Contacts of the helix formed by residues 361 - 386 (chain C) in PDB entry 5NC5


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with ASN 361 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    356C  TYR*     4.0    10.3    -      -       -      -
    359C  LEU      3.1    22.0    +      -       -      -
    360C  GLN*     1.3    80.1    -      -       -      +
    362C  PHE*     1.3    64.7    +      -       -      +
    363C  ARG*     3.4    23.7    +      -       -      +
    364C  ALA*     3.3    24.9    +      -       -      +
    365C  THR*     3.0    22.0    +      -       -      -
    417C  GLU*     4.7     6.7    +      -       -      -
    497C  LEU*     5.3     1.7    -      -       -      +
    498C  LYS*     5.0    12.3    +      -       -      +
    509C  LYS*     5.5     2.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 362 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    352C  PHE*     4.8    13.5    -      +       -      -
    356C  TYR*     3.3    37.9    -      +       -      -
    361C  ASN*     1.3    73.7    +      -       -      +
    363C  ARG*     1.3    66.1    +      -       +      +
    365C  THR*     3.2     4.2    +      -       -      -
    366C  LEU*     2.9    31.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 363 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    361C  ASN*     3.3    12.2    +      -       -      +
    362C  PHE*     1.3    81.2    -      -       +      +
    364C  ALA*     1.3    63.6    +      -       -      +
    366C  LEU*     3.2    14.3    +      -       -      +
    367C  ILE*     3.3    18.3    +      -       -      +
    495C  THR      5.3     1.0    +      -       -      -
    496C  MET*     3.4    53.8    +      -       +      +
    497C  LEU*     5.3     2.9    -      -       +      -
    498C  LYS*     3.9    33.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 364 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    359C  LEU*     3.1    25.6    -      -       +      +
    361C  ASN*     3.3    25.5    +      -       -      +
    362C  PHE      3.4     0.2    -      -       -      -
    363C  ARG*     1.3    77.0    -      -       -      +
    365C  THR*     1.3    65.3    +      -       -      +
    367C  ILE*     3.4     7.4    +      -       -      +
    368C  PRO*     3.0    21.3    -      -       -      +
    413C  VAL*     4.4     2.9    -      -       +      +
    417C  GLU*     4.5     5.6    -      -       -      +
    497C  LEU*     3.6    27.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 365 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    352C  PHE*     3.5    30.1    -      -       +      +
    355C  MET*     3.6    11.7    -      -       +      -
    356C  TYR*     3.4    47.6    -      -       +      +
    359C  LEU*     3.8    13.7    -      -       -      +
    361C  ASN      3.0    19.8    +      -       -      -
    362C  PHE      3.9     2.9    -      -       -      -
    364C  ALA*     1.3    76.3    -      -       -      +
    366C  LEU*     1.3    61.7    +      -       -      +
    367C  ILE      3.3     0.5    +      -       -      -
    368C  PRO*     3.5     5.0    -      -       -      +
    369C  THR*     2.8    25.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 366 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    352C  PHE*     4.7    11.4    -      -       +      -
    362C  PHE*     2.9    21.3    +      -       +      +
    363C  ARG*     3.6     8.3    -      -       -      +
    364C  ALA      3.1     0.6    -      -       -      -
    365C  THR*     1.3    78.9    -      -       -      +
    367C  ILE*     1.3    61.9    +      -       -      +
    369C  THR*     3.4    19.8    -      -       +      -
    370C  ILE*     3.0    41.3    +      -       +      +
    496C  MET*     4.2    11.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 367 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    363C  ARG      3.3    16.8    -      -       -      +
    364C  ALA*     3.7     5.2    -      -       -      +
    366C  LEU*     1.3    78.4    -      -       -      +
    368C  PRO*     1.3    68.8    -      -       +      +
    370C  ILE*     3.4    20.4    +      -       -      +
    371C  ALA      3.9     2.3    +      -       -      -
    413C  VAL*     3.5    23.6    -      -       +      -
