Contacts of the helix formed by residues 414 - 431 (chain A) in PDB entry 2C0O


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 414 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    357A  ILE*     3.4    19.8    -      -       +      +
    406A  GLU*     5.3     1.6    +      -       -      -
    412A  SER*     3.7    12.4    +      -       -      +
    413A  PHE*     1.3    80.8    -      -       -      +
    415A  ILE*     1.3    65.1    +      -       -      +
    416A  LYS*     3.0    25.2    +      -       -      +
    417A  SER*     2.8    20.3    +      -       -      -
    418A  ASP*     3.2     9.7    +      -       -      +
    477A  PRO*     5.4     1.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 415 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    348A  MET*     4.1     5.2    -      -       +      -
    351A  ILE*     4.2     2.0    -      -       +      -
    352A  GLU*     3.6    49.8    -      -       +      +
    356A  TYR      3.5    23.3    -      -       -      +
    357A  ILE*     3.5     6.4    -      -       +      +
    414A  THR*     1.3    76.3    -      -       -      +
    416A  LYS*     1.3    74.9    +      -       +      +
    417A  SER      3.4     0.2    -      -       -      -
    418A  ASP*     3.1    22.9    -      -       -      +
    419A  VAL*     2.9    26.9    +      -       +      +
    483A  PHE*     3.8    16.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 416 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    352A  GLU*     5.1     1.8    +      -       -      +
    414A  THR*     3.0    10.9    +      -       -      +
    415A  ILE*     1.3    90.5    -      -       +      +
    417A  SER*     1.3    64.5    +      -       -      +
    418A  ASP      3.2     0.2    -      -       -      -
    419A  VAL*     3.2     7.0    +      -       +      +
    420A  TRP      3.2    13.9    +      -       -      -
    477A  PRO*     3.4    41.3    -      -       +      +
    478A  GLU*     4.5    11.8    +      -       -      +
    480A  ARG*     2.7    48.9    +      -       +      +
    481A  PRO      3.1    19.9    +      -       -      +
    482A  THR*     3.8    15.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 417 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    403A  THR*     6.0     0.2    -      -       -      -
    404A  ALA*     3.6    22.7    +      -       -      +
    406A  GLU*     3.8     9.1    +      -       -      -
    407A  ALA*     4.4     8.7    -      -       -      -
    412A  SER      4.3     5.6    -      -       -      -
    413A  PHE*     3.3    14.0    -      -       -      +
    414A  THR*     2.8    36.1    +      -       -      -
    416A  LYS*     1.3    80.1    -      -       -      +
    418A  ASP*     1.3    58.9    +      -       -      +
    420A  TRP*     3.2     5.7    +      -       -      +
    421A  SER*     2.8    26.4    +      -       -      -
    480A  ARG*     3.6     8.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 418 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    348A  MET*     3.8     7.5    -      -       +      +
    357A  ILE*     3.3    11.8    -      -       -      +
    358A  HIS*     2.5    32.1    +      -       -      +
    359A  ARG*     2.9    27.4    +      -       -      -
    360A  ASP      4.6     0.5    +      -       -      -
    361A  LEU*     4.3     7.4    -      -       +      +
    414A  THR      3.2    10.3    +      -       -      -
    415A  ILE*     3.1    21.5    -      -       -      +
    416A  LYS      3.2     0.2    -      -       -      -
    417A  SER*     1.3    77.0    +      -       -      +
    419A  VAL*     1.3    54.7    +      -       -      +
    421A  SER*     3.1    10.1    +      -       -      -
    422A  PHE*     2.8    27.5    +      -       -      +
    483A  PHE*     3.7    15.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 419 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    352A  GLU*     4.8     2.0    -      -       -      +
    415A  ILE*     2.9    17.9    +      -       +      +
    416A  LYS*     3.2    14.3    +      -       +      +
    418A  ASP*     1.3    74.5    -      -       -      +
    420A  TRP*     1.3    59.7    +      -       -      +
    422A  PHE*     3.2     4.7    +      -       -      +
    423A  GLY      3.0    22.0    +      -       -      -
    472A  CYS*     3.4    25.2    -      -       +      +
    480A  ARG*     3.9    22.7    -      -       +      -
    481A  PRO*     3.4    23.6    -      -       +      +
    483A  PHE*     3.7    32.5    -      -       +      +
    486A  ILE*     4.3     5.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 420 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    401A  LYS      4.8     1.8    +      -       -      -
    402A  TRP      3.5    16.4    +      -       -      -
    403A  THR      3.9     7.9    +      -       -      -
