Contacts of the helix formed by residues 473 - 490 (chain B) in PDB entry 6AHU


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 473 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    469B  GLU      3.6    13.4    +      -       -      +
    470B  THR*     3.3    16.1    +      -       -      +
    471B  CYS      3.3     1.0    -      -       -      -
    472B  LYS*     1.3    76.9    -      -       +      +
    474B  PRO*     1.3    70.2    -      -       +      +
    475B  ASP*     3.3     7.0    +      -       +      +
    476B  SER*     3.5    17.3    +      -       -      +
    477B  VAL*     3.4    17.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 474 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    472B  LYS      3.4     8.5    -      -       -      +
    473B  LYS*     1.3    81.8    -      -       +      +
    475B  ASP*     1.3    71.4    +      -       -      +
    476B  SER      3.4     0.4    -      -       -      -
    477B  VAL*     3.6    11.0    +      -       +      +
    478B  SER*     3.6    20.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 475 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    473B  LYS*     3.2     5.0    -      -       +      -
    474B  PRO*     1.3    85.1    -      -       -      +
    476B  SER*     1.3    61.1    +      -       -      +
    478B  SER*     3.7     3.9    +      -       -      -
    479B  LEU*     3.1    28.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 476 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    452B  VAL*     5.6     1.4    -      -       -      +
    467B  TRP*     5.6     2.6    -      -       -      -
    470B  THR*     3.6    39.9    +      -       -      +
    473B  LYS*     3.5    14.6    +      -       -      +
    474B  PRO      3.4     0.4    -      -       -      -
    475B  ASP*     1.3    76.0    -      -       -      +
    477B  VAL*     1.3    59.4    +      -       -      +
    478B  SER      3.5     0.2    -      -       -      -
    479B  LEU*     3.7    12.6    -      -       -      +
    480B  HIS*     3.1    28.1    +      -       -      +
    550B  HIS*     5.9     1.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 477 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    452B  VAL*     4.3    18.1    -      -       +      +
    453B  HIS*     3.6    32.1    +      -       +      +
    471B  CYS*     3.4    40.8    -      -       -      +
    473B  LYS      3.4     9.9    -      -       -      +
    474B  PRO*     3.6    12.1    +      -       +      +
    475B  ASP      3.2     0.8    -      -       -      -
    476B  SER*     1.3    77.9    -      -       -      +
    478B  SER*     1.3    61.9    +      -       -      +
    479B  LEU      3.4     0.3    +      -       -      -
    480B  HIS*     3.5    10.7    +      -       -      +
    481B  CYS*     3.6    10.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 478 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    474B  PRO      3.6    12.6    +      -       -      -
    475B  ASP*     4.3     3.6    -      -       -      -
    477B  VAL*     1.3    79.7    -      -       -      +
    479B  LEU*     1.3    62.6    +      -       -      +
    480B  HIS      3.4     0.2    -      -       -      -
    481B  CYS*     3.6     8.6    +      -       -      +
    482B  ARG*     3.5    36.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 479 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    475B  ASP      3.1    19.4    +      -       -      +
    476B  SER*     3.9    11.9    -      -       -      +
    477B  VAL      3.2     0.4    -      -       -      -
    478B  SER*     1.3    76.5    -      -       -      +
    480B  HIS*     1.3    59.3    +      -       -      +
    482B  ARG*     3.2    17.3    +      -       +      +
    483B  GLN*     3.0    39.8    +      -       -      +
    547B  GLU*     3.3    52.5    -      -       +      +
    548B  CYS*     4.4     2.0    -      -       -      +
    550B  HIS*     5.0    13.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 480 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    449B  ALA*     4.1     9.7    -      -       +      +
    450B  ALA*     2.5    30.9    +      -       +      -
    452B  VAL*     4.0    24.7    -      -       +      -
    467B  TRP*     4.3     9.9    -      +       +      -
    476B  SER      3.1    17.9    +      -       -      +
    477B  VAL      3.9     5.2    -      -       -      +
    478B  SER      3.4     0.2    -      -       -      -
    479B  LEU*     1.3    74.3    -      -       -      +
    481B  CYS*     1.3    60.6    +      -       -      +
    483B  GLN*     3.4    19.5    +      -       -      +
    484B  GLU*     3.1    31.1    +      -       +      +
    507B  LEU*     5.0     2.5    -      -       +      -
    508B  THR*     3.3    47.2    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 481 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    453B  HIS*     5.4     9.2    -      -       -      +
    477B  VAL      3.6     9.5    +      -       -      +
    478B  SER*     3.6    11.6    +      -       -      +
    479B  LEU      3.2     0.4    -      -       -      -
    480B  HIS*     1.3    79.9    -      -       -      +
    482B  ARG*     1.3    58.4    +      -       +      +
    484B  GLU*     3.4     8.5    +      -       -      +
    485B  ALA*     3.0    29.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 482 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    478B  SER*     3.5    24.7    +      -       -      +
    479B  LEU*     3.2    18.8    +      -       +      +
    481B  CYS*     1.3    76.6    -      -       +      +
    483B  GLN*     1.3    64.0    +      -       -      +
    485B  ALA*     4.0     6.3    -      -       -      +
    486B  ILE*     3.4    22.7    +      -       +      +
    547B  GLU*     2.8    34.6    +      -       -      -
