Contacts of the helix formed by residues 66 - 84 (chain D) in PDB entry 3DCG


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 PRO 66 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94C  SER*     3.7    16.2    -      -       -      +
     23D  SER*     3.9     1.1    -      -       -      -
     24D  SER*     3.5    13.2    -      -       -      +
     25D  ASP*     3.7     5.4    -      -       +      +
     64D  GLU      3.5     9.4    -      -       -      +
     65D  ILE*     1.3    90.2    -      -       +      +
     67D  SER*     1.3    55.3    +      -       -      +
     68D  HIS*     3.7    21.8    -      -       +      +
     69D  VAL*     3.1    16.3    +      -       +      -
     70D  LEU*     2.8    31.0    +      -       -      +
    102D  GLU*     4.4     9.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 67 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93C  PHE*     3.7    18.6    -      -       -      -
     94C  SER*     3.6    15.0    +      -       -      -
     23D  SER*     3.6     8.4    -      -       -      -
     25D  ASP*     2.5    40.9    +      -       -      -
     27D  HIS*     2.6    21.8    +      -       -      +
     29D  PHE*     3.7     6.2    -      -       -      -
     66D  PRO*     1.3    71.1    -      -       -      +
     68D  HIS*     1.3    57.3    +      -       -      +
     71D  SER*     2.9    35.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 68 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93C  PHE*     4.1     9.2    -      -       +      -
     94C  SER*     2.6    45.1    +      -       -      +
     95C  SER      4.0    12.3    -      -       -      -
     96C  PRO*     3.9    12.1    -      -       +      -
     97C  PRO*     3.6     7.1    -      -       +      +
     66D  PRO*     3.7    20.3    -      -       +      +
     67D  SER*     1.3    79.0    -      -       -      +
     69D  VAL*     1.3    63.7    +      -       +      +
     71D  SER*     3.3    14.8    +      -       -      -
     72D  LYS*     3.9    12.6    +      -       -      +
     99D  ILE*     3.6    30.8    -      -       +      +
    102D  GLU*     2.8    30.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 69 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65D  ILE*     3.8     7.6    -      -       +      -
     66D  PRO*     3.1    19.0    +      -       +      +
     68D  HIS*     1.3   100.5    -      -       +      +
     70D  LEU*     1.3    60.4    +      -       -      +
     71D  SER      3.2     1.1    -      -       -      -
     72D  LYS*     2.9    23.4    +      -       -      +
     73D  VAL*     3.1    14.6    +      -       +      +
     99D  ILE*     5.0     6.1    -      -       +      +
    102D  GLU*     3.6    28.9    -      -       +      +
    103D  LEU*     3.9    15.0    -      -       +      +
    106D  ALA*     3.5    31.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 70 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21D  LEU*     4.2    26.5    -      -       +      -
     22D  ILE      3.9     7.0    -      -       -      +
     23D  SER*     3.6    27.1    -      -       -      +
     29D  PHE*     3.5    30.5    -      -       +      -
     62D  PHE*     4.2    17.0    -      -       +      -
     65D  ILE*     3.9    18.3    -      -       +      +
     66D  PRO      2.8    20.3    +      -       -      +
     69D  VAL*     1.3    72.4    -      -       -      +
     71D  SER*     1.3    60.6    +      -       -      +
     73D  VAL*     3.4    13.4    +      -       +      +
     74D  CYS*     3.2    32.3    +      -       -      -
    110D  LEU*     4.9     9.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 71 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15C  PHE*     3.7     9.8    -      -       -      -
     93C  PHE*     3.6    31.9    -      -       -      -
     29D  PHE*     3.7    17.3    -      -       -      -
     67D  SER      2.9    20.3    +      -       -      -
     68D  HIS*     3.3    10.4    +      -       -      -
     70D  LEU*     1.3    78.9    -      -       -      +
     72D  LYS*     1.3    62.8    +      -       -      +
     74D  CYS*     3.3     4.9    +      -       -      +
     75D  MET*     3.2    34.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 72 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49A  GLN*     4.8     8.7    +      -       -      -
     70C  GLN      3.1    26.5    +      -       -      -
     68D  HIS      4.1     7.4    -      -       -      +
     69D  VAL      2.9    10.0    +      -       -      +
     71D  SER*     1.3    77.7    +      -       -      +
     73D  VAL*     1.3    65.6    +      -       -      +
     75D  MET*     3.3    18.8    +      -       +      +
     76D  TYR*     3.0    18.2    +      -       -      +
