Contacts of the helix formed by residues 608 - 624 (chain B) in PDB entry 1GKU


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 ASN 608 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    580B  SER*     2.7    27.9    +      -       -      -
    581B  ILE      3.2     4.3    -      -       -      +
    582B  LYS*     3.2    33.4    +      -       -      +
    607B  ASP*     1.3    73.0    +      -       -      +
    609B  SER*     1.3    59.5    +      -       -      +
    610B  ARG*     3.0    40.9    +      -       -      +
    611B  SER*     2.7    31.9    +      -       -      -
    612B  ARG*     3.9     1.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 609 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    552B  SER      5.2     2.6    +      -       -      -
    553B  ILE      5.6     0.2    +      -       -      -
    555B  HIS      3.6    14.7    +      -       -      -
    556B  VAL*     2.9    34.5    +      -       -      -
    580B  SER*     3.8     7.9    -      -       -      -
    581B  ILE*     3.4    14.8    +      -       -      +
    608B  ASN*     1.3    73.8    -      -       -      +
    610B  ARG*     1.3    65.8    +      -       -      +
    611B  SER      3.1     0.2    -      -       -      -
    612B  ARG*     3.0    14.8    +      -       -      +
    613B  ILE*     2.8    29.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 610 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15B  ALA*     5.7     8.7    -      -       +      +
     16B  ALA*     6.3     2.9    -      -       -      +
    580B  SER*     3.4    12.1    -      -       -      +
    608B  ASN*     3.0    32.4    +      -       -      +
    609B  SER*     1.3    77.1    -      -       -      +
    611B  SER*     1.3    66.8    +      -       -      +
    613B  ILE*     3.2    11.7    +      -       +      +
    614B  GLU*     2.7    62.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 611 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    533B  ASP*     3.5    18.7    -      -       -      +
    534B  GLY*     4.3    14.8    +      -       -      -
    607B  ASP*     5.6     0.7    -      -       -      +
    608B  ASN*     2.7    26.2    +      -       -      -
    610B  ARG*     1.3    78.4    -      -       -      +
    612B  ARG*     1.3    61.3    +      -       -      +
    613B  ILE      2.9     1.8    -      -       -      -
    614B  GLU*     2.7    40.1    +      -       -      +
    615B  ALA*     2.8    11.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 612 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    514B  PRO*     5.8     0.4    -      -       -      +
    534B  GLY      2.7    35.4    +      -       -      +
    535B  ALA*     3.5    23.7    -      -       -      +
    536B  VAL*     4.3    11.1    +      -       -      +
    550B  THR*     4.8     0.4    -      -       -      +
    551B  ALA*     2.6    35.4    +      -       -      +
    552B  SER*     4.0    17.8    -      -       -      +
    553B  ILE*     3.5    32.3    -      -       +      +
    556B  VAL*     5.8     2.0    -      -       +      -
    608B  ASN      4.7     0.9    -      -       -      +
    609B  SER*     3.0    22.2    +      -       -      +
    611B  SER*     1.3    80.0    +      -       -      +
    613B  ILE*     1.3    58.8    +      -       +      +
    615B  ALA*     3.6     3.0    +      -       -      +
    616B  LEU*     2.9    46.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 613 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15B  ALA*     5.7     2.7    -      -       +      -
    556B  VAL*     3.6    32.3    -      -       +      +
    557B  VAL*     5.7     1.3    -      -       +      -
    580B  SER*     5.7     0.9    -      -       -      -
    609B  SER*     2.8    29.7    +      -       -      +
    610B  ARG*     3.3    11.7    -      -       +      +
    612B  ARG*     1.3    76.7    -      -       +      +
    614B  GLU*     1.3    60.6    +      -       +      +
    616B  LEU*     3.9    11.8    -      -       +      +
    617B  ARG*     2.9    56.7    +      -       -      +
    643B  LEU*     5.0     1.6    -      -       +      -
    646B  LEU*     3.4    35.9    -      -       +      +
