Contacts of the helix formed by residues 196 - 221 (chain B) in PDB entry 6VDK


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 ALA 196 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81B  SER      4.9     0.3    -      -       -      +
     82B  GLY      5.3     7.2    -      -       -      +
     83B  TYR*     5.3     5.4    -      -       +      +
    183B  HIS*     3.4    24.5    -      -       +      +
    184B  ASN*     3.2    24.0    +      -       -      +
    187B  ARG      5.3     0.4    -      -       -      +
    195B  SER*     1.3    89.1    +      -       -      +
    197B  GLY*     1.3    56.2    +      -       -      +
    198B  GLU      3.4     2.0    -      -       -      -
    199B  ARG*     3.4    24.3    +      -       -      +
    200B  ILE*     3.4    20.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 197 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    184B  ASN*     3.9    11.8    +      -       -      -
    185B  PHE*     5.8     3.0    -      -       -      -
    195B  SER*     3.8     4.0    +      -       -      -
    196B  ALA*     1.3    77.6    -      -       -      +
    198B  GLU*     1.3    61.4    +      -       -      +
    199B  ARG      3.3     1.3    -      -       -      -
    200B  ILE*     3.2    18.7    -      -       -      +
    201B  VAL*     2.9    35.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 198 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208A  ILE*     4.1    34.2    -      -       +      +
    188B  LYS*     6.0     0.2    -      -       -      -
    194B  TYR*     3.1    38.0    -      -       +      +
    195B  SER*     3.8    29.3    +      -       -      +
    196B  ALA      3.4     0.8    -      -       -      -
    197B  GLY*     1.3    79.3    -      -       -      +
    199B  ARG*     1.3    57.5    +      -       -      +
    201B  VAL*     3.3    10.3    -      -       -      +
    202B  ASP*     3.0    37.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 199 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81B  SER*     3.3    31.8    +      -       -      +
     82B  GLY      5.8     1.6    +      -       -      -
    187B  ARG      4.9     1.4    +      -       -      -
    188B  LYS      5.1     0.8    -      -       -      -
    189B  GLY      3.6    18.4    +      -       -      +
    190B  GLY*     4.6     5.3    -      -       -      +
    194B  TYR*     2.7    53.9    +      -       +      +
    195B  SER      3.3    18.8    +      -       -      -
    196B  ALA*     3.4    28.0    +      -       -      +
    198B  GLU*     1.3    79.5    -      -       -      +
    200B  ILE*     1.3    55.1    +      -       -      +
    202B  ASP*     3.3    11.0    +      -       -      +
    203B  ILE*     2.9    26.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 200 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78B  HIS*     4.8     6.5    -      -       +      +
     81B  SER*     3.3    26.9    -      -       -      +
     83B  TYR*     3.7    50.9    -      -       +      +
    108B  TRP*     4.6    17.9    -      -       +      +
    184B  ASN*     5.6     0.4    -      -       -      +
    196B  ALA      3.4    17.0    -      -       -      +
    197B  GLY*     3.2    22.7    -      -       -      +
    199B  ARG*     1.3    74.3    -      -       -      +
    201B  VAL*     1.3    67.4    +      -       +      +
    203B  ILE*     3.2     9.5    -      -       +      +
    204B  ILE*     2.9    36.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 201 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108A  TRP*     5.5    12.1    -      -       +      -
    109A  PRO*     6.6     0.2    -      -       +      -
    201A  VAL*     4.2    17.2    -      -       +      +
    204A  ILE*     4.9    23.8    -      -       +      +
    205A  ALA*     4.9    15.0    -      -       +      +
    208A  ILE*     5.8     4.5    -      -       +      -
    108B  TRP*     6.3     0.9    -      -       -      +
    197B  GLY*     2.9    21.6    +      -       -      +
    198B  GLU*     3.3    20.4    -      -       -      +
    200B  ILE*     1.3    81.5    -      -       +      +
    202B  ASP*     1.3    62.3    +      -       -      +
    204B  ILE*     4.1     9.6    -      -       +      +
    205B  ALA*     2.9    31.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 202 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    205A  ALA*     5.4     6.2    -      -       -      +
    209A  GLN*     5.2    12.1    -      -       -      +
    194B  TYR*     5.8     6.9    -      -       -      -
    198B  GLU*     3.0    27.8    +      -       -      +
    199B  ARG*     3.4    12.8    -      -       -      +
    201B  VAL*     1.3    79.9    -      -       -      +
    203B  ILE*     1.3    57.7    +      -       -      +
    205B  ALA*     3.8     4.1    -      -       -      +
    206B  THR*     2.9    37.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 203 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57B  SER      5.2     1.6    -      -       -      +
     58B  PRO*     4.4    13.2    -      -       +      +
     78B  HIS*     3.8    14.1    -      -       +      +
     80B  ALA*     3.5    37.9    -      -       +      +
     81B  SER*     3.7    20.4    -      -       -      -
    199B  ARG      2.9    11.3    +      -       -      +
    200B  ILE      3.2    14.1    -      -       -      +
    202B  ASP*     1.3    76.3    -      -       -      +
    204B  ILE*     1.3    61.6    +      -       +      +
    206B  THR*     2.9    20.2    +      -       -      +
