Contacts of the helix formed by residues 282 - 303 (chain B) in PDB entry 3LRB


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 ALA 282 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25B  GLY      5.3     1.4    -      -       -      +
     29B  PHE*     4.4    17.3    -      -       +      -
    111B  TYR*     3.2    35.3    -      -       +      -
    278B  VAL*     3.2    16.2    +      -       +      +
    279B  SER*     4.3     3.1    -      -       -      +
    280B  PHE      2.5     6.0    +      -       -      +
    281B  CYS*     1.3    73.2    -      -       -      +
    283B  ALA*     1.3    61.8    +      -       -      +
    284B  ALA      2.8     4.9    +      -       -      -
    285B  GLY*     3.0    14.6    +      -       -      -
    286B  CYS*     3.7     9.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 283 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108B  GLY      3.1    27.8    -      -       -      +
    111B  TYR*     3.7    14.6    -      -       +      +
    112B  LEU*     4.1    21.1    -      -       +      -
    280B  PHE*     2.9     8.0    +      -       +      +
    282B  ALA*     1.3    79.0    -      -       -      +
    284B  ALA*     1.3    57.2    +      -       -      +
    286B  CYS*     3.3    10.7    +      -       -      +
    287B  LEU*     3.0    25.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 284 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    154B  ALA*     3.0    41.5    -      -       +      +
    157B  LEU*     4.2    14.4    -      -       +      -
    280B  PHE*     2.9    21.1    +      -       +      +
    281B  CYS*     3.5    26.0    -      -       -      +
    282B  ALA      2.8     0.6    -      -       -      -
    283B  ALA*     1.3    80.1    -      -       -      +
    285B  GLY*     1.3    60.2    +      -       -      +
    287B  LEU*     3.3    12.9    +      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 285 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21B  GLY      4.4     2.8    -      -       -      +
     25B  GLY*     4.7    12.8    -      -       -      +
    154B  ALA      4.8     1.3    -      -       -      -
    155B  THR*     4.3    11.7    -      -       -      +
    158B  ALA*     4.0    15.5    -      -       -      +
    281B  CYS      3.8     3.0    +      -       -      -
    282B  ALA      3.0    11.2    +      -       -      -
    284B  ALA*     1.3    78.4    -      -       -      +
    286B  CYS*     1.3    60.8    +      -       -      +
    288B  GLY*     3.8     0.9    +      -       -      -
    289B  SER*     3.0    26.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with CYS 286 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25B  GLY      4.6     1.8    -      -       -      -
     26B  SER*     4.3    15.9    -      -       -      -
    104B  MET*     3.0    39.0    -      -       +      -
    105B  VAL*     6.0     1.1    -      -       +      +
    107B  ILE*     5.0     3.8    -      -       -      -
    108B  GLY*     4.3    17.7    -      -       -      -
    111B  TYR*     5.3     3.6    -      -       -      -
    136B  PHE*     4.4     2.9    -      -       -      -
    282B  ALA      3.9    12.8    -      -       -      -
    283B  ALA*     3.3     7.1    +      -       -      +
    284B  ALA      3.2     0.4    -      -       -      -
    285B  GLY*     1.3    78.7    -      -       -      +
    287B  LEU*     1.3    61.9    +      -       -      +
    288B  GLY      3.4     0.4    -      -       -      -
    289B  SER*     3.7     8.3    -      -       -      -
    290B  LEU*     3.6    22.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 287 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136B  PHE*     2.6    48.3    -      -       +      -
    139B  LEU*     6.0     0.2    -      -       +      -
    150B  VAL*     3.5    27.6    -      -       +      +
    154B  ALA*     3.8    12.3    -      -       +      -
    157B  LEU*     6.1     4.0    -      -       +      -
    280B  PHE*     6.1     4.9    -      -       +      -
    283B  ALA      3.0    12.3    +      -       -      +
    284B  ALA*     3.3    16.1    +      -       +      +
    286B  CYS*     1.3    78.7    -      -       -      +
    288B  GLY*     1.3    60.5    +      -       -      +