    404A  ALA*     3.8    18.2    -      -       +      -
    405A  PRO*     3.7    30.1    -      -       +      -
    416A  LYS      3.2     5.7    +      -       -      -
    417A  SER      3.3    10.1    -      -       -      +
    419A  VAL*     1.3    74.8    -      -       -      +
    421A  SER*     1.3    68.5    +      -       -      +
    423A  GLY*     2.9    12.5    +      -       -      -
    424A  ILE*     3.1    25.8    +      -       +      +
    437A  TYR*     4.4     5.3    +      -       -      -
    449A  LEU*     4.0    25.5    -      -       +      +
    454A  ARG*     4.0    23.6    -      -       -      -
    472A  CYS      3.8     8.7    +      -       -      +
    473A  TRP*     3.4    47.5    +      +       +      -
    474A  LYS      3.6     7.9    -      -       -      -
    475A  ASN*     5.0     0.7    -      -       -      -
    480A  ARG*     3.3    24.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 421 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    359A  ARG      5.7     1.4    +      -       -      -
    361A  LEU*     3.7    33.2    +      -       -      +
    402A  TRP*     3.0    27.8    +      -       -      -
    403A  THR*     4.8     1.9    -      -       -      -
    417A  SER      2.8    15.1    +      -       -      -
    418A  ASP*     3.1    10.7    +      -       -      -
    420A  TRP*     1.3    77.7    -      -       -      +
    422A  PHE*     1.3    65.7    +      -       -      +
    424A  ILE*     2.9     8.6    +      -       -      +
    425A  LEU*     2.8    20.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 422 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    341A  SER*     3.8    19.7    -      -       -      -
    344A  ILE*     3.6    22.7    -      -       +      -
    345A  ALA*     3.5    33.4    -      -       +      -
    348A  MET*     4.9     0.2    -      -       +      -
    361A  LEU*     4.0    13.6    -      -       +      +
    418A  ASP      2.8    13.5    +      -       -      +
    419A  VAL      3.4     8.1    -      -       -      +
    421A  SER*     1.3    77.1    -      -       -      +
    423A  GLY*     1.3    63.5    +      -       -      +
    425A  LEU*     2.9    17.9    +      -       +      +
    426A  LEU*     3.0    39.3    +      -       +      +
    472A  CYS*     4.4     1.1    -      -       -      -
    483A  PHE*     3.7    22.0    -      +       +      -
    486A  ILE*     3.5    31.0    -      -       +      -
    490A  LEU*     3.9     7.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 423 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    419A  VAL      3.0     7.7    +      -       -      -
    420A  TRP      2.9     9.4    +      -       -      -
    422A  PHE*     1.3    77.1    -      -       -      +
    424A  ILE*     1.3    60.0    +      -       -      +
    426A  LEU*     3.2    10.6    -      -       -      +
    427A  MET*     3.2    15.4    +      -       -      +
    469A  MET*     4.1     4.8    -      -       -      +
    472A  CYS*     3.8    19.1    -      -       -      -
    473A  TRP*     3.4    25.0    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 424 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    401A  LYS      3.8    17.0    -      -       -      +
    402A  TRP*     3.5    25.4    -      -       +      -
    420A  TRP*     3.6    25.6    -      -       +      +
    421A  SER      2.9     7.4    +      -       -      +
    423A  GLY*     1.3    74.3    -      -       -      +
    425A  LEU*     1.3    61.2    +      -       -      +
    427A  MET*     3.1     3.5    +      -       -      +
    428A  GLU*     2.8    26.2    +      -       -      +
    436A  PRO*     3.5    34.3    -      -       +      -
    437A  TYR*     4.0    14.4    -      -       +      +
    455A  MET*     4.1     9.0    -      -       +      -
    473A  TRP*     3.3    29.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 425 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    320A  LEU*     4.8     2.5    -      -       +      -
    344A  ILE*     4.4    11.2    -      -       +      -
    361A  LEU*     4.2    21.5    -      -       +      -
    362A  ARG*     3.8    27.8    -      -       -      +
    363A  ALA*     3.4    36.8    -      -       +      +
    366A  ILE*     4.2    12.8    -      -       +      -
    402A  TRP*     4.5     0.8    -      -       -      +
    421A  SER      2.8    10.6    +      -       -      +
    422A  PHE*     3.3    13.5    -      -       +      +
    424A  ILE*     1.3    74.7    -      -       -      +
    426A  LEU*     1.3    55.0    +      -       -      +
    428A  GLU*     3.0     8.2    +      -       +      +
    429A  ILE*     2.7    52.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 426 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    338A  ILE*     5.9     0.4    -      -       +      -
