Contacts of the helix formed by residues 412 - 434 (chain A) in PDB entry 1GUX


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 LYS 412 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    396A  PRO*     5.5     2.9    -      -       +      -
    401A  ILE*     4.6    32.1    -      -       +      +
    404A  PHE*     3.9    26.9    -      -       +      +
    405A  ASN*     5.4     4.9    -      -       -      +
    410A  ASN*     3.0    20.9    +      -       -      +
    411A  PRO*     1.3    79.4    -      -       -      +
    413A  GLU*     1.3    57.9    +      -       -      +
    415A  ILE*     3.7     2.6    -      -       -      +
    416A  LEU*     3.0    56.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 413 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    410A  ASN*     4.6     7.3    +      -       -      +
    411A  PRO      3.4     0.4    -      -       -      -
    412A  LYS*     1.3    77.0    -      -       -      +
    414A  SER*     1.3    65.6    +      -       -      +
    416A  LEU*     3.9     7.9    -      -       -      +
    417A  LYS*     2.9    30.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 414 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    410A  ASN      5.0     0.3    +      -       -      -
    411A  PRO*     2.9    25.0    +      -       -      +
    413A  GLU*     1.3    81.6    -      -       -      +
    415A  ILE*     1.3    61.2    +      -       -      +
    417A  LYS*     3.7     5.9    -      -       -      +
    418A  ARG*     2.8    42.1    +      -       -      +
    478A  ASN*     5.1     2.9    +      -       -      -
----------------------------------------------------------
 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
----------------------------------------------------------
    404A  PHE*     3.5    38.4    -      -       +      -
    411A  PRO*     2.9    37.4    +      -       +      +
    412A  LYS*     3.7     4.9    -      -       -      +
    414A  SER*     1.3    77.9    +      -       -      +
    416A  LEU*     1.3    57.6    +      -       +      +
    418A  ARG*     3.3    15.0    +      -       -      +
    419A  VAL*     3.0    29.3    +      -       -      +
    453A  TYR*     4.0    12.5    +      -       +      +
    454A  TYR*     4.0    28.9    -      -       +      +
    457A  MET*     5.1     0.4    -      -       +      -
    477A  LEU*     5.1     0.4    -      -       +      -
    483A  HIS*     3.6    33.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 416 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    395A  GLN*     3.2    41.1    +      -       -      +
    396A  PRO*     3.7    22.0    -      -       +      -
    404A  PHE*     5.9     0.4    -      -       +      -
    412A  LYS*     3.0    51.5    +      -       +      +
    413A  GLU*     3.9     6.7    -      -       -      +
    415A  ILE*     1.3    74.3    -      -       +      +
    417A  LYS*     1.3    60.6    -      -       -      +
    419A  VAL*     3.3     6.9    +      -       -      +
    420A  LYS*     3.0    28.2    +      -       -      +
    454A  TYR*     3.7     5.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 417 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    413A  GLU      2.9    20.0    +      -       -      +
    414A  SER*     3.7     6.7    -      -       -      +
    416A  LEU*     1.3    74.7    -      -       -      +
    418A  ARG*     1.3    54.3    +      -       -      +
    420A  LYS*     3.1     8.3    +      -       +      +
    421A  ASP*     2.8    66.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 418 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    414A  SER*     2.8    27.3    +      -       -      +
    415A  ILE*     3.6    26.6    +      -       -      +
    417A  LYS*     1.3    75.9    -      -       -      +
    419A  VAL*     1.3    67.5    +      -       +      +
    421A  ASP*     3.1     6.5    +      -       -      -
    422A  ILE*     2.8    44.3    +      -       +      +
    453A  TYR*     4.5     5.3    +      -       +      -
    480A  ASN*     3.8    28.9    +      -       -      +
    483A  HIS*     3.2    51.4    -      -       -      +
    484A  MET*     3.6    30.3    -      -       +      +
    487A  LEU*     5.1     6.3    -      -       +      -
----------------------------------------------------------
 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
----------------------------------------------------------
    394A  ASP      5.5     0.7    -      -       -      +
    395A  GLN*     4.8     7.2    -      -       -      +
