Contacts of the helix formed by residues 554 - 586 (chain B) in PDB entry 4N3Z


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 ARG 554 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    553B  THR*     1.3    68.2    -      -       -      +
    555B  ASP*     1.3    59.6    +      -       -      +
    556B  GLN      3.3     0.2    -      -       -      -
    557B  VAL*     3.6    26.3    -      -       -      +
    558B  LYS*     2.9    42.2    +      -       +      +
    553C  THR*     2.7    48.0    +      -       -      +
    556C  GLN*     2.9    31.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 555 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    553B  THR*     2.7    18.6    +      -       -      +
    554B  ARG*     1.3    75.1    -      -       -      +
    556B  GLN*     1.3    63.3    +      -       +      +
    558B  LYS*     3.2    19.9    +      -       -      +
    559B  LYS*     3.2    21.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 556 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    553B  THR*     2.7    30.2    +      -       +      +
    555B  ASP*     1.3    74.3    -      -       +      +
    557B  VAL*     1.3    54.3    +      -       -      +
    559B  LYS*     2.9     8.0    +      -       -      +
    560B  LEU*     2.7    54.9    +      -       +      +
    557C  VAL*     4.1    25.2    -      -       +      +
    561C  GLN*     4.4     4.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 557 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    553B  THR      4.2     1.6    -      -       -      +
    554B  ARG*     3.4    47.8    +      -       -      +
    555B  ASP      3.4     0.6    -      -       -      -
    556B  GLN*     1.3    78.1    -      -       -      +
    558B  LYS*     1.3    59.0    +      -       +      +
    560B  LEU*     3.7     6.7    -      -       -      +
    561B  GLN*     3.2    54.7    +      -       -      +
    553C  THR      4.5     2.5    -      -       -      +
    556C  GLN*     4.1    20.2    -      -       +      +
    557C  VAL*     3.4    28.0    -      -       +      +
    560C  LEU*     3.7     7.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 558 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    554B  ARG*     2.9    25.8    +      -       +      +
    555B  ASP*     3.2    26.0    +      -       -      +
    557B  VAL*     1.3    78.7    -      -       +      +
    559B  LYS*     1.3    61.3    +      -       +      +
    561B  GLN*     3.8    15.2    +      -       -      +
    562B  LEU*     3.4    19.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 559 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    555B  ASP*     3.2    18.1    +      -       -      +
    556B  GLN*     2.9     6.5    +      -       -      +
    558B  LYS*     1.3    78.7    -      -       +      +
    560B  LEU*     1.3    59.7    +      -       +      +
    561B  GLN      3.2     0.2    -      -       -      -
    562B  LEU*     3.2    13.0    +      -       +      +
    563B  MET*     2.8    50.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 560 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    556B  GLN*     2.7    45.3    +      -       -      +
    557B  VAL*     3.7     5.8    -      -       -      +
    559B  LYS*     1.3    72.7    -      -       -      +
    561B  GLN*     1.3    56.4    +      -       -      +
    563B  MET*     3.5     9.0    +      -       -      +
    564B  LEU*     2.9    30.7    +      -       -      +
    557C  VAL*     4.3    24.0    -      -       +      +
    560C  LEU*     4.0    31.9    -      -       +      +
    561C  GLN*     4.3    16.4    -      -       +      -
    564C  LEU*     3.7    31.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 561 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    557B  VAL*     3.2    40.8    +      -       -      +
    558B  LYS*     3.8    14.4    -      -       -      +
    560B  LEU*     1.3    72.5    -      -       -      +
    562B  LEU*     1.3    60.5    +      -       -      +
    564B  LEU*     3.4     7.5    +      -       -      +
    565B  ARG*     2.9    30.5    +      -       -      +
    556C  GLN*     5.0     4.0    +      -       -      -
    560C  LEU*     3.7    21.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 562 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    558B  LYS      3.4    12.3    +      -       -      +
    559B  LYS*     3.2    17.4    +      -       +      +
