Contacts of the helix formed by residues 530 - 542 (chain C) in PDB entry 6PUO


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 CYS 530 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    526C  LEU*     4.0    13.0    -      -       -      -
    527C  ASP*     3.4    22.7    +      -       -      +
    528C  PRO      4.5     2.1    -      -       -      +
    529C  SER*     1.3    83.6    +      -       -      +
    531C  LEU*     1.3    63.1    +      -       -      +
    532C  PHE*     3.6    13.0    -      -       -      +
    533C  HIS*     3.2    38.0    +      -       -      +
    534C  SER*     3.7     8.8    +      -       -      -
    631C  VAL      4.5    12.3    -      -       -      +
    632C  GLN*     4.8     8.3    -      -       -      +
    666C  GLU*     6.0     0.7    -      -       -      -
    675C  MET*     6.2     2.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 531 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    529C  SER      3.9     0.8    +      -       -      -
    530C  CYS*     1.3    71.9    -      -       -      +
    532C  PHE*     1.3    64.9    -      -       -      +
    534C  SER*     2.4    33.0    +      -       -      +
    535C  LYS*     3.0    25.7    +      -       +      +
    662C  LEU*     4.1    31.9    -      -       +      +
    665C  GLU*     3.4    42.6    -      -       +      +
    666C  GLU*     4.1    22.5    +      -       +      +
    675C  MET*     6.0     3.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 532 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    523C  TYR*     4.3    17.3    -      +       -      -
    526C  LEU*     3.6    20.0    -      -       +      -
    530C  CYS*     3.3     9.8    -      -       -      +
    531C  LEU*     1.3    79.0    -      -       -      +
    533C  HIS*     1.3    56.1    +      -       -      +
    535C  LYS*     3.4    10.4    +      -       +      +
    536C  LEU*     2.9    41.9    +      -       +      +
    561C  VAL*     4.3    12.1    -      -       +      -
    564C  VAL*     3.6    36.8    -      -       +      -
    565C  LEU*     4.7    10.5    -      -       +      -
    568C  LEU*     4.4    25.1    -      -       +      -
    627C  ILE*     6.3     0.7    -      -       +      -
    631C  VAL*     3.9    41.5    +      -       +      +
    662C  LEU*     5.1     8.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 533 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    524C  GLU      5.9     1.3    +      -       -      -
    526C  LEU*     4.6    23.0    +      -       +      -
    527C  ASP      4.0     7.2    -      -       -      +
    528C  PRO*     3.5    35.7    +      -       +      +
    530C  CYS*     3.2    26.2    -      -       -      +
    531C  LEU      3.2     0.6    -      -       -      -
    532C  PHE*     1.3    77.4    -      -       -      +
    534C  SER*     1.3    57.2    +      -       -      +
    536C  LEU*     3.3    11.2    +      -       +      +
    537C  GLN*     2.9    58.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 534 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    530C  CYS      3.7     5.8    +      -       -      -
    531C  LEU*     2.4    37.0    +      -       -      +
    533C  HIS*     1.3    78.8    +      -       -      +
    535C  LYS*     1.3    59.7    +      -       -      +
    537C  GLN*     3.3     8.5    +      -       -      +
    538C  LYS*     3.0    29.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 535 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    531C  LEU*     3.0    37.3    +      -       +      +
    532C  PHE*     3.9    12.3    -      -       +      +
    534C  SER*     1.3    80.1    +      -       -      +
    536C  LEU*     1.3    57.8    +      -       -      +
    538C  LYS*     3.3    12.4    +      -       -      +
    539C  VAL*     3.0    30.5    +      -       -      +
    564C  VAL*     4.2    23.0    -      -       +      +
    567C  GLU*     4.2    19.9    +      -       -      -
    568C  LEU*     4.6    15.5    -      -       -      -
    662C  LEU*     4.8     5.8    -      -       +      -
    665C  GLU*     3.4    29.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 536 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    523C  TYR*     4.5    14.8    -      -       +      +
    526C  LEU*     5.1     6.5    -      -       +      -
    532C  PHE*     2.9    34.4    +      -       +      +
    533C  HIS*     3.7    12.8    -      -       +      +
    535C  LYS*     1.3    74.6    -      -       -      +
    537C  GLN*     1.3    64.6    +      -       -      +
    539C  VAL*     3.3    17.8    -      -       +      +
    540C  LEU*     2.9    32.6    +      -       +      +
    556C  LEU*     4.2    30.1    -      -       +      -
    560C  HIS*     4.3    13.9    -      -       +      +
    561C  VAL*     4.5     9.2    -      -       +      +
    564C  VAL*     4.3    16.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 537 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    533C  HIS*     2.9    50.7    +      -       +      +
    534C  SER*     3.3     8.7    +      -       -      +
    536C  LEU*     1.3    82.5    -      -       -      +
    538C  LYS*     1.3    57.4    +      -       -      +
    540C  LEU*     3.3    19.7    +      -       -      +
    541C  VAL*     3.0    32.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 538 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    534C  SER      3.0    15.3    +      -       -      +
    535C  LYS*     3.6    14.1    -      -       -      +
    536C  LEU      3.3     0.2    -      -       -      -
    537C  GLN*     1.3    77.4    -      -       -      +
    539C  VAL*     1.3    57.4    +      -       -      +
    541C  VAL*     3.3     8.6    -      -       +      +
    542C  GLU*     2.9    45.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 539 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    535C  LYS      3.0    16.9    +      -       -      +
    536C  LEU*     3.3    31.6    -      -       +      +
    538C  LYS*     1.3    77.0    -      -       -      +
    540C  LEU*     1.3    62.0    +      -       -      +
    542C  GLU*     3.6     6.5    +      -       +      -
    543C  ASP*     3.4    20.4    +      -       -      +
    560C  HIS*     4.4    13.2    +      -       +      +
    563C  GLN*     3.5    40.6    -      -       +      +
    564C  VAL*     4.3    17.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 540 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    536C  LEU*     2.9    20.9    +      -       +      +
    537C  GLN*     3.7    23.3    -      -       -      +
    538C  LYS      3.2     0.2    -      -       -      -
    539C  VAL*     1.3    80.3    -      -       +      +
    541C  VAL*     1.3    60.3    +      -       -      +
    542C  GLU      3.5     0.2    +      -       -      -
    543C  ASP*     3.5    15.8    +      -       +      +
    546C  ARG*     5.1     8.4    -      -       +      +
    547C  PRO*     5.5     1.0    -      -       -      +
    554C  PRO*     4.3    21.6    -      -       +      +
    555C  ARG      3.5    26.0    -      -       -      +
    556C  LEU*     4.3    27.8    -      -       +      +
    560C  HIS*     3.6    26.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 541 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    537C  GLN      3.0    16.7    +      -       -      +
    538C  LYS*     3.3    20.0    -      -       +      +
    540C  LEU*     1.3    77.0    -      -       -      +
    542C  GLU*     1.3    74.0    +      -       -      +
    543C  ASP      3.2     7.0    +      -       -      +
    547C  PRO*     4.8    10.5    -      -       +      +
    554C  PRO*     6.0     2.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 542 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    538C  LYS*     2.9    31.6    +      -       +      +
    539C  VAL*     4.0     8.7    -      -       +      +
    540C  LEU      3.3     0.6    -      -       -      -
    541C  VAL*     1.3    88.8    -      -       -      +
    543C  ASP*     1.3    64.4    +      -       -      +
    544C  PRO*     3.6     6.1    -      -       -      +
----------------------------------------------------------
 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