Contacts of the helix formed by residues 251 - 279 (chain C) in PDB entry 1RFU


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with ASN 251 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217C  GLN*     3.5     4.8    +      -       -      +
    248C  HIS*     3.2    35.0    +      -       +      +
    249C  PRO      3.6     0.6    -      -       -      -
    250C  ASN*     1.3    80.1    +      -       -      +
    252C  LEU*     1.3    67.2    +      -       -      +
    253C  LYS*     2.9     9.0    -      -       -      +
    254C  VAL*     2.7    41.9    +      -       +      +
    255C  ALA*     2.8    10.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 252 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    182C  THR*     3.8    24.0    -      -       +      -
    184C  VAL*     4.5     5.2    -      -       +      -
    203C  GLY*     3.3    37.0    -      -       -      +
    204C  SER      3.5    18.6    -      -       -      +
    205C  GLN*     3.5    23.3    +      -       +      +
    217C  GLN*     3.1    16.9    -      -       +      +
    219C  ILE*     3.7     6.1    -      -       +      -
    241C  LEU*     5.4     0.9    -      -       +      -
    245C  THR*     5.0    11.4    -      -       +      -
    248C  HIS      4.5     0.6    +      -       -      -
    249C  PRO      5.5     0.2    -      -       -      -
    251C  ASN*     1.3    75.0    -      -       -      +
    253C  LYS*     1.3    57.7    +      -       -      +
    255C  ALA*     4.5     4.0    -      -       +      -
    256C  CYS*     2.8    59.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 253 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217C  GLN*     4.2     4.6    -      -       -      +
    219C  ILE*     3.6    22.6    -      -       +      +
    251C  ASN*     2.8     7.7    +      -       -      +
    252C  LEU*     1.3    79.2    -      -       -      +
    254C  VAL*     1.3    58.7    +      -       +      +
    256C  CYS*     3.5     1.9    -      -       -      +
    257C  GLU*     2.6    65.1    +      -       -      +
    308C  GLN*     3.1    21.3    -      -       -      +
    309C  ALA*     3.2    35.9    -      -       +      +
    311C  VAL*     3.9    23.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 254 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    248C  HIS*     3.6    26.7    -      -       +      +
    251C  ASN*     2.7    37.1    +      -       +      +
    253C  LYS*     1.3    82.4    -      -       +      +
    255C  ALA*     1.3    63.8    +      -       -      +
    257C  GLU*     2.8    24.4    +      -       +      +
    258C  LYS*     2.9    31.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 255 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    241C  LEU*     4.8     1.6    -      -       +      -
    244C  TRP*     3.7    16.3    -      -       +      +
    245C  THR*     3.7    44.9    -      -       +      +
    248C  HIS*     4.3     7.5    -      -       +      +
    251C  ASN      2.8    17.5    +      -       -      +
    252C  LEU*     4.0     4.0    -      -       -      +
    254C  VAL*     1.3    77.1    -      -       -      +
    256C  CYS*     1.3    61.2    +      -       -      +
    258C  LYS*     3.7     0.4    +      -       -      -
    259C  THR*     2.8    29.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 256 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    184C  VAL*     4.4    16.4    -      -       -      -
    203C  GLY*     5.1     0.4    -      -       -      -
    219C  ILE*     3.3    23.8    -      -       +      -
    221C  MET*     3.8    17.7    -      -       +      -
    237C  PHE*     5.8     3.4    -      -       +      -
    241C  LEU*     4.6     9.4    -      -       -      -
    252C  LEU*     2.8    46.5    +      -       -      +
    253C  LYS      3.5     2.7    -      -       -      +
    255C  ALA*     1.3    74.8    -      -       -      +
    257C  GLU*     1.3    63.6    +      -       -      +
    259C  THR*     3.7     4.4    -      -       -      -
    260C  VAL*     2.8    34.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 257 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221C  MET*     5.0     0.9    -      -       -      -
    253C  LYS*     2.6    56.2    +      -       -      +
    254C  VAL*     2.8    17.1    +      -       +      +
    256C  CYS*     1.3    71.7    -      -       -      +
    258C  LYS*     1.3    66.8    +      -       +      +
    260C  VAL      3.9     0.5    -      -       -      -
    261C  SER*     2.8    28.4    +      -       -      -
    305C  ILE*     4.4    16.2    -      -       +      +
    307C  VAL*     3.8    18.8    -      -       +      +
    308C  GLN*     3.0    13.7    +      -       -      -
