Contacts of the helix formed by residues 723 - 746 (chain B) in PDB entry 1WZ2


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 LYS 723 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    721B  GLU      3.7     2.6    +      -       -      -
    722B  LEU*     1.3    79.5    -      -       -      +
    724B  ASP*     1.3    82.4    -      -       -      +
    725B  ILE      3.5     0.4    -      -       -      +
    726B  ASP*     3.2    14.0    +      -       -      +
    727B  ARG*     3.2    12.5    -      -       -      +
    774B  ARG*     3.8    23.9    -      -       -      +
    928B  ARG*     3.9    23.0    -      -       -      +
    929B  GLU*     2.9    49.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 724 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    723B  LYS*     1.3    82.8    -      -       -      +
    725B  ILE*     1.3    51.3    +      -       -      -
    726B  ASP      2.6     6.5    +      -       -      -
    727B  ARG*     2.6    47.6    +      -       -      +
    728B  TRP*     3.0    10.4    +      -       -      +
    832B  ILE*     3.5    13.7    -      -       +      +
    925B  LYS*     3.6    16.6    -      -       -      +
    928B  ARG*     2.6    43.3    +      -       -      -
    929B  GLU*     3.0    13.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 725 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    724B  ASP*     1.3    70.1    -      -       -      +
    726B  ASP*     1.3    80.6    +      -       -      +
    728B  TRP*     3.5    13.8    -      -       +      +
    729B  MET      3.5     9.2    +      -       -      -
    766B  TRP*     4.7     2.7    -      -       +      -
    767B  TYR*     3.0    22.4    -      -       +      -
    770B  ARG*     2.8    55.9    -      -       +      +
    771B  THR*     3.2    24.9    -      -       +      -
    774B  ARG*     4.1     2.9    -      -       -      +
    836B  GLU*     3.1    20.9    -      -       +      +
    925B  LYS*     4.3     2.9    -      -       -      +
    929B  GLU*     2.9    32.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 726 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    722B  LEU*     3.7    12.5    -      -       +      +
    723B  LYS      3.2    12.2    +      -       -      +
    724B  ASP      2.6     1.2    +      -       -      -
    725B  ILE*     1.3    96.7    -      -       -      +
    727B  ARG*     1.3    61.2    +      -       -      +
    728B  TRP      3.0     4.5    -      -       -      -
    729B  MET*     3.3     3.5    +      -       -      +
    730B  LEU*     3.0    27.8    +      -       -      +
    767B  TYR*     2.7    30.0    +      -       -      -
    774B  ARG*     3.3    27.9    +      -       -      -
    778B  ALA*     3.7     3.8    -      -       -      +
    779B  LYS*     3.5     9.2    +      -       -      -
    782B  VAL*     3.0    20.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 727 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    722B  LEU*     3.1    45.1    +      -       +      +
    723B  LYS      3.2    13.9    -      -       -      +
    724B  ASP*     2.6    36.4    +      -       -      +
    726B  ASP*     1.3    72.2    -      -       -      +
    728B  TRP*     1.3    54.8    +      -       -      +
    730B  LEU*     3.4    11.3    -      -       -      +
    731B  HIS*     2.8    26.5    +      -       -      +
    827B  TRP      4.1     4.9    -      -       -      +
    829B  ASN*     4.6    13.3    -      -       -      +
    832B  ILE*     3.6    20.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with TRP 728 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    724B  ASP      3.0     8.6    +      -       -      +
    725B  ILE*     3.5    19.1    -      -       +      +
    727B  ARG*     1.3    74.3    -      -       -      +
    729B  MET*     1.3   106.0    +      -       +      +
    730B  LEU      2.5     5.3    +      -       -      -
    731B  HIS*     2.4    31.1    +      -       +      +
    732B  ARG*     3.0    37.9    +      -       +      +
    763B  ASP*     3.3    22.9    -      -       -      -
    766B  TRP*     3.6    31.6    -      +       +      -
    767B  TYR*     4.5     4.9    -      +       +      -
    832B  ILE*     3.9    21.0    -      -       +      +
    833B  GLU*     4.0    16.7    +      -       +      +
