Contacts of the helix formed by residues 278 - 299 (chain C) in PDB entry 6S6A


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 ASP 278 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    258C  LYS*     5.5     0.4    -      -       -      +
    276C  PRO      3.7     5.0    +      -       -      +
    277C  VAL*     1.3    73.9    -      -       -      +
    279C  MET*     1.3    67.5    +      -       -      +
    280C  GLN*     3.1    38.7    +      -       -      +
    281C  SER*     3.1    31.3    +      -       -      +
    282C  TYR      3.4     3.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 279 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227C  GLU*     3.1    38.0    -      -       -      +
    231C  LYS*     5.0    16.8    -      -       -      -
    269C  TYR*     4.4    12.8    -      -       +      +
    277C  VAL*     3.6    34.2    +      -       +      +
    278C  ASP*     1.3    74.4    +      -       -      +
    280C  GLN*     1.3    59.4    +      -       +      +
    282C  TYR*     3.3    17.2    +      -       -      +
    283C  GLU*     2.9    33.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 280 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    244A  LYS      4.3    12.0    -      -       -      +
    245A  LEU*     3.4    48.5    +      -       +      +
    278C  ASP*     3.1    24.8    +      -       -      +
    279C  MET*     1.3    79.3    -      -       +      +
    281C  SER*     1.3    56.7    +      -       -      +
    283C  GLU*     3.3     8.0    +      -       -      +
    284C  LEU*     2.9    29.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 281 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    245A  LEU      5.3     0.6    +      -       -      -
    258C  LYS*     5.4     2.7    -      -       -      -
    260C  PHE*     4.5     6.3    -      -       -      -
    278C  ASP*     3.1    23.2    +      -       -      +
    280C  GLN*     1.3    74.8    -      -       -      +
    282C  TYR*     1.3    65.4    +      -       -      -
    284C  LEU*     3.3     8.4    +      -       -      +
    285C  CYS*     3.0    30.1    +      -       -      -
    340C  ILE*     3.8    26.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 282 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    223C  HIS*     4.9     2.7    -      +       -      -
    226C  PHE*     3.5    18.2    +      -       +      +
    227C  GLU*     3.9    32.5    -      -       +      -
    230C  SER*     2.8    20.1    +      -       -      -
    260C  PHE*     4.0    22.5    -      +       +      -
    262C  PHE*     3.6    16.2    -      +       -      -
    267C  LYS      2.7    23.4    +      -       -      -
    269C  TYR*     3.3    27.4    -      +       +      -
    277C  VAL*     4.5     1.3    -      -       +      -
    278C  ASP      3.4     3.0    +      -       -      +
    279C  MET*     3.3    32.1    +      -       -      +
    281C  SER*     1.3    79.7    -      -       -      +
    283C  GLU*     1.3    66.1    +      -       +      +
    285C  CYS*     3.3     2.0    +      -       -      +
    286C  CYS*     3.0    43.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 283 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    245A  LEU*     3.3    32.1    -      -       +      +
    223C  HIS*     3.3    53.7    +      -       +      +
    227C  GLU*     5.0     4.6    -      -       -      +
    279C  MET*     2.9    20.5    +      -       -      +
    280C  GLN*     3.6     7.8    -      -       -      +
    282C  TYR*     1.3    76.3    -      -       +      +
    284C  LEU*     1.3    63.4    +      -       -      +
    286C  CYS*     3.1     2.4    +      -       -      +
    287C  ASP*     3.0    28.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 284 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238A  PHE*     4.0     8.2    -      -       +      -
    241A  SER*     4.0    14.1    -      -       -      +
    242A  CYS*     3.9    36.8    -      -       -      -
    245A  LEU*     3.5    10.7    -      -       +      +
    246A  ALA*     4.1    22.0    -      -       +      -
    280C  GLN      2.9    17.9    +      -       -      +
    281C  SER*     3.3    10.1    +      -       -      +
    283C  GLU*     1.3    76.6    -      -       -      +
    285C  CYS*     1.3    57.9    +      -       -      +
    287C  ASP*     3.1     7.3    +      -       -      +
    288C  MET*     2.9    25.9    +      -       -      +
    320C  LEU*     4.2     7.6    -      -       +      -
    324C  THR*     5.9     0.2    -      -       +      -
    326C  LEU*     3.5    30.5    -      -       +      -
    340C  ILE*     6.1     1.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 285 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    260C  PHE*     4.1    11.4    -      -       +      -
    262C  PHE*     3.8    22.7    -      -       +      -
    281C  SER      3.0    20.7    +      -       -      +
    282C  TYR      3.6     4.9    -      -       -      +
    284C  LEU*     1.3    74.1    -      -       -      +
    286C  CYS*     1.3    64.1    +      -       -      +
    288C  MET*     3.1    11.7    +      -       -      +
    289C  ILE*     3.1    25.5    +      -       -      +