    309C  ALA*     2.5    41.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 258 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    244C  TRP*     3.5    52.4    -      -       +      +
    247C  LYS*     4.2     8.3    -      -       -      +
    248C  HIS*     2.7    33.4    +      -       +      +
    254C  VAL*     2.9    33.1    +      -       +      +
    257C  GLU*     1.3    70.2    -      -       +      +
    259C  THR*     1.3    66.3    +      -       -      +
    261C  SER*     2.8    16.3    +      -       -      -
    262C  ALA*     2.8    12.1    +      -       -      +
    303C  PRO*     3.5    19.3    -      -       +      +
    305C  ILE*     5.1    17.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 259 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    237C  PHE*     3.2    53.4    -      -       +      +
    240C  MET*     4.1     9.6    -      -       +      +
    241C  LEU*     3.7    17.2    -      -       +      +
    244C  TRP*     3.2    20.5    -      -       -      +
    255C  ALA      2.8    21.8    +      -       -      -
    256C  CYS*     3.7     5.4    -      -       -      -
    258C  LYS*     1.3    79.0    -      -       -      +
    260C  VAL*     1.3    58.3    +      -       -      +
    262C  ALA*     2.9     6.8    +      -       -      +
    263C  MET*     2.8    25.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 260 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201C  ALA*     5.8     1.1    -      -       +      -
    221C  MET*     4.1    20.2    -      -       +      -
    223C  MET*     3.5    39.9    -      -       +      -
    237C  PHE*     3.9    20.6    -      -       +      -
    256C  CYS*     2.8    22.3    +      -       -      +
    259C  THR*     1.3    75.0    -      -       -      +
    261C  SER*     1.3    57.3    +      -       -      +
    263C  MET*     3.0    10.0    -      -       +      +
    264C  HIS*     2.8    26.7    +      -       +      +
    307C  VAL*     4.0    21.3    -      -       +      +
   2402C  ADP      3.9     5.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 261 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    257C  GLU      2.8    19.0    +      -       -      -
    258C  LYS*     2.8    11.3    +      -       -      -
    260C  VAL*     1.3    72.0    -      -       -      +
    262C  ALA*     1.3    68.5    +      -       -      +
    264C  HIS*     2.7    15.2    +      -       -      +
    265C  HIS*     3.0    18.1    +      -       -      -
    303C  PRO*     4.1     3.4    -      -       -      -
    304C  GLU      3.1    23.1    -      -       -      -
    305C  ILE*     3.2     9.7    -      -       -      +
    306C  VAL*     3.2    28.4    +      -       -      -
    307C  VAL*     3.9     7.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 262 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    240C  MET*     3.5    26.7    -      -       +      -
    244C  TRP*     5.6     0.2    -      -       -      +
    258C  LYS      2.8     7.6    +      -       -      +
    259C  THR*     3.2     9.6    -      -       -      +
    261C  SER*     1.3    73.9    -      -       -      +
    263C  MET*     1.3    65.1    +      -       -      +
    265C  HIS*     3.1     8.2    +      -       -      +
    266C  VAL*     2.8    28.8    +      -       -      +
    299C  ASP      4.2     8.5    -      -       -      +
    300C  ILE*     4.7     6.5    -      -       +      +
    303C  PRO*     3.5    24.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 263 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    233C  THR*     3.0    45.3    -      -       +      +
    236C  LEU*     3.4    24.5    -      -       +      -
    237C  PHE*     3.9    20.6    -      -       +      -
    240C  MET*     3.4    23.8    -      -       -      -
    259C  THR      2.8     8.4    +      -       -      +
    260C  VAL*     3.0    17.9    -      -       -      +
    262C  ALA*     1.3    77.3    -      -       -      +
    264C  HIS*     1.3    54.0    -      -       -      +
    266C  VAL*     3.6     4.0    -      -       +      +
    267C  LEU*     2.9    39.5    +      -       +      +
   2402C  ADP      3.5    36.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 264 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    224C  HIS*     4.7    27.8    -      -       +      +
    226C  VAL*     6.3     0.7    -      -       +      -
    260C  VAL      2.8    11.7    +      -       -      +
    261C  SER      2.7    15.0    +      -       -      +
    263C  MET*     1.3    71.2    -      -       -      +
    265C  HIS*     1.3    63.7    +      +       -      +
    267C  LEU*     3.6     6.1    -      -       +      +
    268C  GLN*     2.6    76.8    +      -       +      +
    306C  VAL*     3.5    30.6    -      -       +      +
    307C  VAL*     5.2     5.4    -      -       +      -
