Contacts of the helix formed by residues 907 - 931 (chain A) in PDB entry 3NC0


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 GLU 907 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    860A  PHE*     6.2     2.0    -      -       +      -
    864A  LEU*     5.0    13.9    -      -       +      -
    903A  ASN      4.4     2.9    +      -       -      +
    904A  VAL*     3.7     4.3    +      -       -      +
    906A  GLN*     1.3    78.8    -      -       +      +
    908A  GLU*     1.3    77.5    +      -       -      +
    909A  ALA*     3.1    14.5    +      -       +      +
    910A  ALA*     3.7    22.4    -      -       +      +
    911A  ALA*     3.0    25.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 908 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    905A  ALA      5.6     0.9    -      -       -      -
    906A  GLN      3.0    10.6    +      -       -      +
    907A  GLU*     1.3    77.5    +      -       -      +
    909A  ALA*     1.3    65.2    +      -       -      +
    911A  ALA*     3.4    15.4    -      -       -      +
    912A  GLN*     3.8    17.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 909 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    907A  GLU*     3.2    15.3    +      -       +      +
    908A  GLU*     1.3    77.1    -      -       -      +
    910A  ALA*     1.3    60.2    +      -       +      +
    911A  ALA      2.8    10.4    +      -       -      -
    912A  GLN*     3.7     9.9    +      -       -      +
    913A  SER*     4.2     6.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 910 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    864A  LEU*     4.6    24.7    -      -       +      +
    904A  VAL*     4.3     4.6    -      -       -      +
    907A  GLU*     3.4    19.0    +      -       +      +
    909A  ALA*     1.3    77.0    -      -       +      +
    911A  ALA*     1.3    62.2    +      -       -      +
    913A  SER*     4.3    10.1    -      -       -      -
    914A  PHE*     3.9    14.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 911 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    904A  VAL*     3.5    25.1    -      -       +      +
    905A  ALA*     5.3     2.2    -      -       -      +
    907A  GLU      3.0    19.1    +      -       -      +
    908A  GLU*     3.4    11.9    -      -       -      +
    909A  ALA      2.8     4.0    +      -       -      -
    910A  ALA*     1.3    75.1    -      -       -      +
    912A  GLN*     1.3    74.6    +      -       -      +
    913A  SER      3.2     1.3    -      -       -      -
    914A  PHE*     2.8    22.2    +      -       -      +
    915A  TYR*     3.3    19.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 912 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    908A  GLU*     3.8    19.0    +      -       -      +
    909A  ALA      3.7     4.0    +      -       -      +
    911A  ALA*     1.3    79.1    -      -       -      +
    913A  SER*     1.3    64.7    +      -       -      +
    915A  TYR*     2.8    35.4    +      -       -      +
    916A  GLN*     2.9    15.3    +      -       -      +
    956A  GLY      4.8     3.2    +      -       -      -
    957A  LYS*     4.2     0.5    -      -       -      +
    958A  ILE*     3.6    47.3    +      -       +      +
    959A  SER*     3.9    17.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 913 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    909A  ALA      4.2     3.8    +      -       -      -
    910A  ALA*     4.3    16.2    -      -       -      -
    911A  ALA      3.2     0.4    -      -       -      -
    912A  GLN*     1.3    78.7    -      -       -      +
    914A  PHE*     1.3    63.8    +      -       -      +
    916A  GLN*     3.2     8.0    +      -       -      +
    917A  THR*     3.0    33.5    +      -       -      -
    918A  TYR*     5.9     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 914 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    871A  PHE*     3.7    23.8    -      +       -      -
    875A  LEU*     3.4    24.5    -      -       +      -
    897A  LEU*     5.6     0.2    -      -       +      -
    900A  LEU*     4.5    13.2    -      -       +      -
    901A  LEU*     3.9    20.6    -      -       +      -