    489C  THR*     3.9    23.1    +      -       +      +
    492C  LEU*     4.0    24.8    -      -       +      +
    493C  CYS*     3.9    26.2    -      -       -      +
    496C  MET*     3.5    18.2    -      -       +      -
    497C  LEU*     4.0    19.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with PRO 368 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    355C  MET*     3.3    34.5    -      -       +      -
    359C  LEU*     4.3     7.9    -      -       +      -
    364C  ALA      3.0    26.5    -      -       -      +
    365C  THR      3.5     4.5    -      -       -      +
    367C  ILE*     1.3    87.3    -      -       +      +
    369C  THR*     1.3    60.1    +      -       -      +
    370C  ILE      3.1     0.2    -      -       -      -
    371C  ALA*     3.1    19.4    +      -       -      +
    372C  VAL      3.9     0.2    +      -       -      -
    406C  VAL*     3.7    12.2    -      -       +      +
    409C  ALA*     3.7    28.3    -      -       +      +
    410C  ILE*     4.2    11.9    -      -       +      +
    413C  VAL*     4.0     9.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 369 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    348C  ILE*     6.0     6.1    -      -       +      -
    352C  PHE*     3.5    24.9    -      -       +      +
    355C  MET*     3.3    16.9    -      -       -      +
    365C  THR      2.8    22.6    +      -       -      -
    366C  LEU*     3.2    23.5    +      -       +      -
    367C  ILE      3.2     1.0    -      -       -      -
    368C  PRO*     1.3    74.5    -      -       -      +
    370C  ILE*     1.3    64.5    +      -       +      +
    372C  VAL*     3.2    12.9    +      -       +      +
    373C  PRO*     3.1    17.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 370 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13C  TRP*     4.0    28.0    -      -       +      -
     20C  MET*     6.2     1.3    -      -       +      -
    366C  LEU*     3.0    26.4    +      -       +      +
    367C  ILE      3.5     8.5    -      -       -      +
    369C  THR*     1.3    76.6    -      -       +      +
    371C  ALA*     1.3    65.1    +      -       -      +
    373C  PRO*     3.1    17.6    -      -       +      +
    374C  VAL*     3.5    15.6    -      -       +      +
    488C  LEU*     3.7    28.9    -      -       +      -
    492C  LEU*     4.0    14.8    -      -       +      -
    496C  MET*     4.1    16.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 371 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    367C  ILE      3.9     2.1    +      -       -      +
    368C  PRO*     3.1    17.2    +      -       +      +
    370C  ILE*     1.3    80.2    -      -       -      +
    372C  VAL*     1.3    56.7    +      -       -      +
    374C  VAL*     3.4     2.9    +      -       -      -
    375C  VAL*     2.8    35.0    +      -       +      +
    405C  LEU*     3.7    18.2    -      -       +      +
    406C  VAL*     5.0     0.7    -      -       +      -
    409C  ALA*     4.4    13.7    -      -       +      -
    484C  VAL*     3.8    29.6    -      -       +      -
    489C  THR*     5.2     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 372 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    348C  ILE*     4.0    26.7    -      -       +      -
    351C  VAL*     5.9     1.3    -      -       +      -
    369C  THR*     3.2    11.3    +      -       +      +
    370C  ILE      3.0     1.4    -      -       -      -
    371C  ALA*     1.3    76.5    -      -       -      +
    373C  PRO*     1.3    75.7    -      -       +      +
    376C  LEU*     2.9    48.2    +      -       +      +
    402C  ILE*     4.2    12.3    -      -       +      +
    405C  LEU*     3.6    17.9    -      -       +      -
    406C  VAL*     3.7    27.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with PRO 373 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20C  MET*     3.6    21.3    -      -       -      -
    369C  THR*     3.1    14.8    -      -       +      +
    370C  ILE*     3.1    17.9    -      -       +      +
    372C  VAL*     1.3    92.0    -      -       +      +
    374C  VAL*     1.3    56.6    +      -       -      +
    376C  LEU*     4.7     2.5    -      -       +      -
