Contacts of the helix formed by residues 284 - 315 (chain C) in PDB entry 5J0Z


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 GLN 284 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    279C  LEU*     3.2    22.8    +      -       +      +
    282C  GLU*     3.3    32.1    -      -       -      +
    283C  SER*     1.3    78.9    -      -       -      +
    285C  PRO*     1.4    52.6    -      -       -      +
    286C  ALA*     2.6    20.5    +      -       +      -
    287C  ARG*     2.6    49.4    +      -       +      +
    288C  ALA*     3.1     8.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with PRO 285 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    279C  LEU      4.6     2.7    -      -       -      +
    280C  LYS*     3.8    33.6    +      -       +      +
    283C  SER*     3.3    14.6    -      -       -      -
    284C  GLN*     1.4    86.5    -      -       -      +
    286C  ALA*     1.3    60.6    +      -       -      +
    288C  ALA*     3.9     6.2    -      -       +      +
    289C  ALA*     3.1    27.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 286 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    284C  GLN*     2.6     6.4    +      -       +      +
    285C  PRO*     1.3    76.3    -      -       -      +
    287C  ARG*     1.3    50.1    +      -       -      +
    289C  ALA*     3.5     1.6    -      -       -      +
    290C  SER*     2.8    40.5    +      -       -      +
    293C  ARG*     4.8     4.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 287 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    279C  LEU*     3.9    15.7    -      -       +      +
    284C  GLN*     2.6    41.4    +      -       +      +
    286C  ALA*     1.3    71.6    -      -       -      +
    288C  ALA*     1.3    66.2    +      -       -      +
    290C  SER*     3.3    16.5    +      -       -      -
    291C  ILE*     3.3    24.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 288 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    276C  GLN*     3.7    25.8    -      -       +      +
    279C  LEU*     3.5    32.7    -      -       +      +
    280C  LYS*     4.2     9.0    -      -       +      +
    284C  GLN      3.1     7.4    +      -       -      +
    285C  PRO*     3.9    14.4    -      -       +      +
    287C  ARG*     1.3    80.4    -      -       -      +
    289C  ALA*     1.3    58.2    +      -       -      +
    290C  SER      3.2     0.2    +      -       -      -
    291C  ILE*     3.2     7.1    +      -       -      +
    292C  THR*     3.1    23.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 289 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    219C  THR*     5.3     5.6    -      -       +      -
    276C  GLN*     5.4     1.1    -      -       +      +
    280C  LYS*     4.4    13.2    -      -       -      +
    285C  PRO      3.1    16.3    +      -       -      +
    286C  ALA      3.5     2.9    -      -       -      -
    288C  ALA*     1.3    75.8    -      -       +      +
    290C  SER*     1.3    60.3    +      -       -      +
    292C  THR*     3.7    22.2    -      -       +      -
    293C  ARG*     3.0    38.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 290 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    286C  ALA*     2.8    24.8    +      -       -      +
    287C  ARG*     3.4    12.6    -      -       -      -
    288C  ALA      3.1     0.6    -      -       -      -
    289C  ALA*     1.3    75.6    -      -       -      +
    291C  ILE*     1.3    57.1    +      -       -      +
    293C  ARG*     3.1    19.6    +      -       -      +
    294C  ALA*     2.8    35.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 291 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    272C  GLU*     4.0    25.1    -      -       +      +
    275C  VAL*     3.8    30.5    -      -       +      -
    276C  GLN*     5.7     0.9    -      -       +      +
    279C  LEU*     3.9    13.7    -      -       +      -
    287C  ARG*     3.4    27.6    -      -       +      +
    288C  ALA      3.3     6.7    -      -       -      +
    290C  SER*     1.3    78.5    -      -       -      +
    292C  THR*     1.3    56.3    +      -       -      +
    294C  ALA*     2.8    28.6    +      -       -      +
    295C  SER*     2.8    18.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 292 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216C  PHE*     3.5    27.3    +      -       -      +
