Contacts of the helix formed by residues 376 - 400 (chain C) in PDB entry 1SL0


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 ASP 376 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    349C  ALA*     5.4     3.9    +      -       +      -
    374C  VAL*     3.9     4.0    -      -       +      +
    375C  ASP*     1.3    78.2    -      -       -      +
    377C  PRO*     1.3    75.3    -      -       -      +
    378C  GLU*     3.0    24.3    +      -       -      +
    379C  LYS*     3.0    29.1    +      -       +      +
    380C  GLN*     3.1    12.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 377 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    375C  ASP      3.0    10.2    -      -       -      +
    376C  ASP*     1.3    86.0    -      -       -      +
    378C  GLU*     1.3    67.0    +      -       +      +
    380C  GLN*     3.5     5.7    +      -       +      +
    381C  ALA*     3.2    22.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 378 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    259C  GLU*     5.6     0.9    -      -       -      +
    260C  THR*     3.5    37.5    +      -       +      +
    376C  ASP*     3.0    17.3    +      -       -      +
    377C  PRO*     1.3    76.5    -      -       +      +
    379C  LYS*     1.3    58.2    +      -       -      +
    381C  ALA*     3.1    23.9    -      -       +      +
    382C  ALA*     3.2     8.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 379 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    260C  THR*     4.4     7.9    -      -       +      -
    261C  PHE*     4.7    16.2    -      -       +      -
    346C  LEU*     5.3     2.4    -      -       +      +
    349C  ALA*     5.2     6.7    -      -       +      -
    374C  VAL*     4.1    11.0    -      -       +      -
    376C  ASP*     3.0    28.2    +      -       +      +
    378C  GLU*     1.3    75.5    -      -       -      +
    380C  GLN*     1.3    61.3    +      -       -      +
    381C  ALA      2.9     1.6    -      -       -      -
    382C  ALA*     2.8    29.6    +      -       -      +
    383C  ILE*     3.2     8.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 380 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    372C  VAL      5.7     1.1    -      -       -      +
    373C  ARG*     5.7     2.2    -      -       -      -
    374C  VAL*     3.5    31.7    -      -       +      +
    376C  ASP      3.1     8.6    +      -       -      +
    377C  PRO*     4.2     6.3    -      -       +      +
    379C  LYS*     1.3    78.2    -      -       -      +
    381C  ALA*     1.3    61.8    +      -       -      +
    383C  ILE*     3.2    27.4    +      -       +      +
    384C  ASP*     3.8     6.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 381 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    377C  PRO      3.2    13.3    +      -       -      +
    378C  GLU*     3.1    17.0    -      -       -      +
    379C  LYS      2.9     0.4    -      -       -      -
    380C  GLN*     1.3    79.7    -      -       -      +
    382C  ALA*     1.3    57.5    +      -       -      +
    384C  ASP*     3.2    21.8    +      -       -      +
    385C  LEU*     3.6     9.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 382 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    257C  LEU*     4.0    12.3    -      -       +      -
    260C  THR*     4.1     9.9    -      -       +      +
    261C  PHE*     3.7    26.7    -      -       +      -
    378C  GLU      3.2     8.5    +      -       -      +
    379C  LYS      2.8    12.8    +      -       -      +
    381C  ALA*     1.3    77.3    -      -       -      +
    383C  ILE*     1.3    63.4    +      -       -      +
    384C  ASP      3.2     0.4    -      -       -      -
    385C  LEU*     3.1    13.7    +      -       +      +
    386C  ILE*     3.0    29.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 383 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    346C  LEU*     3.6    30.5    -      -       +      -
    369C  LEU*     3.3    30.9    -      -       +      +
    372C  VAL*     3.4    42.2    -      -       +      +
    374C  VAL*     4.7     5.4    -      -       +      -
    379C  LYS      3.2     4.6    +      -       -      +
    380C  GLN*     3.2    23.9    +      -       +      +
    381C  ALA      3.1     0.6    -      -       -      -
    382C  ALA*     1.3    77.5    -      -       -      +
    384C  ASP*     1.3    65.3    +      -       -      +