    904A  VAL*     3.8    30.7    -      -       +      -
    910A  ALA      3.9     5.5    +      -       -      +
    911A  ALA      2.8    11.6    +      -       -      +
    913A  SER*     1.3    78.1    -      -       -      +
    915A  TYR*     1.3    68.4    +      +       -      +
    917A  THR      3.2     0.2    +      -       -      -
    918A  TYR*     2.7    54.1    +      +       +      +
    919A  PHE*     5.2     1.8    -      +       -      -
    922A  ILE*     3.4    33.7    -      -       +      -
    949A  MET*     6.2     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 915 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    901A  LEU*     5.1     8.5    +      -       +      -
    904A  VAL*     4.7     6.0    -      -       +      +
    905A  ALA*     4.5    18.5    +      -       -      +
    911A  ALA*     3.8    20.0    -      -       +      +
    912A  GLN*     2.8    36.6    +      -       -      +
    914A  PHE*     1.3    93.7    -      +       -      +
    916A  GLN*     1.3    63.5    +      -       -      +
    917A  THR      3.1     0.9    +      -       -      -
    919A  PHE*     3.0    47.1    +      +       +      +
    920A  CYS*     4.7     0.7    +      -       -      -
    952A  LEU*     3.5    34.2    -      -       +      +
    956A  GLY*     4.9     1.9    -      -       -      -
    957A  LYS*     4.0    42.8    +      -       +      -
    959A  SER*     6.4     0.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 916 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    912A  GLN      2.9     9.7    +      -       -      +
    913A  SER*     3.6    13.2    -      -       -      +
    915A  TYR*     1.3    78.2    -      -       -      +
    917A  THR*     1.3    61.2    +      -       -      +
    957A  LYS*     4.5     6.1    -      -       -      +
    959A  SER*     3.2    30.7    -      -       -      -
    960A  THR*     2.8    35.7    +      -       -      +
    961A  PRO*     4.0     5.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 917 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    872A  LYS*     6.2     0.7    -      -       -      +
    913A  SER*     3.0    21.6    +      -       -      -
    916A  GLN*     1.3    83.6    -      -       -      +
    918A  TYR*     1.3    96.8    +      -       +      +
    919A  PHE      3.8     0.2    -      -       -      -
    920A  CYS      5.7     0.2    -      -       -      -
    921A  ASP*     2.9    20.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 918 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    868A  PRO*     4.1     6.6    +      -       -      +
    871A  PHE*     3.7    28.0    -      +       -      -
    872A  LYS*     3.6    44.1    +      -       +      +
    875A  LEU*     3.8    17.0    -      -       +      -
    876A  ASP*     5.0     5.2    -      -       -      -
    914A  PHE*     2.7    41.2    +      +       +      +
    917A  THR*     1.3   102.6    -      -       +      +
    919A  PHE*     1.3    66.1    +      -       -      +
    920A  CYS      3.5     2.2    -      -       -      -
    921A  ASP*     3.1    12.4    +      -       +      +
    922A  ILE*     2.7    45.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 919 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    901A  LEU*     6.1     0.7    -      -       +      -
    914A  PHE*     3.6     5.4    +      +       -      -
    915A  TYR*     3.0    41.6    +      +       +      +
    917A  THR      3.8     0.2    -      -       -      -
    918A  TYR*     1.3    80.4    -      -       -      +
    920A  CYS*     1.3    66.2    +      -       -      +
    922A  ILE*     3.2     5.0    +      -       -      +
    923A  LEU*     2.9    27.6    +      -       +      +
    949A  MET*     3.3    47.0    -      -       +      +
    950A  PHE*     6.2     0.2    -      +       -      -
    952A  LEU*     4.8    13.9    -      -       +      -
    953A  VAL*     3.5    28.5    -      -       +      -
    957A  LYS*     3.8    28.7    -      -       +      +
    974A  ILE*     3.5    31.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 920 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    915A  TYR      4.7     0.6    +      -       -      -
    918A  TYR      3.5     0.2    -      -       -      -
    919A  PHE*     1.3    90.9    -      -       -      +