    218C  SER      5.1     0.4    -      -       -      +
    219C  THR*     5.1     3.4    -      -       +      -
    272C  GLU*     2.6    27.0    +      -       -      -
    276C  GLN*     2.7    29.7    +      -       -      +
    288C  ALA      3.1     9.7    +      -       -      -
    289C  ALA*     3.7    22.4    -      -       +      +
    291C  ILE*     1.3    78.4    -      -       -      +
    293C  ARG*     1.3    65.0    +      -       +      +
    295C  SER*     3.5     5.3    -      -       -      -
    296C  ARG*     3.4    33.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 293 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    286C  ALA*     4.8     4.6    +      -       -      +
    289C  ALA*     3.0    33.7    +      -       +      +
    290C  SER*     3.1    14.9    +      -       -      +
    292C  THR*     1.3    78.6    -      -       +      +
    294C  ALA*     1.3    66.3    +      -       -      +
    296C  ARG*     3.2    53.9    -      -       -      +
    297C  ILE*     4.1     6.8    +      -       -      +
    278D  TYR*     5.8     1.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 294 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    290C  SER      2.8    15.8    +      -       -      +
    291C  ILE*     2.8    14.5    +      -       -      +
    293C  ARG*     1.3    69.8    -      -       -      +
    295C  SER*     1.3    54.9    +      -       -      +
    297C  ILE*     2.7    31.4    +      -       -      +
    298C  ALA*     3.0    14.0    +      -       +      -
----------------------------------------------------------
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Residues in contact with SER 295 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216C  PHE*     3.7    28.4    -      -       -      -
    272C  GLU*     3.5    18.4    -      -       -      +
    291C  ILE*     2.8    18.8    +      -       -      +
    292C  THR      3.5     9.4    -      -       -      -
    294C  ALA*     1.3    70.4    -      -       -      +
    296C  ARG*     1.3    54.4    +      -       -      +
    297C  ILE      2.6    13.0    +      -       -      -
    298C  ALA*     3.0    21.6    +      -       -      +
    299C  PHE*     3.1    27.4    +      -       -      +
    300C  PRO*     3.8     0.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 296 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216C  PHE*     3.1    32.1    +      -       +      -
    217C  TRP*     3.4    73.6    -      -       +      +
    219C  THR*     6.0     2.2    -      -       -      +
    292C  THR*     3.4    20.7    +      -       -      +
    293C  ARG*     3.2    46.6    -      -       -      +
    295C  SER*     1.3    75.0    -      -       -      +
    297C  ILE*     1.3    68.0    +      -       +      +
    300C  PRO*     3.5    17.1    -      -       -      +
    278D  TYR*     3.9    26.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 297 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217C  TRP*     6.4     0.2    -      -       +      -
    293C  ARG      4.4     5.8    -      -       -      +
    294C  ALA*     2.7    10.5    +      -       -      +
    295C  SER      2.6     2.4    +      -       -      -
    296C  ARG*     1.3    88.0    -      -       +      +
    298C  ALA*     1.3    65.8    +      -       -      +
    299C  PHE      3.1     2.5    +      -       -      -
    300C  PRO*     3.3     4.8    -      -       -      +
    301C  VAL*     3.0    40.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 298 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    294C  ALA*     3.0    10.8    +      -       +      +
    295C  SER*     3.0    18.8    +      -       -      +
    297C  ILE*     1.3    76.7    -      -       -      +
    299C  PHE*     1.3    61.1    +      -       +      +
    301C  VAL*     3.7     4.0    -      -       -      +
    302C  VAL*     2.8    47.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 299 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    213C  TRP*     3.5    28.0    -      +       +      -
    216C  PHE*     3.4    37.2    -      +       +      -
    265C  PHE*     4.0    17.4    -      +       -      -
    268C  VAL*     3.4    30.1    -      -       +      -
    269C  ALA*     3.7    27.1    -      -       +      -
    272C  GLU*     4.5     5.8    -      -       +      -
    295C  SER*     3.1    31.0    +      -       -      +
    298C  ALA*     1.3    82.9    -      -       +      +
    300C  PRO*     1.3    74.4    -      -       +      +
