Contacts of the helix formed by residues 597 - 621 (chain D) in PDB entry 5VOT


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 SER 597 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    806A  ALA*     4.5     7.0    -      -       -      +
    809A  VAL*     3.6    29.8    -      -       -      -
    810A  ALA*     4.5     7.4    -      -       -      -
    814A  PHE*     4.3     8.8    -      -       -      -
    543D  VAL*     3.2    20.9    -      -       -      +
    595D  SER*     2.7    17.2    +      -       -      -
    596D  LEU*     1.3    82.4    -      -       -      +
    598D  GLY*     1.3    62.6    +      -       -      -
    599D  ARG      3.0     1.3    -      -       -      -
    600D  ILE*     2.7    39.6    +      -       -      +
    601D  VAL      3.8     0.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 598 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    540D  LEU*     4.4    10.4    -      -       -      +
    543D  VAL*     4.4     9.0    -      -       -      -
    593D  PRO*     4.2    11.2    -      -       -      +
    595D  SER*     2.4    26.4    +      -       -      -
    597D  SER*     1.3    67.3    +      -       -      +
    599D  ARG*     1.3    56.6    +      -       -      -
    600D  ILE      3.0     0.2    -      -       -      -
    601D  VAL*     2.8    36.9    +      -       -      +
    602D  GLY*     2.9    12.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 599 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    574A  PHE*     4.0    25.6    -      -       +      -
    578A  TRP*     3.1    46.7    -      -       +      -
    581A  LEU*     5.2     0.2    -      -       -      +
    593D  PRO*     4.2    14.1    -      -       +      +
    595D  SER*     4.0     2.8    +      -       -      -
    596D  LEU*     4.8     4.6    -      -       -      +
    597D  SER      3.0     3.3    -      -       -      +
    598D  GLY*     1.3    75.7    -      -       -      +
    600D  ILE*     1.3    57.1    +      -       +      +
    603D  GLY*     2.9    23.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 600 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    802A  GLY*     4.4    15.3    -      -       -      +
    805A  LEU*     4.2    26.9    -      -       +      -
    806A  ALA*     4.5     6.1    -      -       +      -
    809A  VAL*     4.3    26.0    -      -       +      -
    596D  LEU      5.1     4.3    -      -       -      +
    597D  SER*     2.7    27.4    +      -       -      +
    599D  ARG*     1.3    71.2    -      -       +      +
    601D  VAL*     1.3    63.8    +      -       -      +
    603D  GLY*     3.1     1.6    +      -       -      -
    604D  VAL*     2.9    29.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 601 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    802A  GLY      5.6     0.7    -      -       -      +
    803A  LEU*     5.3     9.9    -      -       +      -
    806A  ALA*     3.8    25.4    -      -       +      -
    536D  VAL*     3.8    27.4    -      -       +      +
    539D  VAL*     5.1     7.4    -      -       +      -
    540D  LEU*     3.8    36.6    -      -       +      +
    543D  VAL*     5.3     3.6    -      -       +      -
    598D  GLY*     2.8    23.8    +      -       -      +
    600D  ILE*     1.3    71.2    -      -       -      +
    602D  GLY*     1.3    65.4    +      -       -      +
    604D  VAL*     3.1    11.3    -      -       +      +
    605D  TRP*     2.9    24.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 602 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    578A  TRP*     4.7     5.8    -      -       -      -
    540D  LEU*     5.2     1.4    -      -       -      +
    579D  PHE*     5.0    17.0    -      -       -      -
    593D  PRO*     5.3     5.4    -      -       -      -
    598D  GLY      2.9    12.0    +      -       -      -
    599D  ARG      3.9     2.0    -      -       -      -
    601D  VAL*     1.3    77.9    -      -       -      +
    603D  GLY*     1.3    61.1    +      -       -      +
    605D  TRP*     3.4     6.1    +      -       -      +
    606D  TRP*     2.9    40.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 603 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    578A  TRP*     4.3     0.6    -      -       -      -
    581A  LEU*     4.1    23.1    -      -       -      -
    585A  MET*     5.9     0.7    -      -       -      +
    599D  ARG      2.9    17.3    +      -       -      -
    600D  ILE*     3.1     3.5    +      -       -      -
    602D  GLY*     1.3    74.9    -      -       -      +
    604D  VAL*     1.3    65.8    +      -       -      +
    606D  TRP*     2.9    11.9    +      -       -      +
    607D  PHE*     2.9    21.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 604 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    795A  VAL*     6.4     1.1    -      -       +      -