    291B  GLY      4.4     0.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 288 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    147B  ILE*     5.1     0.2    -      -       -      +
    150B  VAL*     4.8     0.9    -      -       -      -
    151B  GLN*     2.4    58.0    -      -       -      +
    154B  ALA*     3.4    14.6    -      -       -      +
    155B  THR*     4.4     1.1    -      -       -      -
    284B  ALA      3.6     1.8    +      -       -      -
    285B  GLY      4.2     0.7    -      -       -      -
    287B  LEU*     1.3    79.5    -      -       -      +
    289B  SER*     1.3    63.2    +      -       -      +
    291B  GLY*     3.2     4.9    +      -       -      -
    292B  GLY      3.2     5.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 289 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21B  GLY      4.1    12.3    -      -       -      -
     22B  ASN*     4.4     7.1    +      -       -      +
     26B  SER*     5.2     6.2    +      -       -      -
    104B  MET*     3.4    19.8    -      -       -      +
    151B  GLN*     3.3     8.3    -      -       -      +
    285B  GLY      3.0    21.3    +      -       -      -
    286B  CYS*     3.7    10.5    -      -       -      -
    287B  LEU      3.5     0.2    -      -       -      -
    288B  GLY*     1.3    72.7    -      -       -      +
    290B  LEU*     1.3    56.9    +      -       -      +
    291B  GLY      2.6     1.6    +      -       -      -
    292B  GLY*     2.5    30.3    +      -       -      -
    293B  TRP*     3.0    22.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 290 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101B  ASN*     3.1    42.5    +      -       +      +
    104B  MET*     3.8    22.7    -      -       +      -
    105B  VAL*     3.3    36.1    -      -       +      -
    133B  LEU*     3.6    19.1    -      -       +      -
    136B  PHE*     4.1    22.2    -      -       +      -
    286B  CYS*     3.6    16.5    +      -       +      +
    288B  GLY      3.5     0.8    -      -       -      -
    289B  SER*     1.3    80.1    +      -       -      +
    291B  GLY*     1.3    51.8    +      -       -      +
    293B  TRP*     3.8     3.6    -      -       +      +
    294B  THR*     2.8    40.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 291 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136B  PHE*     4.1    13.9    -      -       -      -
    140B  ASN*     3.3    10.3    +      -       -      -
    147B  ILE*     3.5    32.3    -      -       -      -
    287B  LEU      4.4     0.2    +      -       -      -
    288B  GLY      3.2     4.3    +      -       -      -
    289B  SER      2.6     5.5    +      -       -      -
    290B  LEU*     1.3    75.2    -      -       -      +
    292B  GLY*     1.3    65.4    +      -       -      -
    293B  TRP      3.2     0.2    +      -       -      -
    294B  THR*     3.2     3.1    +      -       -      -
    295B  LEU*     2.9    19.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 292 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18B  MET*     3.7    24.0    -      -       -      -
     22B  ASN*     4.1     8.5    -      -       -      -
    147B  ILE*     4.3     1.2    -      -       -      +
    151B  GLN*     3.0    24.1    +      -       -      -
    289B  SER      2.5    11.0    +      -       -      -
    291B  GLY*     1.3    69.9    -      -       -      -
    293B  TRP*     1.3    56.1    +      -       -      -
    295B  LEU*     2.9    24.2    +      -       -      +
    296B  LEU*     3.1    12.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 293 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22B  ASN*     2.9    44.7    +      -       +      +
     93B  TYR*     4.3     7.2    -      +       -      -
     96B  ALA      4.1     7.2    -      -       -      -
     97B  CYS*     3.3    57.8    -      -       +      +
    100B  GLY*     6.4     0.2    -      -       -      -
    101B  ASN*     3.8    18.4    -      -       -      +
    104B  MET*     6.3     1.3    -      -       +      -
    205B  ILE*     4.5    15.9    -      -       +      -
    206B  GLY*     4.4    16.4    -      -       -      -
    208B  GLU*     3.5    24.2    -      -       -      -
    289B  SER*     3.0    22.7    +      -       -      +
    290B  LEU*     4.0     6.7    -      -       +      +
