Contacts of the helix formed by residues 504 - 528 (chain A) in PDB entry 1VDV


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 MET 504 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    425A  SER*     5.3     5.6    -      -       -      +
    433A  LYS*     3.3    39.7    -      -       -      +
    502A  GLY      3.9     2.9    -      -       -      +
    503A  GLY*     1.3    73.8    -      -       -      +
    505A  ILE*     1.3    65.4    +      -       -      +
    506A  GLU*     3.4     5.2    -      -       -      -
    507A  PHE*     3.4    14.4    +      -       +      -
    508A  ARG*     3.0    25.0    +      -       +      +
   1210A  GLU*     3.9     7.6    -      -       -      +
   1212A  HIS*     3.8    31.0    -      -       +      +
   1301A  THR*     5.4     2.2    -      -       -      +
   1303A  GLU*     3.3    55.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 505 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    496A  LEU*     3.9    37.0    -      -       +      +
    497A  SER      3.6    20.4    -      -       -      +
    498A  PRO*     3.9    22.0    -      -       +      +
    500A  ALA*     4.3     8.3    -      -       +      +
    503A  GLY*     3.4    27.8    -      -       -      +
    504A  MET*     1.3    77.7    -      -       -      +
    506A  GLU*     1.3    78.8    +      -       +      +
    508A  ARG*     4.0     1.0    -      -       -      +
    509A  ARG*     3.1    36.4    +      -       -      +
   1319A  THR*     5.9     4.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 506 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    504A  MET*     4.4     3.6    -      -       -      -
    505A  ILE*     1.3    92.8    +      -       +      +
    507A  PHE*     1.3    63.4    +      -       -      +
    509A  ARG*     3.4     5.5    +      -       -      +
    510A  THR*     3.0    30.0    +      -       -      +
   1303A  GLU*     4.9     2.8    -      -       -      +
   1307A  ASN*     4.1    19.9    +      -       -      +
   1317A  CYS*     4.8     1.8    -      -       -      +
   1318A  VAL      3.9     9.6    -      -       -      +
   1319A  THR*     2.8    41.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 507 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    423A  GLN*     4.0     6.5    -      -       +      -
    424A  ALA      4.7     3.1    -      -       -      -
    433A  LYS*     4.3    19.1    -      -       +      -
    504A  MET*     3.4    22.5    +      -       +      +
    505A  ILE      3.4     0.2    -      -       -      -
    506A  GLU*     1.3    78.9    +      -       -      +
    508A  ARG*     1.3    58.3    +      -       -      +
    510A  THR*     3.3     3.6    +      -       -      -
    511A  LEU*     3.0    52.4    +      -       +      +
   1168A  THR      3.4    26.5    -      -       -      -
   1302A  PRO*     3.6    16.2    -      -       +      -
   1303A  GLU*     3.6    41.5    -      -       +      -
   1306A  ARG*     3.4    29.2    -      -       +      -
   1307A  ASN*     3.6    10.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 508 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    433A  LYS*     3.5    29.6    -      -       +      +
    434A  VAL*     3.5    19.7    -      -       +      +
    458A  GLY      2.9    30.6    +      -       -      -
    459A  MET*     3.8    10.8    -      -       -      +
    460A  ALA      5.3     0.4    -      -       -      +
    496A  LEU*     3.7    25.3    -      -       +      +
    500A  ALA*     3.8    17.6    -      -       -      +
    501A  PRO      3.1    26.3    +      -       -      -
    502A  GLY*     4.8     2.6    -      -       -      -
    503A  GLY      2.8    31.1    +      -       -      +
    504A  MET*     3.0    15.4    +      -       +      +
    505A  ILE*     4.0     3.3    -      -       -      +
    507A  PHE*     1.3    75.3    -      -       +      +
    509A  ARG*     1.3    65.7    +      -       -      +
    511A  LEU*     3.3     3.8    +      -       -      +
    512A  THR*     3.1    26.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 509 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    459A  MET*     4.3     1.1    -      -       +      -
    491A  ALA*     2.5    47.8    +      -       -      +
    494A  LEU      4.1    18.7    +      -       -      +
    495A  SER*     4.6     5.3    -      -       -      +
    496A  LEU*     4.3    18.8    -      -       +      +
    505A  ILE*     3.1    32.2    +      -       -      +
    506A  GLU*     3.9     4.3    -      -       -      +
    508A  ARG*     1.3    76.0    -      -       -      +
    510A  THR*     1.3    60.9    +      -       -      +
    512A  THR*     2.5    29.6    +      -       -      +
    513A  LEU*     3.3     4.2    +      -       -      +
   1316A  LEU      4.6     1.4    +      -       -      -
   1317A  CYS*     2.8    51.9    +      -       +      +
   1318A  VAL      5.0     0.4    -      -       -      -
