Contacts of the helix formed by residues 84 - 110 (chain B) in PDB entry 1ZMC


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 ASN 84 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75A  GLY*     2.8    22.8    +      -       -      -
     77A  GLU*     2.5    38.9    +      -       -      +
     82B  ARG      3.6     2.0    +      -       -      -
     83B  LEU*     1.3    71.4    -      -       -      +
     85B  LEU*     1.3    65.7    +      -       -      +
     86B  ASP*     3.0    24.0    +      -       -      +
     87B  LYS*     3.1    34.5    +      -       -      +
     88B  MET*     3.1     9.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 85 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56B  LEU*     6.2     0.4    -      -       +      -
     83B  LEU*     3.1    22.2    +      -       +      +
     84B  ASN*     1.3    72.6    -      -       -      +
     86B  ASP*     1.3    63.0    +      -       -      +
     88B  MET*     3.3    10.1    +      -       +      +
     89B  MET*     3.0    38.2    +      -       +      +
    174B  LEU      3.8    13.0    -      -       -      +
    175B  LYS      3.5    24.7    -      -       -      +
    176B  LYS*     3.9     1.3    -      -       -      -
    177B  VAL*     3.8    26.2    -      -       +      +
    197B  TRP*     4.0    22.7    -      -       +      -
    200B  LEU*     4.2    14.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 86 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84B  ASN*     3.0    13.3    +      -       -      +
     85B  LEU*     1.3    79.4    -      -       -      +
     87B  LYS*     1.3    57.3    +      -       -      +
     89B  MET*     3.5     6.5    +      -       -      +
     90B  GLU*     3.1    23.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 87 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72A  ALA      3.1    28.7    -      -       -      +
     73A  SER*     4.0    12.7    -      -       -      +
     74A  ARG      4.2     1.8    -      -       -      -
     75A  GLY*     3.9     5.4    -      -       -      +
     77A  GLU*     4.6     4.0    -      -       -      +
     84B  ASN*     3.1    32.2    +      -       -      +
     86B  ASP*     1.3    77.5    -      -       -      +
     88B  MET*     1.3    66.8    +      -       -      +
     89B  MET      3.2     0.4    -      -       -      -
     90B  GLU*     3.0    27.6    +      -       -      +
     91B  GLN*     3.0    23.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 88 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74A  ARG*     3.0    32.1    +      -       -      +
     76A  ILE*     4.2     6.1    -      -       +      -
     56B  LEU*     4.2    14.9    -      -       +      +
     59B  ASN*     3.6    52.7    +      -       +      +
     60B  SER*     4.4     2.5    -      -       -      -
     63B  TYR*     4.0    11.4    -      -       +      -
     83B  LEU*     3.3    31.6    -      -       +      -
     84B  ASN      3.1    10.1    +      -       -      +
     85B  LEU*     3.7    14.4    -      -       +      +
     87B  LYS*     1.3    76.5    -      -       -      +
     89B  MET*     1.3    62.6    +      -       -      +
     91B  GLN*     3.6     0.9    +      -       -      +
     92B  LYS*     3.3    17.0    +      -       -      +
    200B  LEU*     4.0    22.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 89 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56B  LEU*     4.1    15.7    -      -       +      -
     85B  LEU*     3.0    29.6    +      -       +      +
     86B  ASP*     3.8     6.5    -      -       -      +
     87B  LYS      3.2     0.2    -      -       -      -
     88B  MET*     1.3    73.7    -      -       -      +
     90B  GLU*     1.3    55.1    +      -       -      +
     92B  LYS*     3.1    22.0    -      -       -      +
     93B  SER*     2.7    39.0    +      -       -      +
    172B  LEU      3.3    26.5    -      -       -      +
    173B  SER*     4.2     3.4    -      -       -      -
    174B  LEU      3.6    26.9    -      -       -      +
    197B  TRP*     3.6    26.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 90 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73A  SER      5.8     0.4    -      -       -      +
     86B  ASP      3.1    14.1    +      -       -      +
     87B  LYS*     3.0    40.2    +      -       +      +
     89B  MET*     1.3    75.8    -      -       -      +
     91B  GLN*     1.3    56.0    +      -       -      +
     93B  SER*     2.9     9.9    +      -       -      -
     94B  THR*     2.8    44.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 91 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73A  SER*     3.6    25.6    -      -       -      +
     74A  ARG*     4.1    18.5    -      -       +      +
    395A  LYS      4.6     2.2    +      -       -      -
    396A  THR      3.4    20.7    +      -       -      +
    398A  ALA*     3.4    30.9    -      -       +      +
     55B  ALA*     3.9     3.3    -      -       -      +
     59B  ASN*     3.0    26.2    +      -       -      +
     87B  LYS      3.0     7.7    +      -       -      +
     88B  MET      3.7     9.0    -      -       -      +
     89B  MET      3.3     0.2    -      -       -      -
     90B  GLU*     1.3    75.8    -      -       -      +
     92B  LYS*     1.3    68.3    +      -       -      +
     94B  THR*     3.5     7.9    +      -       -      -
     95B  ALA*     3.2    18.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 92 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52B  PRO*     3.8    39.1    -      -       +      +