    386C  ILE*     3.2    10.0    +      -       +      +
    387C  LYS*     3.1    32.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 384 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    380C  GLN      3.8     5.6    +      -       -      +
    381C  ALA*     3.2    12.3    +      -       -      +
    382C  ALA      3.2     0.6    -      -       -      -
    383C  ILE*     1.3    82.4    -      -       -      +
    385C  LEU*     1.3    60.9    +      -       +      +
    387C  LYS*     3.7    26.6    -      -       -      +
    388C  GLU*     3.4    21.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 385 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    249C  ARG*     5.3     2.7    -      -       -      +
    253C  LEU*     3.8    18.6    -      -       +      +
    256C  LYS*     4.3    18.8    -      -       +      +
    257C  LEU*     3.3    31.0    -      -       +      +
    381C  ALA      4.0    11.0    -      -       -      +
    382C  ALA*     3.1    13.6    +      -       +      +
    383C  ILE      3.1     0.6    -      -       -      -
    384C  ASP*     1.3    77.9    -      -       +      +
    386C  ILE*     1.3    63.1    +      -       -      +
    388C  GLU*     3.6    21.4    +      -       -      +
    389C  TYR*     2.8    27.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 386 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    257C  LEU*     4.0    14.6    -      -       +      -
    261C  PHE*     4.4    12.3    -      -       +      -
    334C  PHE*     4.1    22.4    -      -       +      -
    336C  PRO*     3.8    15.5    -      -       +      +
    342C  ILE*     3.3    45.1    -      -       +      -
    346C  LEU*     5.2     6.1    -      -       +      -
    369C  LEU*     5.5     4.5    -      -       +      -
    382C  ALA      3.0    15.9    +      -       -      +
    383C  ILE*     3.2    11.4    +      -       +      +
    385C  LEU*     1.3    75.3    -      -       -      +
    387C  LYS*     1.3    67.9    +      -       +      +
    388C  GLU      3.0     1.3    -      -       -      -
    389C  TYR*     2.7     5.2    +      -       -      -
    390C  LEU*     2.6    30.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 387 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    366C  ASP*     2.5    51.7    +      -       -      +
    369C  LEU*     3.9    21.5    -      -       +      +
    370C  GLU*     3.3    27.9    -      -       -      +
    383C  ILE*     3.1    28.3    +      -       +      +
    384C  ASP*     3.7    29.2    -      -       -      +
    386C  ILE*     1.3    81.1    -      -       -      +
    388C  GLU*     1.3    58.7    +      -       -      +
    390C  LEU*     3.4    10.5    +      -       -      +
    391C  MET*     3.3    19.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 388 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    249C  ARG*     2.9    46.1    +      -       -      +
    253C  LEU*     3.3    23.8    -      -       +      +
    384C  ASP      3.4    13.9    +      -       -      +
    385C  LEU*     3.8    12.8    -      -       -      +
    386C  ILE      3.0     0.2    -      -       -      -
    387C  LYS*     1.3    78.6    -      -       -      +
    389C  TYR*     1.3    59.4    +      -       -      +
    391C  MET*     3.4    10.7    +      -       -      +
    392C  ILE*     3.0    34.6    +      -       +      +
    447C  TYR*     5.4     1.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 389 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    250C  ARG*     3.8    25.3    -      -       +      +
    253C  LEU*     3.8    29.2    -      -       +      -
    254C  LEU*     4.1    22.1    -      -       +      +
    257C  LEU*     4.7     1.1    -      -       +      -
    335C  ASN*     4.8     3.8    +      -       -      -
    336C  PRO*     3.3    44.3    -      -       +      +
    337C  SER*     3.4    24.2    +      -       -      -
    385C  LEU      2.8    19.2    +      -       -      +
    386C  ILE*     2.7    16.7    +      -       -      +
    388C  GLU*     1.3    70.0    -      -       -      +
    390C  LEU*     1.3    68.4    +      -       +      +
    392C  ILE*     3.4     3.7    +      -       +      +
    393C  GLN*     3.3    43.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 390 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    336C  PRO      3.2    25.1    -      -       -      +