    341A  SER*     2.7    35.2    -      -       -      +
    422A  PHE*     3.0    39.5    +      -       +      +
    423A  GLY*     3.2    13.9    -      -       -      +
    425A  LEU*     1.3    74.1    -      -       -      +
    427A  MET*     1.3    65.6    +      -       -      +
    429A  ILE*     3.1     7.7    +      -       +      +
    430A  VAL*     2.9    27.0    +      -       +      +
    465A  LEU*     3.8    29.2    -      -       +      -
    468A  ILE*     4.0    22.2    -      -       +      -
    469A  MET*     4.1    22.9    -      -       +      +
    472A  CYS*     5.1     0.2    -      -       -      -
    490A  LEU*     4.7     1.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 427 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    423A  GLY      3.2     8.1    +      -       -      +
    424A  ILE      3.1     9.0    +      -       -      +
    426A  LEU*     1.3    80.2    -      -       -      +
    428A  GLU*     1.3    59.0    +      -       -      +
    430A  VAL*     3.4     2.2    +      -       -      +
    431A  THR*     2.8    34.4    +      -       +      +
    434A  ARG*     4.2    12.8    -      -       -      +
    436A  PRO*     5.9     1.3    -      -       +      -
    455A  MET*     3.4    40.6    -      -       +      +
    456A  PRO      3.8    19.1    -      -       -      +
    458A  PRO*     3.4    31.9    -      -       +      -
    466A  TYR*     4.3     4.0    -      -       +      -
    469A  MET*     3.6    27.1    -      -       -      +
    473A  TRP*     3.8    14.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 428 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    321A  LEU*     3.4    26.7    -      -       -      +
    324A  LEU*     4.6     0.7    -      -       -      -
    363A  ALA*     2.9    31.3    +      -       +      +
    364A  ALA*     4.7     1.7    +      -       -      +
    402A  TRP*     2.6    42.2    +      -       +      +
    424A  ILE      2.8    14.9    +      -       -      +
    425A  LEU*     3.2    15.0    -      -       +      +
    427A  MET*     1.3    74.5    -      -       -      +
    429A  ILE*     1.3    60.7    -      -       -      +
    431A  THR*     3.2     5.7    +      -       -      -
    432A  TYR      3.1     4.5    +      -       -      -
    433A  GLY*     2.9    29.2    +      -       -      +
    434A  ARG      4.1    17.4    -      -       -      +
    435A  ILE*     6.0     0.2    -      -       -      -
    436A  PRO*     4.3     9.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 429 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    320A  LEU*     4.0    20.4    -      -       +      -
    324A  LEU*     3.6    15.0    -      -       +      +
    337A  LEU*     3.5    50.6    -      -       +      +
    340A  PHE*     4.5     4.3    -      -       +      -
    341A  SER*     3.8    25.8    -      -       -      +
    344A  ILE*     3.9    26.5    -      -       +      -
    422A  PHE*     6.5     0.4    -      -       +      -
    425A  LEU*     2.7    33.1    +      -       +      +
    426A  LEU*     3.6     5.4    -      -       +      +
    428A  GLU*     1.3    72.5    -      -       -      +
    430A  VAL*     1.3    64.8    +      -       +      +
    432A  TYR*     3.1    13.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 430 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    334A  LEU*     4.6    19.1    -      -       +      -
    337A  LEU*     4.2    10.1    -      -       +      -
    338A  ILE*     6.1     1.3    -      -       +      -
    426A  LEU*     2.9    14.1    +      -       +      +
    427A  MET*     3.7     8.3    -      -       -      +
    429A  ILE*     1.3    78.8    -      -       +      +
    431A  THR*     1.3    58.6    +      -       -      +
    432A  TYR*     3.5     5.8    -      -       -      -
    458A  PRO*     3.6    29.8    -      -       +      -
    460A  ASN*     2.9    29.4    +      -       -      +
    461A  CYS*     4.1    16.4    -      -       +      -
    462A  PRO*     5.1     0.2    -      -       +      -
    465A  LEU*     3.6    29.2    -      -       +      -
    469A  MET*     4.4     4.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 431 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    427A  MET*     2.8    24.4    +      -       -      +
    428A  GLU*     3.2     7.4    +      -       -      -
    429A  ILE      3.1     0.2    -      -       -      -
    430A  VAL*     1.3    79.4    -      -       -      +
    432A  TYR*     1.3    72.4    +      -       -      +
    433A  GLY      3.0     1.3    +      -       -      -
    434A  ARG*     3.2    53.3    +      -       -      +
    458A  PRO*     3.8    32.1    -      -       +      -
    460A  ASN*     5.6     0.2    -      -       -      +
----------------------------------------------------------
 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