Contacts of the helix formed by residues 707 - 727 (chain A) in PDB entry 3KN5


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 SER 707 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    703A  ILE*     3.7     5.3    +      -       -      +
    704A  LEU      3.1     3.8    +      -       -      -
    705A  GLY      2.9     6.3    +      -       -      -
    706A  SER*     1.3    83.5    -      -       -      +
    708A  GLY*     1.3    56.9    +      -       -      +
    709A  ALA*     3.1     9.8    +      -       -      +
    710A  ALA*     3.5    26.4    +      -       -      +
    711A  VAL*     3.6    20.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 708 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    511A  LYS*     3.7    21.3    +      -       -      +
    704A  LEU*     2.6    24.5    +      -       -      -
    705A  GLY      4.5     0.6    +      -       -      -
    707A  SER*     1.3    71.6    -      -       -      +
    709A  ALA*     1.3    59.2    +      -       -      +
    710A  ALA      3.6     0.2    -      -       -      -
    711A  VAL*     3.7    13.8    -      -       -      +
    712A  HIS*     3.0    27.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 709 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    511A  LYS*     4.8     0.6    -      -       -      +
    707A  SER*     4.2     8.3    -      -       -      +
    708A  GLY*     1.3    75.2    -      -       -      +
    710A  ALA*     1.3    67.2    -      -       -      +
    712A  HIS*     3.1    17.7    +      -       -      +
    713A  THR*     3.3    13.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 710 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    631A  CYS*     5.1     0.2    -      -       -      -
    707A  SER*     3.5    20.5    +      -       -      +
    709A  ALA*     1.3    79.4    -      -       -      +
    711A  VAL*     1.3    57.3    +      -       +      +
    713A  THR*     3.1     8.3    +      -       -      -
    714A  CYS*     3.0    30.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 711 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    507A  PHE*     4.9     8.5    -      -       +      -
    614A  THR*     4.6     9.6    -      -       +      -
    618A  GLY      3.8    21.5    -      -       -      +
    619A  GLN*     5.3     0.4    -      -       -      -
    620A  VAL*     4.6    11.2    -      -       +      -
    703A  ILE*     5.4     2.7    -      -       +      -
    704A  LEU*     4.1    19.7    -      -       +      -
    707A  SER      3.6    14.1    +      -       -      +
    708A  GLY*     3.6    14.4    +      -       -      +
    709A  ALA      3.1     0.6    -      -       -      -
    710A  ALA*     1.3    80.0    -      -       +      +
    712A  HIS*     1.3    57.9    +      -       -      +
    714A  CYS*     3.7     5.0    -      -       -      +
    715A  VAL*     2.9    41.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 712 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    400A  ANP      4.5     5.1    +      -       -      -
    505A  GLU*     5.4     3.4    +      -       -      -
    548A  GLU*     3.0    35.2    -      -       +      +
    708A  GLY      3.0    19.0    +      -       -      +
    709A  ALA*     3.1     7.1    +      -       -      +
    711A  VAL*     1.3    81.1    -      -       -      +
    713A  THR*     1.3    69.6    +      -       +      +
    715A  VAL*     3.4     5.2    +      -       -      +
    716A  LYS*     3.1    49.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 713 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    631A  CYS*     4.9     0.7    -      -       -      -
    709A  ALA      3.3     8.5    +      -       -      +
    710A  ALA*     3.1    17.5    +      -       -      -
    712A  HIS*     1.3    79.5    -      -       +      +
    714A  CYS*     1.3    58.6    +      -       -      +
    716A  LYS*     3.1    30.8    +      -       -      +
    717A  ALA*     2.8    29.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 714 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    620A  VAL*     3.7    26.9    -      -       +      -
    623A  GLN      3.8    16.8    -      -       -      -
    631A  CYS*     2.0    49.5    -      -       -      -
    637A  ILE*     5.3     0.4    -      -       -      +
    710A  ALA      3.0    19.7    +      -       -      +
    711A  VAL*     3.7     1.3    -      -       -      +
    713A  THR*     1.3    76.2    -      -       -      +
