Contacts of the helix formed by residues 531 - 544 (chain C) in PDB entry 6O0T


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 LEU 531 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    507B  SER      5.1     2.5    -      -       -      +
    508B  CYS*     4.0    19.1    -      -       +      -
    525B  GLU      5.6     0.2    -      -       -      +
    526B  ASP*     3.6    33.0    -      -       +      +
    501C  TYR*     4.4     3.9    +      -       -      +
    529C  ILE*     3.5     1.6    -      -       -      +
    530C  HIS*     1.3    77.1    -      -       +      +
    532C  GLY*     1.3    65.5    +      -       -      +
    533C  VAL*     4.3     2.0    -      -       +      -
    534C  HIS*     3.2    53.4    +      -       +      +
    535C  ARG*     3.2    15.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 532 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    522B  GLN*     3.7    11.2    +      -       -      -
    525B  GLU*     5.8     2.4    +      -       -      -
    526B  ASP*     3.1    18.4    +      -       -      -
    530C  HIS      3.3     4.0    +      -       -      -
    531C  LEU*     1.3    69.6    -      -       -      +
    533C  VAL*     1.3    65.0    +      -       -      +
    535C  ARG*     3.2    27.0    +      -       -      +
    536C  ALA*     3.0    23.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 533 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    508B  CYS*     3.6    39.0    -      -       +      +
    510B  LEU*     4.3    29.8    -      -       +      -
    518B  VAL*     4.8     2.5    -      -       +      -
    522B  GLN*     3.5    37.7    -      -       +      +
    526B  ASP*     3.1    19.0    +      -       +      +
    527B  CYS*     5.3     0.7    -      -       -      -
    531C  LEU*     4.3     3.8    -      -       +      -
    532C  GLY*     1.3    71.3    -      -       -      +
    534C  HIS*     1.3    67.8    +      -       +      +
    536C  ALA*     3.4     3.0    +      -       -      +
    537C  ARG*     3.1    23.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 534 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    507B  SER      5.5     1.8    -      -       -      -
    508B  CYS*     3.3    32.8    +      -       -      -
    509B  GLY*     4.9     1.4    -      -       -      -
    497C  ARG*     5.2     9.5    -      -       +      +
    498C  PHE*     3.4    33.3    -      +       +      -
    500C  GLN*     4.5    10.3    -      -       -      -
    501C  TYR*     2.6    33.3    +      +       +      +
    529C  ILE*     3.8    13.7    -      -       +      -
    531C  LEU*     3.2    29.2    +      -       +      +
    532C  GLY      3.2     0.6    -      -       -      -
    533C  VAL*     1.3    81.7    -      -       +      +
    535C  ARG*     1.3    64.3    +      -       -      +
    537C  ARG*     3.2     2.3    +      -       -      +
    538C  ILE*     3.0    29.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 535 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    521B  GLN*     5.5     6.1    -      -       -      +
    525B  GLU*     5.3     5.5    +      -       -      -
    520C  GLU*     3.7    37.5    +      -       +      +
    523C  MSE      4.1    14.9    -      -       +      +
    524C  LEU*     3.6    31.9    -      -       -      +
    529C  ILE*     3.1    41.0    +      -       +      +
    530C  HIS      3.0    27.9    +      -       -      -
    531C  LEU      3.2     2.3    +      -       -      +
    532C  GLY*     3.2    23.4    +      -       -      +
    534C  HIS*     1.3    76.5    -      -       -      +
    536C  ALA*     1.3    58.1    +      -       -      +
    538C  ILE*     3.5     1.8    +      -       -      +
    539C  LEU*     2.9    35.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 536 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    517B  ARG*     5.1     2.9    +      -       -      +
    522B  GLN*     3.5    29.2    -      -       -      +
    532C  GLY      3.0     8.4    +      -       -      +
    533C  VAL*     3.8     4.5    -      -       -      +
    535C  ARG*     1.3    75.7    -      -       -      +
    537C  ARG*     1.3    61.6    +      -       -      +
    539C  LEU*     3.6     8.6    +      -       -      +
    540C  THR*     3.1    29.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 537 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    509B  GLY      5.9     0.4    -      -       -      -
    514B  LEU*     3.1    35.2    -      -       -      +
    517B  ARG*     3.0    41.6    +      -       -      +
    494C  LEU*     3.2    47.7    +      -       +      +
    495C  ASP*     4.4     6.8    +      -       -      +
