Contacts of the helix formed by residues 292 - 302 (chain A) in PDB entry 3QV2


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 THR 292 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    290A  GLY      4.4     6.1    -      -       -      +
    291A  LEU*     1.3    76.7    -      -       -      +
    293A  ASP*     1.3    65.8    +      -       -      +
    294A  LYS*     3.8    10.7    +      -       -      +
    295A  GLN*     2.9    36.0    +      -       -      +
    296A  GLN*     3.2    22.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 293 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202A  SER*     5.6     0.5    +      -       -      -
    203A  TYR*     2.7    41.3    +      -       -      -
    271A  PRO*     3.9    10.4    -      -       +      +
    287A  GLN*     4.9     5.9    +      -       -      +
    292A  THR*     1.3    74.4    -      -       -      +
    294A  LYS*     1.3    54.5    +      -       +      +
    296A  GLN*     3.1    16.0    +      -       -      +
    297A  TYR*     2.7    57.2    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 294 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    234A  TYR      4.7     3.6    -      -       -      +
    235A  THR*     3.4    36.6    +      -       -      +
    236A  LYS*     3.3    35.3    -      -       +      +
    292A  THR*     3.2    10.2    +      -       -      +
    293A  ASP*     1.3    78.4    -      -       +      +
    295A  GLN*     1.3    59.0    +      -       +      +
    297A  TYR*     3.2     6.8    +      -       +      +
    298A  GLN*     2.9    48.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 295 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  ILE*     4.3    25.8    -      -       +      +
    290A  GLY      4.0     2.8    -      -       -      +
    291A  LEU*     3.1    29.9    -      -       +      +
    292A  THR*     2.9    38.5    +      -       -      +
    294A  LYS*     1.3    79.8    -      -       +      +
    296A  GLN*     1.3    62.4    +      -       -      +
    298A  GLN*     3.5    16.7    +      -       -      +
    299A  CYS*     3.3    29.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 296 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45A  ILE*     5.1     2.0    -      -       +      -
    271A  PRO*     3.4    23.9    -      -       +      +
    286A  THR*     2.8    54.4    +      -       -      +
    287A  GLN*     3.0    27.9    +      -       -      +
    291A  LEU*     3.0    33.9    +      -       +      +
    292A  THR      3.2    12.5    +      -       -      +
    293A  ASP*     3.1    10.1    +      -       -      +
    295A  GLN*     1.3    73.4    -      -       -      +
    297A  TYR*     1.3    61.0    +      -       -      +
    299A  CYS*     3.3     5.6    +      -       -      +
    300A  LEU*     2.9    37.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 297 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    203A  TYR*     3.4    25.1    -      +       -      -
    231A  THR      4.1     2.4    -      -       -      +
    232A  LYS      3.8     7.6    -      -       -      +
    234A  TYR*     3.7    28.4    -      +       +      +
    235A  THR*     3.5    34.6    -      -       +      +
    268A  TYR*     4.3     0.3    -      -       -      +
    269A  PHE      2.7    28.1    +      -       -      -
    271A  PRO*     3.5    23.3    -      -       +      +
    274A  ILE*     3.7    19.8    -      -       +      +
    293A  ASP*     2.7    45.7    +      -       +      +
    294A  LYS*     3.4     9.4    -      -       +      +
    296A  GLN*     1.3    72.9    -      -       -      +
    298A  GLN*     1.3    52.8    +      -       -      +
    300A  LEU*     3.4     3.9    +      -       -      +
    301A  GLY*     2.7    33.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 298 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    232A  LYS*     3.3    47.2    +      -       +      +
    233A  SER*     5.6     0.7    -      -       -      -
    294A  LYS*     2.9    36.8    +      -       +      +
    295A  GLN*     3.7    14.5    -      -       -      +
    297A  TYR*     1.3    76.6    -      -       -      +
    299A  CYS*     1.3    62.5    +      -       -      +
    301A  GLY      3.4     0.2    +      -       -      -
    302A  ASN*     3.1    30.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 299 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15A  ILE*     3.6    22.7    -      -       +      +
     39A  ASN*     4.9     2.2    -      -       -      -
     41A  ILE*     3.7    24.7    -      -       -      -
     42A  ALA*     4.2    17.0    -      -       -      -
     45A  ILE*     4.0    15.5    -      -       +      -
    286A  THR*     5.8     0.2    -      -       +      -
    295A  GLN      3.3    15.5    +      -       -      +
    296A  GLN      3.3     6.5    +      -       -      +
    298A  GLN*     1.3    78.4    -      -       -      +
    300A  LEU*     1.3    64.5    +      -       +      +
    302A  ASN*     3.1    16.6    +      -       -      +
    303A  SER*     3.1    12.8    +      -       -      -
    323A  SAH      4.6     2.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 300 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15A  ILE*     4.0    13.0    -      -       +      -
    271A  PRO*     3.2    42.8    -      -       +      +
    274A  ILE*     4.1    21.3    -      -       +      -
    275A  LYS*     4.0    24.0    -      -       +      +
    278A  HIS*     3.3    12.6    -      -       -      +
    280A  PHE*     4.9     3.8    -      -       +      -
    286A  THR*     3.7    28.5    -      -       +      +
    296A  GLN      2.9    21.9    +      -       -      +
    297A  TYR*     3.8     5.6    -      -       -      +
    299A  CYS*     1.3    75.1    -      -       -      +
    301A  GLY*     1.3    62.0    +      -       -      +
    303A  SER*     2.6    27.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 301 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    165A  ARG*     2.8    20.4    +      -       -      -
    167A  ARG*     4.8     1.4    +      -       -      -
    230A  PHE*     3.5    16.4    -      -       -      +
    231A  THR*     3.4    31.0    -      -       -      -
    232A  LYS      3.7     3.7    +      -       -      -
    274A  ILE*     6.1     0.4    -      -       -      +
    297A  TYR      2.7    17.4    +      -       -      -
    298A  GLN      3.8     1.1    -      -       -      -
    299A  CYS      3.3     0.2    -      -       -      -
    300A  LEU*     1.3    73.9    -      -       -      +
    302A  ASN*     1.3    61.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 302 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81A  CYS*     5.5     6.6    -      -       -      -
    165A  ARG*     4.0     0.9    -      -       -      +
    232A  LYS*     3.2    42.6    +      -       -      +
    298A  GLN      3.1    19.3    +      -       -      +
    299A  CYS*     3.1     9.5    +      -       -      +
    301A  GLY*     1.3    77.1    -      -       -      +
    303A  SER*     1.3    65.9    +      -       -      +
    304A  VAL*     5.1     0.2    -      -       -      +
    323A  SAH      3.7    35.6    +      -       +      +
----------------------------------------------------------
 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