    377C  LEU*     2.9    43.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 374 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13C  TRP*     6.1     0.2    -      -       +      -
     16C  ALA*     3.6    37.9    -      -       +      -
     19C  ILE*     3.2    24.0    -      -       +      +
     20C  MET*     3.5    22.4    -      -       +      -
    370C  ILE*     3.5    23.8    -      -       +      +
    371C  ALA*     3.4     6.3    +      -       -      +
    372C  VAL      3.3     0.4    -      -       -      -
    373C  PRO*     1.3    75.7    -      -       -      +
    375C  VAL*     1.3    59.0    +      -       -      +
    378C  GLY*     3.1    19.8    +      -       -      -
    480C  LEU*     4.5     1.7    -      -       +      +
    484C  VAL*     3.6    25.6    -      -       +      -
    488C  LEU*     4.6     3.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 375 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    371C  ALA*     2.8    25.4    +      -       +      +
    374C  VAL*     1.3    70.8    -      -       -      +
    376C  LEU*     1.3    63.2    +      -       +      +
    378C  GLY      3.4     0.5    +      -       -      -
    379C  THR*     2.9    31.8    +      -       -      +
    405C  LEU*     3.9    26.7    -      -       +      -
    477C  ALA*     3.4    39.5    -      -       +      +
    480C  LEU*     3.6    10.3    -      -       +      +
    481C  SER*     3.8    20.6    -      -       -      +
    484C  VAL*     3.7    24.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 376 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    344C  LEU*     5.7     4.9    -      -       +      -
    348C  ILE*     4.7     7.4    -      -       +      -
    372C  VAL*     2.9    39.8    +      -       +      +
    373C  PRO*     4.2     2.0    -      -       +      +
    375C  VAL*     1.3    76.6    -      -       +      +
    377C  LEU*     1.3    68.1    +      -       +      +
    379C  THR*     2.8    16.5    +      -       -      +
    380C  PHE*     2.9    22.2    +      -       +      -
    398C  MET*     3.7    44.3    -      -       +      +
    401C  ALA*     5.3     3.6    -      -       +      -
    402C  ILE*     3.8    15.0    -      -       +      -
    405C  LEU*     4.1    17.5    -      -       +      -
    477C  ALA*     5.6     1.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 377 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20C  MET*     3.4    51.6    -      -       +      +
     23C  GLY*     3.1    10.9    -      -       -      -
     24C  GLY*     3.9    15.9    -      -       -      +
     27C  ILE*     3.7    28.9    -      -       +      -
    373C  PRO*     2.9    26.0    +      -       +      +
    376C  LEU*     1.3    76.3    -      -       +      +
    378C  GLY*     1.3    65.4    +      -       -      +
    380C  PHE*     2.9    15.2    +      -       +      +
    381C  ALA      3.0     9.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 378 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19C  ILE*     3.4    26.7    -      -       -      +
    374C  VAL      3.1    12.0    +      -       -      -
    375C  VAL      3.8     1.1    -      -       -      -
    377C  LEU*     1.3    78.1    -      -       -      +
    379C  THR*     1.3    61.4    +      -       -      +
    381C  ALA*     3.1    12.2    +      -       -      +
    382C  VAL*     3.0    24.3    +      -       -      +
    480C  LEU*     3.7    12.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 379 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    375C  VAL*     2.9    15.9    +      -       -      +
    376C  LEU*     2.8    13.1    +      -       -      -
    378C  GLY*     1.3    73.3    -      -       -      +
    380C  PHE*     1.3    61.0    +      -       -      +
    382C  VAL*     3.3     5.2    +      -       -      +
    383C  LEU*     2.9    30.6    +      -       +      +
    398C  MET*     4.1    10.8    -      -       +      -
    473C  THR*     3.9    36.6    -      -       +      +
    476C  SER*     3.9    12.8    -      -       -      +
    477C  ALA*     3.5    27.4    +      -       +      +
    480C  LEU*     4.0     2.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 380 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23C  GLY      4.0     4.3    -      -       -      +