    415A  ILE      3.0    16.3    +      -       -      +
    416A  LEU*     3.5     9.0    -      -       -      +
    418A  ARG*     1.3    76.2    -      -       +      +
    420A  LYS*     1.3    63.5    +      -       -      +
    422A  ILE*     4.9     0.2    -      -       -      -
    423A  GLY*     3.0    14.2    +      -       -      -
    446A  TYR*     2.7    28.1    +      -       +      -
    450A  VAL*     3.8    33.2    -      -       +      -
    453A  TYR*     4.1    17.3    -      -       +      -
    454A  TYR*     3.3    30.1    -      -       +      +
    487A  LEU*     5.5     4.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 420 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    416A  LEU      3.0    14.0    +      -       -      +
    417A  LYS*     3.1    11.0    +      -       +      +
    419A  VAL*     1.3    84.7    -      -       -      +
    421A  ASP*     1.3    63.1    +      -       -      +
    423A  GLY*     3.6     9.5    -      -       -      -
    424A  TYR*     3.1    66.6    +      -       +      +
    427A  LYS*     2.9    31.7    -      -       -      +
    446A  TYR*     4.8     1.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 421 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    417A  LYS*     2.8    61.7    +      -       -      +
    418A  ARG*     3.8     5.7    -      -       -      +
    420A  LYS*     1.3    74.0    -      -       -      +
    422A  ILE*     1.3    67.2    +      -       +      +
    424A  TYR*     3.2    18.4    +      -       -      +
    425A  ILE*     3.1    30.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 422 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    418A  ARG*     2.8    33.7    +      -       +      +
    421A  ASP*     1.3    75.9    -      -       +      +
    423A  GLY*     1.3    56.6    +      -       -      +
    425A  ILE*     3.1    21.6    +      -       +      -
    426A  PHE*     2.7    34.3    +      -       +      +
    446A  TYR*     3.5    16.2    -      -       +      +
    484A  MET*     4.0    26.5    -      -       +      -
    487A  LEU*     3.8    16.6    -      -       +      -
    521A  LEU*     3.4    39.0    -      -       +      +
----------------------------------------------------------
 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    10.1    +      -       -      -
    420A  LYS*     3.6    14.6    -      -       -      -
    421A  ASP      3.2     0.2    -      -       -      -
    422A  ILE*     1.3    74.0    -      -       -      +
    424A  TYR*     1.3    63.8    +      -       -      +
    427A  LYS*     3.0    34.5    +      -       -      +
    446A  TYR*     3.2    32.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 424 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    420A  LYS*     3.1    56.6    +      -       +      +
    421A  ASP*     3.4    16.4    -      -       -      +
    422A  ILE      3.2     0.4    -      -       -      -
    423A  GLY*     1.3    75.1    -      -       -      +
    425A  ILE*     1.3    63.5    +      -       +      +
    427A  LYS*     4.1     7.9    -      -       +      +
    428A  GLU*     3.2    29.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 425 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    421A  ASP*     3.1    20.6    +      -       +      +
    422A  ILE*     3.1    27.8    +      -       +      +
    424A  TYR*     1.3    79.0    -      -       +      +
    426A  PHE*     1.3    58.1    +      -       -      +
    428A  GLU*     3.1    14.2    -      -       -      +
    429A  LYS*     2.9    55.6    +      -       +      +
    520A  VAL*     3.6    24.9    -      -       +      +
    522A  ASN*     5.7     7.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 426 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    422A  ILE*     2.7    23.7    +      -       +      +
    423A  GLY      3.9     0.7    -      -       -      +
    425A  ILE*     1.3    73.6    -      -       -      +
    427A  LYS*     1.3    56.1    +      -       -      +
    429A  LYS*     3.2     1.6    +      -       -      +
    430A  PHE*     2.7    59.8    +      +       +      +
    442A  GLY*     3.5    21.1    -      -       -      -
    445A  ARG*     4.4     1.6    -      -       +      -
    446A  TYR*     3.8    36.6    -      +       +      -
    491A  LEU*     4.4    10.8    -      -       +      -
    495A  MET*     3.1    35.4    -      -       +      -
    516A  TRP*     3.6    19.0    -      +       -      -
    517A  ILE*     4.1    21.3    -      -       +      -
    520A  VAL*     4.0    17.9    -      -       +      +