    301C  VAL      3.1     0.3    +      -       -      -
    302C  VAL*     3.8     2.6    -      -       -      -
    303C  PHE*     2.9    25.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 300 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    213C  TRP*     4.0    32.3    -      -       +      -
    216C  PHE*     5.6     1.3    -      -       +      -
    295C  SER      3.8     1.1    -      -       -      +
    296C  ARG      3.5    23.1    -      -       -      +
    297C  ILE*     3.3     8.5    -      -       -      +
    299C  PHE*     1.3    93.9    -      -       +      +
    301C  VAL*     1.3    57.8    +      -       +      +
    303C  PHE*     3.7     1.1    -      -       +      +
    304C  LEU*     3.1    36.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 301 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    297C  ILE*     3.0    39.3    +      -       +      +
    298C  ALA*     3.7     5.4    -      -       -      +
    300C  PRO*     1.3    72.6    -      -       +      +
    302C  VAL*     1.3    75.6    -      -       +      +
    303C  PHE      3.0     1.1    -      -       -      -
    304C  LEU*     2.8    17.7    +      -       -      +
    305C  LEU*     2.9    32.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 302 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    265C  PHE*     3.9    18.8    -      -       +      -
    298C  ALA*     2.8    32.7    +      -       +      +
    299C  PHE*     4.0     2.0    -      -       -      +
    301C  VAL*     1.3    80.0    -      -       +      +
    303C  PHE*     1.3    56.0    +      -       -      +
    305C  LEU*     3.7    11.9    -      -       +      +
    306C  ALA*     2.9    32.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 303 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206C  LEU*     3.6    28.5    -      -       +      -
    209C  LEU*     3.6    23.6    -      -       +      -
    210C  PHE*     4.9     4.9    -      +       -      -
    213C  TRP*     4.0    17.7    -      +       +      -
    258C  ILE*     5.8     1.3    -      -       +      -
    261C  MET*     3.3    28.5    -      -       +      -
    262C  ILE*     4.2    15.3    -      -       +      -
    265C  PHE*     3.3    28.1    -      +       +      -
    299C  PHE      2.9    16.2    +      -       -      +
    300C  PRO      3.7     4.5    -      -       -      +
    301C  VAL      2.9     0.4    +      -       -      -
    302C  VAL*     1.3    74.5    -      -       -      +
    304C  LEU*     1.3    69.6    +      -       +      +
    306C  ALA*     3.2     0.8    +      -       -      -
    307C  ASN*     2.8    52.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 304 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    300C  PRO*     3.1    20.5    +      -       +      +
    301C  VAL*     2.8    10.0    +      -       -      +
    303C  PHE*     1.3    81.7    -      -       +      +
    305C  LEU*     1.3    67.2    +      -       +      +
    307C  ASN*     4.9     3.1    -      -       +      -
    308C  ILE*     3.3    30.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 305 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    301C  VAL*     2.9    33.8    +      -       +      +
    302C  VAL*     3.7    14.6    -      -       +      +
    304C  LEU*     1.3    77.4    -      -       +      +
    306C  ALA*     1.3    52.9    +      -       -      +
    308C  ILE*     2.8    13.5    +      -       -      +
    309C  ILE*     2.7    45.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 306 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    261C  MET*     4.0    20.5    -      -       -      +
    265C  PHE*     5.0     2.2    -      -       +      -
    302C  VAL*     2.9    25.6    +      -       +      +
    303C  PHE*     4.1     2.0    -      -       -      +
    305C  LEU*     1.3    76.2    -      -       +      +
    307C  ASN*     1.3    58.0    +      -       -      +
    309C  ILE*     3.6    20.9    -      -       +      +
    310C  LEU*     3.1    31.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 307 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206C  LEU*     6.1     0.8    -      -       -      +
    254C  TYR*     5.1     4.9    +      -       -      -
    258C  ILE*     4.0    31.0    -      -       -      +
    261C  MET*     3.2    28.2    -      -       -      +
    303C  PHE*     2.8    42.1    +      -       +      +
    304C  LEU*     4.6     2.9    -      -       +      +