    326C  LEU*     5.0     7.6    -      -       -      -
    338C  VAL*     3.6    23.5    -      -       +      +
    340C  ILE*     3.9    26.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 286 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    223C  HIS*     3.5    25.4    -      -       -      +
    226C  PHE*     5.1     1.8    -      -       +      -
    262C  PHE*     3.8     3.1    -      -       -      -
    267C  LYS*     3.5    29.0    -      -       +      +
    282C  TYR*     3.0    50.1    +      -       -      -
    283C  GLU      3.1     7.2    +      -       -      +
    285C  CYS*     1.3    75.9    -      -       -      +
    287C  ASP*     1.3    62.4    +      -       -      +
    289C  ILE*     3.2    12.3    +      -       -      +
    290C  ASP*     3.2    26.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 287 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238A  PHE*     3.7    20.4    -      -       +      +
    241A  SER*     2.8    35.7    +      -       -      +
    245A  LEU*     4.3     5.9    -      -       -      +
    223C  HIS*     3.3    23.7    +      -       -      -
    283C  GLU*     3.0    19.4    +      -       -      +
    284C  LEU      3.1     7.8    +      -       -      +
    286C  CYS*     1.3    75.3    -      -       -      +
    288C  MET*     1.3    63.1    +      -       -      +
    290C  ASP*     3.7    14.9    -      -       -      +
    291C  VAL*     3.2    17.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 288 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238A  PHE*     3.6    12.3    -      -       +      -
    284C  LEU      2.9    11.2    +      -       -      +
    285C  CYS*     3.3    10.3    -      -       -      +
    287C  ASP*     1.3    76.0    -      -       -      +
    289C  ILE*     1.3    56.9    +      -       +      +
    291C  VAL*     3.1     4.9    +      -       -      +
    292C  VAL*     2.8    38.8    +      -       +      +
    316C  ALA*     3.8    24.9    -      -       +      -
    318C  ILE*     3.5    32.1    -      -       +      -
    326C  LEU*     3.8    40.6    -      -       +      +
    328C  LEU*     3.8    20.9    -      -       +      +
    338C  VAL*     4.2    18.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 289 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    262C  PHE*     3.4    55.0    -      -       +      -
    263C  ASP      5.2     1.1    -      -       -      +
    264C  VAL*     3.7    31.9    -      -       +      +
    267C  LYS*     4.0    12.3    -      -       +      -
    285C  CYS      3.1    11.6    +      -       -      +
    286C  CYS*     3.2     8.0    +      -       -      +
    288C  MET*     1.3    73.4    -      -       +      +
    290C  ASP*     1.3    65.8    +      -       -      +
    292C  VAL*     3.1     7.4    +      -       -      +
    293C  ILE*     2.8    38.2    +      -       +      +
    328C  LEU*     4.1    20.4    -      -       +      -
    336C  ALA*     5.7     0.9    -      -       +      -
    338C  VAL*     4.4     4.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 290 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    223C  HIS*     5.9     0.5    +      -       -      -
    267C  LYS*     2.9    37.8    +      -       -      +
    286C  CYS*     3.2    17.3    +      -       -      +
    287C  ASP*     3.7    18.7    -      -       -      +
    289C  ILE*     1.3    74.6    -      -       -      +
    291C  VAL*     1.3    57.5    +      -       +      +
    293C  ILE*     3.3     2.6    +      -       -      -
    294C  ASP*     2.8    46.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 291 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    234A  ILE*     3.8    29.6    -      -       +      +
    235A  ILE*     4.8     1.8    -      -       +      -
    238A  PHE*     3.5    33.7    -      -       +      -
    252A  MET*     3.3    43.1    -      -       +      -
    287C  ASP      3.2     9.0    +      -       -      +
    288C  MET*     3.1    10.7    +      -       -      +
    290C  ASP*     1.3    78.2    -      -       +      +
    292C  VAL*     1.3    64.7    +      -       +      +
    294C  ASP      4.0     0.3    -      -       -      -
    295C  VAL*     3.1    31.0    +      -       +      +
    318C  ILE*     5.1     2.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 292 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    252A  MET*     5.3     1.6    -      -       -      -
    254A  VAL*     3.8    22.7    -      -       +      +
    255A  ARG      5.4     2.0    -      -       -      +
    288C  MET*     2.8    30.8    +      -       +      +
    289C  ILE*     3.7     7.6    -      -       -      +
    291C  VAL*     1.3    76.7    -      -       +      +
    293C  ILE*     1.3    66.7    +      -       +      +
    295C  VAL*     3.9     0.5    -      -       -      -
    296C  SER*     2.8    41.4    +      -       -      +
    310C  TYR*     5.9     0.9    -      -       +      -
    314C  SER*     5.6     7.6    -      -       -      +
    315C  MET      4.9     2.2    -      -       -      +
    316C  ALA*     3.3    32.1    -      -       +      -
