Contacts of the helix formed by residues 465 - 483 (chain A) in PDB entry 1QI9


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 PHE 465 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    291A  LEU*     3.6    26.5    -      -       +      +
    294A  LEU*     4.0    26.0    -      -       +      -
    295A  ASP      5.8     0.4    -      -       -      -
    296A  ALA*     4.0    24.7    -      -       +      -
    433A  ILE*     5.3     1.3    -      -       +      -
    437A  ARG*     3.5    20.6    -      -       +      +
    438A  GLY*     3.4     8.2    +      -       -      +
    440A  ASP*     3.0    33.5    +      -       +      -
    441A  CYS      4.2     5.8    -      -       -      -
    442A  TYR*     3.7    28.3    -      +       -      -
    443A  PRO*     3.8    20.2    -      -       +      -
    463A  LEU      3.7     1.0    +      -       -      -
    464A  THR*     1.3    70.3    -      -       -      +
    466A  GLU*     1.3    58.7    +      -       -      +
    468A  GLU*     3.2     6.3    +      -       +      +
    469A  ILE*     3.0    37.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 466 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    200A  VAL*     4.2    10.6    -      -       +      +
    430A  LYS*     4.0    19.5    -      -       +      +
    435A  LEU*     4.3    10.2    -      -       -      +
    438A  GLY*     2.9    36.8    +      -       -      +
    439A  GLY*     4.1     5.6    +      -       -      -
    464A  THR*     3.4     9.0    +      -       -      +
    465A  PHE*     1.3    76.0    -      -       -      +
    467A  GLY*     1.3    59.8    +      -       -      +
    469A  ILE*     3.4    12.1    +      -       -      +
    470A  ASN*     2.9    36.6    +      -       -      +
    522A  ARG*     2.7    50.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 467 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    200A  VAL*     3.6    20.8    -      -       -      +
    201A  GLY*     3.9    14.1    -      -       -      -
    464A  THR*     2.9    21.3    +      -       -      -
    466A  GLU*     1.3    75.8    -      -       -      +
    468A  GLU*     1.3    65.6    +      -       -      +
    470A  ASN*     3.3     1.7    +      -       -      +
    471A  LYS*     2.7    30.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 468 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201A  GLY      4.5     1.7    -      -       -      +
    204A  THR      4.5     0.2    -      -       -      +
    208A  ILE      4.4     0.2    -      -       -      +
    209A  SER*     2.8    32.7    +      -       -      +
    210A  GLN*     2.8    42.5    +      -       +      +
    211A  LEU*     3.9     6.0    -      -       +      +
    442A  TYR*     4.3    18.2    -      -       +      -
    463A  LEU*     3.6    33.5    -      -       +      +
    464A  THR      2.8    18.0    +      -       -      +
    465A  PHE      3.2     3.6    +      -       -      +
    467A  GLY*     1.3    80.3    -      -       -      +
    469A  ILE*     1.3    54.2    +      -       -      +
    471A  LYS*     2.8    32.8    +      -       -      -
    472A  LEU*     3.0    14.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 469 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    211A  LEU*     4.0    11.2    -      -       +      -
    291A  LEU*     3.8    33.0    -      -       +      -
    426A  ALA*     3.7    37.7    -      -       +      +
    429A  LEU*     4.1    14.8    -      -       +      -
    430A  LYS*     4.1    18.6    -      -       +      -
    433A  ILE*     3.9    19.5    -      -       +      -
    438A  GLY*     6.4     0.2    -      -       -      -
    465A  PHE*     3.0    27.0    +      -       +      +
    466A  GLU*     3.6     4.5    -      -       -      +
    468A  GLU*     1.3    72.5    -      -       -      +
    470A  ASN*     1.4    69.8    +      -       -      +
    472A  LEU*     3.2     3.9    +      -       -      +
    473A  ALA*     3.1    20.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 470 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199A  PHE*     5.1     1.3    -      -       +      -
    200A  VAL*     2.9    47.9    +      -       -      +
    202A  VAL*     4.3     7.4    -      -       +      -
    430A  LYS*     2.9    35.8    +      -       -      +
    466A  GLU*     2.9    22.2    +      -       -      +
    467A  GLY      3.6     0.2    -      -       -      +
    469A  ILE*     1.4    78.4    -      -       -      +
    471A  LYS*     1.3    62.6    +      -       -      +
    473A  ALA*     3.1     4.4    +      -       -      +
    474A  VAL*     3.0    25.5    +      -       -      +
    522A  ARG*     5.3     0.6    +      -       -      +
    523A  LEU      4.9     1.0    +      -       -      -
    524A  PHE*     3.3    29.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 471 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201A  GLY      3.4    19.1    -      -       -      -
    202A  VAL*     3.7    29.7    -      -       +      +
    204A  THR      2.7    25.0    +      -       -      -
    205A  GLY      4.1     1.6    -      -       -      -
    206A  PRO*     2.9    30.2    +      -       -      +
    207A  PHE      3.5    17.3    -      -       -      +
