Contacts of the helix formed by residues 33 - 54 (chain C) in PDB entry 6ACQ


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 33 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31C  ASP      3.4     0.4    -      -       -      -
     32C  ILE*     1.3   101.6    -      -       +      +
     34C  ASP*     1.3    66.7    +      -       -      +
     35C  GLU*     4.0    28.9    -      -       +      +
     36C  PHE*     3.3    27.2    +      -       +      +
     37C  VAL*     3.3    16.1    +      -       -      +
     73C  VAL*     3.6     8.5    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 34 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33C  LYS*     1.3    72.6    -      -       -      +
     35C  GLU*     1.3    55.6    +      -       -      +
     37C  VAL*     3.0     8.0    +      -       -      +
     38C  ASP*     2.6    48.6    +      -       -      +
     72C  THR*     5.6     1.6    -      -       -      -
     73C  VAL*     3.6    20.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 35 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33C  LYS*     4.0    23.8    -      -       +      +
     34C  ASP*     1.3    79.5    -      -       -      +
     36C  PHE*     1.3    86.3    +      -       +      +
     38C  ASP*     3.7    10.8    -      -       -      +
     39C  ARG*     2.9    29.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 36 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9C  ALA*     3.6    11.2    -      -       +      +
     31C  ASP*     3.4    33.2    -      -       -      +
     32C  ILE*     3.6    28.0    -      -       +      -
     33C  LYS*     3.3    19.5    +      -       +      +
     34C  ASP      3.1     0.2    -      -       -      -
     35C  GLU*     1.3   105.5    -      -       +      +
     37C  VAL*     1.3    65.7    +      -       -      +
     39C  ARG*     3.1    16.3    +      -       -      +
     40C  GLY      3.0    19.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 37 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9C  ALA*     4.2     8.5    -      -       -      +
     29C  LEU*     3.9    12.0    -      -       +      +
     31C  ASP*     3.9    14.3    -      -       +      +
     33C  LYS      3.3    15.9    -      -       -      +
     34C  ASP*     3.0     8.5    +      -       -      +
     36C  PHE*     1.3    76.6    -      -       -      +
     38C  ASP*     1.3    65.2    +      -       -      +
     40C  GLY*     3.2     3.5    +      -       -      -
     41C  LEU*     2.9    36.7    +      -       +      +
     71C  GLY*     3.7    31.0    -      -       -      -
     72C  THR*     3.6    26.5    -      -       -      +
     73C  VAL*     4.1     6.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 38 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34C  ASP*     2.6    34.9    +      -       -      +
     35C  GLU*     3.7     8.9    -      -       -      +
     37C  VAL*     1.3    73.0    -      -       -      +
     39C  ARG*     1.3    52.5    +      -       -      +
     41C  LEU*     3.1    15.6    +      -       -      +
     42C  ASP*     2.8    47.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 39 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9C  ALA      4.6     3.8    +      -       -      -
     10C  GLY*     4.2    23.2    -      -       -      -
     11C  THR*     4.6     9.7    +      -       -      +
     35C  GLU*     2.9    21.0    +      -       -      +
     36C  PHE*     3.3    16.1    +      -       -      +
     38C  ASP*     1.3    76.9    -      -       -      +
     40C  GLY*     1.3    57.3    +      -       -      +
     42C  ASP*     3.2    11.4    +      -       +      +
     43C  PHE*     2.8    32.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 40 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9C  ALA*     3.5    13.8    +      -       -      -
     14C  SER*     3.3    22.5    -      -       -      -
     29C  LEU*     4.8     2.2    -      -       -      -
     36C  PHE      3.0    11.7    +      -       -      -
     37C  VAL      3.7     2.9    -      -       -      -
     39C  ARG*     1.3    76.7    -      -       -      +
     41C  LEU*     1.3    52.3    +      -       -      +
     43C  PHE*     3.3     6.1    +      -       -      +
     44C  ILE*     2.7    42.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 41 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29C  LEU*     4.2    11.0    -      -       +      -
     37C  VAL*     2.9    35.7    +      -       +      +
     38C  ASP*     3.5    17.9    -      -       -      +
     40C  GLY*     1.3    74.9    -      -       -      +
     42C  ASP*     1.3    66.4    +      -       -      +
     44C  ILE*     3.1    11.2    +      -       +      +
     45C  ASN*     2.9    24.9    +      -       -      +
     66C  LEU*     5.1     7.2    -      -       +      +
     69C  ILE*     4.0    33.2    -      -       +      +
     71C  GLY*     4.7    11.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 42 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38C  ASP*     2.8    30.2    +      -       -      +
     39C  ARG*     3.3    13.1    -      -       +      +
     41C  LEU*     1.3    71.7    -      -       -      +
     43C  PHE*     1.3    63.7    +      -       -      +
     45C  ASN*     3.1     9.3    +      -       -      +
     46C  LYS*     3.1    41.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 43 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10C  GLY      5.6     0.4    -      -       -      -
     11C  THR*     3.9    45.1    -      -       +      -
     14C  SER*     3.6    22.4    -      -       -      -
     15C  GLY*     4.4     8.1    -      -       -      -
     18C  GLN*     5.7     0.2    -      -       -      -
     39C  ARG*     2.8    20.6    +      -       -      +
     40C  GLY*     3.6     5.4    -      -       -      +
     41C  LEU      3.2     0.2    -      -       -      -
     42C  ASP*     1.3    76.4    -      -       -      +
     44C  ILE*     1.3    56.7    +      -       +      +
     46C  LYS*     3.7    11.6    +      -       +      +
     47C  ASN*     2.6    60.4    +      -       -      -
    142C  PRO*     6.5     1.1    -      -       +      -