    921A  ASP*     1.3    61.0    +      -       -      +
    923A  LEU*     3.0     6.7    +      -       -      +
    924A  GLN      2.8    27.7    +      -       -      -
    957A  LYS*     4.8     5.4    -      -       -      -
    961A  PRO*     5.4     0.9    -      -       -      -
    973A  PHE*     3.9    29.6    -      -       -      -
    974A  ILE*     4.6     2.9    -      -       -      -
    977A  TYR*     3.4    41.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 921 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    917A  THR      2.9    23.5    -      -       -      +
    918A  TYR*     3.1    16.0    +      -       +      +
    920A  CYS*     1.3    79.7    -      -       -      +
    922A  ILE*     1.3    61.6    +      -       +      +
    924A  GLN*     3.6    11.9    +      -       -      +
    925A  HIS*     3.0    37.8    +      -       +      -
    977A  TYR*     4.9     1.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 922 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    875A  LEU*     4.0    10.8    -      -       +      -
    879A  ILE*     4.9    11.9    -      -       +      -
    882A  PHE*     5.9     0.2    -      -       +      -
    897A  LEU*     3.9    37.2    -      -       +      -
    901A  LEU*     4.6     4.0    -      -       +      -
    914A  PHE*     3.4    39.7    -      -       +      -
    918A  TYR*     2.7    32.2    +      -       +      +
    919A  PHE*     3.6     4.9    -      -       -      +
    921A  ASP*     1.3    70.5    -      -       +      +
    923A  LEU*     1.3    67.3    +      -       -      +
    925A  HIS*     3.2     8.5    +      -       -      +
    926A  ILE*     3.0    24.5    +      -       +      +
    949A  MET*     4.4    18.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 923 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    919A  PHE*     2.9    19.1    +      -       +      +
    920A  CYS*     3.3     9.4    -      -       -      +
    922A  ILE*     1.3    78.0    -      -       -      +
    924A  GLN*     1.3    62.2    +      -       -      +
    926A  ILE*     3.2     5.0    +      -       -      +
    927A  PHE*     3.2    38.5    +      -       +      -
    946A  LEU*     3.6    27.6    -      -       +      -
    949A  MET*     4.2    22.2    -      -       +      +
    950A  PHE*     4.2    11.9    -      -       +      -
    974A  ILE*     3.5    33.9    -      -       +      -
    977A  TYR*     4.5     7.0    -      -       +      -
    978A  VAL*     3.7    22.0    -      -       +      -
    981A  LEU*     5.1     0.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 924 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    920A  CYS      2.8    17.0    +      -       -      +
    921A  ASP*     3.8    13.0    +      -       -      +
    923A  LEU*     1.3    72.5    -      -       -      +
    925A  HIS*     1.3    68.2    +      -       +      +
    927A  PHE*     3.3     4.7    +      -       -      +
    928A  SER*     3.0    22.9    +      -       -      -
    977A  TYR*     3.1    19.3    +      -       -      +
    981A  LEU*     3.6    43.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with HIS 925 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    876A  ASP*     5.0     6.8    +      -       -      -
    879A  ILE*     3.4    46.8    -      -       +      +
    882A  PHE*     3.8    17.1    -      -       +      -
    883A  LYS*     3.7    22.5    +      -       -      -
    921A  ASP*     3.0    25.8    +      -       +      +
    922A  ILE      3.2     8.0    +      -       -      +
    924A  GLN*     1.3    83.4    -      -       +      +
    926A  ILE*     1.3    62.9    +      -       -      +
    928A  SER*     3.1    20.9    +      -       -      -
    929A  VAL*     3.4     5.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 926 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    882A  PHE*     3.6    27.6    -      -       +      -
    894A  LEU*     4.2    15.3    -      -       +      -
    897A  LEU*     3.9    20.0    -      -       +      -
    922A  ILE*     3.0    21.8    +      -       +      +
    923A  LEU*     3.2     6.9    +      -       -      +
    925A  HIS*     1.3    76.2    -      -       -      +
    927A  PHE*     1.3    62.4    +      -       -      +