    337C  SER*     3.8    22.0    -      -       -      +
    339C  ARG*     6.4     1.1    -      -       +      -
    342C  ILE*     3.9    18.2    -      -       +      -
    364C  VAL      5.2     3.8    -      -       -      +
    366C  ASP      6.1     0.4    -      -       -      +
    369C  LEU*     4.2    21.8    -      -       +      -
    386C  ILE*     2.6    23.9    +      -       +      +
    387C  LYS*     3.7     5.6    -      -       -      +
    389C  TYR*     1.3    74.3    -      -       +      +
    391C  MET*     1.3    62.5    +      -       -      +
    393C  GLN*     3.3    10.6    +      -       +      +
    394C  LYS*     3.1    18.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 391 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    387C  LYS      3.3    10.9    +      -       -      +
    388C  GLU*     3.8    13.2    -      -       -      +
    389C  TYR      3.2     0.2    -      -       -      -
    390C  LEU*     1.3    75.0    -      -       -      +
    392C  ILE*     1.3    95.9    +      -       +      +
    393C  GLN      2.9     1.3    -      -       -      -
    394C  LYS*     2.7    20.0    +      -       -      +
    395C  ARG*     3.2    44.7    +      -       +      +
    446C  PRO*     3.7    27.8    -      -       +      -
    447C  TYR*     3.8    14.8    -      -       +      -
     19Q    C      5.2     8.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 392 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246C  LEU*     3.8    15.7    -      -       +      +
    249C  ARG*     4.2     9.9    -      -       +      -
    250C  ARG*     4.0    17.9    -      -       +      +
    253C  LEU*     4.2    15.0    -      -       +      -
    388C  GLU*     3.0    27.1    +      -       +      +
    389C  TYR*     3.8     7.9    -      -       +      +
    391C  MET*     1.3    98.8    -      -       +      +
    393C  GLN*     1.3    56.7    +      -       -      +
    395C  ARG*     3.4     3.1    +      -       -      +
    396C  ILE*     2.9    49.1    +      -       +      +
    447C  TYR*     3.3    28.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 393 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    250C  ARG*     2.6    47.4    +      -       -      +
    337C  SER*     4.0    10.7    +      -       -      +
    389C  TYR*     3.3    36.9    +      -       +      +
    390C  LEU*     3.3    12.8    +      -       +      +
    391C  MET      2.9     0.6    -      -       -      -
    392C  ILE*     1.3    76.7    -      -       +      +
    394C  LYS*     1.3    56.5    +      -       -      +
    395C  ARG      2.9     5.4    -      -       -      -
    396C  ILE*     4.2     4.2    -      -       -      +
    397C  GLY*     3.0    26.3    +      -       -      -
    401C  GLU*     4.3     0.8    +      -       -      -
     11U    C      5.0     2.8    -      -       -      +
     12U    T      4.2    29.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 394 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    390C  LEU      3.1    10.4    +      -       -      +
    391C  MET*     2.7    17.4    +      -       -      +
    393C  GLN*     1.3    71.4    -      -       -      +
    395C  ARG*     1.3    68.3    +      -       -      +
    397C  GLY      4.2     0.9    -      -       -      -
    398C  GLN*     3.4    31.0    +      -       -      +
    439C  GLN*     5.7     0.4    -      -       -      +
     17Q    T      5.0     4.5    -      -       -      -
     18Q    G      3.1    72.2    +      -       -      +
     19Q    C      3.7    26.6    +      -       -      +
     10U    A      5.4     2.7    +      -       -      -
     11U    C      5.4    14.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 395 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    242C  LEU*     6.0     1.3    -      -       +      -
    246C  LEU*     4.1    14.4    -      -       +      -
    391C  MET*     3.3    40.2    +      -       +      +
    392C  ILE      3.6     7.2    -      -       -      +
    394C  LYS*     1.3    96.4    -      -       -      +
    396C  ILE*     1.3    65.0    +      -       -      +
    397C  GLY      3.0     1.6    -      -       -      -
    398C  GLN*     3.2     3.2    +      -       -      +
    399C  SER*     2.8    31.4    +      -       -      -
    441C  PRO*     3.6    31.2    -      -       -      +
    445C  SER*     3.7    23.8    +      -       -      -
    446C  PRO*     2.8    37.6    +      -       -      +
