Contacts of the helix formed by residues 247 - 275 (chain B) in PDB entry 3AXJ


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 247 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    244B  CYS*     3.6    34.1    +      -       +      +
    245B  GLN      2.8     8.7    +      -       -      +
    246B  ARG*     1.3    68.5    -      -       -      +
    248B  ARG*     1.3    58.1    +      -       -      +
    249B  GLU*     3.5     2.5    -      -       -      -
    250B  LEU*     3.4    17.1    +      -       +      +
    251B  TRP*     3.0    28.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 248 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246B  ARG      2.9    12.6    +      -       -      +
    247B  ALA*     1.3    69.4    -      -       -      +
    249B  GLU*     1.3    65.3    +      -       -      +
    251B  TRP*     3.4     9.7    +      -       +      +
    252B  ARG*     3.2    53.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 249 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122B  GLN*     4.5     8.1    +      -       -      +
    200B  LEU*     3.7    31.9    -      -       +      +
    247B  ALA      3.5     0.2    -      -       -      -
    248B  ARG*     1.3    76.7    -      -       -      +
    250B  LEU*     1.3    64.1    +      -       -      +
    252B  ARG*     3.3    26.6    +      -       -      +
    253B  LYS*     3.1    34.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 250 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13A  TYR*     4.3    11.4    -      -       +      +
    199B  ILE*     4.0    21.8    -      -       +      +
    200B  LEU*     4.1    17.1    -      -       +      +
    239B  TYR*     4.0    17.3    -      -       +      -
    242B  LEU*     4.1    17.9    -      -       +      -
    244B  CYS*     3.9    32.1    -      -       +      -
    247B  ALA*     3.4    16.6    +      -       +      +
    248B  ARG      3.3     0.2    -      -       -      -
    249B  GLU*     1.3    79.3    -      -       -      +
    251B  TRP*     1.3    62.5    +      -       -      +
    253B  LYS*     3.1     9.9    +      -       +      +
    254B  ILE*     3.0    40.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with TRP 251 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    247B  ALA      3.0    17.0    +      -       -      +
    248B  ARG*     3.8    11.0    -      -       +      +
    249B  GLU      3.3     0.4    -      -       -      -
    250B  LEU*     1.3    75.7    -      -       -      +
    252B  ARG*     1.3    78.9    +      -       +      +
    254B  ILE*     3.3    11.9    +      -       +      +
    255B  THR*     3.1    48.5    +      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 252 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    248B  ARG*     3.2    46.2    +      -       +      +
    249B  GLU*     3.6    35.6    +      -       -      +
    251B  TRP*     1.3    96.5    -      -       +      +
    253B  LYS*     1.3    58.5    +      -       -      +
    255B  THR*     3.5     6.0    +      -       -      -
    256B  THR*     3.0    29.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 253 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122B  GLN*     4.6     7.3    +      -       -      -
    200B  LEU*     3.9    30.9    +      -       +      -
    203B  SER*     3.2    32.5    -      -       -      +
    204B  ASP*     3.0    27.2    +      -       -      +
    249B  GLU*     3.1    23.2    +      -       -      +
    250B  LEU*     3.1    12.7    +      -       +      +
    252B  ARG*     1.3    76.4    -      -       -      +
    254B  ILE*     1.3    58.4    +      -       +      +
    256B  THR*     3.4     7.9    +      -       -      +
    257B  MSE      2.8    31.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 254 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    236B  TYR*     3.9     9.8    -      -       +      +
    239B  TYR*     3.7    43.7    -      -       +      +
    240B  ILE*     3.9    27.6    -      -       +      -
    242B  LEU*     5.3     3.8    -      -       +      +
    250B  LEU*     3.0    37.7    +      -       +      +
    251B  TRP*     3.8     9.2    -      -       +      +
    253B  LYS*     1.3    73.4    -      -       -      +
    255B  THR*     1.3    60.6    +      -       -      +
    257B  MSE      3.2     7.5    +      -       -      +
    258B  LYS*     2.9    27.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 255 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    251B  TRP*     3.1    44.1    +      -       +      -
    252B  ARG*     3.6     9.0    -      -       -      +
    254B  ILE*     1.3    76.2    -      -       -      +
    256B  THR*     1.3    62.6    +      -       -      +
    258B  LYS*     3.3    16.1    +      -       -      +
    259B  GLN*     3.5    18.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 256 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210B  MSE      6.2     1.1    -      -       +      -
    252B  ARG*     3.0    15.4    +      -       -      +
    253B  LYS*     3.6    10.7    -      -       -      -
    255B  THR*     1.3    77.4    -      -       -      +
    257B  MSE      1.3    63.6    +      -       -      +
    259B  GLN*     3.2    11.0    +      -       +      +
    260B  SER*     3.1    24.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with MSE 257 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    203B  SER*     3.6    32.3    -      -       -      +