   1319A  THR*     4.9     7.3    +      -       -      +
   1322A  PRO*     5.7     4.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 510 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    506A  GLU*     3.0    20.4    +      -       -      +
    507A  PHE*     3.6     7.4    -      -       -      -
    509A  ARG*     1.3    77.4    -      -       -      +
    511A  LEU*     1.3    54.0    +      -       -      +
    513A  LEU*     3.3     4.0    +      -       -      +
    514A  SER*     2.7    36.3    +      -       -      +
   1306A  ARG*     3.4    48.0    -      -       +      +
   1307A  ASN*     4.8     2.9    +      -       -      +
   1313A  PHE*     4.7     1.6    -      -       +      -
   1314A  THR*     3.8    30.4    -      -       +      +
   1317A  CYS*     3.6    13.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 511 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    423A  GLN*     3.9    22.7    -      -       +      -
    433A  LYS*     4.5     5.2    -      -       +      -
    434A  VAL*     3.9    28.5    -      -       +      -
    507A  PHE*     3.0    50.4    +      -       +      +
    508A  ARG*     3.6     4.9    -      -       -      +
    509A  ARG      3.2     0.2    -      -       -      -
    510A  THR*     1.3    73.6    -      -       -      +
    512A  THR*     1.3    60.7    +      -       -      +
    514A  SER*     4.1     2.2    -      -       -      -
    515A  PHE*     2.8    44.6    +      -       +      +
   1167A  LEU      3.9     6.1    -      -       -      +
   1168A  THR*     3.7    36.8    -      -       -      +
   1306A  ARG*     4.8     1.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 512 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    434A  VAL*     4.3     3.4    -      -       +      -
    456A  TYR*     2.8    42.6    +      -       +      -
    459A  MET*     3.5    38.3    -      -       +      +
    490A  LEU*     3.7     4.9    +      -       -      +
    494A  LEU*     4.0    17.3    -      -       +      +
    508A  ARG      3.1    16.5    +      -       -      +
    509A  ARG*     2.5    21.0    +      -       -      +
    511A  LEU*     1.3    77.5    -      -       -      +
    513A  LEU*     1.3    70.9    +      -       -      +
    516A  PHE      3.4     8.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 513 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    487A  CYS*     3.5    37.7    -      -       +      +
    490A  LEU*     3.3    39.3    -      -       +      -
    491A  ALA*     3.9     9.4    -      -       +      +
    509A  ARG      3.3    10.4    +      -       -      +
    510A  THR      3.8     4.7    -      -       -      +
    511A  LEU      3.2     0.2    -      -       -      -
    512A  THR*     1.3    87.8    +      -       -      +
    514A  SER*     1.3    60.9    +      -       -      +
    516A  PHE*     3.0     5.4    +      -       -      +
    517A  PHE*     2.9    27.6    +      -       -      +
   1313A  PHE*     4.2    21.1    -      -       +      +
   1316A  LEU*     4.0    23.8    -      -       +      -
   1317A  CYS*     3.8    13.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 514 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    510A  THR*     2.7    26.5    +      -       -      +
    511A  LEU*     3.8     5.8    -      -       -      -
    513A  LEU*     1.3    72.7    -      -       -      +
    515A  PHE*     1.3    62.2    +      -       -      +
    517A  PHE*     3.2    10.5    +      -       -      +
    518A  LYS*     3.0    29.5    +      -       -      +
   1167A  LEU*     3.1    33.7    +      -       -      +
   1306A  ARG*     3.0    27.4    +      -       -      -
   1313A  PHE*     4.3     5.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 515 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    421A  PHE*     3.4    35.2    -      -       +      -
    422A  LYS      4.0     1.8    -      -       -      -
    423A  GLN*     3.6    32.1    -      -       +      -
    434A  VAL*     3.5    38.8    -      -       +      -
    435A  THR      4.4     0.4    -      -       -      -
    436A  CYS*     3.6    19.1    -      -       +      -
    438A  MET*     3.9    15.0    -      -       +      -
    456A  TYR*     4.6     1.6    -      +       +      -
    511A  LEU*     2.8    31.5    +      -       +      +
    512A  THR      4.0     1.8    -      -       -      +
    514A  SER*     1.3    73.3    -      -       -      +
    516A  PHE*     1.3    58.3    +      -       -      +
    518A  LYS*     3.2    21.7    +      -       +      +
    519A  PHE*     2.9    24.9    +      -       -      +
   1168A  THR*     3.9    23.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 516 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    438A  MET*     3.7     9.8    -      -       +      +
    452A  LEU*     5.1     2.7    -      -       +      -
    454A  LEU*     3.7    30.3    -      -       +      -
    478A  TRP*     4.2    14.1    -      +       -      -