    929A  VAL*     3.0     7.5    -      -       -      +
    930A  VAL*     3.0    36.7    +      -       +      +
    942A  HIS*     4.6    13.9    -      -       -      +
    945A  ILE*     4.7    11.4    -      -       +      -
    946A  LEU*     3.7    35.4    -      -       +      +
    949A  MET*     5.6     0.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 927 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    923A  LEU*     3.2    33.8    +      -       +      +
    924A  GLN*     3.7     9.4    -      -       -      +
    926A  ILE*     1.3    79.1    -      -       -      +
    928A  SER*     1.3    62.8    +      -       -      +
    930A  VAL*     4.1     9.6    -      -       +      -
    931A  THR*     3.0    34.3    +      -       +      +
    946A  LEU*     3.5    40.2    -      -       +      -
    950A  PHE*     3.9     8.7    -      +       -      -
    978A  VAL*     4.1    10.3    -      -       +      -
    981A  LEU*     4.9    10.3    -      -       +      -
    982A  LEU*     3.6    32.5    -      -       +      -
    997A  PHE*     3.8    26.9    -      +       -      -
   1001A  LEU*     3.8    18.8    -      -       +      -
   1015A  LEU*     5.5     0.9    -      -       +      -
   1018A  PHE*     6.0     0.2    -      +       -      -
----------------------------------------------------------
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Residues in contact with SER 928 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    883A  LYS*     4.3    18.8    +      -       -      +
    924A  GLN*     3.0    15.7    +      -       -      -
    925A  HIS*     3.1    20.6    -      -       -      -
    926A  ILE      3.1     0.2    -      -       -      -
    927A  PHE*     1.3    78.3    -      -       -      +
    929A  VAL*     1.3    58.0    +      -       -      +
    931A  THR*     3.6    11.8    +      -       -      -
    932A  ASP*     3.9    10.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 929 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    882A  PHE*     3.8    32.8    -      -       +      +
    883A  LYS*     3.9    24.0    -      -       +      -
    925A  HIS      3.9     5.8    -      -       -      +
    926A  ILE*     3.0    19.1    -      -       -      +
    928A  SER*     1.3    80.6    -      -       -      +
    930A  VAL*     1.3    66.0    +      -       -      +
    931A  THR      3.3     1.6    -      -       -      -
    932A  ASP*     3.3    24.1    +      -       -      +
    935A  HIS*     3.7    28.0    -      -       +      +
    942A  HIS*     3.5    28.1    +      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 930 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    926A  ILE*     3.0    38.5    +      -       +      +
    927A  PHE*     3.3    11.9    +      -       +      +
    929A  VAL*     1.3    79.0    -      -       -      +
    931A  THR*     1.3    61.5    +      -       +      +
    932A  ASP      3.2     8.3    +      -       -      +
    935A  HIS      5.8     0.2    -      -       -      -
    939A  LEU*     6.1     2.5    -      -       +      -
    942A  HIS*     4.1    28.0    -      -       +      -
    946A  LEU*     4.9     8.1    -      -       +      -
    997A  PHE*     6.1     0.7    -      -       +      -
   1015A  LEU*     4.0    31.2    -      -       +      +
   1018A  PHE*     6.3     1.1    -      -       +      -
   1019A  LEU*     3.0    33.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 931 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    927A  PHE*     3.0    20.9    +      -       +      +
    928A  SER*     3.6     9.7    +      -       -      -
    930A  VAL*     1.3    79.2    -      -       +      +
    932A  ASP*     1.3    58.8    +      -       -      +
    933A  THR*     3.9     4.2    +      -       -      +
    982A  LEU*     4.8     8.1    -      -       +      -
    986A  PHE*     3.7    37.7    -      -       +      -
   1018A  PHE*     4.3    22.7    -      -       +      -
   1019A  LEU*     3.7    11.0    -      -       +      -
   1022A  ILE*     3.6    17.5    -      -       +      +
----------------------------------------------------------
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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