Contacts of the helix formed by residues 562 - 585 (chain B) in PDB entry 2BKU


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 THR 562 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53A  HIS*     5.5     6.2    -      -       -      -
    561B  LEU*     1.3    79.5    -      -       -      +
    563B  LEU*     1.3    72.0    +      -       -      +
    564B  GLU*     3.2    17.2    +      -       +      +
    565B  ASP*     3.1    37.5    +      -       -      +
    566B  ALA*     3.0    20.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 563 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29A  ARG      3.9     1.8    -      -       -      +
     30A  HIS*     3.0    29.4    -      -       +      +
     31A  LEU      4.1     5.2    -      -       -      +
     32A  THR*     3.3    14.1    -      -       -      +
     33A  GLY*     3.3    37.2    -      -       -      +
     52A  PHE*     6.4     2.0    -      -       +      -
    157A  PHE*     5.5     2.7    -      -       +      -
    561B  LEU      3.8     0.8    +      -       -      -
    562B  THR*     1.3    76.0    +      -       -      +
    564B  GLU*     1.3    64.7    +      -       +      +
    566B  ALA*     3.0    17.3    +      -       +      +
    567B  GLN*     3.0    25.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 564 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53A  HIS*     5.4     5.5    +      -       -      +
    157A  PHE*     6.4     0.2    -      -       -      -
    158A  GLU*     3.5    31.8    -      -       -      +
    176A  PHE*     3.9     4.0    -      -       -      +
    177A  VAL*     2.9    48.4    +      -       -      +
    562B  THR*     3.2    14.6    +      -       +      +
    563B  LEU*     1.3    83.7    -      -       +      +
    565B  ASP*     1.3    68.4    +      -       -      +
    567B  GLN*     3.3     6.1    +      -       -      +
    568B  SER*     3.2    23.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 565 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    177A  VAL      5.8     0.2    -      -       -      +
    561B  LEU*     3.4    33.4    -      -       +      +
    562B  THR*     3.1    22.6    +      -       +      +
    564B  GLU*     1.3    83.0    -      -       -      +
    566B  ALA*     1.3    62.5    +      -       -      +
    568B  SER*     3.7     7.3    +      -       -      -
    569B  LEU*     3.3    21.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 566 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    558B  GLU*     4.0    33.0    -      -       +      +
    561B  LEU*     4.6     6.4    -      -       -      +
    562B  THR      3.0    12.7    +      -       -      +
    563B  LEU*     3.4    11.9    -      -       +      +
    565B  ASP*     1.3    76.3    -      -       -      +
    567B  GLN*     1.3    68.4    +      -       -      +
    569B  LEU*     3.2     8.5    +      -       -      +
    570B  GLN*     2.8    32.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 567 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29A  ARG*     2.9    45.7    +      -       -      +
     33A  GLY*     3.5    24.5    -      -       -      -
    154A  ASN*     3.1    23.2    +      -       -      +
    157A  PHE*     3.9    23.1    -      -       +      -
    563B  LEU*     3.0    25.6    +      -       +      +
    564B  GLU*     3.3     5.6    +      -       -      +
    566B  ALA*     1.3    82.9    -      -       -      +
    568B  SER*     1.3    60.5    +      -       -      +
    570B  GLN*     3.0    20.5    +      -       -      +
    571B  GLU*     2.9    26.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 568 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    511B  ASP*     6.0     1.0    -      -       -      +
    512B  ASN*     5.6     3.1    +      -       -      +
    517B  ARG*     4.0    18.7    +      -       -      -
    564B  GLU*     3.2    15.6    +      -       -      -
    565B  ASP*     3.8     8.3    -      -       -      -
    567B  GLN*     1.3    78.8    -      -       -      +
    569B  LEU*     1.3    60.3    +      -       -      +
    571B  GLU*     3.5    13.6    +      -       -      +
    572B  LEU*     3.2    19.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 569 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    517B  ARG*     5.7     0.2    -      -       -      +