    482A  LEU*     3.8    14.1    -      -       +      -
    483A  LEU*     3.6    33.2    -      -       +      -
    486A  VAL*     3.5    44.0    -      -       +      -
    487A  CYS*     4.4     6.3    -      -       -      -
    490A  LEU*     3.9    10.5    -      -       +      -
    512A  THR      3.4    10.4    +      -       -      +
    513A  LEU      3.0     8.7    +      -       -      +
    515A  PHE*     1.3    77.8    -      -       -      +
    517A  PHE*     1.3    53.8    +      -       -      +
    519A  PHE*     3.1    20.6    +      +       -      +
    520A  TYR*     2.6    36.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 517 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    483A  LEU*     3.8    31.9    -      -       +      -
    513A  LEU      2.9    11.0    +      -       -      +
    514A  SER*     3.2     8.7    +      -       -      +
    516A  PHE*     1.3    76.3    -      -       -      +
    518A  LYS*     1.3    57.2    +      -       -      +
    520A  TYR*     3.1     7.4    +      +       -      +
    521A  LEU*     2.9    63.7    +      -       +      +
    542A  TYR*     3.9    12.8    -      +       -      -
    993A  TRP*     3.4    44.6    -      +       -      -
   1167A  LEU*     3.8    19.5    -      -       +      -
   1312A  LYS*     4.9     4.3    -      -       -      -
   1313A  PHE*     3.3    35.7    -      +       +      -
   5002A  GOL      5.1     1.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 518 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    421A  PHE*     3.7    34.1    -      -       +      -
    514A  SER      3.0    24.8    +      -       -      +
    515A  PHE*     3.4    30.1    -      -       +      +
    517A  PHE*     1.3    78.0    -      -       -      +
    519A  PHE*     1.3    52.9    +      -       -      +
    521A  LEU*     3.4     6.5    +      -       -      +
    522A  THR*     2.6    39.2    +      -       -      +
    545A  ALA      3.7    25.7    +      -       -      +
    546A  THR*     4.7     0.9    -      -       -      +
    547A  LEU      5.2     6.1    +      -       -      -
    548A  LEU*     5.7     1.0    -      -       -      +
   1165A  ASP*     4.8     6.3    +      -       -      -
   1167A  LEU*     3.8    23.6    -      -       +      -
   1168A  THR*     4.2    18.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 519 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    417A  PHE*     4.2     5.6    -      -       +      -
    418A  PHE      4.2     1.6    -      -       -      -
    419A  SER*     3.4    28.9    -      -       -      -
    421A  PHE*     3.9     7.1    -      -       +      -
    438A  MET*     3.5    61.9    -      -       +      -
    439A  ARG      3.9     3.1    -      -       -      -
    440A  VAL*     3.8    21.8    -      -       +      -
    452A  LEU*     4.3     5.6    -      -       +      -
    454A  LEU*     4.1     9.9    -      -       +      -
    478A  TRP*     3.9    19.3    -      +       -      -
    515A  PHE      2.9     6.6    +      -       -      +
    516A  PHE*     3.4    23.6    -      +       -      +
    518A  LYS*     1.3    75.9    -      -       -      +
    520A  TYR*     1.3    57.7    +      -       -      +
    522A  THR*     3.3     3.8    +      -       -      -
    523A  VAL*     2.9    47.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 520 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    478A  TRP*     3.1    63.1    +      +       -      +
    479A  ASN*     2.8    44.8    -      -       -      -
    480A  GLU*     3.0     6.0    +      -       -      +
    482A  LEU*     4.4     6.7    -      -       +      -
    483A  LEU*     3.9    40.6    -      -       +      -
    516A  PHE*     2.6    20.6    +      +       +      +
    517A  PHE*     3.3    10.1    -      +       -      +
    519A  PHE*     1.3    73.6    -      -       -      +
    521A  LEU*     1.3    72.0    +      -       +      +
    524A  LEU*     3.1    39.1    +      -       +      +
   5002A  GOL      3.7    16.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 521 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    517A  PHE*     2.9    54.0    +      -       +      +
    518A  LYS*     3.9     2.9    -      -       -      +
    520A  TYR*     1.3    80.5    -      -       +      +
    522A  THR*     1.3    66.7    +      -       -      +
    524A  LEU*     3.2     7.3    +      -       +      +
    525A  LYS*     3.1    22.0    +      -       -      +
    538A  LEU*     3.9    16.4    -      -       +      +
    542A  TYR*     3.9    15.7    -      -       +      +
    545A  ALA*     3.8    25.1    -      -       +      -
    546A  THR*     3.7    15.9    -      -       +      +
   5002A  GOL      3.5    33.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 522 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    419A  SER*     4.1    14.5    +      -       -      +
    421A  PHE*     4.7     5.4    -      -       -      -