    836B  GLU*     3.1    38.9    -      -       +      +
    840B  ARG*     5.6     4.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with MET 729 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    725B  ILE      3.5     1.2    +      -       -      -
    726B  ASP      3.3     6.7    +      -       -      +
    728B  TRP*     1.3    94.1    -      -       +      +
    730B  LEU*     1.3    59.1    +      -       +      +
    732B  ARG*     4.2     3.6    -      -       +      -
    733B  LEU*     3.5    19.2    +      -       -      +
    760B  ILE*     5.1     0.4    -      -       -      +
    763B  ASP*     2.9    41.3    -      -       +      +
    764B  LEU*     3.4    18.6    -      -       -      +
    767B  TYR*     3.5    29.4    -      -       +      -
    782B  VAL*     3.7    22.4    -      -       +      -
    786B  LEU*     3.3    30.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 730 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    722B  LEU*     4.0    18.8    -      -       +      -
    726B  ASP      3.0    16.7    +      -       -      +
    727B  ARG*     3.4     9.0    -      -       -      +
    728B  TRP      2.5     5.1    +      -       -      -
    729B  MET*     1.3    79.5    -      -       +      +
    731B  HIS*     1.3    61.9    +      -       -      +
    733B  LEU*     3.6     8.7    +      -       +      +
    734B  ASN      3.3    12.0    +      -       -      -
    781B  TYR*     4.0    22.0    -      -       +      +
    782B  VAL*     4.3    17.3    -      -       +      +
    785B  THR*     4.1    13.5    -      -       -      +
    786B  LEU*     5.5     3.4    -      -       +      +
    827B  TRP*     2.5    66.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with HIS 731 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    727B  ARG      2.8    13.0    +      -       -      +
    728B  TRP*     2.4    29.5    +      -       -      +
    730B  LEU*     1.3    66.1    -      -       -      +
    732B  ARG*     1.3    64.3    +      -       -      +
    734B  ASN*     2.9     8.2    +      -       -      +
    735B  LYS*     2.8    36.5    +      -       +      +
    827B  TRP      3.6     8.5    -      -       -      +
    828B  TRP*     3.6    19.4    +      +       +      -
    829B  ASN*     2.8    40.9    +      -       +      +
    830B  GLU*     3.8     4.4    +      -       -      -
    833B  GLU*     2.9    55.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 732 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    728B  TRP*     3.0    46.0    +      -       +      +
    729B  MET*     4.4     4.9    -      -       +      +
    731B  HIS*     1.3    78.5    -      -       -      +
    733B  LEU*     1.3    61.4    +      -       -      +
    735B  LYS*     3.1    34.6    -      -       -      +
    736B  ALA*     2.7    32.6    +      -       -      +
    755B  TRP*     4.3     6.7    -      -       -      -
    759B  SER*     4.2     5.7    +      -       -      -
    760B  ILE*     5.3     0.8    -      -       -      +
    763B  ASP*     2.7    47.8    +      -       +      +
    833B  GLU*     3.5    21.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 733 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    729B  MET      3.5    18.2    +      -       -      +
    730B  LEU*     3.7    13.9    -      -       +      +
    731B  HIS      3.1     0.6    -      -       -      -
    732B  ARG*     1.3    79.0    -      -       -      +
    734B  ASN*     1.3    54.4    +      -       -      +
    736B  ALA*     3.1     4.0    +      -       -      +
    737B  ILE*     2.6    66.7    +      -       +      +
    760B  ILE*     3.6    31.4    -      -       +      -
    786B  LEU*     4.2    27.6    -      -       +      -
    789B  VAL*     3.2    30.5    -      -       +      -
    790B  TRP      4.6     1.1    -      -       -      +
    827B  TRP*     4.9     9.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 734 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    730B  LEU      3.3     7.4    +      -       -      +
    731B  HIS*     2.9    13.6    +      -       -      +
    733B  LEU*     1.3    80.2    -      -       -      +
    735B  LYS*     1.3    60.6    +      -       -      +
    737B  ILE*     3.2    10.6    +      -       -      +
    738B  LYS*     3.0    17.3    +      -       -      +