    553B  THR*     4.0    40.2    -      -       +      +
    556B  VAL*     4.0    15.0    -      -       +      +
    558B  GLU*     5.0    15.9    -      -       +      +
    561B  LEU*     5.2     6.7    -      -       +      -
    565B  ASP      3.3    10.8    +      -       -      +
    566B  ALA*     3.2    11.3    +      -       -      +
    568B  SER*     1.3    77.6    -      -       -      +
    570B  GLN*     1.3    63.8    +      -       +      +
    572B  LEU*     3.0    15.1    +      -       +      +
    573B  GLN*     2.9    37.9    +      -       -      +
    608B  LYS*     5.6     2.7    -      -       -      +
----------------------------------------------------------
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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
----------------------------------------------------------
     29A  ARG*     2.7    38.4    +      -       -      +
     33A  GLY      4.0     7.6    +      -       -      +
    154A  ASN*     5.2     0.7    -      -       -      -
    558B  GLU*     3.5    35.9    +      -       +      +
    566B  ALA*     2.8    18.4    +      -       -      +
    567B  GLN*     3.0    19.6    +      -       -      +
    569B  LEU*     1.3    72.1    -      -       +      +
    571B  GLU*     1.3    65.6    +      -       -      +
    573B  GLN*     4.2     7.4    -      -       -      +
    574B  SER*     2.9    28.2    +      -       -      -
    610B  ASP*     4.0    15.6    +      -       -      +
    613B  PHE*     3.4    35.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 571 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    153A  SER      3.2    22.4    -      -       -      +
    154A  ASN*     3.2    24.9    -      -       +      +
    155A  TYR*     3.8    11.4    -      -       -      -
    156A  ASN      4.5     0.9    +      -       -      -
    512B  ASN*     2.7    39.0    +      -       -      +
    515B  ASN*     4.0     5.0    -      -       -      +
    517B  ARG*     5.5     0.2    +      -       -      -
    518B  ALA*     4.3     5.0    -      -       -      +
    567B  GLN      2.9    18.5    +      -       -      +
    568B  SER*     3.5    12.6    +      -       -      +
    569B  LEU      3.2     0.2    -      -       -      -
    570B  GLN*     1.3    76.8    -      -       -      +
    572B  LEU*     1.3    56.8    +      -       -      +
    574B  SER*     3.3     2.7    +      -       -      -
    575B  ASN*     2.9    45.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 572 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    517B  ARG*     3.8    35.4    -      -       -      +
    521B  PHE*     3.7    32.1    -      -       +      -
    549B  LYS*     4.6    14.1    -      -       -      -
    553B  THR*     3.4    29.2    -      -       +      -
    568B  SER      3.2     9.9    +      -       -      +
    569B  LEU*     3.0    17.8    +      -       +      +
    571B  GLU*     1.3    79.8    -      -       -      +
    573B  GLN*     1.3    57.1    +      -       -      +
    575B  ASN*     3.2    10.5    +      -       -      +
    576B  ILE*     2.9    37.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 573 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    550B  LEU*     4.4     8.5    -      -       +      +
    553B  THR*     3.0    50.3    +      -       -      +
    554B  MET*     3.8     7.5    -      -       -      +
    569B  LEU*     2.9    22.1    +      -       -      +
    570B  GLN*     3.3    11.8    +      -       -      +
    572B  LEU*     1.3    73.2    -      -       -      +
    574B  SER*     1.3    61.0    +      -       -      +
    576B  ILE*     3.4     8.4    +      -       -      +
    577B  LEU*     3.0    32.3    +      -       +      +
    605B  LEU*     4.5     7.6    -      -       +      +
    608B  LYS*     3.3    31.5    +      -       -      +
    613B  PHE*     3.5    23.2    -      -       +      -
    614B  ILE*     4.6     5.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 574 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    152A  LYS*     3.9     7.8    +      -       -      +
    153A  SER*     4.1    23.7    -      -       -      -
    570B  GLN      2.9    14.9    +      -       -      -