    561B  GLN*     1.3    79.1    -      -       -      +
    563B  MET*     1.3    59.7    +      -       +      +
    565B  ARG*     3.4    17.4    +      -       +      +
    566B  GLN*     3.0    60.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET 563 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    559B  LYS*     2.8    42.8    +      -       +      +
    560B  LEU*     3.8     7.9    -      -       -      +
    562B  LEU*     1.3    74.9    -      -       +      +
    564B  LEU*     1.3    59.8    +      -       -      +
    566B  GLN*     3.8    11.5    -      -       -      +
    567B  ALA*     2.9    30.3    +      -       -      +
    564C  LEU*     3.7    27.7    -      -       +      +
    568C  ASN*     6.3     0.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 564 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    560B  LEU      2.9    19.0    +      -       -      +
    561B  GLN*     3.6     5.8    -      -       -      +
    562B  LEU      3.3     0.2    -      -       -      -
    563B  MET*     1.3    74.3    -      -       -      +
    565B  ARG*     1.3    64.8    +      -       -      +
    567B  ALA*     3.3     4.1    +      -       -      +
    568B  ASN*     3.0    40.1    +      -       -      +
    560C  LEU*     3.9    25.8    -      -       +      -
    563C  MET*     3.5    51.8    -      -       +      +
    564C  LEU*     3.6    14.7    -      -       +      +
    567C  ALA*     3.9    11.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 565 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    561B  GLN      2.9    17.8    +      -       -      +
    562B  LEU*     3.7    17.8    -      -       -      +
    564B  LEU*     1.3    75.7    -      -       -      +
    566B  GLN*     1.3    66.6    +      -       +      +
    568B  ASN*     3.0    19.5    +      -       +      +
    569B  ASP*     2.8    35.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 566 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    562B  LEU*     3.0    45.7    +      -       +      +
    563B  MET*     3.8    10.8    -      -       -      +
    565B  ARG*     1.3    80.5    -      -       +      +
    567B  ALA*     1.3    62.5    +      -       -      +
    569B  ASP*     2.9    21.5    -      -       -      +
    570B  GLN*     3.2    18.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 567 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    563B  MET      2.9    19.1    +      -       -      +
    564B  LEU*     3.6     6.5    -      -       -      +
    566B  GLN*     1.3    76.9    -      -       -      +
    568B  ASN*     1.3    57.5    +      -       -      +
    570B  GLN*     4.0     6.8    -      -       -      +
    571B  LEU*     3.0    30.0    +      -       -      +
    564C  LEU*     4.8     1.8    -      -       +      -
    567C  ALA*     4.2    23.3    -      -       +      -
    568C  ASN*     4.2    15.3    -      -       -      +
    571C  LEU*     4.6    11.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 568 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    564B  LEU*     3.0    38.3    +      -       -      +
    565B  ARG*     3.0    12.7    +      -       +      +
    567B  ALA*     1.3    75.6    -      -       -      +
    569B  ASP*     1.3    61.0    +      -       -      +
    571B  LEU*     3.2    13.2    +      -       -      +
    572B  GLU*     3.0    28.1    +      -       -      +
    567C  ALA*     4.1    15.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 569 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    565B  ARG*     2.8    39.8    +      -       -      +
    566B  GLN*     2.9    28.1    -      -       -      +
    568B  ASN*     1.3    76.4    -      -       -      +
    570B  GLN*     1.3    58.7    +      -       -      +
    572B  GLU*     3.4     8.3    +      -       -      +
    573B  LYS*     3.1    27.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 570 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    566B  GLN      3.2    20.1    +      -       -      +
    567B  ALA*     4.0     2.2    -      -       -      +
    569B  ASP*     1.3    78.0    +      -       -      +
    571B  LEU*     1.3    60.2    +      -       -      +
    573B  LYS*     3.2    22.1    +      -       -      +
    574B  THR*     2.9    32.2    +      -       -      -
    571C  LEU*     4.1    25.8    -      -       +      +