    798A  ILE*     3.8    18.6    -      -       +      +
    799A  LEU*     3.6    45.1    -      -       +      +
    802A  GLY*     4.8    14.1    -      -       -      -
    803A  LEU*     5.3     3.6    -      -       +      +
    536D  VAL*     6.3     0.4    -      -       +      -
    600D  ILE*     2.9    20.7    +      -       +      +
    601D  VAL*     3.1    22.4    -      -       +      +
    603D  GLY*     1.3    71.8    -      -       -      -
    605D  TRP*     1.3    56.5    +      -       +      +
    607D  PHE*     3.3    11.3    +      -       +      +
    608D  PHE*     2.9    27.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with TRP 605 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    799A  LEU*     4.5     9.0    -      -       +      -
    529D  ILE*     5.1     3.6    -      -       +      -
    532D  ALA*     4.6     4.9    -      -       +      -
    533D  TYR*     4.1    32.8    -      +       +      -
    536D  VAL*     4.1    38.6    -      -       +      -
    579D  PHE*     5.4     6.3    -      +       -      -
    580D  SER*     3.8    10.7    +      -       -      +
    583D  ALA*     3.7    30.8    -      -       +      +
    584D  PHE*     4.0    31.3    -      +       +      +
    601D  VAL      2.9    19.3    +      -       -      +
    602D  GLY*     3.7     5.4    -      -       -      +
    604D  VAL*     1.3    76.0    -      -       +      +
    606D  TRP*     1.3    73.7    +      +       -      +
    608D  PHE*     3.1    40.6    +      +       +      +
    609D  THR*     2.9    25.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with TRP 606 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    578A  TRP*     3.7    37.2    -      +       -      -
    581A  LEU*     4.6     5.8    -      -       +      -
    582A  GLY*     3.7    29.2    -      -       -      -
    585A  MET*     4.3    23.8    -      -       +      -
    587A  GLN*     3.4    30.8    -      -       +      +
    588A  GLY      5.0     6.1    -      -       -      -
    590A  ASP*     5.3     3.8    -      -       -      -
    579D  PHE*     4.5    19.3    -      +       -      -
    583D  ALA*     4.5    22.9    +      -       +      +
    592D  SER*     6.1     2.5    -      -       -      -
    593D  PRO*     6.0     0.9    -      -       +      -
    602D  GLY*     2.9    23.6    +      -       -      -
    603D  GLY*     3.3    12.1    -      -       -      +
    605D  TRP*     1.3    85.3    -      +       -      +
    607D  PHE*     1.3    56.9    +      -       -      +
    609D  THR*     2.6    30.8    +      -       -      -
    610D  LEU*     2.9    13.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 607 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    517A  PHE*     3.3    40.8    -      +       -      -
    518A  LEU*     5.3     2.5    -      -       +      -
    526A  TRP*     5.1    15.7    -      +       -      -
    584A  PHE*     5.8     1.1    -      +       -      -
    585A  MET*     3.5    31.3    -      -       +      +
    795A  VAL*     4.1    17.2    -      -       +      +
    798A  ILE*     4.8    20.0    -      -       +      -
    603D  GLY      2.9    12.1    +      -       -      +
    604D  VAL*     3.6    14.8    -      -       +      +
    606D  TRP*     1.3    75.7    -      -       -      +
    608D  PHE*     1.3    60.0    +      -       -      +
    610D  LEU*     4.1    12.1    +      -       +      +
    611D  ILE*     3.8    17.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 608 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    792A  VAL*     4.8     6.7    -      -       +      -
    795A  VAL*     3.9    26.7    -      -       +      +
    796A  PHE*     4.3    23.8    -      +       -      -
    799A  LEU*     4.6    15.3    -      -       +      -
    529D  ILE*     4.9    23.3    -      -       +      -
    532D  ALA*     5.1     5.4    -      -       +      -
    584D  PHE*     5.0     4.3    -      +       -      -
    604D  VAL*     2.9    13.0    +      -       +      +
    605D  TRP*     3.3    47.8    -      +       +      +
    606D  TRP      3.0     0.2    -      -       -      -
    607D  PHE*     1.3    76.9    -      -       -      +
    609D  THR*     1.3    68.8    +      -       -      +
    611D  ILE*     3.1     8.7    -      -       -      +
    612D  ILE*     3.0    55.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 609 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    583D  ALA      4.2     6.2    +      -       -      +
    584D  PHE*     3.2    48.1    -      -       +      +
    585D  MET      5.5     0.2    -      -       -      -
    586D  ARG*     5.8     4.5    -      -       -      +
    605D  TRP*     2.9    18.4    +      -       -      -
    606D  TRP*     2.6    20.4    +      -       -      -