    518A  LYS*     2.6    22.5    +      -       -      +
    519A  PHE*     3.6     5.6    -      -       -      -
    521A  LEU*     1.3    76.2    -      -       -      +
    523A  VAL*     1.3    58.7    +      -       +      +
    525A  LYS*     3.2     7.6    +      -       +      +
    526A  LYS*     2.9    56.5    +      -       +      +
    546A  THR*     3.6    33.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 523 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    417A  PHE*     4.3    12.1    -      -       +      -
    440A  VAL*     4.1     4.9    -      -       +      -
    442A  PHE*     3.6    33.7    -      -       +      -
    478A  TRP*     3.5    26.7    -      -       +      +
    519A  PHE*     2.9    52.4    +      -       +      +
    522A  THR*     1.3    77.1    -      -       +      +
    524A  LEU*     1.3    60.0    +      -       -      +
    526A  LYS*     3.2     7.2    +      -       +      +
    527A  LEU*     2.8    34.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 524 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    447A  MET*     3.9    22.4    -      -       +      -
    478A  TRP*     3.7    26.9    -      -       +      +
    520A  TYR*     3.1    44.1    +      -       +      +
    521A  LEU*     3.2     8.7    +      -       +      +
    523A  VAL*     1.3    76.7    -      -       -      +
    525A  LYS*     1.3    57.6    +      -       -      +
    527A  LEU*     3.2     6.3    +      -       -      +
    528A  GLY*     2.8    26.2    +      -       -      -
    538A  LEU*     4.4    18.4    -      -       +      -
   5002A  GOL      3.6    25.1    -      -       -      +
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Residues in contact with LYS 525 (chain A). Click here for Legend to table.
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                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    521A  LEU      3.1    12.6    +      -       -      +
    522A  THR*     3.3    12.3    -      -       +      +
    524A  LEU*     1.3    77.1    -      -       -      +
    526A  LYS*     1.3    63.2    +      -       +      +
    528A  GLY*     3.1    10.4    +      -       -      -
    529A  LYS      4.6     0.7    -      -       -      +
    530A  ASP*     3.1    28.8    -      -       -      +
    537A  LYS*     5.9     4.5    -      -       -      +
    538A  LEU*     4.3    18.5    -      -       +      +
    543A  THR*     4.6    11.1    -      -       -      +
    546A  THR*     3.1    34.5    +      -       +      +
    547A  LEU*     3.9    20.2    -      -       -      +
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Residues in contact with LYS 526 (chain A). Click here for Legend to table.
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                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    325A  GLU*     2.6    34.2    +      -       -      +
    328A  ARG*     4.7     8.2    -      -       -      +
    417A  PHE*     3.7    45.1    -      -       +      +
    418A  PHE      3.0    20.2    +      -       -      +
    419A  SER*     4.4     0.8    +      -       -      -
    519A  PHE*     6.2     0.4    -      -       -      -
    522A  THR*     2.9    42.3    +      -       +      +
    523A  VAL*     3.8     4.7    -      -       +      +
    525A  LYS*     1.3    78.3    -      -       +      +
    527A  LEU*     1.3    62.3    +      -       -      +
    529A  LYS*     3.4    15.5    +      -       -      +
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Residues in contact with LEU 527 (chain A). Click here for Legend to table.
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                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    415A  ASP*     6.0     2.0    -      -       -      +
    417A  PHE*     3.8    25.8    -      -       +      -
    442A  PHE*     3.8    15.5    -      -       +      -
    446A  SER      4.0    19.3    -      -       -      +
    447A  MET*     3.9    37.9    -      -       +      -
    478A  TRP*     4.5     5.4    -      -       +      -
    523A  VAL*     2.8    35.9    +      -       +      +
    524A  LEU*     3.5     5.2    -      -       -      +
    526A  LYS*     1.3    72.2    -      -       -      +
    528A  GLY*     1.3    54.6    +      -       -      +
    529A  LYS*     2.6    36.1    +      -       -      +
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Residues in contact with GLY 528 (chain A). Click here for Legend to table.
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                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    524A  LEU      2.8    14.0    +      -       -      -
    525A  LYS*     3.1     9.2    +      -       -      -
    527A  LEU*     1.3    74.2    -      -       -      +
    529A  LYS*     1.3    64.5    +      -       -      +
    530A  ASP*     2.8    24.3    +      -       -      +
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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