Contacts of the helix formed by residues 436 - 451 (chain B) in PDB entry 5IYB


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 436 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    149B  ILE      4.5     0.5    -      -       -      +
    411B  LEU*     3.8     9.5    -      -       +      +
    414B  GLU*     3.6    34.4    -      -       +      +
    418B  TYR*     3.7    27.3    -      -       -      +
    433B  LEU      3.7     7.8    +      -       -      -
    434B  ALA      2.9    21.5    +      -       -      +
    435B  ILE*     1.3    78.8    -      -       -      +
    437B  THR*     1.3    64.8    +      -       -      +
    438B  ARG*     3.1    13.5    -      -       +      +
    439B  ILE*     2.9    37.6    +      -       +      +
    440B  ILE      4.2     0.9    +      -       -      -
    119M  LYS*     5.5     3.4    -      -       -      +
    120M  GLU*     6.0     1.6    -      -       -      -
    123M  THR*     4.1    31.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 437 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148B  PHE*     3.3    47.4    -      -       +      +
    149B  ILE*     3.2    25.4    -      -       -      +
    150B  GLY*     4.3     2.0    -      -       -      -
    435B  ILE*     3.7     7.3    +      -       +      +
    436B  LYS*     1.3    71.2    -      -       -      +
    438B  ARG*     1.3    61.2    +      -       -      +
    439B  ILE      3.1     0.7    +      -       -      -
    440B  ILE      3.4     2.9    +      -       -      -
    441B  SER*     3.2    23.4    +      -       -      -
    123M  THR*     5.3     1.5    +      -       -      +
    126M  ASP*     2.4    36.5    +      -       -      +
    127M  ARG*     4.8    10.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 438 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    436B  LYS*     3.1     8.8    -      -       +      +
    437B  THR*     1.3    83.0    +      -       -      +
    439B  ILE*     1.3    80.7    -      -       -      +
    441B  SER*     3.9     3.6    -      -       -      -
    442B  ASP*     2.9    40.0    +      -       +      +
    119M  LYS*     3.1    37.4    -      -       -      +
    122M  THR*     3.8    28.6    +      -       -      +
    123M  THR*     4.5    14.0    +      -       -      +
    126M  ASP*     3.8    16.8    +      -       +      +
     61Y    A      3.6    37.3    +      -       -      -
     62Y    C      3.6     8.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 439 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    407B  MET*     4.0    25.5    -      -       -      +
    410B  ASN*     4.5    17.7    -      -       +      +
    411B  LEU*     4.3    24.0    -      -       +      +
    414B  GLU*     4.8    15.3    -      -       +      +
    436B  LYS*     2.9    34.3    +      -       +      +
    438B  ARG*     1.3    95.9    -      -       -      +
    440B  ILE*     1.3    62.3    +      -       -      +
    443B  GLY*     3.1    21.3    +      -       -      -
    119M  LYS*     5.0     3.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 440 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124B  LEU*     5.0     3.1    -      -       +      -
    149B  ILE*     3.8    25.8    -      -       +      +
    150B  GLY*     4.2     7.6    -      -       -      -
    152B  ILE*     3.9    17.3    -      -       +      -
    404B  PHE*     3.9    30.3    -      -       +      -
    407B  MET*     3.6    40.6    -      -       +      +
    408B  PHE*     4.0     7.0    -      -       +      +
    411B  LEU*     4.0    25.4    -      -       +      -
    436B  LYS      5.3     0.2    -      -       -      +
    437B  THR      3.4     1.4    +      -       -      -
    439B  ILE*     1.3    74.5    -      -       +      +
    441B  SER*     1.3    68.7    +      -       -      +
    444B  LEU*     3.3    24.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 441 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    150B  GLY*     3.1     8.5    -      -       -      -
    151B  LYS*     2.4    69.9    +      -       -      +
    153B  PRO*     5.5     0.3    -      -       -      +
    437B  THR*     3.2    11.3    +      -       -      -
    438B  ARG*     4.3     4.5    -      -       -      -
    440B  ILE*     1.3    77.1    -      -       -      +
    442B  ASP*     1.3    62.6    +      -       -      +
    444B  LEU*     4.2     0.7    -      -       -      +
    445B  LYS*     3.2    25.9    +      -       -      +
    126M  ASP*     5.1     1.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 442 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    438B  ARG*     2.9    29.9    +      -       +      +
    441B  SER*     1.3    79.4    -      -       -      +
    443B  GLY*     1.3    59.3    +      -       -      +
    445B  LYS*     3.9    26.6    +      -       -      +
    446B  TYR*     2.8    32.2    +      -       -      +
     60Y    A      2.9    37.9    +      -       -      +
     61Y    A      3.0    17.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 443 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    407B  MET*     3.4    28.5    -      -       -      +
    439B  ILE      3.1    14.0    +      -       -      -
    441B  SER      3.4     0.2    -      -       -      -
    442B  ASP*     1.3    78.3    -      -       -      +
    444B  LEU*     1.3    58.3    +      -       -      +
    446B  TYR*     3.7     5.9    +      -       -      +
    447B  SER*     3.1    25.6    +      -       -      -
    455B  ASP*     5.9     2.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 444 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50B  PHE*     5.7     3.1    -      -       +      -
    151B  LYS      5.4     0.2    -      -       -      +
    152B  ILE*     3.5    34.3    -      -       +      -