    608D  PHE*     1.3    74.4    -      -       -      +
    610D  LEU*     1.3    65.1    +      -       -      +
    612D  ILE*     3.1     3.8    +      -       -      -
    613D  ILE*     2.9    39.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 610 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    517A  PHE*     6.2     4.0    -      -       +      -
    526A  TRP*     6.2     3.4    -      -       +      -
    584A  PHE*     5.7     1.1    -      -       +      -
    585A  MET*     4.3    27.1    -      -       +      -
    586A  ARG*     5.3     6.5    -      -       +      +
    613A  ILE*     4.5    33.9    -      -       +      -
    616A  TYR*     4.9    15.7    -      -       +      -
    617A  THR*     5.0     5.4    -      -       +      -
    586D  ARG*     4.9    14.8    -      -       -      +
    606D  TRP      2.9    11.6    +      -       -      +
    607D  PHE*     4.2    12.8    -      -       +      +
    608D  PHE      3.3     0.4    -      -       -      -
    609D  THR*     1.3    77.6    -      -       -      +
    611D  ILE*     1.3    57.0    +      -       -      +
    613D  ILE*     4.9     2.0    -      -       -      -
    614D  SER*     2.6    49.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 611 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    517A  PHE*     3.5    32.7    -      -       +      +
    616A  TYR*     3.4    27.1    -      -       +      +
    620A  LEU*     4.0    15.5    -      -       +      -
    791A  ASN*     5.1    18.4    -      -       +      +
    795A  VAL*     3.7    29.2    -      -       +      -
    607D  PHE      3.8    10.4    +      -       -      +
    608D  PHE      3.1    15.7    -      -       -      +
    610D  LEU*     1.3    80.6    -      -       -      +
    612D  ILE*     1.3    71.8    +      -       +      +
    614D  SER*     4.5     2.0    -      -       -      -
    615D  SER*     2.9    30.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 612 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    791A  ASN*     5.8     2.7    -      -       +      +
    792A  VAL*     5.4    13.9    -      -       +      +
    795A  VAL*     5.0     3.4    -      -       +      -
    521D  LEU*     4.2    15.9    -      -       +      +
    529D  ILE*     4.7    19.1    -      -       +      -
    584D  PHE*     4.3    14.4    -      -       +      -
    608D  PHE*     3.0    57.5    +      -       +      +
    609D  THR      3.9     2.0    -      -       -      +
    611D  ILE*     1.3    89.1    -      -       +      +
    613D  ILE*     1.3    70.4    +      -       +      +
    615D  SER*     3.5     3.5    -      -       -      -
    616D  TYR*     3.0    23.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 613 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    610C  LEU*     4.8    25.6    -      -       +      -
    584D  PHE*     3.5    44.9    -      -       +      +
    585D  MET*     5.9     1.3    -      -       -      -
    586D  ARG*     2.5    48.9    -      -       +      +
    609D  THR*     2.9    34.0    +      -       +      +
    610D  LEU*     4.5     1.6    -      -       -      +
    612D  ILE*     1.3    74.8    -      -       +      +
    614D  SER*     1.3    59.5    +      -       -      +
    616D  TYR*     3.6     8.8    -      -       +      +
    617D  THR*     2.9    38.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 614 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    616A  TYR*     4.8     7.4    -      -       -      -
    617A  THR*     3.2    33.2    -      -       -      +
    620A  LEU*     5.3     4.4    -      -       -      +
    586D  ARG*     5.0     3.6    -      -       -      +
    610D  LEU*     2.6    36.5    +      -       -      -
    611D  ILE*     4.1     2.5    -      -       -      -
    613D  ILE*     1.3    82.3    -      -       -      +
    615D  SER*     1.3    65.4    +      -       -      +
    617D  THR*     3.3     4.8    +      -       -      -
    618D  ALA*     2.9    25.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 615 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    620A  LEU*     4.3    19.4    -      -       -      +
    624A  LEU*     4.1    18.7    -      -       -      +
    787A  LEU*     5.0     7.8    -      -       -      +
    791A  ASN*     5.2     5.9    +      -       -      -
    521D  LEU*     4.6     9.5    -      -       -      +
    611D  ILE*     2.9    27.6    +      -       -      +
    612D  ILE*     3.5     4.3    -      -       -      -
    614D  SER*     1.3    75.6    -      -       -      +
    616D  TYR*     1.3    63.7    +      -       -      +
    618D  ALA*     3.3     2.1    +      -       -      +
    619D  ASN*     2.9    23.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 616 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    610C  LEU*     5.0    15.0    -      -       +      -