    207B  ASP*     2.9    18.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 204 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201A  VAL*     3.7    26.9    -      -       +      -
     58B  PRO*     5.3     5.4    -      -       +      -
     78B  HIS*     4.9    12.8    -      -       +      +
    108B  TRP*     3.7    32.3    -      -       +      +
    109B  PRO*     5.2    18.4    -      -       +      -
    200B  ILE*     2.9    31.0    +      -       +      +
    201B  VAL*     4.1     9.0    -      -       +      +
    203B  ILE*     1.3    81.5    -      -       +      +
    205B  ALA*     1.3    59.0    +      -       -      +
    207B  ASP*     3.3     7.6    +      -       -      +
    208B  ILE*     2.9    43.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 205 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201A  VAL*     3.8    20.4    -      -       +      +
    202A  ASP*     6.3     0.2    -      -       -      -
    205A  ALA*     4.4    13.5    -      -       +      -
    201B  VAL      2.9    20.0    +      -       -      +
    202B  ASP*     3.8     5.2    -      -       -      +
    204B  ILE*     1.3    75.7    -      -       -      +
    206B  THR*     1.3    59.5    +      -       +      +
    208B  ILE*     3.3     5.6    +      -       -      +
    209B  GLN*     2.9    44.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 206 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20B  ARG*     3.7    21.4    +      -       -      +
    202B  ASP*     2.9    20.3    +      -       +      +
    203B  ILE*     2.9    24.9    +      -       -      +
    205B  ALA*     1.3    77.1    -      -       +      +
    207B  ASP*     1.3    56.2    +      -       -      +
    209B  GLN*     3.3    13.6    +      -       -      +
    210B  THR*     2.9    32.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 207 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56B  CYS      4.9     2.6    -      -       -      +
     58B  PRO*     3.5    38.2    -      -       +      +
    109B  PRO*     5.4     6.9    -      -       -      +
    203B  ILE      2.9    19.6    +      -       -      +
    204B  ILE*     3.3     7.4    +      -       -      +
    206B  THR*     1.3    76.8    +      -       -      +
    208B  ILE*     1.3    65.3    +      -       -      +
    210B  THR*     3.3    10.6    -      -       -      +
    211B  LYS*     2.9    50.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 208 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194A  TYR*     6.5     0.4    -      -       +      -
    198A  GLU*     4.4    31.4    -      -       +      +
    201A  VAL*     5.4     4.3    -      -       +      -
    109B  PRO*     5.8     6.5    -      -       +      -
    204B  ILE*     2.9    31.1    +      -       +      +
    205B  ALA*     3.3     7.8    +      -       -      +
    207B  ASP*     1.3    79.9    -      -       -      +
    209B  GLN*     1.3    60.1    +      -       +      +
    211B  LYS*     3.4    22.1    -      -       +      +
    212B  GLU*     2.9    46.9    +      -       +      +
    271J  TYR*     5.2     4.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 209 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19B  TRP*     5.9     0.7    -      -       -      -
     20B  ARG*     4.2    19.3    +      -       -      +
    205B  ALA*     2.9    31.7    +      -       -      +
    206B  THR*     3.7    11.1    -      -       -      +
    208B  ILE*     1.3    78.2    -      -       +      +
    210B  THR*     1.3    58.3    +      -       -      +
    212B  GLU*     3.4     3.1    +      -       -      +
    213B  LEU*     2.9    36.2    +      -       +      +
    269J  ARG*     5.8     7.3    +      -       -      +
    270J  ASP      5.8     2.0    +      -       -      -
    271J  TYR*     4.5    19.0    -      -       +      +
    274J  GLN*     4.7    15.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 210 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19B  TRP*     4.2    17.8    +      -       -      -
     20B  ARG*     4.2    12.7    -      -       -      +
     34B  LYS*     5.8     2.4    +      -       -      +
    206B  THR      2.9    22.0    +      -       -      +
    207B  ASP*     3.3    15.3    -      -       -      +
    209B  GLN*     1.3    75.9    -      -       -      +
    211B  LYS*     1.3    62.7    +      -       +      +
    213B  LEU*     3.3     6.3    +      -       -      +
    214B  GLN*     2.9    27.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 211 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    111B  LYS*     5.3    15.3    -      -       -      +
    207B  ASP*     2.9    43.4    +      -       -      +
    208B  ILE*     3.4    23.8    -      -       +      +
    210B  THR*     1.3    77.9    -      -       +      +
    212B  GLU*     1.3    61.2    +      -       +      +
    214B  GLN*     3.5     9.1    +      -       +      +
    215B  LYS*     2.8    34.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 212 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194A  TYR*     4.2    20.2    +      -       -      -
    208B  ILE*     2.9    28.1    +      -       +      +
    209B  GLN      4.0     3.1    -      -       -      +
    211B  LYS*     1.3    78.0    -      -       +      +
    213B  LEU*     1.3    62.1    +      -       +      +
    215B  LYS*     3.4    20.1    +      -       +      +
    216B  GLN*     2.8    27.1    +      -       +      +
    270J  ASP*     4.8     0.3    -      -       -      +