    153B  PRO*     4.3    17.9    -      -       +      -
    400B  LEU*     3.9    22.2    -      -       +      +
    403B  LEU*     3.6    33.9    -      -       +      -
    404B  PHE*     4.2    19.5    -      -       +      +
    407B  MET*     3.8    10.0    -      -       +      -
    440B  ILE*     3.3    16.9    +      -       +      +
    441B  SER      4.2     1.8    -      -       -      +
    443B  GLY*     1.3    72.2    -      -       -      +
    445B  LYS*     1.3    66.9    +      -       -      +
    446B  TYR      3.2     0.2    -      -       -      -
    447B  SER*     3.1     4.7    +      -       -      +
    448B  LEU*     3.0    30.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 445 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119B  THR*     4.0    17.3    -      -       +      +
    153B  PRO*     4.8    11.1    -      -       +      +
    187B  ILE*     3.9    18.3    -      -       +      +
    188B  ASN*     3.7    18.6    +      -       -      +
    441B  SER*     3.2    19.8    +      -       -      +
    442B  ASP*     3.8    18.4    +      -       -      +
    444B  LEU*     1.3    77.6    -      -       -      +
    446B  TYR*     1.3    62.8    +      -       -      +
    448B  LEU*     3.6     3.6    +      -       -      +
    449B  ALA*     3.1    26.0    +      -       -      +
    913B  GLN*     3.1    27.3    +      -       -      -
     60Y    A      3.1    26.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 446 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    442B  ASP*     2.8    25.2    +      -       -      +
    443B  GLY*     3.8     5.8    -      -       -      +
    445B  LYS*     1.3    77.7    -      -       -      +
    447B  SER*     1.3    70.3    +      -       -      +
    449B  ALA*     3.3     4.5    +      -       +      +
    450B  THR*     2.9    53.8    +      -       +      +
    452B  ASN*     3.0    32.7    +      -       +      -
    454B  GLY      5.0     6.7    -      -       -      -
    455B  ASP*     5.7     2.9    -      -       -      -
    456B  GLN*     3.7    25.5    +      -       +      +
     59Y    G      5.8     1.6    -      +       +      -
     60Y    A      3.5    51.4    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 447 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    403B  LEU*     3.6    34.7    -      -       -      +
    407B  MET*     4.2     0.5    -      -       -      +
    443B  GLY      3.1    13.1    +      -       -      -
    444B  LEU      3.1     6.0    +      -       -      -
    446B  TYR*     1.3    81.3    -      -       -      +
    448B  LEU*     1.3    64.1    +      -       -      +
    450B  THR*     3.7     3.8    +      -       -      -
    451B  GLY*     3.1    24.9    +      -       -      -
    452B  ASN      3.8    16.4    -      -       -      +
    453B  TRP*     5.2     2.2    -      -       -      -
    454B  GLY      3.8    18.2    +      -       -      -
    467B  SER*     4.4     2.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 448 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    153B  PRO*     3.6    38.8    -      -       +      -
    185B  PHE*     4.0    30.7    -      -       +      -
    187B  ILE*     3.6    21.3    -      -       +      -
    192B  LYS*     3.0    16.5    -      -       +      +
    194B  LEU*     5.2     9.0    -      -       +      -
    400B  LEU*     4.2    24.5    -      -       +      -
    403B  LEU*     4.8     2.7    -      -       +      -
    444B  LEU*     3.0    20.2    +      -       +      +
    445B  LYS      4.0     1.3    -      -       -      +
    447B  SER*     1.3    83.4    -      -       -      +
    449B  ALA*     1.3    58.4    +      -       -      +
    453B  TRP*     6.5     0.2    -      -       +      -
    467B  SER*     2.8    28.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 449 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    187B  ILE*     4.1    19.5    -      -       +      +
    188B  ASN*     4.2    12.6    -      -       -      +
    192B  LYS*     3.0    27.6    +      -       -      +
    445B  LYS*     3.1    19.5    +      -       +      +
    446B  TYR*     3.8     3.4    -      -       -      +
    448B  LEU*     1.3    77.9    -      -       -      +
    450B  THR*     1.3    61.2    +      -       +      +
     60Y    A      4.6     7.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 450 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    192B  LYS*     4.8     4.1    +      -       -      -
    446B  TYR*     2.9    48.5    +      -       +      +
    447B  SER*     3.7     0.9    +      -       -      -
    449B  ALA*     1.3    83.0    -      -       +      +
    451B  GLY*     1.3    63.5    +      -       -      +
    452B  ASN*     3.2    30.0    +      -       -      +
     61M  THR*     3.7    24.5    -      -       -      +
     59Y    G      6.0     9.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 451 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    192B  LYS*     5.4     0.2    -      -       -      -
    447B  SER      3.1    10.9    +      -       -      -
    448B  LEU      4.2     0.6    +      -       -      -
    449B  ALA      3.5     1.6    -      -       -      -
    450B  THR*     1.3    77.9    +      -       -      +
    452B  ASN*     1.3    67.3    +      -       -      +
    463B  ARG      3.6    14.9    -      -       -      +
    465B  GLY*     3.7    14.1    +      -       -      -
    466B  VAL*     4.1     5.7    -      -       -      +
    467B  SER*     3.8    27.6    -      -       -      -
     61M  THR*     5.7     0.7    -      -       -      -
     62M  LYS*     4.2     4.4    +      -       -      -
----------------------------------------------------------
 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