    208A  ILE      3.7     0.6    +      -       -      -
    209A  SER*     3.5    22.7    -      -       -      +
    210A  GLN*     5.9     0.2    -      -       -      +
    463A  LEU*     4.6     0.6    -      -       -      +
    467A  GLY      2.7    19.8    +      -       -      +
    468A  GLU*     2.8    29.0    +      -       -      +
    469A  ILE      3.3     0.2    -      -       -      -
    470A  ASN*     1.3    71.6    -      -       -      +
    472A  LEU*     1.3    57.4    +      -       -      +
    474A  VAL*     3.2     1.7    +      -       -      +
    475A  ASN*     2.7    36.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 472 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    209A  SER*     3.5    19.2    -      -       -      +
    211A  LEU*     4.0    25.1    -      -       +      -
    212A  LEU*     3.4    38.8    -      -       +      -
    283A  GLU*     3.7    35.9    -      -       +      +
    284A  ALA*     4.1    10.8    -      -       +      +
    287A  GLY*     4.5     2.0    -      -       -      -
    422A  ASN*     5.2     2.5    -      -       -      +
    429A  LEU*     5.8     3.8    -      -       +      -
    468A  GLU      3.0     9.9    +      -       -      +
    469A  ILE*     3.6     8.1    -      -       -      +
    470A  ASN      3.2     0.2    -      -       -      -
    471A  LYS*     1.3    74.2    -      -       -      +
    473A  ALA*     1.3    65.8    +      -       -      +
    475A  ASN*     3.2     1.9    +      -       -      +
    476A  VAL*     3.1    25.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 473 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    422A  ASN*     3.6    34.9    -      -       +      +
    426A  ALA*     4.1     9.6    -      -       +      -
    469A  ILE      3.1    13.2    +      -       -      +
    470A  ASN      3.6     7.0    -      -       -      +
    472A  LEU*     1.3    80.8    -      -       -      +
    474A  VAL*     1.3    57.5    +      -       +      +
    476A  VAL*     3.5     2.4    +      -       -      +
    477A  ALA*     3.1    26.2    +      -       -      +
    495A  LEU*     3.8    19.6    -      -       +      +
    524A  PHE*     4.4     4.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 474 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    196A  ARG*     5.8     0.2    -      -       -      -
    197A  ALA*     4.5     5.6    -      -       +      -
    199A  PHE*     4.1    15.5    -      -       +      -
    202A  VAL*     3.8    35.9    -      -       +      -
    470A  ASN      3.0    16.2    +      -       -      +
    471A  LYS      4.0     2.7    -      -       -      +
    473A  ALA*     1.3    73.8    -      -       +      +
    475A  ASN*     1.3    62.5    +      -       -      +
    477A  ALA*     4.4     0.7    -      -       -      -
    478A  PHE*     2.9    63.6    +      -       +      +
    492A  ILE*     5.3     0.4    -      -       +      -
    495A  LEU*     3.8    22.7    -      -       +      -
    524A  PHE*     5.4     1.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 475 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202A  VAL*     6.1     1.2    -      -       -      +
    207A  PHE*     3.1    37.6    +      -       -      -
    208A  ILE*     3.4     9.3    -      -       -      -
    209A  SER*     2.7    34.1    +      -       -      -
    212A  LEU*     3.6    17.1    -      -       +      +
    271A  LEU*     3.5    17.5    -      -       +      +
    471A  LYS*     2.7    28.7    +      -       -      +
    472A  LEU      3.2     5.6    +      -       -      +
    474A  VAL*     1.3    73.6    -      -       -      +
    476A  VAL*     1.3    57.1    +      -       -      +
    478A  PHE*     3.6     2.0    -      -       -      -
    479A  GLY*     2.7    29.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 476 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    212A  LEU*     5.5     1.6    -      -       +      -
    271A  LEU*     5.1     1.6    -      -       +      -
    274A  VAL*     5.8     1.1    -      -       +      -
    275A  THR*     3.3    21.9    -      -       +      +
    278A  ASP*     3.9     0.4    -      -       -      +
    283A  GLU*     3.8    39.7    -      -       +      +
    418A  HIS*     3.8    25.4    -      -       +      +
    422A  ASN*     3.5    40.8    -      -       -      +
    472A  LEU*     3.1    18.5    +      -       +      +
    473A  ALA      3.9     2.2    -      -       -      +
    474A  VAL      3.3     0.2    -      -       -      -
    475A  ASN*     1.3    75.5    -      -       +      +
    477A  ALA*     1.3    67.1    +      -       -      +
    479A  GLY      3.3     1.9    +      -       -      -
    480A  ARG*     3.4     6.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 477 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    416A  SER*     5.2     2.2    +      -       -      -
    419A  ALA*     3.8    35.4    -      -       +      +
    473A  ALA      3.1    15.5    +      -       -      +
    474A  VAL      3.3     3.8    +      -       -      +
    476A  VAL*     1.3    80.0    -      -       -      +
    478A  PHE*     1.3    64.7    +      -       +      +
    480A  ARG*     3.2    18.2    +      -       -      +