    271J  TYR*     3.2    34.9    -      -       +      +
    272J  GLY*     4.3     8.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 213 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19B  TRP*     5.2    10.3    -      -       +      -
     30B  PRO*     4.3    19.3    -      -       +      -
     31B  VAL*     4.8    11.2    -      -       +      -
     34B  LYS*     6.4     2.7    -      -       +      -
    209B  GLN*     2.9    26.8    +      -       +      +
    210B  THR*     3.7     7.4    -      -       -      +
    211B  LYS      3.3     0.2    -      -       -      -
    212B  GLU*     1.3    77.1    -      -       -      +
    214B  GLN*     1.3    58.6    +      -       -      +
    216B  GLN*     3.1    29.0    +      -       -      +
    217B  ILE*     2.9    30.4    +      -       -      +
    271J  TYR      4.0     6.1    -      -       -      +
    274J  GLN*     3.7    46.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 214 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210B  THR      2.9    16.7    +      -       -      +
    211B  LYS*     3.6     9.9    -      -       +      +
    213B  LEU*     1.3    75.6    -      -       -      +
    215B  LYS*     1.3    57.9    +      -       -      +
    217B  ILE*     3.2    15.0    +      -       -      +
    218B  THR*     2.9    37.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 215 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    188A  LYS*     4.4    11.3    -      -       -      +
    211B  LYS*     2.8    23.9    +      -       -      +
    212B  GLU*     3.4    22.5    -      -       +      +
    213B  LEU      3.2     0.2    -      -       -      -
    214B  GLN*     1.3    76.9    -      -       -      +
    216B  GLN*     1.3    62.1    +      -       -      +
    218B  THR*     3.3    20.6    -      -       +      +
    219B  LYS*     4.4     1.4    -      -       -      +
     24C  SER*     3.4    37.6    +      -       -      +
     25C  ASP*     2.6    38.1    +      -       -      +
     27C  ASN*     3.8    12.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 216 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31B  VAL*     5.2    10.3    -      -       +      +
    212B  GLU      2.8    14.2    +      -       -      +
    213B  LEU*     3.1    34.1    +      -       +      +
    215B  LYS*     1.3    77.5    -      -       -      +
    217B  ILE*     1.3    63.2    +      -       +      +
    219B  LYS*     2.5    44.7    +      -       -      +
    220B  ILE*     3.3     7.1    -      -       +      +
    271J  TYR      5.2     1.9    -      -       -      +
    272J  GLY*     5.5     4.0    -      -       -      -
    274J  GLN*     4.8     7.4    +      -       -      +
    275J  MET*     4.6    25.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 217 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31B  VAL*     4.3    28.0    -      -       +      -
    213B  LEU      2.9    15.7    +      -       -      +
    214B  GLN*     3.3    30.1    -      -       -      +
    216B  GLN*     1.3    74.6    -      -       +      +
    218B  THR*     1.3    65.0    +      -       -      +
    219B  LYS      3.2     3.4    -      -       -      -
    220B  ILE*     3.1    34.4    +      -       +      -
    221B  GLN*     3.4    14.0    +      -       +      +
    241B  LEU      5.1     4.9    -      -       -      +
    242B  LEU*     5.2     4.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 218 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    214B  GLN*     2.9    26.7    +      -       +      +
    215B  LYS*     3.3    26.0    -      -       +      +
    217B  ILE*     1.3    77.7    -      -       -      +
    219B  LYS*     1.3    56.2    +      -       -      +
    221B  GLN*     2.9    34.1    +      -       -      +
    222B  ASN*     3.4     1.6    -      -       -      +
     27C  ASN*     3.4    16.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 219 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215B  LYS      4.4     2.5    -      -       -      +
    216B  GLN*     2.5    45.7    +      -       -      +
    218B  THR*     1.3    78.4    -      -       -      +
    220B  ILE*     1.3    81.9    +      -       +      +
    221B  GLN      3.3     2.2    -      -       -      -
    222B  ASN*     3.1    18.7    +      -       -      +
    223B  PHE*     3.2    29.2    -      -       +      -
     27C  ASN*     3.4    38.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 220 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216B  GLN*     3.3    19.7    -      -       +      +
    217B  ILE*     3.1    23.5    +      -       +      +
    219B  LYS*     1.3   100.1    -      -       +      +
    221B  GLN*     1.3    59.8    +      -       -      +
    223B  PHE*     2.8    42.2    +      -       +      +
    241B  LEU*     3.4    51.1    +      -       +      +
    242B  LEU      5.2     2.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 221 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217B  ILE*     3.4    10.3    +      -       +      +
    218B  THR*     2.9    36.4    +      -       -      +
    220B  ILE*     1.3    77.4    -      -       -      +
    222B  ASN*     1.3    86.9    +      -       -      +
    223B  PHE      4.1     3.4    -      -       -      +
    224B  ARG*     5.7     1.9    +      -       -      -
    240B  LYS*     6.0     2.1    -      -       -      +
----------------------------------------------------------
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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