    575C  MET*     5.5     6.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 571 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    567B  ALA      3.0    21.4    +      -       -      +
    568B  ASN*     3.2    14.8    +      -       -      +
    570B  GLN*     1.3    74.7    -      -       -      +
    572B  GLU*     1.3    60.0    +      -       -      +
    574B  THR*     2.9     5.5    +      -       -      -
    575B  MET*     2.9    42.3    +      -       +      +
    567C  ALA*     4.4     8.3    -      -       -      +
    570C  GLN*     3.7    23.1    -      -       +      -
    571C  LEU*     3.6    31.2    -      -       +      +
    574C  THR*     3.3    31.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 572 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    568B  ASN      3.0    12.9    +      -       -      +
    569B  ASP*     3.7    11.2    -      -       -      +
    571B  LEU*     1.3    76.6    -      -       -      +
    573B  LYS*     1.3    58.2    +      -       -      +
    575B  MET*     3.1    22.3    +      -       -      +
    576B  LYS*     3.0    38.1    +      -       -      +
    579B  GLN*     5.6     1.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 573 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    569B  ASP      3.1    14.1    +      -       -      +
    570B  GLN*     3.3    24.5    -      -       -      +
    571B  LEU      3.1     0.2    -      -       -      -
    572B  GLU*     1.3    76.9    -      -       -      +
    574B  THR*     1.3    59.3    +      -       -      +
    576B  LYS*     3.1    39.8    -      -       -      +
    577B  ASP*     2.8    30.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 574 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    570B  GLN*     2.9    21.4    +      -       -      -
    571B  LEU      2.9     9.5    +      -       -      -
    573B  LYS*     1.3    75.5    -      -       -      +
    575B  MET*     1.3    57.8    +      -       -      +
    577B  ASP*     3.5     9.5    -      -       -      +
    578B  LYS*     3.0    24.8    +      -       -      +
    571C  LEU*     3.5    16.1    -      -       -      +
    574C  THR*     3.8    21.1    -      -       +      +
    575C  MET*     3.9    30.7    -      -       +      +
    578C  LYS*     4.4    15.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with MET 575 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    571B  LEU*     2.9    35.2    +      -       +      +
    572B  GLU*     3.1    29.1    +      -       -      +
    574B  THR*     1.3    75.7    -      -       -      +
    576B  LYS*     1.3    59.8    +      -       -      +
    577B  ASP      3.1     1.3    -      -       -      -
    578B  LYS*     3.2     6.9    +      -       +      +
    579B  GLN*     2.8    52.9    +      -       -      +
    570C  GLN*     4.5    11.4    -      -       +      +
    574C  THR*     3.9    20.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 576 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    572B  GLU*     3.0    17.8    +      -       -      +
    573B  LYS*     3.1    52.4    -      -       -      +
    575B  MET*     1.3    75.0    -      -       -      +
    577B  ASP*     1.3    75.7    +      -       -      +
    579B  GLN*     3.6     7.5    -      -       -      +
    580B  GLU*     3.2    38.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 577 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    573B  LYS*     2.8    21.0    -      -       -      +
    574B  THR*     3.5     9.8    -      -       -      +
    575B  MET      3.1     0.4    -      -       -      -
    576B  LYS*     1.3    95.3    +      -       -      +
    578B  LYS*     1.3    65.7    +      -       -      +
    580B  GLU*     3.4     7.4    +      -       -      +
    581B  LEU*     3.1    26.6    +      -       +      +
    578C  LYS*     3.7    31.2    +      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 578 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    574B  THR      3.0    17.8    +      -       -      +
    575B  MET*     3.2     8.7    +      -       +      +
    577B  ASP*     1.3    74.3    -      -       -      +
    579B  GLN*     1.3    71.2    +      -       -      +
    581B  LEU*     3.2     6.1    +      -       -      +
    582B  GLU*     3.0    47.5    +      -       -      +
    573C  LYS*     4.9     1.6    -      -       -      +
    574C  THR*     4.2    17.1    -      -       +      +
    577C  ASP*     3.2    40.1    +      -       +      -