    292B  GLY*     1.3    74.3    -      -       -      +
    294B  THR*     1.3    65.1    +      -       -      +
    296B  LEU*     3.2    16.4    +      -       +      +
    297B  ALA      3.2    14.9    +      -       -      -
    361B  THR*     5.0     4.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 294 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97B  CYS      6.0     0.7    -      -       -      -
     98B  TRP*     6.4     0.9    -      -       -      +
    101B  ASN*     3.0    22.9    -      -       -      +
    133B  LEU      5.8     0.7    -      -       -      +
    136B  PHE*     4.5    10.9    +      -       +      -
    137B  VAL*     4.9     7.2    +      -       -      +
    140B  ASN*     3.2    23.1    +      -       -      +
    290B  LEU*     2.8    26.0    +      -       +      +
    291B  GLY*     3.2     2.0    +      -       -      -
    293B  TRP*     1.3    72.4    -      -       -      +
    295B  LEU*     1.3    68.8    +      -       -      +
    297B  ALA*     2.9    18.9    +      -       -      +
    298B  GLY*     3.0    10.9    +      -       -      -
    327B  LEU*     4.6    10.7    -      -       -      +
    330B  VAL*     5.1    12.0    -      -       +      +
    334B  MET*     4.6    14.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 295 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18B  MET*     3.5    33.2    -      -       +      -
    140B  ASN*     3.5    22.9    -      -       -      +
    144B  PRO*     4.4    20.4    -      -       +      -
    147B  ILE*     4.0     9.0    -      -       +      -
    148B  THR*     5.0     3.8    -      -       +      -
    213B  ALA*     5.6     6.1    -      -       +      -
    216B  VAL*     5.1     7.4    -      -       +      -
    291B  GLY      2.9    12.6    +      -       -      +
    292B  GLY*     3.0    13.9    -      -       -      +
    294B  THR*     1.3    78.8    +      -       -      +
    296B  LEU*     1.3    59.0    +      -       +      +
    298B  GLY*     3.2     3.2    +      -       -      -
    299B  GLN*     3.1    41.8    +      -       +      +
    327B  LEU*     5.3     3.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 296 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18B  MET*     4.0    18.2    -      -       -      -
     22B  ASN*     4.0     8.1    -      -       -      +
     93B  TYR*     4.1    16.2    -      -       +      +
     97B  CYS*     4.7     7.2    -      -       -      -
    208B  GLU*     5.2     1.1    -      -       +      -
    209B  SER*     3.1    42.8    -      -       -      +
    212B  VAL*     3.7    20.9    -      -       +      -
    213B  ALA*     5.0     5.8    -      -       +      +
    292B  GLY      3.3    17.3    -      -       -      +
    293B  TRP*     3.7    17.9    -      -       +      +
    294B  THR      3.1     0.4    -      -       -      -
    295B  LEU*     1.3    82.6    -      -       +      +
    297B  ALA*     1.3    54.9    +      -       -      +
    298B  GLY      3.0     5.4    -      -       -      -
    299B  GLN*     4.3     2.9    -      -       +      +
    300B  THR*     2.8    34.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 297 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94B  TRP*     2.9    31.8    -      -       +      +
     97B  CYS*     3.7    27.3    -      -       +      +
     98B  TRP*     4.2    10.8    -      -       +      +
    293B  TRP      3.2     6.8    +      -       -      +
    294B  THR*     2.9    12.7    +      -       -      +
    296B  LEU*     1.3    73.7    -      -       -      +
    298B  GLY*     1.3    61.5    +      -       -      +
    300B  THR      4.4     1.6    -      -       -      +
    301B  ALA*     3.7     1.2    -      -       -      +
    302B  LYS*     2.8    21.5    +      -       -      -
    330B  VAL*     4.7    11.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 298 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    294B  THR      3.0    11.1    +      -       -      -
    295B  LEU      3.2     4.5    +      -       -      -
    296B  LEU      3.0     0.2    -      -       -      -
    297B  ALA*     1.3    79.7    -      -       -      +
    299B  GLN*     1.3    59.7    +      -       -      +
    302B  LYS*     2.9    50.2    +      -       -      +
    323B  PRO*     4.6    11.4    -      -       -      -