     93D  PHE*     3.6    31.2    -      -       +      -
     94D  PRO*     2.9    34.9    +      -       -      +
     95D  ILE*     4.8     2.7    -      -       +      +
     96D  ALA      5.6     0.9    -      -       -      +
     99D  ILE*     3.6    25.8    -      -       +      -
    103D  LEU*     4.2    16.6    -      -       +      -
    145E  LEU*     5.1     0.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 73 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65D  ILE*     5.4     0.2    -      -       +      -
     69D  VAL      3.1    17.6    +      -       -      +
     70D  LEU*     3.6    13.2    -      -       +      +
     71D  SER      3.3     0.2    -      -       -      -
     72D  LYS*     1.3    76.0    -      -       -      +
     74D  CYS*     1.3    57.0    +      -       -      +
     76D  TYR*     2.9    19.2    +      -       -      +
     77D  PHE*     3.0    42.5    +      -       +      -
    103D  LEU*     3.8    18.2    -      -       +      -
    106D  ALA*     4.4    11.9    -      -       +      -
    110D  LEU*     3.6    28.5    -      -       +      -
    112D  CYS*     4.3     1.6    -      -       -      -
    145E  LEU*     4.0    19.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 74 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15C  PHE*     3.6    26.2    -      -       +      -
     21D  LEU*     4.1    18.4    -      -       -      -
     29D  PHE*     4.0    22.2    -      -       -      -
     31D  VAL*     3.8    25.7    -      -       +      +
     70D  LEU*     3.2    18.0    +      -       -      -
     71D  SER      3.3     3.3    +      -       -      +
     73D  VAL*     1.3    75.2    -      -       -      +
     75D  MET*     1.3    61.2    +      -       -      +
     77D  PHE*     3.3    22.2    +      -       -      +
     78D  THR*     3.4    16.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 75 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49A  GLN*     3.9    22.2    -      -       +      +
      6C  MET*     4.0    21.1    -      -       +      -
     15C  PHE*     3.7    13.9    -      -       +      -
     69C  PRO      3.4    18.4    -      -       -      +
     70C  GLN      3.9     3.4    -      -       -      +
     72C  PRO*     3.7    28.3    -      -       +      -
     93C  PHE*     5.3     2.0    -      -       +      -
     71D  SER*     3.2    27.4    +      -       -      +
     72D  LYS*     3.6    34.3    -      -       +      +
     73D  VAL      3.3     0.2    -      -       -      -
     74D  CYS*     1.3    76.1    -      -       -      +
     76D  TYR*     1.3    58.4    +      -       -      +
     78D  THR*     3.5     3.2    +      -       -      +
     79D  TYR*     3.0    30.0    +      -       -      +
     93D  PHE*     3.9     9.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 76 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38D  THR*     4.0    17.9    -      -       +      -
     72D  LYS      3.0    12.3    +      -       -      +
     73D  VAL      2.9    11.5    +      -       -      +
     75D  MET*     1.3    74.3    -      -       -      +
     77D  PHE*     1.3    66.7    +      +       -      +
     79D  TYR*     3.2    10.2    +      +       -      +
     80D  LYS*     2.7    58.8    +      -       +      +
     93D  PHE*     3.7    15.6    -      +       +      -
    112D  CYS*     3.4    19.3    +      -       +      -
    142E  VAL*     3.9    11.4    -      -       +      -
    143E  GLY      2.7    29.5    +      -       -      -
    144E  SER*     3.4     9.7    -      -       -      -
    145E  LEU*     3.5    36.6    -      -       +      -
    148E  LEU*     3.8    15.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 77 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21D  LEU*     4.2    22.2    -      -       +      -
     31D  VAL*     4.7     7.0    -      -       +      -
     35D  HIS*     3.4    22.4    -      -       +      +
     36D  ALA*     3.8    22.0    -      -       +      -
     38D  THR*     3.7    19.9    +      -       +      -
     39D  SER*     3.9    33.0    -      -       -      -
     42D  ILE*     4.2     7.0    -      -       +      -
     73D  VAL*     3.0    38.8    +      -       +      -
     74D  CYS*     3.3    21.7    +      -       +      +
     76D  TYR*     1.3    77.6    -      +       -      +
     78D  THR*     1.3    57.9    +      -       -      +
     80D  LYS*     3.7     1.7    -      -       -      +
     81D  VAL*     3.0    35.4    +      -       -      +
    110D  LEU*     4.9     1.6    -      -       +      -
    112D  CYS*     4.1    11.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 78 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4C  PHE*     3.6    37.7    -      -       +      -
     15C  PHE*     5.2    11.0    -      -       -      +