    447C  TYR*     4.1    11.3    -      -       +      +
    451C  CYS*     4.6     8.3    -      -       -      -
     19Q    C      4.6    17.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 396 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    243C  TYR*     3.5    22.4    -      -       +      -
    246C  LEU*     3.5    21.1    -      -       +      +
    247C  ALA      3.7    18.8    -      -       -      +
    250C  ARG*     3.4    31.9    -      -       -      +
    392C  ILE*     2.9    39.6    +      -       +      +
    393C  GLN*     3.4     4.2    +      -       -      +
    395C  ARG*     1.3    76.0    -      -       -      +
    397C  GLY*     1.3    57.1    +      -       -      +
    399C  SER*     4.0     4.9    -      -       -      -
    400C  ALA      3.1     6.8    +      -       -      -
    401C  GLU*     2.8    51.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 397 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    393C  GLN      3.0    14.6    +      -       -      -
    394C  LYS      4.8     0.4    -      -       -      -
    395C  ARG      3.0     0.6    -      -       -      -
    396C  ILE*     1.3    77.9    -      -       -      +
    398C  GLN*     1.3    64.1    +      -       -      +
    399C  SER      3.2     1.0    +      -       -      -
    401C  GLU*     4.7     0.2    -      -       -      -
    402C  GLY*     2.9    34.3    +      -       -      -
    405C  ALA*     3.8     4.9    -      -       -      +
     11U    C      3.7    25.5    -      -       -      +
     12U    T      4.0     5.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 398 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    394C  LYS*     3.4    27.3    +      -       -      +
    395C  ARG*     3.2     5.4    +      -       -      +
    397C  GLY*     1.3    76.1    -      -       -      +
    399C  SER*     1.3    58.2    +      -       -      +
    404C  LYS      4.4     1.8    -      -       -      +
    405C  ALA*     3.7     3.6    -      -       -      +
    406C  TRP*     3.3    52.5    +      -       +      +
    436C  ASN      4.9     1.0    +      -       -      -
    439C  GLN*     2.5    44.8    +      -       -      +
    440C  ILE*     3.7     1.8    -      -       -      +
    441C  PRO*     3.3    23.0    -      -       -      +
     19Q    C      4.9     6.4    -      -       -      +
     11U    C      4.3     9.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 399 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    239C  ILE*     4.3    11.1    +      -       -      +
    242C  LEU*     4.6     8.1    -      -       -      +
    243C  TYR*     5.3     2.8    -      -       -      +
    246C  LEU*     4.4     9.5    -      -       -      +
    395C  ARG      2.8    22.0    +      -       -      -
    396C  ILE*     4.0     3.3    -      -       -      -
    398C  GLN*     1.3    80.1    -      -       -      +
    400C  ALA*     1.3    64.8    +      -       -      +
    405C  ALA*     3.5     3.1    -      -       -      +
    406C  TRP*     3.3    32.8    +      -       -      +
    407C  LEU*     3.1    33.1    +      -       -      +
    451C  CYS*     5.5     1.1    -      -       -      -
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Residues in contact with ALA 400 (chain C). Click here for Legend to table.
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                                  Specific contacts
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     Residue       Dist    Surf   HB    Arom    Phob    DC
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    243C  TYR*     3.2    46.9    -      -       +      -
    396C  ILE      3.1     4.1    +      -       -      +
    399C  SER*     1.3    83.5    +      -       -      +
    401C  GLU*     1.3    64.9    +      -       -      +
    402C  GLY      4.2     0.5    -      -       -      +
    405C  ALA*     3.4    14.3    -      -       -      +
    407C  LEU*     3.5    21.7    -      -       +      +
    408C  ARG*     5.3     2.3    +      -       -      +
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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
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  Atomic class           I  II  III   IV   V   VI  VII  VIII
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   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
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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