Contacts of the helix formed by residues 605 - 610 (chain E) in PDB entry 6T8B


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 GLY 605 (chain E).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    601E  MET*     2.6    25.5    +      -       -      +
    602E  MET*     4.4     3.3    -      -       -      -
    604E  VAL*     1.3    76.3    -      -       -      +
    606E  LYS*     1.3    65.6    +      -       -      +
    607E  LYS      3.7     0.4    -      -       -      -
    608E  VAL*     3.3    15.7    -      -       -      +
    609E  GLU*     3.6     9.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 606 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    604E  VAL      4.3     0.4    +      -       -      -
    605E  GLY*     1.3    75.2    -      -       -      +
    607E  LYS*     1.3    62.2    +      -       +      +
    608E  VAL      2.9     5.8    -      -       -      -
    609E  GLU*     2.7    56.5    +      -       +      +
    610E  GLU*     2.9    35.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 607 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    525E  ALA*     5.5     7.1    -      -       +      +
    528E  LEU*     5.1     0.5    -      -       -      +
    529E  ARG*     4.2    26.9    -      -       -      +
    604E  VAL*     4.6    12.8    -      -       +      +
    605E  GLY*     3.7     0.6    -      -       -      -
    606E  LYS*     1.3    79.7    -      -       +      +
    608E  VAL*     1.3    56.1    +      -       -      +
    610E  GLU*     3.6    25.3    +      -       -      +
    611E  LEU*     3.2    32.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 608 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    525E  ALA*     6.2     0.2    -      -       +      -
    528E  LEU*     3.6    27.4    -      -       +      -
    600E  MET*     3.6    49.6    -      -       +      +
    601E  MET*     3.7    15.1    -      -       -      +
    604E  VAL*     3.7    18.7    -      -       +      +
    605E  GLY      3.3    15.7    -      -       -      +
    606E  LYS      2.9     0.4    -      -       -      -
    607E  LYS*     1.3    78.5    -      -       -      +
    609E  GLU*     1.3    66.1    +      -       -      +
    610E  GLU      3.3     2.6    +      -       -      -
    611E  LEU*     3.5     6.9    +      -       -      -
    612E  ILE*     3.2    23.0    -      -       +      +
    642E  ILE*     4.8     0.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 609 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    601E  MET*     3.5    28.5    -      -       +      -
    605E  GLY      3.6    14.8    -      -       -      +
    606E  LYS*     2.7    45.4    +      -       +      +
    608E  VAL*     1.3    82.7    -      -       -      +
    610E  GLU*     1.3    59.6    +      -       -      +
    611E  LEU      3.5     0.2    -      -       -      -
    639E  THR*     3.0    30.7    +      -       +      +
    641E  LEU*     3.3    30.8    -      -       -      +
    642E  ILE*     3.1    24.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 610 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    606E  LYS*     2.9    28.2    +      -       +      +
    607E  LYS*     3.6    27.0    +      -       -      +
    609E  GLU*     1.3    81.0    -      -       -      +
    611E  LEU*     1.3    58.4    +      -       -      +
    612E  ILE      4.0     0.2    -      -       -      -
    613E  ALA*     4.5     7.8    -      -       +      +
    614E  ARG*     4.3    20.0    +      -       -      +
    641E  LEU*     3.6    23.1    -      -       +      +
----------------------------------------------------------
 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