    306C  ALA*     1.3    71.6    -      -       -      +
    308C  ILE*     1.3    64.3    +      -       +      +
    310C  LEU*     3.7     4.7    -      -       -      +
    311C  ALA*     2.7    34.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 308 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    304C  LEU*     3.3    20.2    +      -       +      +
    305C  LEU*     2.8    12.6    +      -       -      +
    307C  ASN*     1.3    85.5    -      -       +      +
    309C  ILE*     1.3    64.8    +      -       +      +
    311C  ALA*     3.8    10.2    -      -       +      +
    312C  PHE*     3.2    24.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 309 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    305C  LEU*     2.7    24.9    +      -       +      +
    306C  ALA*     3.6    30.7    -      -       +      +
    308C  ILE*     1.3    74.5    -      -       +      +
    310C  LEU*     1.3    60.2    +      -       +      +
    312C  PHE*     3.6     8.8    +      -       +      +
    313C  LEU*     3.0    45.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 310 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    254C  TYR*     4.6     6.3    -      -       +      +
    257C  ALA*     3.8    26.7    -      -       +      -
    258C  ILE*     4.0    24.0    -      -       +      +
    261C  MET*     4.4    15.0    -      -       +      -
    306C  ALA      3.1    17.5    +      -       -      +
    307C  ASN*     3.7     5.2    -      -       -      +
    309C  ILE*     1.3    77.8    -      -       +      +
    311C  ALA*     1.3    69.8    +      -       -      +
    313C  LEU*     2.9    33.5    +      -       +      +
    314C  PHE*     2.9    37.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 311 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    254C  TYR*     4.3    21.1    -      -       -      +
    307C  ASN      2.7    22.6    +      -       -      +
    308C  ILE*     3.8    16.2    -      -       +      +
    310C  LEU*     1.3    72.0    -      -       -      +
    312C  PHE*     1.3    64.0    +      -       -      +
    314C  PHE      3.2     0.7    +      -       -      -
    315C  PHE*     3.2    30.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 312 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    308C  ILE*     3.2    14.8    +      -       +      +
    309C  ILE*     3.7     8.1    -      -       +      +
    310C  LEU      3.1     0.8    -      -       -      -
    311C  ALA*     1.3    76.0    -      -       -      +
    313C  LEU*     1.3    64.4    -      -       +      +
    314C  PHE      2.8    11.4    +      -       -      -
    315C  PHE*     2.9    27.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 313 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    309C  ILE*     3.0    36.1    +      -       +      +
    310C  LEU*     2.9    32.1    +      -       +      +
    312C  PHE*     1.3    80.4    -      -       +      +
    314C  PHE*     1.3    62.6    +      -       +      +
    315C  PHE      3.7     0.2    -      -       -      -
    402C  HXA      5.4     7.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 314 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117C  ARG*     3.6    33.7    -      -       +      -
    118C  ARG*     3.4    25.1    +      -       +      +
    252C  MET*     3.4    34.1    -      -       +      -
    253C  THR      3.7    12.1    -      -       -      -
    254C  TYR*     3.6    23.8    -      +       +      -
    257C  ALA*     4.1    16.4    -      -       +      -
    310C  LEU*     2.9    28.4    +      -       +      +
    312C  PHE      2.8     1.8    +      -       -      -
    313C  LEU*     1.3    78.9    -      -       +      +
    315C  PHE*     1.3    83.4    +      -       +      +
    402C  HXA      4.6     9.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 315 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118C  ARG*     3.9    47.8    -      -       +      +
    121C  PHE*     4.2    36.8    -      +       +      -
    254C  TYR*     4.1    24.9    -      +       -      -
    311C  ALA*     3.2    20.4    +      -       +      +
    312C  PHE*     2.9    24.0    +      -       -      +
    313C  LEU      3.7     0.4    -      -       -      -
    314C  PHE*     1.3   109.0    -      -       +      +
----------------------------------------------------------
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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