     55B  ALA*     4.0     9.4    -      -       +      +
     56B  LEU*     3.9    21.3    -      -       +      -
     59B  ASN*     5.2     0.2    -      -       -      +
     88B  MET      3.3     9.9    +      -       -      +
     89B  MET*     3.1    31.0    +      -       -      +
     91B  GLN*     1.3    88.4    +      -       -      +
     93B  SER*     1.3    75.3    +      -       -      +
     95B  ALA*     3.1     3.8    +      -       -      +
     96B  VAL*     3.1    24.4    +      -       +      +
    172B  LEU*     2.7    31.3    +      -       -      +
    173B  SER*     2.9    19.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 93 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     89B  MET*     2.7    18.9    +      -       -      +
     90B  GLU*     3.3    11.8    -      -       -      -
     92B  LYS*     1.3    84.6    +      -       -      +
     94B  THR*     1.3    57.0    +      -       -      +
     96B  VAL*     3.4     7.9    +      -       -      +
     97B  LYS*     2.9    30.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 94 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    395A  LYS*     6.2     2.0    -      -       -      -
     90B  GLU*     2.8    30.6    +      -       -      +
     91B  GLN*     3.6    11.8    -      -       -      -
     93B  SER*     1.3    69.8    -      -       -      +
     95B  ALA*     1.3    70.0    +      -       -      +
     97B  LYS*     2.9     8.7    +      -       +      +
     98B  ALA*     2.8    27.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 95 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    395A  LYS*     4.1    13.2    -      -       +      +
    396A  THR*     3.9    36.3    -      -       +      +
     51B  ILE*     4.8     5.4    -      -       +      -
     55B  ALA*     5.1     0.4    -      -       +      -
     91B  GLN*     3.2    10.6    +      -       -      +
     92B  LYS*     3.1    11.2    +      -       -      +
     94B  THR*     1.3    80.0    -      -       -      +
     96B  VAL*     1.3    63.7    +      -       -      +
     98B  ALA*     3.4     6.0    +      -       -      +
     99B  LEU*     3.0    30.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 96 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46B  LEU*     3.3    31.8    -      -       -      +
     47B  ASN*     4.1    14.1    -      -       +      +
     51B  ILE*     4.3     6.7    -      -       +      -
     52B  PRO*     4.2    26.5    -      -       +      -
     92B  LYS*     3.1    17.6    +      -       +      +
     93B  SER*     3.6     8.3    -      -       -      +
     94B  THR      3.1     0.8    -      -       -      -
     95B  ALA*     1.3    77.3    -      -       -      +
     97B  LYS*     1.3    64.6    +      -       -      +
     99B  LEU*     3.3     1.4    +      -       -      +
    100B  THR*     2.9    39.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 97 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93B  SER      2.9    17.6    +      -       -      +
     94B  THR*     3.5     6.7    -      -       +      +
     96B  VAL*     1.3    77.1    -      -       -      +
     98B  ALA*     1.3    62.9    +      -       -      +
    100B  THR*     2.6    25.2    +      -       -      +
    101B  GLY*     3.0     8.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 98 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    395A  LYS*     3.7    28.9    -      -       -      -
     94B  THR*     2.8    23.9    +      -       +      +
     95B  ALA      3.6     4.3    -      -       -      +
     97B  LYS*     1.3    74.2    -      -       -      +
     99B  LEU*     1.3    58.0    +      -       -      +
    101B  GLY*     3.1     3.9    +      -       -      -
    102B  GLY*     2.9    24.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 99 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    389A  ALA      5.4     4.7    -      -       -      +
    390A  ALA*     5.4     5.2    -      -       -      +
    391A  ASN      5.3     0.9    -      -       -      +
    392A  SER*     3.7    36.3    -      -       -      +
    395A  LYS*     3.8    29.4    -      -       +      -
    396A  THR*     4.2     2.0    -      -       -      +
     46B  LEU*     3.4    21.7    -      -       +      +
     51B  ILE*     3.9    28.0    -      -       +      -
     95B  ALA      3.0    16.3    +      -       -      +
     98B  ALA*     1.3    77.1    -      -       -      +
    100B  THR*     1.3    61.2    +      -       -      +
    102B  GLY*     3.3    10.6    +      -       -      +
    103B  ILE*     3.4    19.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 100 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40B  THR*     4.4    18.7    -      -       +      +
     41B  LEU*     3.7    16.2    +      -       -      +
     46B  LEU*     3.7    19.7    -      -       +      -
     47B  ASN*     3.4    24.9    -      -       -      +
     96B  VAL*     2.9    29.7    +      -       +      +
     97B  LYS*     2.6    26.4    +      -       -      +
     99B  LEU*     1.3    73.6    -      -       -      +
    101B  GLY*     1.3    65.6    +      -       -      +
    103B  ILE*     3.3    13.8    +      -       -      +
    104B  ALA*     3.4     9.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 101 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97B  LYS      3.0    13.8    +      -       -      -
     98B  ALA      3.6     3.6    -      -       -      -
