ILE*     3.6    23.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 574 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    291B  THR*     3.9    12.6    +      -       +      +
    433B  ALA*     5.0     4.3    -      -       +      +
    434B  THR*     4.2    12.6    -      -       +      -
    459B  GLY      3.4    21.1    -      -       -      +
    460B  GLY      3.7    20.6    -      -       -      +
    461B  ALA*     4.0    12.2    -      -       +      +
    462B  CYS      5.3     1.0    +      -       -      +
    570B  ILE*     3.1    13.5    +      -       +      +
    571B  ASP*     3.5     9.9    -      -       -      +
    573B  TYR*     1.3    81.2    -      -       +      +
    575B  HIS*     1.3    62.5    +      -       +      +
    577B  ILE*     3.6     9.7    -      -       -      +
    578B  GLY*     3.3    17.5    +      -       -      -
    608B  ILE*     3.7    24.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 575 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    291B  THR*     4.3     4.7    -      -       -      +
    400B  GLU*     3.2    25.4    +      -       -      -
    432B  SER*     4.0     7.4    -      -       -      -
    433B  ALA*     4.0    18.2    -      -       +      -
    434B  THR*     2.9    33.0    +      -       +      +
    550B  SER*     2.9    19.2    -      -       -      +
    551B  ARG*     3.4    36.8    +      -       +      +
    571B  ASP      3.1    27.8    +      -       -      +
    572B  ASP*     4.0     6.7    -      -       -      +
    573B  TYR      3.3     0.2    -      -       -      -
    574B  VAL*     1.3    74.2    -      -       +      +
    576B  ARG*     1.3    64.4    +      -       -      +
    578B  GLY      3.2     4.0    +      -       -      -
    579B  ARG*     2.9    36.7    +      -       -      +
   2902B  ANP      4.7     2.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 576 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    495B  PHE*     3.6    38.5    +      -       +      +
    496B  VAL      3.7    23.2    +      -       -      -
    497B  GLU*     4.6     9.9    +      -       -      +
    547B  SER*     3.0    29.0    +      -       -      +
    550B  SER*     3.5    20.2    -      -       -      -
    561B  VAL*     3.5     9.5    -      -       -      +
    563B  ASN*     2.9    25.3    +      -       -      +
    565B  ASP      2.8    28.7    +      -       -      -
    567B  PRO*     3.5    17.8    -      -       -      +
    572B  ASP*     3.1    29.0    +      -       -      +
    573B  TYR*     3.6     4.0    -      -       -      +
    575B  HIS*     1.3    76.2    -      -       -      +
    577B  ILE*     1.3    62.5    +      -       -      +
    579B  ARG*     3.0    22.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 577 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    461B  ALA*     3.8    15.9    -      -       +      -
    462B  CYS      5.1     1.6    -      -       -      +
    465B  VAL*     4.0    13.3    -      -       +      +
    467B  GLN*     3.5    38.4    -      -       +      +
    561B  VAL*     3.8     9.4    -      -       +      -
    563B  ASN*     3.8     9.9    -      -       -      +
    573B  TYR*     3.0    46.1    +      -       +      +
    574B  VAL*     3.6    11.0    -      -       -      +
    576B  ARG*     1.3    76.8    -      -       -      +
    578B  GLY*     1.3    59.0    +      -       -      +
    579B  ARG      3.1     4.8    +      -       -      -
    580B  THR*     3.2    26.9    -      -       -      +
    589B  ALA*     3.8    23.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 578 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    291B  THR*     3.3    28.8    -      -       -      -
    462B  CYS*     5.4     2.9    -      -       -      -
    465B  VAL*     5.8     0.2    -      -       -      -
    574B  VAL      3.3     4.2    +      -       -      -
    575B  HIS      3.2     7.8    +      -       -      -
    576B  ARG      3.0     1.6    -      -       -      -
    577B  ILE*     1.3    79.8    -      -       -      +
    579B  ARG*     1.3    68.2    +      -       -      +
    580B  THR      3.0    16.0    +      -       -      +
    582B  ARG*     3.5    19.2    +      -       -      +
----------------------------------------------------------
 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