    144C  PRO*     6.4     0.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 44 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14C  SER*     3.3    37.5    -      -       -      +
     17C  ALA*     4.3    12.3    -      -       +      -
     18C  GLN*     3.4    26.2    -      -       +      +
     29C  LEU*     4.7     7.4    -      -       +      -
     40C  GLY      2.7    25.8    +      -       -      +
     41C  LEU*     3.1    11.0    +      -       +      +
     43C  PHE*     1.3    77.6    -      -       +      +
     45C  ASN*     1.3    64.5    +      -       -      +
     47C  ASN*     3.3     7.4    +      -       -      +
     48C  LEU*     3.1    27.2    +      -       +      +
     65C  ILE*     5.6     0.2    -      -       +      -
     66C  LEU*     4.3    17.0    -      -       +      -
     69C  ILE*     4.3    16.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 45 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41C  LEU      2.9    12.6    +      -       -      +
     42C  ASP*     3.1    13.4    +      -       -      +
     44C  ILE*     1.3    77.5    -      -       -      +
     46C  LYS*     1.3    51.4    +      -       +      +
     48C  LEU*     3.3     5.5    +      -       -      +
     49C  SER*     2.7    40.7    +      -       -      -
     62C  LYS*     2.6    32.0    +      -       -      +
     66C  LEU*     3.8    26.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 46 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42C  ASP*     3.2    30.7    -      -       -      +
     43C  PHE*     3.9     9.6    -      -       +      +
     45C  ASN*     1.3    74.7    -      -       +      +
     47C  ASN*     1.3    67.2    +      -       -      +
     49C  SER*     3.0    10.2    +      -       -      -
     50C  LYS*     2.9    39.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 47 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18C  GLN*     3.7    25.6    +      -       -      +
     43C  PHE*     2.6    60.7    +      -       -      +
     44C  ILE      3.3     0.6    +      -       -      +
     45C  ASN      3.3     0.2    -      -       -      -
     46C  LYS*     1.3    78.7    -      -       -      +
     48C  LEU*     1.3    62.2    +      -       -      +
     50C  LYS*     3.4    19.6    +      -       -      +
     51C  LEU*     3.3    25.9    +      -       +      +
    144C  PRO*     5.8     4.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 48 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18C  GLN*     3.6    27.6    -      -       +      +
     22C  ALA*     5.8     1.3    -      -       +      -
     44C  ILE*     3.1    23.5    +      -       +      +
     45C  ASN      3.6     3.6    -      -       -      +
     47C  ASN*     1.3    76.1    -      -       -      +
     49C  SER*     1.3    58.5    +      -       -      +
     51C  LEU*     2.8    36.9    +      -       +      +
     52C  VAL*     3.0    14.2    +      -       -      +
     57C  ILE*     4.1     6.2    -      -       +      +
     62C  LYS*     3.7    33.2    -      -       +      +
     65C  ILE*     3.7    41.7    -      -       +      -
     66C  LEU*     3.9    17.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 49 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45C  ASN*     2.7    26.2    +      -       -      -
     46C  LYS*     3.1    13.7    -      -       -      -
     48C  LEU*     1.3    74.9    -      -       -      +
     50C  LYS*     1.3    62.2    +      -       -      -
     52C  VAL*     3.2     5.9    +      -       -      +
     53C  LYS*     2.9    25.2    +      -       -      +
     62C  LYS*     3.7    21.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 50 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46C  LYS*     2.9    30.4    +      -       -      +
     47C  ASN*     3.4    22.3    +      -       -      +
     49C  SER*     1.3    75.0    -      -       -      +
     51C  LEU*     1.3    53.9    +      -       +      +
     53C  LYS*     3.1    13.2    +      -       +      +
     54C  LYS*     2.6    48.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 51 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18C  GLN*     4.4    10.3    -      -       -      +
     47C  ASN*     3.3    15.5    +      -       +      +
     48C  LEU*     2.8    33.4    +      -       +      +
     50C  LYS*     1.3    77.9    -      -       +      +
     52C  VAL*     1.3    56.2    +      -       -      +
     54C  LYS*     3.7     7.3    -      -       +      -
     55C  GLY      3.3     1.6    +      -       -      -
     56C  LYS*     2.6    56.1    +      -       +      +
     57C  ILE*     3.1    22.4    +      -       +      -
    145C  VAL*     6.5     0.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 52 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48C  LEU      3.0     9.4    +      -       -      +
     49C  SER*     3.6     9.0    -      -       -      +
     50C  LYS      3.1     0.2    -      -       -      -
     51C  LEU*     1.3    74.9    -      -       -      +
     53C  LYS*     1.3    61.0    +      -       -      +
     55C  GLY*     2.7    24.8    +      -       -      -
     57C  ILE*     3.3    34.4    -      -       +      +
     58C  GLU*     3.6     1.1    -      -       -      +
     59C  GLU*     3.4    47.3    -      -       +      +
     62C  LYS*     4.1     7.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 53 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49C  SER      2.9    17.0    +      -       -      +
     50C  LYS*     3.5    11.4    -      -       +      +
     52C  VAL*     1.3    79.1    -      -       -      +
     54C  LYS*     1.3    60.8    +      -       +      +
     55C  GLY*     3.2     4.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 54 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50C  LYS*     2.6    31.4    +      -       +      +
     51C  LEU*     4.0     9.4    -      -       +      +
     53C  LYS*     1.3    75.4    -      -       +      +
     55C  GLY*     1.3    61.5    +      -       -      +
     56C  LYS*     3.2    30.6    +      -       +      +
----------------------------------------------------------
 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