    823B  PRO*     2.9    22.7    -      -       -      +
    824B  VAL*     2.7    36.6    -      -       -      +
    826B  GLU      2.7    28.8    -      -       -      +
    827B  TRP*     3.7    11.6    -      -       +      +
    828B  TRP*     3.1    23.9    +      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 735 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    731B  HIS*     2.8    20.7    +      -       +      +
    732B  ARG*     3.1    40.8    -      -       -      +
    734B  ASN*     1.3    74.7    -      -       -      +
    736B  ALA*     1.3    66.3    +      -       -      +
    738B  LYS*     2.9    26.6    +      -       -      +
    739B  GLU*     3.0    19.8    +      -       +      +
    755B  TRP*     3.8    27.6    -      -       +      -
    828B  TRP*     5.1     3.5    -      -       -      +
    833B  GLU*     2.8    36.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 736 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    732B  ARG      2.7    19.6    +      -       -      +
    733B  LEU      3.5     3.1    -      -       -      +
    735B  LYS*     1.3    73.5    -      -       -      +
    737B  ILE*     1.3    62.6    +      -       -      +
    740B  THR*     3.1    28.9    +      -       -      -
    755B  TRP*     3.9    21.5    -      -       +      +
    756B  ALA      4.9     0.2    -      -       -      +
    759B  SER*     4.2    13.0    -      -       -      +
    760B  ILE*     3.7    31.2    -      -       +      -
    793B  LEU*     4.2     2.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 737 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    733B  LEU*     2.6    53.6    +      -       +      +
    734B  ASN*     3.2    20.6    -      -       -      +
    735B  LYS      2.9     0.4    +      -       -      -
    736B  ALA*     1.3    74.7    -      -       -      +
    738B  LYS*     1.3    54.5    +      -       -      +
    740B  THR*     3.6     2.3    -      -       -      -
    741B  THR*     2.7    31.4    +      -       -      +
    789B  VAL*     3.8    21.8    -      -       +      -
    793B  LEU*     4.2    10.1    -      -       +      -
    820B  TRP*     3.8     2.3    -      -       +      -
    821B  PRO*     2.9    35.2    -      -       +      +
    822B  GLU      4.4     6.5    -      -       -      +
    823B  PRO*     3.4    21.8    -      -       +      -
    824B  VAL*     5.3     4.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 738 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    734B  ASN      3.0     3.5    +      -       -      +
    735B  LYS*     2.9    18.9    +      -       -      +
    737B  ILE*     1.3    76.5    -      -       -      +
    739B  GLU*     1.3    96.6    +      -       -      +
    740B  THR      3.0     1.3    -      -       -      -
    741B  THR*     2.9    18.6    +      -       -      -
    742B  ASN*     3.0    28.0    +      -       -      +
    823B  PRO*     3.6    22.4    -      -       +      -
    828B  TRP*     4.3    28.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 739 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    735B  LYS*     3.0    21.7    +      -       +      +
    738B  LYS*     1.3   100.6    +      -       -      +
    740B  THR*     1.3    61.7    +      -       -      +
    742B  ASN*     3.2    19.4    -      -       -      +
    743B  ALA*     3.1    22.5    +      -       -      +
    751B  THR*     4.9     1.4    -      -       -      +
    755B  TRP*     3.4    57.4    +      -       +      -
----------------------------------------------------------
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Residues in contact with THR 740 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    736B  ALA      3.1    17.3    +      -       -      -
    737B  ILE      3.6     2.7    -      -       -      -
    738B  LYS      3.0     0.6    -      -       -      -
    739B  GLU*     1.3    74.8    -      -       -      +
    741B  THR*     1.3    68.3    +      -       -      +
    742B  ASN      2.9     2.9    +      -       -      -
    743B  ALA*     3.3     1.7    +      -       -      +
    744B  LEU*     3.1    31.6    +      -       +      +
    752B  ALA*     3.9    11.2    +      -       +      +
    755B  TRP*     3.3     5.1    -      -       -      +
    756B  ALA*     3.0    44.9    +      -       +      +