    571B  GLU      3.5     7.9    -      -       -      -
    573B  GLN*     1.3    73.4    -      -       -      +
    575B  ASN*     1.3    64.6    +      -       -      +
    577B  LEU*     3.2     3.9    +      -       -      +
    578B  THR*     3.2    25.1    +      -       -      -
    613B  PHE*     3.4    21.2    +      -       -      -
    614B  ILE*     4.4     9.2    -      -       -      +
    617B  ASP*     5.1     7.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 575 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    153A  SER*     4.6     7.4    -      -       -      +
    512B  ASN*     5.0     2.2    -      -       -      +
    517B  ARG*     4.8     2.4    -      -       -      +
    518B  ALA*     3.6    37.8    -      -       -      +
    521B  PHE*     3.8    36.6    -      -       +      +
    571B  GLU*     2.9    36.9    +      -       -      +
    572B  LEU*     3.4    14.2    -      -       -      +
    574B  SER*     1.3    78.9    -      -       -      +
    576B  ILE*     1.3    61.8    +      -       -      +
    578B  THR*     3.4    17.1    +      -       -      -
    579B  VAL      3.6     3.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 576 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    521B  PHE*     3.7    26.2    -      -       +      -
    546B  VAL*     3.5    29.8    -      -       +      +
    549B  LYS*     3.6    30.5    -      -       +      +
    550B  LEU*     3.7    33.2    -      -       +      +
    553B  THR*     4.1    12.6    -      -       +      -
    572B  LEU*     2.9    24.7    +      -       +      +
    573B  GLN*     3.8     7.6    -      -       -      +
    574B  SER      3.3     0.2    -      -       -      -
    575B  ASN*     1.3    74.2    -      -       -      +
    577B  LEU*     1.3    59.7    +      -       -      +
    579B  VAL*     3.1     6.2    +      -       -      +
    580B  LEU*     3.0    26.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 577 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    550B  LEU*     5.0     4.7    -      -       +      -
    573B  GLN      3.0    17.4    +      -       -      +
    574B  SER*     3.2     7.1    +      -       -      +
    576B  ILE*     1.3    73.9    -      -       -      +
    578B  THR*     1.3    66.2    +      -       -      +
    580B  LEU*     4.2     8.7    -      -       +      -
    581B  ALA*     2.8    28.6    +      -       +      +
    602B  PHE*     4.3    15.9    -      -       +      -
    605B  LEU*     3.8    16.6    -      -       +      -
    614B  ILE*     3.5    26.9    -      -       +      -
    617B  ASP*     4.0    36.6    -      -       +      +
    618B  VAL*     3.7    16.8    -      -       +      +
    621B  ALA*     4.3    15.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 578 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    521B  PHE      6.2     0.2    -      -       -      -
    522B  SER*     5.7     4.3    -      -       -      +
    525B  THR*     3.3    28.0    -      -       +      +
    574B  SER      3.2    12.9    +      -       -      -
    575B  ASN*     3.6    11.9    -      -       -      -
    577B  LEU*     1.3    79.1    -      -       -      +
    579B  VAL*     1.3    61.3    +      -       -      +
    581B  ALA*     3.5     4.8    +      -       -      +
    582B  ALA*     3.2    20.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 579 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    521B  PHE*     3.3    44.6    -      -       +      +
    524B  LEU*     4.0     9.2    -      -       +      -
    525B  THR*     3.3    13.7    -      -       -      +
    528B  VAL*     4.7     5.2    -      -       +      -
    542B  ILE*     3.5    31.4    -      -       +      -
    546B  VAL*     3.7    18.8    -      -       +      -
    575B  ASN      3.6     2.9    +      -       -      +
    576B  ILE      3.1     8.3    +      -       -      +
    578B  THR*     1.3    76.9    -      -       -      +
    580B  LEU*     1.3    58.5    +      -       -      +
    582B  ALA*     3.2     7.1    +      -       -      +
    583B  VAL*     3.0    30.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 580 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    543B  SER*     4.6     5.4    -      -       -      +
    546B  VAL*     3.3    28.9    -      -       +      -