    611C  ILE*     3.4    25.6    -      -       +      +
    614C  SER*     5.6     2.0    -      -       -      -
    516D  SER      3.9     9.0    +      -       -      -
    517D  PHE      3.1    23.0    +      -       -      -
    520D  PRO*     3.5    30.7    -      -       +      +
    521D  LEU*     3.6    30.4    -      -       +      +
    526D  TRP*     4.5    22.4    -      +       -      -
    612D  ILE*     3.0    11.7    +      -       +      +
    613D  ILE*     3.6    11.4    -      -       -      +
    615D  SER*     1.3    75.2    -      -       -      +
    617D  THR*     1.3    72.9    +      -       -      +
    619D  ASN*     2.9    16.9    +      -       +      +
    620D  LEU*     3.0    33.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 617 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    586C  ARG*     5.8     2.0    -      -       -      +
    610C  LEU*     4.6     4.9    -      -       -      +
    614C  SER*     3.1    40.7    +      -       -      +
    617C  THR*     3.9    16.8    -      -       -      +
    618C  ALA*     4.3     9.7    -      -       -      +
    586D  ARG*     5.2     2.2    +      -       -      -
    613D  ILE*     2.9    24.9    +      -       -      +
    614D  SER*     3.9     4.3    -      -       -      -
    616D  TYR*     1.3    79.7    -      -       -      +
    618D  ALA*     1.3    63.4    +      -       -      +
    620D  LEU*     3.3    17.2    +      -       -      +
    621D  ALA*     5.3     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 618 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    617A  THR*     4.6     4.0    -      -       -      +
    620A  LEU*     4.6     6.1    -      -       +      -
    621A  ALA*     3.6    43.2    -      -       +      +
    624A  LEU*     6.3     1.3    -      -       +      -
    625A  THR*     6.0     1.6    -      -       -      -
    614D  SER*     2.9    17.9    +      -       -      +
    615D  SER*     3.6     7.4    -      -       -      +
    617D  THR*     1.3    79.1    -      -       -      +
    619D  ASN*     1.3    62.4    +      -       -      +
    620D  LEU      3.5     0.2    +      -       -      -
    621D  ALA*     4.0    10.7    +      -       -      +
    622D  ALA      5.2     0.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 619 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    624A  LEU      5.6     3.1    -      -       -      +
    785A  SER*     3.7    25.2    +      -       -      +
    786A  ALA      4.7     0.6    -      -       -      -
    787A  LEU*     4.5    11.8    -      -       +      +
    520D  PRO*     3.9    24.9    -      -       +      +
    521D  LEU*     4.3    12.0    -      -       +      +
    615D  SER*     2.9    14.0    +      -       -      +
    616D  TYR*     2.9    12.0    +      -       +      +
    618D  ALA*     1.3    78.0    -      -       -      +
    620D  LEU*     1.3    66.3    +      -       -      +
    621D  ALA      3.0     1.7    +      -       -      -
    622D  ALA*     3.6     6.9    +      -       -      +
    623D  PHE*     3.5    16.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 620 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    611C  ILE*     4.4    12.1    -      -       +      +
    614C  SER*     4.6     5.4    -      -       -      +
    615C  SER*     3.5    49.4    -      -       -      +
    618C  ALA*     3.7     9.9    -      -       +      -
    619C  ASN*     4.7     4.7    -      -       -      +
    516D  SER      6.1     0.2    -      -       -      +
    520D  PRO*     5.8     3.1    -      -       -      -
    616D  TYR*     3.0    39.2    +      -       +      +
    617D  THR*     3.3    12.9    +      -       -      +
    619D  ASN*     1.3    76.8    -      -       -      +
    621D  ALA*     1.3    64.6    +      -       -      +
    623D  PHE*     3.0    28.1    +      -       +      +
    624D  LEU*     4.3    14.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 621 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    618C  ALA*     3.6    41.7    -      -       +      +
    619C  ASN*     4.2    15.4    +      -       -      +
    621C  ALA*     5.6     1.6    -      -       +      -
    622C  ALA*     4.3    16.4    -      -       +      +
    618D  ALA      4.0     9.8    +      -       -      +
    619D  ASN      3.0     2.6    +      -       -      -
    620D  LEU*     1.3    78.1    -      -       -      +
    622D  ALA*     1.3    58.6    +      -       -      +
    623D  PHE      3.0    15.6    -      -       -      +
    624D  LEU*     5.2     0.2    -      -       -      +
----------------------------------------------------------
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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