    327B  LEU*     4.7     9.9    -      -       -      -
    330B  VAL*     5.6     0.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 299 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70B  PRO*     6.2     0.2    -      -       -      +
     71B  GLY*     4.6     2.7    -      -       -      +
    144B  PRO*     5.3     0.8    -      -       -      +
    212B  VAL      3.7    20.4    -      -       -      +
    213B  ALA*     4.2    14.3    +      -       -      +
    215B  GLY*     5.1     1.6    -      -       -      -
    216B  VAL*     2.8    39.2    -      -       -      +
    295B  LEU*     3.1    27.5    +      -       +      +
    296B  LEU*     3.9     5.6    -      -       +      +
    298B  GLY*     1.3    73.6    -      -       -      +
    300B  THR*     1.3    53.2    +      -       -      +
    301B  ALA      2.5    20.0    +      -       -      -
    302B  LYS*     5.4     2.4    -      -       -      +
    303B  ALA*     2.9    31.2    +      -       -      +
    323B  PRO*     5.8     4.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 300 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71B  GLY*     2.7    25.6    +      -       -      -
     72B  GLY      4.3    13.0    -      -       -      +
     73B  SER*     5.7     0.9    -      -       -      -
     74B  TYR*     4.5    11.4    -      -       +      -
     90B  ASN*     2.1    36.6    -      -       -      +
     93B  TYR*     3.1    37.1    -      -       +      -
     94B  TRP*     3.9     7.6    -      -       -      +
    212B  VAL*     3.0    16.1    -      -       -      +
    296B  LEU      2.8    17.4    +      -       -      -
    297B  ALA*     5.4     0.7    -      -       -      -
    299B  GLN*     1.3    66.9    -      -       -      +
    301B  ALA*     1.3    54.2    +      -       -      +
    303B  ALA*     4.6     5.2    -      -       -      -
    304B  ALA*     5.2     1.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 301 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90B  ASN*     3.5     6.7    -      -       -      -
     94B  TRP*     3.5    24.5    -      -       +      -
    297B  ALA      3.7     1.1    -      -       -      +
    299B  GLN      2.5     8.1    +      -       -      -
    300B  THR*     1.3    77.5    -      -       -      +
    302B  LYS*     1.3    66.9    +      -       +      +
    303B  ALA*     2.7     5.2    +      -       -      +
    304B  ALA      3.1     3.2    +      -       -      +
    305B  ALA*     2.7    35.7    +      -       -      +
    310B  PHE*     3.2    29.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 302 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94B  TRP*     3.1    18.4    -      -       -      +
    297B  ALA      2.8    22.2    +      -       -      -
    298B  GLY*     2.9    27.2    +      -       -      +
    299B  GLN*     4.4     4.5    -      -       -      +
    301B  ALA*     1.3    77.9    -      -       -      +
    303B  ALA*     1.3    61.0    +      -       -      +
    305B  ALA*     3.5     7.8    -      -       -      +
    306B  ASP*     3.3    14.6    +      -       -      +
    314B  PHE*     3.0    62.6    -      -       +      +
    315B  ALA*     4.1     4.6    +      -       -      +
    317B  VAL*     6.1     1.1    -      -       +      -
    323B  PRO*     3.5    24.0    -      -       +      -
    326B  GLY*     3.4    15.9    -      -       -      -
    330B  VAL*     4.2     7.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 303 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70B  PRO*     3.5    32.8    -      -       +      +
     71B  GLY*     4.6     3.1    -      -       -      -
     74B  TYR*     5.0     2.9    -      -       +      -
    299B  GLN*     2.9    24.2    +      -       -      +
    300B  THR*     4.6     1.3    -      -       -      -
    301B  ALA      2.7     1.8    -      -       -      +
    302B  LYS*     1.3    74.4    -      -       -      +
    304B  ALA*     1.3    53.3    +      -       -      +
    305B  ALA      2.5     2.9    +      -       -      -
    306B  ASP*     2.3    45.4    +      -       -      +
    307B  ASP*     3.5     6.6    +      -       -      +
----------------------------------------------------------
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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