    715A  VAL*     1.3    59.9    +      -       -      +
    717A  ALA*     3.3     3.9    +      -       -      +
    718A  THR*     3.0    27.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 715 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    507A  PHE*     5.2     1.1    -      -       +      -
    546A  LYS*     5.3     2.7    -      -       +      -
    547A  PRO*     3.7    28.9    -      -       +      -
    610A  VAL*     5.0     4.0    -      -       +      -
    614A  THR*     4.4    14.4    -      -       +      +
    620A  VAL*     4.0    20.0    -      -       +      -
    711A  VAL*     2.9    31.3    +      -       +      +
    712A  HIS*     3.8     5.4    -      -       -      +
    714A  CYS*     1.3    74.1    -      -       -      +
    716A  LYS*     1.3    65.9    -      -       +      +
    718A  THR*     3.1     6.5    +      -       -      -
    719A  PHE*     3.1    47.4    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 716 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    400A  ANP      3.3    32.1    +      -       -      +
    546A  LYS*     5.0    12.8    -      -       +      +
    548A  GLU*     4.5     2.5    -      -       -      +
    712A  HIS*     3.1    45.4    +      -       +      +
    713A  THR*     3.1    30.6    +      -       -      +
    715A  VAL*     1.3    78.3    -      -       +      +
    717A  ALA*     1.3    61.2    +      -       -      +
    719A  PHE*     3.4     5.8    +      -       -      +
    720A  HIS*     3.2    22.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 717 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    631A  CYS*     4.6     5.8    -      -       -      -
    634A  ALA*     4.8     6.4    -      -       +      +
    637A  ILE*     4.0    18.7    -      -       +      +
    713A  THR      2.8    15.8    +      -       -      +
    714A  CYS*     3.5    12.8    -      -       -      +
    715A  VAL      3.2     0.2    -      -       -      -
    716A  LYS*     1.3    73.3    -      -       -      +
    718A  THR*     1.3    58.4    +      -       -      +
    720A  HIS*     3.3     8.8    +      -       -      +
    721A  ALA*     3.0    28.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 718 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    606A  TRP*     3.8    21.7    -      -       +      -
    610A  VAL*     5.0     9.2    -      -       +      -
    620A  VAL*     3.4    19.5    -      -       +      +
    621A  PRO*     4.0     5.7    +      -       +      +
    622A  PHE*     4.1    20.9    -      -       +      -
    623A  GLN      4.4     2.4    +      -       -      -
    637A  ILE*     4.2    15.1    -      -       +      +
    641A  ILE*     4.2     1.0    -      -       +      +
    714A  CYS      3.0    14.6    +      -       -      -
    715A  VAL*     3.1     8.5    +      -       -      -
    717A  ALA*     1.3    76.7    -      -       -      +
    719A  PHE*     1.3    64.9    +      -       -      +
    721A  ALA*     3.3     8.1    +      -       -      +
    722A  PHE*     3.1    20.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 719 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    544A  ASP*     5.5     4.0    -      -       -      +
    545A  LEU      3.4    29.2    -      -       -      -
    546A  LYS*     3.6    31.9    -      -       +      -
    547A  PRO*     4.5     3.1    -      -       +      -
    606A  TRP*     4.7     9.0    -      +       -      -
    607A  SER*     3.6    24.0    -      -       -      -
    610A  VAL*     3.5    40.4    -      -       +      -
    611A  ILE*     5.0     0.9    -      -       +      -
    715A  VAL*     3.1    42.8    +      -       +      +
    716A  LYS      3.9     3.8    -      -       -      +
    718A  THR*     1.3    75.9    -      -       -      +
    720A  HIS*     1.3    66.6    +      -       -      +
    722A  PHE*     3.2    11.5    +      +       +      +
    723A  ASN*     3.2    26.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 720 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    634A  ALA*     4.1    13.5    -      -       +      -
    716A  LYS      3.2    11.6    +      -       -      +
    717A  ALA*     3.5     9.9    -      -       -      +
    719A  PHE*     1.3    75.5    -      -       -      +
    721A  ALA*     1.3    67.1    +      -       -      +
    723A  ASN*     2.8    28.0    +      -       +      +
    724A  LYS*     3.0    54.9    +      -       +      +