    547B  MET*     4.0    12.6    -      -       +      +
    550B  LEU*     3.6    31.2    -      -       +      -
    576B  ILE*     3.0    18.4    +      -       +      +
    577B  LEU*     3.3    11.2    +      -       +      +
    579B  VAL*     1.3    77.8    -      -       -      +
    581B  ALA*     1.3    61.5    +      -       -      +
    583B  VAL*     3.6     7.3    +      -       +      +
    584B  ILE*     3.2    30.6    +      -       +      +
    591B  VAL*     5.5     1.8    -      -       +      -
    598B  LEU*     3.6    34.1    -      -       +      -
    602B  PHE*     3.8    15.5    -      -       +      -
    621B  ALA*     5.6     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 581 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    577B  LEU*     2.8    20.9    +      -       +      +
    578B  THR*     3.7     4.9    -      -       -      +
    580B  LEU*     1.3    76.5    -      -       -      +
    582B  ALA*     1.3    62.6    +      -       -      +
    584B  ILE*     3.3    10.8    +      -       -      +
    585B  ARG*     3.1    41.7    +      -       -      +
    617B  ASP*     5.4     2.7    -      -       +      +
    620B  TYR*     6.2     1.1    -      -       +      -
    621B  ALA*     4.6    16.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 582 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    525B  THR*     3.9    21.1    -      -       +      +
    528B  VAL*     3.5    21.8    -      -       +      +
    529B  GLU*     4.2    19.1    -      -       -      +
    578B  THR      3.2    10.7    +      -       -      +
    579B  VAL      3.2     8.1    +      -       -      +
    581B  ALA*     1.3    79.8    -      -       -      +
    583B  VAL*     1.3    61.6    +      -       -      +
    585B  ARG*     3.2    26.1    +      -       -      +
    586B  LYS*     3.5     2.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 583 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    528B  VAL*     3.7    27.8    -      -       +      -
    539B  SER*     4.9     4.7    -      -       -      +
    542B  ILE*     4.4     3.1    -      -       +      -
    543B  SER*     3.8    32.8    -      -       -      +
    579B  VAL*     3.0    27.7    +      -       +      +
    580B  LEU*     3.7    10.5    -      -       +      +
    581B  ALA      3.3     0.2    -      -       -      -
    582B  ALA*     1.3    75.6    -      -       -      +
    584B  ILE*     1.3    61.0    +      -       +      +
    587B  SER*     3.0    46.0    +      -       -      +
    590B  SER*     4.1     5.2    -      -       -      +
    591B  VAL*     4.1    13.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 584 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    580B  LEU*     3.2    18.6    +      -       +      +
    581B  ALA*     3.3     7.7    +      -       -      +
    583B  VAL*     1.3    77.9    -      -       +      +
    585B  ARG*     1.3    57.6    +      -       -      +
    586B  LYS      3.3     4.3    +      -       -      -
    588B  PRO*     3.7    22.9    -      -       +      +
    591B  VAL*     4.1     7.9    -      -       +      -
    598B  LEU*     3.6    33.7    -      -       +      -
    602B  PHE*     4.1    20.4    -      -       +      -
    621B  ALA*     4.0    14.4    -      -       +      +
    624B  ALA*     3.7    12.3    -      -       +      +
    625B  LEU*     3.3    42.4    -      -       +      +
    628B  SER*     4.5     2.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 585 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    529B  GLU*     5.6     2.2    -      -       -      +
    581B  ALA*     3.1    33.4    +      -       -      +
    582B  ALA*     3.2     8.7    +      -       -      +
    583B  VAL      3.2     0.8    -      -       -      -
    584B  ILE*     1.3    73.9    -      -       -      +
    586B  LYS*     1.3    67.5    +      -       -      +
    620B  TYR*     3.5    41.4    +      -       -      +
    621B  ALA*     5.4     0.6    -      -       -      +
    623B  SER*     5.9     0.2    -      -       -      -
    624B  ALA*     3.9    24.4    -      -       +      +
----------------------------------------------------------
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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