    578C  LYS*     4.4    12.0    -      -       +      +
    581C  LEU*     3.5    18.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 579 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    572B  GLU*     5.6     1.8    +      -       -      -
    575B  MET*     2.8    50.1    +      -       -      +
    576B  LYS*     3.6     9.8    -      -       -      +
    578B  LYS*     1.3    85.6    -      -       -      +
    580B  GLU*     1.3    53.0    +      -       +      +
    582B  GLU*     3.0    20.9    +      -       -      +
    583B  ASP*     2.8    44.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 580 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    576B  LYS*     3.2    23.7    +      -       +      +
    577B  ASP*     4.1     5.8    -      -       -      +
    578B  LYS      3.4     0.2    -      -       -      -
    579B  GLN*     1.3    78.6    -      -       +      +
    581B  LEU*     1.3    60.5    +      -       -      +
    583B  ASP*     3.7    13.5    -      -       +      +
    584B  PHE*     2.8    30.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 581 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    577B  ASP*     3.1    13.1    +      -       +      +
    578B  LYS      3.4     9.2    -      -       -      +
    580B  GLU*     1.3    77.7    -      -       -      +
    582B  GLU*     1.3    56.0    +      -       -      +
    584B  PHE*     3.7     3.6    -      -       +      +
    585B  ILE*     3.0    37.5    +      -       -      +
    601B  LEU*     5.1    10.1    -      -       +      -
    578C  LYS*     3.5    44.2    -      -       +      +
    581C  LEU*     3.7    15.9    -      -       +      -
    582C  GLU*     3.5    21.1    -      -       +      +
    585C  ILE*     3.7    27.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 582 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    578B  LYS*     3.0    44.9    +      -       -      +
    579B  GLN*     3.2    21.5    -      -       -      +
    581B  LEU*     1.3    73.9    -      -       -      +
    583B  ASP*     1.3    61.1    +      -       -      +
    585B  ILE*     3.1     7.3    +      -       -      -
    586B  LYS*     2.9    46.8    +      -       +      +
    581C  LEU*     3.7    17.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 583 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    579B  GLN*     2.8    32.7    +      -       -      +
    580B  GLU*     3.5    13.8    +      -       +      +
    582B  GLU*     1.3    74.1    -      -       -      +
    584B  PHE*     1.3    57.6    +      -       -      +
    586B  LYS*     3.1    34.5    +      -       -      +
    587B  GLN*     4.3     6.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 584 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    580B  GLU      2.8    19.7    +      -       -      +
    581B  LEU*     3.7     5.4    -      -       +      +
    583B  ASP*     1.3    75.7    -      -       -      +
    585B  ILE*     1.3    65.2    +      -       -      +
    587B  GLN*     3.2    34.1    -      -       -      +
    594B  HIS*     3.4    48.9    -      +       -      -
    597B  SER*     4.1    13.2    -      -       -      -
    598B  ALA*     4.0    16.4    -      -       +      -
    601B  LEU*     3.8    29.8    -      -       +      -
    585C  ILE*     3.6    29.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 585 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    581B  LEU      3.0    22.8    +      -       -      +
    582B  GLU*     3.7     4.5    -      -       -      +
    584B  PHE*     1.3    77.0    -      -       +      +
    586B  LYS*     1.3    62.6    +      -       +      +
    587B  GLN      3.1    14.9    +      -       -      +
    589B  SER*     5.6     1.6    -      -       -      -
    594B  HIS*     4.9     3.4    -      -       -      -
    581C  LEU*     3.7    48.2    -      -       +      +
    584C  PHE*     3.7    33.4    -      -       +      -
    585C  ILE*     3.8    21.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 586 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    582B  GLU*     2.9    30.9    +      -       +      +
    583B  ASP*     3.1    24.0    +      -       -      +
    585B  ILE*     1.3    77.5    -      -       +      +
    587B  GLN*     1.3    65.4    +      -       -      +
----------------------------------------------------------
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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