    481A  GLN*     3.5    14.9    +      -       -      +
    486A  HIS*     5.5     0.7    -      -       -      +
    491A  GLY*     4.1    12.8    -      -       -      -
    495A  LEU*     4.2    11.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 478 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144A  MET*     4.3    10.8    -      -       +      -
    195A  PHE*     3.2    36.1    -      -       +      -
    196A  ARG      3.9     7.0    -      -       -      -
    197A  ALA*     4.1    11.2    -      -       +      -
    207A  PHE*     5.2     3.1    -      +       +      -
    271A  LEU*     5.3     0.9    -      -       +      -
    474A  VAL*     2.9    35.5    +      -       +      +
    475A  ASN*     4.2     2.7    -      -       -      +
    477A  ALA*     1.3    75.1    -      -       +      +
    479A  GLY*     1.3    58.7    +      -       -      +
    481A  GLN*     3.1    35.6    +      -       -      +
    482A  MET*     2.9    40.7    +      -       +      +
    488A  ARG*     3.7    33.9    -      -       +      -
    492A  ILE*     4.0    24.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 479 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    271A  LEU*     3.8    18.1    -      -       -      +
    272A  ALA*     3.3    14.0    -      -       -      +
    275A  THR*     3.4    19.9    +      -       -      -
    475A  ASN      2.7    22.3    +      -       -      -
    476A  VAL      3.3     0.2    +      -       -      -
    477A  ALA      3.2     0.4    -      -       -      -
    478A  PHE*     1.3    73.2    -      -       -      +
    480A  ARG*     1.3    59.0    +      -       -      +
    482A  MET*     3.3     5.9    +      -       -      -
    483A  LEU*     3.1    16.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 480 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    275A  THR*     3.0    38.0    +      -       -      -
    276A  PHE*     4.2     8.5    -      -       -      +
    404A  ILE*     5.8     0.2    -      -       -      +
    409A  PRO*     3.6    15.2    -      -       -      +
    416A  SER*     4.6     0.7    -      -       -      +
    418A  HIS*     3.2    36.9    +      -       +      -
    476A  VAL      3.4    14.6    +      -       -      +
    477A  ALA      3.2     7.7    +      -       -      +
    479A  GLY*     1.3    74.0    -      -       -      +
    481A  GLN*     1.3    66.9    +      -       -      +
    483A  LEU*     3.2    24.7    +      -       -      +
    485A  ILE*     3.1    41.6    +      -       +      +
    486A  HIS*     3.8    17.5    -      -       +      -
    600A  VO4      3.1    39.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 481 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    140A  GLU*     5.1     1.4    +      -       -      -
    141A  VAL*     3.9    13.6    -      -       +      +
    144A  MET*     3.7    25.3    -      -       -      +
    148A  ARG*     5.1     0.2    +      -       -      -
    477A  ALA      3.5     5.7    +      -       -      +
    478A  PHE*     3.1    46.7    +      -       -      +
    480A  ARG*     1.3    79.4    -      -       -      +
    482A  MET*     1.3    54.3    +      -       -      +
    484A  GLY*     3.0    21.0    +      -       -      -
    486A  HIS*     3.3    36.2    -      -       +      +
    487A  TYR*     3.3    17.9    -      -       -      +
    488A  ARG*     3.4    18.7    -      -       -      +
    491A  GLY*     3.5    17.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 482 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144A  MET*     3.8    36.8    -      -       +      -
    145A  ALA*     5.1     0.2    -      -       -      -
    148A  ARG*     2.9    30.9    +      -       +      +
    152A  PHE*     4.5     3.8    -      -       +      -
    195A  PHE*     4.4     8.7    -      -       +      -
    207A  PHE*     3.6    34.5    -      -       +      -
    268A  ALA*     3.4    45.5    -      -       +      +
    271A  LEU*     3.8    20.4    -      -       +      -
    272A  ALA*     3.8     5.5    -      -       -      +
    478A  PHE*     2.9    23.1    +      -       +      +
    479A  GLY*     3.6     7.0    -      -       -      +
    480A  ARG      3.2     0.2    -      -       -      -
    481A  GLN*     1.3    72.8    -      -       -      +
    483A  LEU*     1.3    57.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 483 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148A  ARG*     3.2     3.6    +      -       -      -
    230A  PHE*     4.2     6.3    -      -       +      -
    272A  ALA*     3.5    31.4    -      -       +      +
    275A  THR*     3.5    18.4    -      -       -      +
    276A  PHE*     4.0    16.2    -      -       +      -
    402A  GLN*     3.7     8.0    -      -       -      +
    403A  ALA*     3.0    38.2    +      -       +      -
    404A  ILE*     4.2    19.8    -      -       +      +
    479A  GLY      3.1     9.4    +      -       -      +
    480A  ARG*     3.2    31.1    +      -       -      +
    482A  MET*     1.3    76.4    -      -       -      +
    484A  GLY*     1.3    57.5    +      -       -      +
    485A  ILE*     3.9    19.8    -      -       +      +
----------------------------------------------------------
 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