    521A  LEU*     5.1     0.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 427 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    420A  LYS*     2.9    31.9    -      -       -      +
    423A  GLY*     3.0    22.4    +      -       -      +
    424A  TYR*     4.1     7.9    -      -       +      +
    426A  PHE*     1.3    77.0    -      -       +      +
    428A  GLU*     1.3    67.8    +      -       -      +
    430A  PHE*     3.9     4.0    -      -       -      +
    431A  ALA*     3.0    26.5    +      -       -      +
    438A  CYS*     4.7     9.8    -      -       +      -
    439A  VAL      5.1     5.7    +      -       -      +
    442A  GLY*     4.3     5.2    -      -       -      +
    443A  SER*     3.2    50.4    +      -       -      +
    446A  TYR*     4.1    16.3    -      -       -      -
    447A  LYS*     5.8     4.4    -      -       -      +
----------------------------------------------------------
 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
----------------------------------------------------------
    424A  TYR*     3.2    18.3    +      -       -      +
    425A  ILE*     3.1    24.0    -      -       -      +
    427A  LYS*     1.3    79.2    -      -       -      +
    429A  LYS*     1.3    94.7    +      -       -      +
    431A  ALA*     3.4     2.4    +      -       -      +
    432A  LYS*     3.1    40.5    +      -       -      +
    438A  CYS*     4.2    18.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 429 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    425A  ILE*     2.9    37.5    +      -       +      +
    426A  PHE      3.8     2.7    -      -       -      +
    428A  GLU*     1.3   106.5    +      -       -      +
    430A  PHE*     1.3    64.3    +      -       -      +
    432A  LYS*     2.7    40.8    +      -       +      +
    433A  ALA*     3.0    24.1    +      -       -      +
    516A  TRP*     4.2     7.2    +      -       +      +
    520A  VAL*     4.3    27.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 430 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    426A  PHE*     2.7    47.5    +      +       +      +
    427A  LYS*     3.9     4.0    -      -       -      +
    429A  LYS*     1.3    72.5    -      -       -      +
    431A  ALA*     1.3    55.1    +      -       -      +
    433A  ALA*     3.2     4.7    +      -       +      +
    434A  VAL*     2.8    59.1    +      -       +      +
    439A  VAL*     3.9    16.6    -      -       +      -
    441A  ILE*     3.9    19.3    -      -       +      -
    442A  GLY*     3.3    30.7    -      -       -      -
    445A  ARG*     4.0    33.0    -      -       -      -
    495A  MET*     4.6     2.5    -      -       -      -
    516A  TRP*     4.1    16.1    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 431 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    427A  LYS      3.0    14.0    +      -       -      +
    428A  GLU      3.7     4.0    -      -       -      +
    430A  PHE*     1.3    78.9    -      -       -      +
    432A  LYS*     1.3    59.9    +      -       +      +
    435A  GLY*     2.4    43.7    +      -       -      +
    437A  GLY*     5.0     0.8    +      -       -      -
    438A  CYS*     3.2    44.9    -      -       -      +
    439A  VAL*     3.8     5.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 432 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    428A  GLU*     3.1    29.4    +      -       -      +
    429A  LYS*     2.7    54.0    -      -       +      +
    431A  ALA*     1.3    78.4    -      -       -      +
    433A  ALA*     1.3    68.5    +      -       -      +
    434A  VAL      4.4     0.2    -      -       -      -
    435A  GLY*     3.9     3.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 433 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    429A  LYS      3.0    11.0    +      -       -      +
    430A  PHE*     3.4    11.9    -      -       +      +
    432A  LYS*     1.3    85.9    -      -       -      +
    434A  VAL*     1.3    67.5    +      -       +      +
    516A  TRP*     4.7    16.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 434 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    430A  PHE*     2.8    50.6    +      -       +      +
    433A  ALA*     1.3    79.9    -      -       +      +
    435A  GLY*     1.3    60.8    +      -       -      +
    439A  VAL*     5.5     5.4    -      -       +      -
    441A  ILE*     6.3     3.1    -      -       +      -
----------------------------------------------------------
 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