   2402C  ADP      6.2     0.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 265 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    261C  SER      3.0    13.5    +      -       -      -
    262C  ALA*     3.5     5.6    -      -       -      +
    264C  HIS*     1.3    87.1    -      +       -      +
    266C  VAL*     1.3    68.9    +      -       -      +
    268C  GLN*     2.9     7.0    +      -       +      +
    269C  ARG*     2.8    27.1    +      -       -      +
    299C  ASP*     3.5    36.2    -      -       +      +
    303C  PRO*     4.1     4.0    -      -       -      +
    304C  GLU*     3.1    47.2    +      -       +      +
    306C  VAL*     3.5    21.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 266 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    236C  LEU*     4.0    30.1    -      -       +      -
    240C  MET*     5.4     0.2    -      -       +      -
    262C  ALA*     2.8    23.3    +      -       +      +
    263C  MET*     3.6     4.9    -      -       +      +
    265C  HIS*     1.3    74.8    -      -       +      +
    267C  LEU*     1.3    69.0    +      -       +      +
    269C  ARG*     3.2     4.6    +      -       -      +
    270C  THR*     3.0    30.7    +      -       -      +
    291C  LEU*     4.5    18.2    -      -       +      -
    292C  ARG      4.9     3.1    -      -       -      +
    293C  MET*     5.6     2.0    -      -       -      +
    296C  SER*     3.5    35.7    +      -       -      +
    299C  ASP*     5.5     1.3    -      -       +      -
    300C  ILE*     4.3    15.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 267 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    226C  VAL*     4.6    11.0    -      -       +      -
    230C  PHE*     3.4    47.0    -      -       +      -
    233C  THR*     3.8    14.1    -      -       +      -
    263C  MET*     2.9    24.3    +      -       +      +
    264C  HIS*     3.6     5.2    -      -       -      +
    266C  VAL*     1.3    79.0    -      -       +      +
    268C  GLN*     1.3    66.4    +      -       +      +
    270C  THR*     3.0     5.0    +      -       -      -
    271C  ILE*     2.9    25.7    +      -       -      +
    291C  LEU*     4.1     7.4    -      -       +      -
   2402C  ADP      3.4    51.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 268 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    224C  HIS*     5.1     9.1    -      -       -      +
    226C  VAL*     4.0    18.8    -      -       -      +
    264C  HIS*     2.6    64.8    +      -       +      +
    265C  HIS*     2.9     6.7    +      -       -      +
    267C  LEU*     1.3    71.0    -      -       -      +
    269C  ARG*     1.3    63.5    +      -       -      +
    271C  ILE*     3.1    14.4    -      -       -      +
    272C  LYS*     3.1    24.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 269 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    265C  HIS      2.8     7.9    +      -       -      +
    266C  VAL*     3.3    13.5    -      -       -      +
    268C  GLN*     1.3    77.8    -      -       -      +
    270C  THR*     1.3    62.9    +      -       -      +
    272C  LYS*     3.5    11.9    -      -       -      +
    273C  CYS*     3.2    20.8    +      -       +      +
    292C  ARG*     4.1    15.5    -      -       +      +
    295C  GLN*     3.4    44.8    +      -       -      +
    296C  SER*     2.6    37.4    +      -       -      -
    299C  ASP*     2.5    32.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 270 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    230C  PHE*     3.9    14.4    -      -       +      -
    266C  VAL*     3.0    16.7    +      -       -      +
    267C  LEU*     3.0    12.0    +      -       -      -
    269C  ARG*     1.3    75.9    -      -       -      +
    271C  ILE*     1.3    55.7    +      -       -      +
    272C  LYS      3.0     0.5    +      -       -      -
    273C  CYS*     3.2     1.6    +      -       -      +
    274C  ALA*     2.7    35.9    +      -       +      +
    288C  GLN      4.9     0.6    -      -       -      +
    289C  LEU*     3.5    20.0    -      -       -      +
    290C  GLU      3.2    25.8    -      -       -      +
    291C  LEU*     3.6     5.6    -      -       -      +
    292C  ARG*     3.2    27.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 271 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    226C  VAL*     3.8    30.7    -      -       +      -
    227C  ASP      4.8     1.8    -      -       -      +
    228C  ALA*     4.1    16.8    -      -       +      -
    230C  PHE*     4.4     3.5    -      -       +      -
    267C  LEU      2.9    15.8    +      -       -      +
    268C  GLN*     3.1    26.5    -      -       -      +
    270C  THR*     1.3    73.6    -      -       -      +