    206B  THR*     3.8    32.5    -      -       +      +
    232B  LEU*     5.2     1.3    -      -       +      -
    235B  PHE      4.1     0.2    -      -       -      -
    236B  TYR*     3.8    34.8    -      -       +      +
    239B  TYR*     3.6    45.3    -      -       +      -
    253B  LYS      2.8    22.5    +      -       -      +
    254B  ILE*     3.2     7.6    +      -       -      +
    256B  THR*     1.3    74.4    -      -       -      +
    258B  LYS*     1.3    61.2    +      -       -      +
    260B  SER*     3.2     8.3    +      -       -      -
    261B  VAL*     3.0    29.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 258 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    236B  TYR*     3.6    42.8    +      -       +      +
    254B  ILE      2.9     9.2    +      -       -      +
    255B  THR*     3.5    11.9    -      -       -      +
    256B  THR      3.2     0.2    -      -       -      -
    257B  MSE      1.3    75.7    -      -       -      +
    259B  GLN*     1.3    67.9    -      -       -      +
    261B  VAL*     3.4     5.8    +      -       +      +
    262B  LEU*     3.0    52.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 259 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    255B  THR*     3.5    15.6    +      -       +      +
    256B  THR*     3.2    10.4    +      -       +      +
    258B  LYS*     1.3    88.3    -      -       -      +
    260B  SER*     1.3    57.6    +      -       -      +
    262B  LEU*     3.4    25.4    +      -       -      +
    263B  LYS*     3.0    48.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 260 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206B  THR*     4.2    12.7    +      -       -      -
    207B  GLY*     4.5     4.2    +      -       -      -
    210B  MSE      3.0    50.4    -      -       -      +
    232B  LEU*     3.9     8.9    -      -       -      +
    256B  THR*     3.1    17.3    +      -       -      +
    257B  MSE      3.4    12.1    -      -       -      -
    259B  GLN*     1.3    72.1    -      -       -      +
    261B  VAL*     1.3    65.7    +      -       -      +
    263B  LYS*     3.3     1.0    +      -       -      -
    264B  ALA*     3.0    23.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 261 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    229B  CYS*     5.1     0.2    -      -       -      -
    232B  LEU*     3.6    25.4    -      -       +      +
    233B  GLN*     4.4    13.0    -      -       +      +
    236B  TYR*     3.6    37.9    -      -       +      -
    257B  MSE      3.0    21.9    +      -       +      +
    258B  LYS*     3.5     9.6    -      -       +      +
    260B  SER*     1.3    75.3    -      -       -      +
    262B  LEU*     1.3    60.7    +      -       +      +
    264B  ALA*     3.4     1.7    +      -       -      +
    265B  GLU*     2.9    53.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 262 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    258B  LYS*     3.0    43.7    +      -       +      +
    259B  GLN*     3.8    30.3    -      -       -      +
    260B  SER      3.3     0.2    -      -       -      -
    261B  VAL*     1.3    80.9    -      -       +      +
    263B  LYS*     1.3    55.6    +      -       +      +
    265B  GLU*     3.5    17.3    +      -       -      +
    266B  ASN*     2.4    48.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 263 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210B  MSE      3.8    34.9    -      -       +      +
    214B  ILE*     5.4     6.3    -      -       +      -
    259B  GLN*     3.0    31.0    +      -       -      +
    260B  SER      3.6     4.7    -      -       -      +
    261B  VAL      3.3     0.2    -      -       -      -
    262B  LEU*     1.3    72.9    -      -       +      +
    264B  ALA*     1.3    61.6    +      -       -      +
    266B  ASN*     3.2     6.1    +      -       -      +
    267B  VAL*     3.0    32.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 264 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210B  MSE      4.5     2.8    -      -       +      +
    213B  CYS*     4.0    24.9    -      -       +      -
    229B  CYS*     4.1    14.1    -      -       -      -
    232B  LEU*     3.5    32.3    -      -       +      -
    260B  SER      3.0     8.7    +      -       -      +
    261B  VAL*     3.8     3.1    -      -       -      +
    263B  LYS*     1.3    76.2    -      -       -      +
    265B  GLU*     1.3    61.2    +      -       -      +
    267B  VAL*     3.4     4.7    +      -       -      +
    268B  CYS*     3.2    27.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 265 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    229B  CYS*     3.6    20.4    -      -       -      -
    233B  GLN*     2.6    33.9    +      -       -      +
    261B  VAL*     2.9    30.8    +      -       +      +
    262B  LEU*     3.8    24.1    -      -       -      +
    264B  ALA*     1.3    76.2    -      -       -      +
    266B  ASN*     1.3    61.1    -      -       -      +
    268B  CYS*     3.7     3.4    +      -       -      +
    269B  TYR*     3.1    26.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 266 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    262B  LEU*     2.4    47.5    +      -       -      +