    647B  LEU*     4.7     3.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 614 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    533B  ASP*     4.3    15.4    -      -       -      +
    610B  ARG*     2.7    54.5    +      -       +      +
    611B  SER*     2.7    26.9    +      -       -      +
    613B  ILE*     1.3    71.4    -      -       +      +
    615B  ALA*     1.3    61.2    +      -       -      +
    617B  ARG*     3.3    13.3    +      -       -      +
    618B  LYS*     3.1    23.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 615 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    532B  LEU*     3.8    19.4    -      -       +      +
    533B  ASP*     3.8    18.7    +      -       -      +
    534B  GLY      4.6     1.1    -      -       -      -
    535B  ALA*     3.7    26.2    -      -       +      -
    611B  SER      2.8    10.0    +      -       -      +
    612B  ARG      3.7     7.9    -      -       -      +
    614B  GLU*     1.3    77.6    -      -       -      +
    616B  LEU*     1.3    57.4    +      -       -      +
    618B  LYS*     3.3     6.7    +      -       -      +
    619B  LEU*     3.0    34.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 616 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    508B  LEU*     4.0     8.5    -      -       +      +
    510B  ILE*     3.5    33.0    -      -       +      -
    550B  THR*     4.9    14.4    -      -       +      -
    551B  ALA      5.3     1.6    -      -       -      +
    552B  SER*     5.0     5.6    -      -       -      -
    556B  VAL*     4.6     5.4    -      -       +      -
    612B  ARG*     2.9    42.7    +      -       -      +
    613B  ILE*     3.9    15.3    -      -       +      +
    614B  GLU      3.3     0.2    -      -       -      -
    615B  ALA*     1.3    72.6    -      -       +      +
    617B  ARG*     1.3    60.7    +      -       -      +
    619B  LEU*     3.7     9.7    -      -       +      +
    620B  ALA*     2.9    31.0    +      -       -      +
    643B  LEU*     3.9    26.9    -      -       +      -
    647B  LEU*     3.8    12.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 617 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14B  ALA*     3.4    30.1    -      -       -      +
     15B  ALA*     4.1    13.3    -      -       -      +
     34B  LEU      5.4     7.2    -      -       -      -
     35B  CYS*     4.5     5.6    -      -       -      -
     37B  PHE*     4.5     9.6    -      -       +      -
    613B  ILE*     2.9    43.7    +      -       -      +
    614B  GLU*     3.5    11.5    -      -       -      +
    616B  LEU*     1.3    77.8    -      -       -      +
    618B  LYS*     1.3    57.4    +      -       -      +
    620B  ALA*     3.3     4.1    +      -       -      +
    621B  HIS*     2.9    29.7    +      -       -      +
    646B  LEU*     3.2    37.7    +      -       -      +
    647B  LEU*     3.8     9.6    -      -       +      +
    650B  CYS*     4.0    16.5    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 618 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37B  PHE*     3.9    17.5    -      -       +      -
     70B  ARG*     3.3    46.0    -      -       -      +
     72B  GLU*     3.4    14.9    +      -       -      +
    532B  LEU*     4.4    19.3    -      -       +      +
    533B  ASP*     4.7    13.4    +      -       -      -
    614B  GLU      3.1    12.4    +      -       -      +
    615B  ALA*     3.6     9.2    -      -       -      +
    617B  ARG*     1.3    77.0    -      -       -      +
    619B  LEU*     1.3    58.7    +      -       +      +
    621B  HIS*     3.3     2.6    +      -       -      +
    622B  ASP*     3.0    30.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 619 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67B  ARG*     6.3     0.4    -      -       -      +
    508B  LEU*     3.9    19.0    -      -       +      +
    530B  LYS*     6.0     1.3    -      -       +      -
    532B  LEU*     3.3    31.9    -      -       +      -
    535B  ALA*     5.5     2.0    -      -       +      -
    537B  VAL*     4.7    19.1    -      -       +      -
    548B  MET*     4.4    22.1    -      -       -      +