     17C  ASP*     5.3     2.5    -      -       -      +
     69C  PRO*     3.8    12.6    -      -       +      -
     31D  VAL*     5.9     1.2    -      -       -      +
     35D  HIS*     3.8    26.1    +      -       +      +
     74D  CYS      3.4    10.8    +      -       -      -
     75D  MET*     3.8     6.9    -      -       -      -
     76D  TYR      3.3     0.4    -      -       -      -
     77D  PHE*     1.3    74.4    -      -       -      +
     79D  TYR*     1.3    61.2    +      -       -      +
     81D  VAL*     3.4     1.7    +      -       -      +
     82D  ARG*     3.0    30.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 79 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69C  PRO*     3.8    12.5    -      -       +      +
     70C  GLN*     3.0    31.6    -      -       +      -
     75D  MET      3.0    18.7    +      -       -      +
     76D  TYR*     3.4    12.6    -      +       -      +
     78D  THR*     1.3    76.2    -      -       -      +
     80D  LYS*     1.3    63.6    +      -       -      +
     82D  ARG      3.3     0.7    +      -       -      -
     83D  TYR*     3.0    52.9    +      +       -      +
     90D  ILE*     3.2    15.5    -      -       +      +
     91D  PRO*     2.7    29.1    +      -       +      -
     92D  GLU*     4.5     0.2    -      -       -      -
     93D  PHE*     3.7    37.1    +      +       +      +
    142E  VAL*     3.5    26.0    -      -       +      +
    148E  LEU*     4.5     8.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 80 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38D  THR*     3.6    30.7    -      -       +      +
     76D  TYR*     2.7    48.6    +      -       +      +
     77D  PHE      3.7     4.3    -      -       -      +
     79D  TYR*     1.3    73.7    -      -       -      +
     81D  VAL*     1.3    57.5    +      -       +      +
     84D  THR*     3.0    51.4    +      -       -      +
    112D  CYS*     5.4     1.8    -      -       -      -
    142E  VAL*     3.6    34.4    +      -       +      +
    144E  SER*     5.8     1.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 81 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34D  GLU      4.9     3.6    -      -       -      +
     35D  HIS*     4.0    39.9    -      -       +      +
     38D  THR*     4.0    15.7    -      -       -      +
     77D  PHE      3.0    21.4    +      -       -      +
     78D  THR      4.0     3.1    -      -       -      +
     80D  LYS*     1.3    78.5    -      -       +      +
     82D  ARG*     1.3    63.5    +      -       -      +
     84D  THR*     4.2    13.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 82 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2C  ASP*     2.7    42.5    +      -       -      +
      4C  PHE*     3.6    32.1    -      -       +      -
     64C  SER*     5.9     0.6    +      -       -      -
     69C  PRO*     4.0     6.5    -      -       +      +
     78D  THR*     3.0    19.3    +      -       +      +
     79D  TYR      3.5     4.7    -      -       -      +
     80D  LYS      3.3     0.2    -      -       -      -
     81D  VAL*     1.3    80.9    -      -       +      +
     83D  TYR*     1.3    93.9    +      -       +      +
     84D  THR      3.7     4.0    +      -       -      +
     86D  SER*     5.1     2.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 83 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68C  ARG*     5.4     2.1    -      -       -      +
     69C  PRO*     4.1    11.5    -      -       +      +
     70C  GLN*     3.7    25.6    +      -       -      -
     79D  TYR*     3.0    40.3    +      +       -      +
     82D  ARG*     1.3   105.5    +      -       +      +
     84D  THR*     1.3    61.9    +      -       -      +
     86D  SER*     3.2    25.9    -      -       -      -
     89D  GLU      5.7     0.4    -      -       -      -
     90D  ILE*     3.5    29.1    -      -       +      +
     91D  PRO*     3.5    32.9    -      -       +      +
    140E  ASN      3.1    16.6    -      -       -      +
    142E  VAL*     3.6     7.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 84 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80D  LYS*     3.0    40.5    +      -       -      +
     81D  VAL*     4.5    10.5    -      -       -      +
     82D  ARG      3.5     5.4    -      -       -      +
     83D  TYR*     1.3    77.0    -      -       -      +
     85D  ASN*     1.3    81.7    +      -       -      +
     86D  SER      3.5     0.2    +      -       -      -
    140E  ASN      4.0     0.7    -      -       -      -
    141E  LYS*     4.8     5.9    +      -       -      +
    142E  VAL*     3.8    14.0    +      -       -      +
----------------------------------------------------------
 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