Contacts of the helix formed by residues 595 - 600 (chain A) in PDB entry 3I5H


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 595 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    474A  SER*     5.5     0.2    +      -       -      -
    547A  ASP*     4.3     0.2    -      -       -      -
    593A  ILE      3.0     0.8    +      -       -      -
    594A  ALA*     1.3    79.8    -      -       -      +
    596A  TRP*     1.3    57.0    +      -       -      +
    597A  LEU      3.1     3.6    -      -       -      -
    598A  ASP*     2.5    42.9    +      -       -      +
    599A  LYS*     2.9    27.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 596 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    474A  SER*     3.4    14.0    +      -       -      -
    475A  PHE*     3.1    59.9    -      +       +      +
    478A  LEU*     3.5    36.8    -      -       +      -
    532A  ILE*     4.5    10.8    -      -       +      -
    533A  LEU*     5.4     0.4    -      -       +      -
    536A  LEU*     3.7    27.1    -      -       +      -
    550A  PHE*     4.3     2.5    -      +       +      -
    580A  PHE*     4.2    10.1    -      +       -      -
    591A  TYR*     4.2    10.3    -      -       +      -
    592A  SER      2.5    25.6    +      -       -      -
    593A  ILE*     2.7    52.2    +      -       +      +
    595A  GLY*     1.3    76.1    -      -       -      +
    597A  LEU*     1.3    66.4    +      -       -      +
    598A  ASP      3.0     1.0    +      -       -      -
    599A  LYS*     4.6     6.5    -      -       -      +
    600A  ASN*     3.0    26.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 597 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    536A  LEU*     4.3     8.1    -      -       +      +
    539A  GLU*     3.2    30.1    -      -       +      +
    540A  CYS*     3.6    25.9    -      -       -      -
    545A  ALA*     3.4    42.2    -      -       +      +
    546A  SER*     3.7    18.8    -      -       -      +
    547A  ASP*     4.1    13.3    +      -       -      +
    550A  PHE*     4.8     9.0    -      -       +      -
    593A  ILE*     4.8     1.0    +      -       +      +
    595A  GLY      3.1     0.6    -      -       -      -
    596A  TRP*     1.3    78.7    -      -       -      +
    598A  ASP*     1.3    68.3    +      -       -      +
    600A  ASN      4.1     1.7    +      -       -      -
    601A  LYS*     3.9    21.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 598 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    424A  ASN*     4.7     6.9    +      -       -      +
    547A  ASP*     4.9     4.7    -      -       -      +
    595A  GLY*     2.5    26.3    +      -       -      +
    597A  LEU*     1.3    75.7    -      -       -      +
    599A  LYS*     1.3    69.9    +      -       +      +
    600A  ASN      3.0     0.9    +      -       -      -
    601A  LYS*     3.1    19.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 599 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    275A  SER*     5.5     7.0    -      -       -      +
    279A  TYR*     3.8    35.1    +      -       +      -
    281A  GLN*     4.6     1.4    -      -       -      +
    431A  LYS*     3.9     9.6    +      -       -      +
    472A  PHE*     5.8     1.0    -      -       -      -
    474A  SER*     2.7    30.3    +      -       -      -
    475A  PHE*     4.3    20.9    -      -       +      -
    476A  GLU*     2.8    34.6    +      -       -      +
    594A  ALA*     6.3     0.2    -      -       -      -
    595A  GLY*     2.9    28.4    +      -       -      +
    596A  TRP*     4.1     3.1    -      -       -      +
    598A  ASP*     1.3    76.1    -      -       +      +
    600A  ASN*     1.3    62.1    +      -       -      +
    601A  LYS      3.1     7.1    +      -       -      +
    647A  ILE*     3.3    20.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 600 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    475A  PHE*     4.2     8.2    -      -       +      -
    536A  LEU*     3.6    25.7    -      -       +      +
    537A  GLU*     4.5     3.5    -      -       -      -
    540A  CYS*     3.8    14.7    -      -       -      -
    596A  TRP      3.0    17.4    +      -       -      +
    597A  LEU      4.5     0.2    -      -       -      +
    599A  LYS*     1.3    77.1    -      -       -      +
    601A  LYS*     1.3    56.9    +      -       -      +
    646A  THR*     2.9    29.5    -      -       -      +
    647A  ILE*     2.8    34.4    +      -       -      +
    648A  SER*     3.0    25.8    +      -       -      +
----------------------------------------------------------
 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