    550B  THR*     4.3    23.6    -      -       +      +
    615B  ALA*     3.0    23.1    +      -       +      +
    616B  LEU*     3.7    10.3    -      -       +      +
    618B  LYS*     1.3    76.7    -      -       +      +
    620B  ALA*     1.3    58.7    +      -       -      +
    622B  ASP*     3.4     9.7    +      -       +      +
    623B  ALA*     3.0    30.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 620 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    508B  LEU*     4.0     2.9    -      -       +      +
    616B  LEU      2.9    18.2    +      -       -      +
    617B  ARG      3.6     4.5    -      -       -      +
    619B  LEU*     1.3    75.1    -      -       -      +
    621B  HIS*     1.3    59.1    +      -       -      +
    623B  ALA*     4.5     1.3    -      -       -      +
    624B  GLU*     2.7    34.0    +      -       -      -
    625B  PHE      4.2     0.3    +      -       -      -
    626B  VAL*     3.7    29.1    -      -       +      +
    647B  LEU*     4.2    13.0    -      -       +      -
    650B  CYS*     3.8    22.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 621 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35B  CYS*     3.7    21.2    +      -       -      -
     37B  PHE*     3.3    45.4    -      +       +      -
     40B  ASP*     2.9    43.0    +      -       -      -
     66B  LYS*     2.9    43.7    +      -       +      +
     70B  ARG*     3.5    14.6    +      -       -      -
    617B  ARG      2.9    18.2    +      -       -      +
    618B  LYS      3.3     2.7    +      -       -      +
    620B  ALA*     1.3    77.9    -      -       -      +
    622B  ASP*     1.3    59.4    +      -       -      +
    624B  GLU*     3.7     7.8    -      -       -      +
    650B  CYS*     3.9    11.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 622 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59B  ALA      5.4     0.5    -      -       -      +
     63B  MET*     3.5    37.5    +      -       +      +
     66B  LYS*     3.3    26.0    -      -       -      +
     67B  ARG*     3.6    18.4    +      -       -      +
     70B  ARG*     2.7    39.5    +      -       -      -
     72B  GLU*     5.1     0.5    -      -       -      +
    506B  PRO*     4.8     1.2    -      -       -      +
    548B  MET*     5.3     2.5    -      -       +      -
    618B  LYS*     3.0    18.2    +      -       -      +
    619B  LEU*     3.8    10.2    -      -       +      +
    621B  HIS*     1.3    78.2    -      -       -      +
    623B  ALA*     1.3    64.3    -      -       -      +
    624B  GLU*     4.3     1.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 623 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59B  ALA*     6.1     0.3    -      -       -      +
    506B  PRO*     4.0    24.3    -      -       -      +
    507B  ALA      4.4     4.0    -      -       -      +
    508B  LEU*     4.0     9.0    -      -       +      +
    548B  MET*     3.5    19.9    -      -       +      +
    619B  LEU      3.0    17.6    +      -       -      +
    620B  ALA      4.1     1.6    -      -       -      +
    622B  ASP*     1.3    77.0    -      -       -      +
    624B  GLU*     1.3    68.5    +      -       -      +
    625B  PHE*     2.9    28.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 624 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43B  LEU*     5.5     1.4    -      -       -      +
     62B  LYS*     5.6     6.2    -      -       -      +
     66B  LYS*     3.3    23.2    +      -       -      +
    620B  ALA      2.7    20.5    +      -       -      -
    621B  HIS      3.7    15.3    -      -       -      +
    622B  ASP      4.3     2.7    -      -       -      +
    623B  ALA*     1.3    76.2    -      -       -      +
    625B  PHE*     1.3    58.6    +      -       -      +
    626B  VAL*     5.4     0.7    -      -       -      -
    650B  CYS      3.5    15.9    -      -       -      +
    651B  GLY*     3.3    22.2    -      -       -      -
    652B  ALA*     3.3     5.2    +      -       -      +
----------------------------------------------------------
 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