Contacts of the helix formed by residues 530 - 539 (chain B) in PDB entry 3V4R


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 SER 530 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    525B  GLU*     4.8     3.6    -      -       -      -
    526B  GLY      3.5     3.9    +      -       -      -
    527B  PHE*     2.7    27.9    +      -       -      -
    528B  LEU      3.6     0.4    -      -       -      -
    529B  ARG*     1.4    81.2    -      -       -      +
    531B  GLU*     1.4    67.2    +      -       -      +
    532B  ARG*     4.0     5.9    +      -       -      +
    533B  SER*     3.3    15.1    +      -       -      -
    534B  LEU*     3.0    21.2    +      -       -      +
    559B  SER*     4.0     6.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 531 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    530B  SER*     1.4    72.1    -      -       -      +
    532B  ARG*     1.3    71.1    +      -       -      +
    534B  LEU*     3.4     3.6    +      -       -      +
    535B  ILE*     3.2    28.7    +      -       +      +
    559B  SER*     3.6    30.6    +      -       -      +
    562B  ILE*     4.1    31.2    -      -       +      -
    563B  ALA*     4.2     0.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 532 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    341B  HIS*     3.7    24.5    -      -       +      -
    395B  THR*     3.2    40.2    +      -       -      +
    396B  PRO      3.0    30.1    +      -       -      -
    397B  GLY*     3.6    13.5    -      -       -      -
    398B  PRO*     3.6    19.3    -      -       -      +
    401B  ILE*     4.0     8.7    -      -       -      +
    530B  SER*     3.3     6.8    +      -       -      +
    531B  GLU*     1.3    81.3    -      -       -      +
    533B  SER*     1.3    66.2    +      -       -      +
    535B  ILE*     2.9    16.2    +      -       +      +
    536B  GLN*     3.0    13.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 533 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    505B  LEU*     3.9    15.5    -      -       -      +
    527B  PHE*     3.0    40.3    +      -       -      -
    528B  LEU*     3.6    22.8    -      -       -      +
    530B  SER*     3.2    14.7    +      -       -      -
    532B  ARG*     1.3    75.9    -      -       -      +
    534B  LEU*     1.4    53.9    +      -       -      +
    536B  GLN*     3.2     6.4    +      -       -      +
    537B  THR*     2.7    36.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 534 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    519B  ILE*     4.1    33.2    -      -       +      -
    522B  ALA      4.6     3.4    -      -       -      +
    528B  LEU      4.3     3.1    -      -       -      +
    529B  ARG*     3.5    35.9    -      -       -      +
    530B  SER      3.0    15.9    +      -       -      +
    531B  GLU      3.6     4.0    -      -       -      +
    533B  SER*     1.4    76.0    -      -       -      +
    535B  ILE*     1.3    57.1    +      -       -      +
    537B  THR*     3.1     6.6    +      -       -      +
    538B  ILE*     2.9    38.6    +      -       +      +
    551B  MET*     4.7     7.2    -      -       +      -
    559B  SER      4.1     4.0    -      -       -      +
    560B  MET*     3.9    41.5    -      -       +      +
    563B  ALA*     3.9    10.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 535 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    394B  ALA*     5.9     1.3    -      -       +      -
    395B  THR*     3.5    31.2    -      -       +      -
    531B  GLU*     3.2    20.3    +      -       +      +
    532B  ARG*     2.9     9.1    +      -       +      +
    534B  LEU*     1.3    73.4    -      -       -      +
    536B  GLN*     1.4    61.0    +      -       -      +
    538B  ILE*     3.5    10.1    +      -       +      +
    539B  GLY*     3.2    17.8    +      -       -      -
    562B  ILE*     4.8     7.9    -      -       +      -
    563B  ALA*     3.8    29.2    -      -       -      +
    566B  GLU*     4.2    20.4    -      -       +      -
    567B  THR*     5.2     6.3    -      -       -      +
    570B  ARG*     4.2    19.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 536 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    341B  HIS*     5.8     5.4    -      -       -      +
    395B  THR*     5.2     4.2    -      -       +      +
    505B  LEU*     3.6    24.0    -      -       +      -
    532B  ARG      3.0    11.5    +      -       -      +
    533B  SER*     3.6     5.4    -      -       -      +
    535B  ILE*     1.4    72.2    -      -       -      +
    537B  THR*     1.4    65.5    +      -       -      +
    539B  GLY*     3.2    14.5    +      -       -      -
    540B  ARG*     3.6    15.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 537 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    451B  THR*     4.0    13.9    -      -       +      -
    504B  LEU*     5.0    11.2    -      -       +      +
    505B  LEU*     3.5    16.4    -      -       -      +
    517B  VAL*     3.9    19.4    -      -       +      +
    519B  ILE*     3.9    26.5    -      -       +      -
    528B  LEU*     4.7     6.2    +      -       -      +
    529B  ARG*     5.5     2.6    +      -       -      +
    533B  SER      2.7    22.0    +      -       -      -
    534B  LEU*     3.1    11.6    +      -       +      +
    536B  GLN*     1.4    72.6    -      -       -      +
    538B  ILE*     1.4    64.2    +      -       -      +
    540B  ARG*     3.2    23.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 538 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    419B  ASP*     5.3     2.7    -      -       -      +
    420B  PRO*     3.4    35.1    -      -       +      +
    422B  ILE*     3.8    22.0    -      -       +      -
    519B  ILE*     4.6     2.7    -      -       +      -
    534B  LEU      2.9    27.4    +      -       -      +
    535B  ILE*     3.6     9.0    -      -       +      +
    537B  THR*     1.4    74.4    -      -       -      +
    539B  GLY*     1.3    57.3    +      -       -      +
    540B  ARG      3.0     6.3    +      -       -      -
    541B  ALA*     3.1    15.4    +      -       -      +
    549B  VAL*     4.0    20.9    -      -       +      -
    551B  MET*     3.8    22.7    -      -       +      -
    563B  ALA*     4.0    13.2    -      -       +      -
    567B  THR*     4.0    24.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 539 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41B  THR*     4.7    13.3    +      -       -      -
    413B  ARG*     6.1     0.4    -      -       -      -
    419B  ASP*     4.9     6.1    -      -       -      -
    510B  ASP*     4.2     9.5    -      -       -      +
    535B  ILE      3.2    13.7    +      -       -      -
    536B  GLN*     3.2     8.8    +      -       -      -
    538B  ILE*     1.3    76.1    -      -       -      +
    540B  ARG*     1.3    59.9    +      -       -      +
    541B  ALA      3.1     2.2    +      -       -      -
    542B  ALA*     3.3    23.3    +      -       -      +
    543B  ARG*     4.6     1.9    +      -       -      +
----------------------------------------------------------
 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