    793B  LEU*     4.6     5.2    -      -       +      +
    797B  PHE*     5.3     4.0    -      -       +      -
    820B  TRP*     3.3    24.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 741 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66B  PHE*     3.6     5.8    -      -       +      -
     70B  GLN*     4.4    10.3    -      -       -      +
    737B  ILE      2.7    17.5    +      -       -      -
    738B  LYS*     2.9    11.6    +      -       -      -
    740B  THR*     1.3    76.3    -      -       -      +
    742B  ASN*     1.3    63.3    +      -       -      +
    744B  LEU*     4.3     0.2    -      -       -      -
    745B  GLU*     3.0    38.3    +      -       +      +
    820B  TRP*     2.6    32.7    -      -       +      -
    822B  GLU*     2.8    32.6    +      -       -      +
    823B  PRO*     4.7     0.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 742 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    738B  LYS*     3.0    28.3    +      -       -      +
    739B  GLU*     3.2    25.0    -      -       -      +
    740B  THR      2.9     1.2    +      -       -      -
    741B  THR*     1.3    80.4    -      -       -      +
    743B  ALA*     1.3    71.4    +      -       -      +
    744B  LEU      2.8     1.1    -      -       -      -
    745B  GLU*     2.5    24.9    +      -       -      +
    746B  GLU*     3.0    14.9    +      -       +      +
    748B  ARG*     5.1     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 743 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    739B  GLU      3.1     5.5    +      -       -      +
    740B  THR      3.9     2.9    -      -       -      +
    742B  ASN*     1.3    77.7    -      -       -      +
    744B  LEU*     1.3    57.8    +      -       -      +
    746B  GLU      3.2     1.4    -      -       -      -
    747B  PHE      3.2     2.3    +      -       -      -
    748B  ARG*     2.5    51.7    +      -       -      +
    751B  THR*     3.2    35.4    -      -       +      +
    752B  ALA*     3.2    22.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 744 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62B  VAL*     4.2    20.6    -      -       +      +
     63B  ILE*     3.5    18.4    -      -       +      +
     66B  PHE*     3.3    56.7    -      -       +      -
    740B  THR*     3.1    21.1    +      -       +      +
    742B  ASN      2.5     4.8    +      -       -      -
    743B  ALA*     1.3    70.3    -      -       -      +
    745B  GLU*     1.3    64.1    +      -       -      +
    746B  GLU      2.7     6.3    +      -       -      -
    747B  PHE*     2.7    13.6    +      -       -      +
    748B  ARG      4.6     0.4    -      -       -      +
    749B  THR*     5.0     7.6    -      -       +      +
    752B  ALA*     3.1    35.7    -      -       +      -
    796B  PRO*     4.9     2.2    -      -       +      -
    797B  PHE*     4.0    15.7    -      -       +      -
    820B  TRP*     5.2     1.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 745 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66B  PHE*     3.6     8.0    -      -       -      -
     67B  LYS*     3.0    27.6    +      -       -      +
     70B  GLN*     3.1    22.4    -      -       -      +
     72B  TYR*     4.5     2.9    +      -       -      -
    606B  TRP*     4.7    10.4    -      -       -      -
    741B  THR*     3.0    31.1    +      -       +      +
    742B  ASN*     2.5    16.4    +      -       -      +
    744B  LEU*     1.3    70.5    -      -       -      +
    746B  GLU*     1.3    62.6    +      -       +      +
    747B  PHE*     3.9     8.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 746 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    488B  LEU*     4.1    17.1    -      -       +      +
    683B  HIS*     3.7    10.3    -      -       +      -
    742B  ASN*     3.0    12.1    +      -       -      +
    744B  LEU      2.7     1.6    +      -       -      -
    745B  GLU*     1.3    84.1    -      -       +      +
    747B  PHE*     1.3    71.6    +      -       -      +
    748B  ARG*     2.8    50.1    +      -       +      +
----------------------------------------------------------
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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