    727A  ARG*     5.8     3.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 721 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    634A  ALA*     3.7    21.5    -      -       -      +
    637A  ILE*     3.9    20.4    -      -       +      -
    638A  MET*     4.0     6.7    -      -       -      +
    641A  ILE*     3.9    10.8    -      -       +      -
    717A  ALA      3.0    12.8    +      -       -      +
    718A  THR      3.5     9.4    -      -       -      +
    720A  HIS*     1.3    76.5    -      -       -      +
    722A  PHE*     1.3    61.0    +      -       -      +
    724A  LYS*     3.6    14.6    +      -       -      +
    725A  TYR*     3.1    24.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 722 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    602A  SER      5.0     0.7    -      -       -      -
    603A  CYS*     4.0    28.9    -      -       +      -
    606A  TRP*     3.5    73.8    -      +       +      -
    607A  SER*     5.8     0.7    -      -       -      -
    641A  ILE*     3.8     9.4    -      -       +      +
    670A  VAL*     4.7     3.4    -      -       +      -
    718A  THR      3.1     7.2    +      -       -      +
    719A  PHE*     3.4    11.0    -      +       -      +
    720A  HIS      3.0     1.0    -      -       -      -
    721A  ALA*     1.3    75.0    -      -       -      +
    723A  ASN*     1.3    76.4    +      -       -      +
    725A  TYR*     3.5    25.9    +      +       -      -
    726A  LYS*     3.0    53.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 723 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    543A  ARG      5.3     5.9    +      -       -      -
    603A  CYS*     6.3     0.6    -      -       -      -
    719A  PHE*     3.4    15.4    +      -       -      +
    720A  HIS*     2.8    19.9    +      -       +      +
    722A  PHE*     1.3    85.5    -      -       -      +
    724A  LYS*     1.3    67.2    +      -       -      +
    726A  LYS*     2.9    17.0    +      -       -      +
    727A  ARG*     3.0    33.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 724 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    634A  ALA*     4.2    14.4    -      -       +      -
    635A  VAL*     4.6    13.2    -      -       -      +
    638A  MET*     3.0    42.8    -      -       +      +
    720A  HIS*     3.0    50.4    +      -       +      +
    721A  ALA*     3.8     7.4    -      -       -      +
    723A  ASN*     1.3    75.1    -      -       -      +
    725A  TYR*     1.3    59.1    +      -       -      +
    727A  ARG*     2.9    17.7    +      -       -      +
    728A  GLU*     2.9    32.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 725 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    638A  MET*     3.6    24.1    -      -       +      -
    641A  ILE*     3.9    10.8    -      -       +      -
    642A  LYS*     3.8    34.1    -      -       +      -
    670A  VAL*     3.5    31.4    +      -       +      +
    721A  ALA      3.1    15.1    +      -       -      +
    722A  PHE*     3.5    28.3    -      +       -      -
    724A  LYS*     1.3    78.3    -      -       -      +
    726A  LYS*     1.3    89.9    +      -       +      +
    728A  GLU*     3.1    23.9    -      -       -      +
    729A  GLY*     3.8     4.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 726 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    600A  ASP*     3.0    27.8    -      -       -      +
    602A  SER*     3.5    18.1    +      -       -      -
    603A  CYS*     3.9    10.3    -      -       -      -
    670A  VAL*     5.8     1.4    -      -       -      +
    722A  PHE*     3.0    47.9    +      -       +      +
    723A  ASN*     2.9     9.6    +      -       -      +
    725A  TYR*     1.3   101.2    +      -       +      +
    727A  ARG*     1.3    67.9    +      -       -      +
    728A  GLU*     3.7     0.2    -      -       -      -
    729A  GLY*     3.4    12.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 727 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    720A  HIS*     5.8     3.2    -      -       -      -
    723A  ASN*     3.0    33.6    +      -       -      +
    724A  LYS*     2.9    17.3    +      -       -      +
    726A  LYS*     1.3    82.5    -      -       -      +
    728A  GLU*     1.3    66.6    +      -       +      +
    729A  GLY*     3.6     4.1    -      -       -      +
----------------------------------------------------------
 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