    548B  CYS*     3.6    24.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 483 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    479B  LEU*     3.0    26.4    +      -       -      +
    480B  HIS*     3.8    20.9    +      -       +      +
    481B  CYS      3.3     0.2    -      -       -      -
    482B  ARG*     1.3    78.5    -      -       -      +
    484B  GLU*     1.3    59.0    +      -       -      +
    486B  ILE*     4.5     1.1    -      -       -      +
    487B  PHE*     3.3    21.5    +      -       -      +
    505B  LEU*     4.5     5.1    -      -       +      +
    506B  GLY      3.5     6.8    +      -       -      +
    507B  LEU*     3.3    38.1    -      -       +      +
    508B  THR*     4.2     1.7    +      -       -      -
    547B  GLU      4.1     3.2    +      -       -      -
    548B  CYS*     2.9    45.3    +      -       -      +
    550B  HIS*     3.5    25.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 484 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    449B  ALA*     3.8    36.5    +      -       +      +
    450B  ALA      5.1     1.6    -      -       -      +
    451B  SER*     6.0     0.7    -      -       -      -
    480B  HIS*     3.1    25.3    +      -       +      +
    481B  CYS*     3.9     8.1    -      -       -      +
    483B  GLN*     1.3    76.7    -      -       -      +
    485B  ALA*     1.3    56.3    +      -       -      +
    487B  PHE*     3.2     8.1    +      -       +      -
    488B  GLU*     2.7    59.9    +      -       +      +
    507B  LEU*     5.1     0.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 485 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    481B  CYS*     3.0    21.1    +      -       -      +
    482B  ARG*     4.0     7.6    -      -       -      +
    483B  GLN      3.4     0.2    -      -       -      -
    484B  GLU*     1.3    77.4    -      -       -      +
    486B  ILE*     1.3    59.2    -      -       +      +
    488B  GLU*     3.5    10.1    +      -       -      +
    489B  LEU*     2.9    25.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 486 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    482B  ARG*     3.4     9.0    +      -       +      +
    483B  GLN*     4.5     2.9    -      -       -      +
    484B  GLU      3.4     0.2    -      -       -      -
    485B  ALA*     1.3    77.2    -      -       +      +
    487B  PHE*     1.3    57.4    +      -       -      +
    489B  LEU*     3.1    16.6    +      -       +      +
    490B  LEU*     3.0    29.9    +      -       +      +
    505B  LEU*     3.9    22.7    -      -       +      -
    539B  LEU*     4.0    31.0    -      -       +      -
    545B  PRO*     4.8    10.3    -      -       +      -
    548B  CYS*     3.7    32.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 487 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    443B  LEU*     3.2    44.2    -      -       +      -
    444B  THR*     3.5    23.6    -      -       +      +
    447B  ILE*     3.2    37.5    -      -       +      -
    448B  LYS*     4.8     4.3    -      -       -      -
    449B  ALA*     4.9     9.0    -      -       +      -
    483B  GLN      3.3    19.4    +      -       -      +
    484B  GLU*     3.2     8.7    +      -       +      +
    486B  ILE*     1.3    79.5    -      -       -      +
    488B  GLU*     1.3    66.2    +      -       +      +
    490B  LEU*     3.4    36.3    +      -       +      +
    505B  LEU*     5.2     2.6    -      -       +      +
    507B  LEU*     3.8    26.9    -      -       +      -
    599B  LEU*     3.9    11.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 488 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    444B  THR*     4.8     5.5    -      -       +      +
    484B  GLU*     2.7    49.9    +      -       +      +
    485B  ALA*     4.0     7.7    -      -       -      +
    487B  PHE*     1.3    75.4    -      -       +      +
    489B  LEU*     1.3    62.2    +      -       -      +
    490B  LEU      3.2     0.7    -      -       -      -
    491B  GLY*     3.4    12.8    +      -       -      +
    492B  GLY      4.2     1.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 489 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    485B  ALA      2.9    18.1    +      -       -      +
    486B  ILE*     3.1    24.4    +      -       +      +
    488B  GLU*     1.3    74.5    -      -       -      +
    490B  LEU*     1.3    59.0    +      -       -      +
    491B  GLY      3.2     0.9    -      -       -      -
    492B  GLY*     3.0    20.8    +      -       -      +
    493B  ILE*     3.2    15.8    +      -       +      +
    532B  ASP*     4.6    12.1    -      -       +      +
    535B  LYS*     3.3    51.4    -      -       +      +
    536B  VAL*     3.8    21.8    -      -       +      +
    539B  LEU*     4.9     9.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 490 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    440B  HIS*     2.9    49.7    +      -       +      +
    443B  LEU*     4.8     7.6    -      -       +      -
    444B  THR*     3.7    12.1    +      -       -      +
    486B  ILE*     3.0    21.3    +      -       +      +
    487B  PHE*     3.4    40.2    -      -       +      +
    488B  GLU      3.2     0.6    -      -       -      -
    489B  LEU*     1.3    75.4    -      -       -      +
    491B  GLY*     1.3    58.6    +      -       -      +
    493B  ILE*     2.9    33.8    +      -       +      +
    499B  ILE*     6.2     1.6    -      -       +      -
    505B  LEU*     5.5     9.0    -      -       +      -
    539B  LEU*     4.5     9.2    -      -       +      -
    599B  LEU*     5.0     3.6    -      -       +      -
    618B  TRP*     4.8    13.2    -      -       +      -
----------------------------------------------------------
 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