    272C  LYS*     1.3    64.4    +      -       +      +
    274C  ALA*     3.7     4.7    -      -       +      -
    275C  LYS*     2.8    64.7    +      -       +      +
    284C  PRO*     4.5     5.2    -      -       +      -
    289C  LEU*     4.1    12.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 272 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    268C  GLN      3.1     9.1    +      -       -      +
    269C  ARG*     3.5    15.7    -      -       -      +
    270C  THR      3.0     0.8    +      -       -      -
    271C  ILE*     1.3    87.1    -      -       +      +
    273C  CYS*     1.3    65.3    +      -       -      +
    275C  LYS*     3.2     5.5    +      -       -      +
    276C  ALA*     3.1    17.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 273 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    269C  ARG      3.2     3.1    +      -       -      +
    270C  THR      3.2     2.3    +      -       -      +
    272C  LYS*     1.3    79.5    -      -       -      +
    274C  ALA*     1.3    64.8    +      -       -      +
    276C  ALA*     2.7    23.2    +      -       -      +
    277C  LYS*     2.9    43.0    +      -       -      +
    292C  ARG*     3.6    46.7    -      -       -      +
      4H  GLU*     5.2     1.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 274 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    270C  THR      2.7    21.9    +      -       -      +
    271C  ILE*     3.4     7.0    -      -       -      +
    273C  CYS*     1.3    75.0    -      -       -      +
    275C  LYS*     1.3    63.7    +      -       -      +
    276C  ALA      3.0     0.2    +      -       -      -
    277C  LYS*     3.0    13.2    +      -       -      +
    278C  SER*     3.1    12.6    +      -       -      -
    284C  PRO*     3.8     9.5    -      -       +      +
    288C  GLN*     3.2    30.1    +      -       -      +
    289C  LEU*     3.5    25.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 275 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227C  ASP*     4.2    20.8    +      -       -      +
    271C  ILE*     2.8    46.3    +      -       +      +
    272C  LYS*     3.7     4.9    -      -       -      +
    274C  ALA*     1.3    71.9    -      -       -      +
    276C  ALA*     1.3    56.4    +      -       -      +
    278C  SER*     3.2    10.4    +      -       -      +
    279C  GLY*     2.9    31.7    +      -       -      +
    282C  VAL      5.5     2.2    -      -       -      +
    283C  LYS*     4.5    16.8    -      -       -      +
    284C  PRO*     3.7    14.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 276 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    272C  LYS*     3.1    11.6    +      -       +      +
    273C  CYS*     2.7    23.9    +      -       -      +
    275C  LYS*     1.3    80.6    -      -       -      +
    277C  LYS*     1.3    59.5    +      -       +      +
    278C  SER      3.3     0.7    +      -       -      -
    279C  GLY*     3.6     6.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 277 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16C  ARG*     5.7     4.6    -      -       -      +
    273C  CYS*     2.9    41.6    +      -       -      +
    274C  ALA      3.0     4.7    +      -       -      +
    276C  ALA*     1.3    75.8    -      -       +      +
    278C  SER*     1.3    59.5    +      -       -      +
    287C  ALA      5.8     0.6    +      -       -      -
    288C  GLN*     3.0    46.1    +      -       +      +
    292C  ARG*     5.5     3.8    -      -       -      +
      4H  GLU*     5.0     9.0    +      -       -      -
      6H  ARG*     5.3     9.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 278 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    274C  ALA      3.1     3.1    +      -       -      -
    275C  LYS*     3.2    21.0    +      -       -      -
    277C  LYS*     1.3    80.5    -      -       -      +
    279C  GLY*     1.3    59.7    +      -       -      +
    282C  VAL*     3.2    44.0    +      -       -      +
    283C  LYS      4.0     3.1    -      -       -      -
    284C  PRO*     3.4    17.8    -      -       -      +
    288C  GLN*     3.5    20.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 279 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    275C  LYS*     2.9    19.0    +      -       -      +
    276C  ALA      3.6     5.5    +      -       -      -
    277C  LYS      3.6     1.6    -      -       -      -
    278C  SER*     1.3    84.5    +      -       -      +
    280C  GLU*     1.3    68.8    +      -       -      -
    281C  GLY      3.7     0.2    +      -       -      -
    282C  VAL*     3.3    18.2    +      -       -      +
----------------------------------------------------------
 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