    263B  LYS*     3.2     6.7    +      -       -      +
    265B  GLU*     1.3    79.8    -      -       -      +
    267B  VAL*     1.3    58.1    +      -       -      +
    269B  TYR*     3.4    13.7    -      -       -      +
    270B  ASN*     3.0    41.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 267 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    213B  CYS*     3.8    25.8    -      -       -      +
    214B  ILE*     4.6    17.5    -      -       +      -
    217B  LEU*     4.2    29.6    -      -       +      -
    225B  CYS*     3.9    21.8    -      -       +      -
    263B  LYS      3.0    20.2    +      -       -      +
    264B  ALA*     3.4     7.6    +      -       -      +
    266B  ASN*     1.3    73.8    -      -       -      +
    268B  CYS*     1.3    64.6    +      -       -      +
    270B  ASN*     3.0     7.8    +      -       -      +
    271B  VAL*     2.9    30.3    +      -       +      +
    279B  ALA*     5.0     0.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 268 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    213B  CYS*     4.9     0.2    -      -       -      -
    225B  CYS*     3.5    34.5    -      -       -      -
    226B  LEU*     3.7    28.9    -      -       +      +
    229B  CYS*     3.6    15.3    -      -       -      -
    264B  ALA      3.2    15.7    +      -       -      +
    265B  GLU*     4.0     6.3    -      -       -      +
    267B  VAL*     1.3    79.1    -      -       -      +
    269B  TYR*     1.3    57.4    +      -       -      +
    271B  VAL*     3.5     9.6    +      -       -      +
    272B  LYS*     3.0    28.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 269 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    265B  GLU      3.1    15.2    +      -       -      +
    266B  ASN*     3.4    18.8    -      -       -      +
    268B  CYS*     1.3    75.6    -      -       -      +
    270B  ASN*     1.3    84.3    +      -       -      +
    272B  LYS*     3.3     5.6    +      -       +      +
    273B  VAL*     3.0    58.7    +      -       +      +
    274B  ARG*     4.3     5.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 270 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217B  LEU*     6.4     0.4    -      -       +      -
    266B  ASN*     3.0    29.7    +      -       -      +
    267B  VAL*     3.0     7.4    +      -       -      +
    269B  TYR*     1.3    85.0    -      -       -      +
    271B  VAL*     1.3    60.3    +      -       -      +
    273B  VAL*     3.9     3.8    -      -       -      -
    274B  ARG*     2.7    67.6    +      -       -      +
    275B  GLY      3.6     0.2    +      -       -      -
    279B  ALA*     3.5    24.7    -      -       +      +
    282B  GLY      6.1     2.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 271 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217B  LEU*     3.8    26.9    -      -       +      -
    222B  THR*     4.0    35.9    -      -       +      +
    225B  CYS*     4.9     4.7    -      -       +      -
    226B  LEU*     6.4     1.3    -      -       +      -
    267B  VAL*     2.9    23.1    +      -       +      +
    268B  CYS*     3.5    11.9    -      -       -      +
    270B  ASN*     1.3    77.1    -      -       -      +
    272B  LYS*     1.3    63.3    +      -       -      +
    275B  GLY*     3.1    24.5    +      -       -      -
    276B  GLY*     4.6     6.5    -      -       -      +
    279B  ALA*     4.1     4.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 272 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    268B  CYS      3.0    16.9    +      -       -      +
    269B  TYR*     3.3     8.5    +      -       +      +
    271B  VAL*     1.3    79.2    -      -       -      +
    273B  VAL*     1.3    64.8    +      -       +      +
    275B  GLY*     4.8     0.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 273 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    269B  TYR*     3.0    50.1    +      -       +      +
    270B  ASN*     3.9     2.7    -      -       -      -
    272B  LYS*     1.3    86.3    -      -       +      +
    274B  ARG*     1.3    92.7    +      -       +      +
    275B  GLY      3.6     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 274 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    269B  TYR*     4.3     7.7    +      -       -      -
    270B  ASN*     2.7    52.9    +      -       -      +
    273B  VAL*     1.3    92.7    -      -       +      +
    275B  GLY*     1.3    61.5    +      -       -      +
    278B  ALA*     3.4    42.1    +      -       +      +
    279B  ALA*     4.2     2.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 275 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    270B  ASN      3.6     0.2    +      -       -      -
    271B  VAL*     3.1    17.9    +      -       -      -
    272B  LYS      4.7     0.6    +      -       -      -
    273B  VAL      3.6     1.0    -      -       -      -
    274B  ARG*     1.3    78.8    -      -       -      +
    276B  GLY*     1.3    66.8    +      -       -      -
    277B  GLU      3.2     3.5    +      -       -      -
    278B  ALA      3.4     0.3    +      -       -      -
    279B  ALA*     3.1    22.9    +      -       -      +
----------------------------------------------------------
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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