    100B  THR*     1.3    75.7    +      -       -      +
    102B  GLY*     1.3    60.3    +      -       -      +
    104B  ALA*     2.9    12.8    +      -       -      +
    105B  HIS*     2.9    27.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 102 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98B  ALA      2.9    12.7    +      -       -      -
     99B  LEU*     3.3     8.0    +      -       -      -
    100B  THR      3.1     0.6    -      -       -      -
    101B  GLY*     1.3    79.0    -      -       -      +
    103B  ILE*     1.3    56.9    +      -       -      +
    105B  HIS*     3.5     7.0    +      -       -      +
    106B  LEU*     3.0    36.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 103 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19B  TYR*     3.7    61.7    -      -       +      +
     41B  LEU*     3.8    23.1    -      -       +      -
     42B  GLY*     3.8    13.2    -      -       -      +
     46B  LEU*     3.7    25.6    -      -       +      -
     99B  LEU      3.4     9.6    +      -       -      +
    100B  THR      3.3     8.2    +      -       -      +
    101B  GLY      3.1     0.8    -      -       -      -
    102B  GLY*     1.3    75.2    -      -       -      +
    104B  ALA*     1.3    59.7    +      -       -      +
    106B  LEU*     3.8     7.4    -      -       +      -
    107B  PHE*     3.0    33.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 104 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41B  LEU*     4.1    14.3    -      -       +      +
    100B  THR      3.4     5.1    +      -       -      +
    101B  GLY*     2.9    19.2    +      -       -      +
    103B  ILE*     1.3    78.3    -      -       -      +
    105B  HIS*     1.3    57.9    +      -       -      +
    107B  PHE*     3.5     3.0    +      -       -      +
    108B  LYS*     3.0    31.8    +      -       -      +
    114B  HIS*     6.2     1.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 105 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101B  GLY      2.9    13.6    +      -       -      +
    102B  GLY*     3.8     7.6    -      -       -      +
    104B  ALA*     1.3    76.6    -      -       -      +
    106B  LEU*     1.3    60.3    +      -       +      +
    108B  LYS*     3.1    16.2    +      -       +      +
    109B  GLN*     2.7    58.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 106 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    472A  ILE      3.8     9.4    -      -       -      +
    473A  ASN*     3.6    55.4    -      -       +      +
    474A  PHE*     3.7    12.3    -      -       -      +
     19B  TYR*     4.5     3.1    -      -       +      -
     23B  ILE*     4.0    16.2    -      -       +      -
    102B  GLY      3.0    29.8    +      -       -      +
    103B  ILE*     4.0     9.0    -      -       +      +
    105B  HIS*     1.3    78.7    -      -       +      +
    107B  PHE*     1.3    66.8    +      -       -      +
    109B  GLN*     3.2    16.1    +      -       -      +
    110B  ASN*     2.8    34.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 107 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14B  SER*     4.8     0.7    -      -       -      -
     19B  TYR*     3.4    45.3    -      -       +      -
     22B  ALA*     3.8     8.5    -      -       +      -
     23B  ILE*     3.8    13.2    -      -       +      -
     34B  CYS*     3.5    42.6    -      -       +      -
     41B  LEU*     3.9    30.3    -      -       +      -
    103B  ILE*     3.0    21.5    +      -       +      +
    104B  ALA*     3.8     4.9    -      -       -      +
    106B  LEU*     1.3    75.2    -      -       -      +
    108B  LYS*     1.3    60.6    +      -       -      +
    110B  ASN      3.4     0.2    +      -       -      -
    111B  LYS      3.1     3.6    +      -       -      -
    112B  VAL*     2.7    55.0    +      -       +      +
    114B  HIS*     4.4    15.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 108 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    104B  ALA*     3.0    16.6    +      -       -      +
    105B  HIS*     3.2    20.6    -      -       +      +
    107B  PHE*     1.3    76.5    -      -       -      +
    109B  GLN*     1.3    54.7    +      -       -      +
    111B  LYS*     2.8    29.6    +      -       -      +
    112B  VAL      5.0     2.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 109 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    474A  PHE*     3.3    33.7    +      -       -      +
     27B  GLN*     6.0     0.4    -      -       -      +
    105B  HIS*     2.7    46.0    +      -       +      +
    106B  LEU*     3.2    13.3    +      -       -      +
    108B  LYS*     1.3    74.0    -      -       -      +
    110B  ASN*     1.3    72.1    +      -       -      +
    111B  LYS*     3.2    12.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 110 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    470A  LYS*     4.9     5.9    +      -       -      +
    472A  ILE      4.9     1.0    +      -       -      -
     23B  ILE*     3.7    26.7    -      -       +      +
     26B  ALA*     3.3    23.8    -      -       +      +
     27B  GLN*     3.5    25.2    +      -       +      +
    106B  LEU*     2.8    37.4    +      -       -      +
    109B  GLN*     1.3    94.7    +      -       -      +
    111B  LYS*     1.3    72.0    +      -       -      +
    112B  VAL*     3.2    15.1    +      -       +      -
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il