    498C  PHE*     3.4    29.0    -      -       +      -
    533C  VAL      3.1    16.8    +      -       -      +
    534C  HIS      3.2     4.0    +      -       -      +
    536C  ALA*     1.3    75.2    -      -       -      +
    538C  ILE*     1.3    64.1    +      -       -      +
    540C  THR*     3.6     5.2    +      -       -      -
    541C  ALA*     3.2    18.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 538 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    490C  TRP*     4.0    18.5    -      -       +      -
    491C  LEU*     4.1    17.3    -      -       +      -
    494C  LEU*     4.0     8.5    -      -       +      -
    498C  PHE*     4.1    20.4    -      -       +      -
    501C  TYR*     4.0    20.4    -      -       +      -
    505C  MSE      5.2     4.3    -      -       -      -
    515C  LEU*     5.3     4.3    -      -       +      -
    523C  MSE      3.7    23.6    -      -       +      -
    529C  ILE*     3.7    26.5    -      -       +      -
    534C  HIS      3.0    20.0    +      -       -      +
    535C  ARG      4.1     2.7    -      -       -      +
    537C  ARG*     1.3    73.6    -      -       -      +
    539C  LEU*     1.3    67.1    +      -       -      +
    541C  ALA*     3.4     1.9    +      -       -      +
    542C  ALA*     2.9    23.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 539 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    518C  VAL      3.4    25.6    -      -       -      +
    519C  SER*     4.6     0.4    -      -       -      -
    520C  GLU*     3.5    39.9    -      -       +      +
    523C  MSE      3.6    21.3    -      -       +      -
    535C  ARG      2.9    22.5    +      -       -      +
    536C  ALA*     3.8     7.4    -      -       -      +
    538C  ILE*     1.3    77.6    -      -       -      +
    540C  THR*     1.3    64.1    +      -       -      +
    542C  ALA*     3.2     6.3    +      -       +      +
    543C  ARG*     3.2    24.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 540 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    517B  ARG*     3.7    27.5    +      -       -      +
    536C  ALA      3.1    17.3    +      -       -      -
    537C  ARG      3.9     2.0    -      -       -      -
    538C  ILE      3.3     0.2    -      -       -      -
    539C  LEU*     1.3    77.1    -      -       -      +
    541C  ALA*     1.3    62.8    +      -       -      +
    543C  ARG*     3.3    29.6    +      -       -      +
    544C  GLU*     3.3    39.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 541 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    490C  TRP*     3.8    17.2    -      -       +      -
    494C  LEU*     3.7    31.2    -      -       +      -
    537C  ARG      3.2    15.5    +      -       -      +
    539C  LEU      3.3     0.2    -      -       -      -
    540C  THR*     1.3    80.4    -      -       -      +
    542C  ALA*     1.3    62.5    +      -       -      +
    543C  ARG      3.4     0.7    +      -       -      -
    544C  GLU*     3.5    19.5    +      -       -      +
    545C  MSE      3.6    12.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 542 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    490C  TRP*     3.9    13.2    -      -       +      -
    515C  LEU*     3.6    37.0    -      -       +      +
    516C  HIS*     3.7    19.5    -      -       -      +
    523C  MSE      5.2     4.3    -      -       +      -
    538C  ILE      2.9    18.2    +      -       -      +
    539C  LEU*     3.2     8.0    +      -       +      +
    541C  ALA*     1.3    76.9    -      -       -      +
    543C  ARG*     1.3    61.2    +      -       -      +
    545C  MSE      3.6    17.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 543 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    516C  HIS*     5.1     9.0    -      -       -      +
    539C  LEU      3.2    14.9    +      -       -      +
    540C  THR*     3.9    24.6    +      -       -      +
    541C  ALA      3.2     0.2    -      -       -      -
    542C  ALA*     1.3    75.4    -      -       -      +
    544C  GLU*     1.3    60.6    +      -       +      +
    545C  MSE      3.1    15.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 544 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    540C  THR*     3.3    37.1    +      -       +      +
    541C  ALA*     3.5    11.1    +      -       -      +
    542C  ALA      3.4     0.8    -      -       -      -
    543C  ARG*     1.3    80.4    -      -       +      +
    545C  MSE      1.3    62.6    +      -       -      +
----------------------------------------------------------
 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