    328C  LEU*     4.3    21.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 293 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    264C  VAL*     3.8    26.9    -      -       +      +
    289C  ILE*     2.8    38.5    +      -       +      +
    290C  ASP*     4.0     3.6    -      -       -      +
    292C  VAL*     1.3    80.5    -      -       +      +
    294C  ASP*     1.3    63.2    +      -       -      +
    296C  SER*     3.4     3.7    +      -       -      -
    297C  CYS*     2.8    41.7    +      -       -      -
    309C  ALA*     4.7     6.1    -      -       +      +
    310C  TYR*     4.1    26.9    -      -       +      +
    314C  SER*     5.9     0.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 294 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    234A  ILE*     3.2    35.7    -      -       +      +
    290C  ASP*     2.8    30.5    +      -       -      +
    291C  VAL      4.4     1.6    -      -       -      +
    293C  ILE*     1.3    82.8    -      -       -      +
    295C  VAL*     1.3    60.4    +      -       -      +
    297C  CYS*     3.8     8.1    +      -       -      +
    298C  ILE*     3.2    29.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 295 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    231A  ILE*     4.2    15.5    -      -       +      -
    234A  ILE*     4.2    17.5    -      -       +      -
    235A  ILE*     5.3     5.8    -      -       +      -
    252A  MET*     5.6     0.2    -      -       -      -
    254A  VAL*     4.3    16.8    -      -       +      -
    259A  PHE*     4.0    22.0    -      -       +      -
    263A  ILE*     5.4     2.5    -      -       +      -
    273A  MET*     4.0    25.6    -      -       +      -
    291C  VAL*     3.1    24.7    +      -       +      +
    292C  VAL      4.1     2.0    -      -       -      +
    294C  ASP*     1.3    76.1    -      -       -      +
    296C  SER*     1.3    60.0    +      -       -      +
    298C  ILE*     3.2     5.4    +      -       -      +
    299C  TYR*     3.0    32.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 296 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    254A  VAL*     3.9     6.9    -      -       -      +
    255A  ARG      4.7     3.6    +      -       -      -
    256A  ASN*     4.6     0.7    +      -       -      +
    259A  PHE*     3.7    21.4    -      -       -      -
    292C  VAL*     2.8    28.6    +      -       -      +
    293C  ILE*     3.6     6.3    -      -       -      -
    295C  VAL*     1.3    73.8    -      -       -      +
    297C  CYS*     1.3    60.6    +      -       -      -
    299C  TYR      2.5    22.5    -      -       -      +
    300C  GLY      3.5     9.2    -      -       -      +
    301C  LEU*     3.8     5.0    -      -       -      +
    309C  ALA*     3.5    28.2    +      -       -      +
    314C  SER*     5.3     0.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 297 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    223A  ARG*     4.1     4.0    +      -       -      -
    293C  ILE*     2.8    34.7    +      -       -      +
    294C  ASP*     4.0     9.9    -      -       -      +
    295C  VAL      3.3     0.6    -      -       -      -
    296C  SER*     1.3    72.4    -      -       -      +
    298C  ILE*     1.3    63.2    +      -       +      +
    301C  LEU*     3.3    29.4    -      -       +      +
    309C  ALA*     3.6    18.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 298 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    222A  GLN*     5.2     2.1    -      -       -      +
    223A  ARG*     4.6     9.1    +      -       -      +
    224A  ASP*     4.2    23.6    -      -       +      +
    227A  ARG*     4.0    20.5    -      -       +      -
    230A  LYS*     4.1    25.6    -      -       +      -
    231A  ILE*     3.6    22.0    -      -       +      -
    234A  ILE*     4.5     4.5    -      -       +      -
    294C  ASP*     3.2    18.3    +      -       +      +
    295C  VAL      3.2     6.5    +      -       -      +
    296C  SER      3.2     0.4    -      -       -      -
    297C  CYS*     1.3    82.2    -      -       +      +
    299C  TYR*     1.3    96.1    +      -       +      +
    301C  LEU*     5.5     1.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 299 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202A  GLU*     2.8    31.2    +      -       -      -
    204A  LEU*     3.6    19.9    -      -       -      +
    222A  GLN*     3.9    20.2    -      -       -      -
    227A  ARG*     3.8    13.6    +      -       -      +
    231A  ILE*     4.1    15.3    -      -       +      +
    259A  PHE*     3.6    24.9    -      +       +      -
    273A  MET*     4.3     8.7    -      -       +      -
    275A  VAL*     4.0    39.3    -      -       +      -
    295C  VAL*     3.0    20.6    +      -       +      -
    296C  SER*     2.5    34.5    -      -       -      +
    298C  ILE*     1.3   100.5    -      -       +      +
    300C  GLY*     1.3    60.4    +      -       -      +
    301C  LEU      3.5     1.1    +      -       -      -
----------------------------------------------------------
 Back to top of page


A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il