     26C  ALA*     3.8     3.9    -      -       -      +
     27C  ILE*     3.5    34.3    -      -       +      -
     30C  LEU*     3.7    22.3    -      -       +      +
    344C  LEU*     5.9     1.3    -      -       +      -
    376C  LEU*     2.9    28.7    +      -       +      -
    377C  LEU*     2.9     8.9    +      -       +      +
    379C  THR*     1.3    76.2    -      -       -      +
    381C  ALA*     1.3    56.7    +      -       -      +
    383C  LEU*     3.3    10.6    +      -       +      +
    384C  ALA*     2.9    29.6    +      -       -      +
    390C  ILE*     3.7    25.8    -      -       +      -
    395C  MET*     3.7    16.8    -      -       +      -
    398C  MET*     3.4    32.3    -      -       +      -
   1102C  D10      4.1    20.0    -      -       +      -
----------------------------------------------------------
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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
----------------------------------------------------------
     22C  ALA*     4.1    13.0    -      -       +      +
     23C  GLY*     3.9    17.8    -      -       -      +
     26C  ALA*     4.0    10.8    -      -       -      -
    377C  LEU      3.0    10.3    +      -       -      +
    378C  GLY*     3.1    14.6    -      -       -      +
    380C  PHE*     1.3    76.0    -      -       -      +
    382C  VAL*     1.3    57.8    +      -       +      +
    384C  ALA*     3.1     5.5    +      -       -      +
    385C  ALA*     3.0    27.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 382 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    378C  GLY      3.0    16.5    +      -       -      +
    379C  THR      3.6     7.6    -      -       -      +
    381C  ALA*     1.3    70.5    -      -       +      +
    383C  LEU*     1.3    70.5    +      -       +      +
    385C  ALA*     2.8    18.6    +      -       -      +
    386C  PHE*     3.1    40.5    +      -       +      -
    472C  ILE*     4.4     8.3    -      -       +      -
    476C  SER*     3.8    31.6    -      -       -      +
    480C  LEU*     5.3     3.4    -      -       +      -
   1105C  HEX      4.6    19.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 383 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30C  LEU*     4.8     7.6    -      -       +      -
    379C  THR*     2.9    21.4    +      -       +      +
    380C  PHE*     3.5    16.2    -      -       +      +
    382C  VAL*     1.3    78.7    -      -       +      +
    384C  ALA*     1.3    64.1    +      -       -      +
    386C  PHE      3.4     0.9    +      -       -      -
    387C  GLY      3.1     3.6    +      -       -      -
    388C  PHE*     2.9    45.6    +      -       +      +
    389C  SER      4.6     5.2    -      -       -      +
    390C  ILE*     5.8     0.9    -      -       -      -
    394C  THR*     3.9    24.0    -      -       +      +
    395C  MET*     5.8     0.4    -      -       +      -
    398C  MET*     4.0    26.0    -      -       +      -
    472C  ILE*     3.7    36.3    -      -       +      -
    473C  THR*     4.3     8.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 384 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26C  ALA*     3.7    21.1    -      -       +      -
     29C  LYS*     5.9     4.5    -      -       +      -
     30C  LEU*     3.8    19.9    -      -       +      +
    380C  PHE      2.9    14.0    +      -       -      +
    381C  ALA      3.5     7.9    -      -       -      +
    382C  VAL      3.1     0.2    -      -       -      -
    383C  LEU*     1.3    78.2    -      -       -      +
    385C  ALA*     1.3    62.9    +      -       -      +
    387C  GLY*     3.2    14.4    +      -       -      +
    388C  PHE      4.7     0.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 385 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    381C  ALA      3.0    11.8    +      -       -      +
    382C  VAL*     2.8    13.5    +      -       -      +
    384C  ALA*     1.3    78.9    -      -       -      +
    386C  PHE*     1.3    74.0    +      -       +      +
    387C  GLY      3.8     0.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 386 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    382C  VAL*     3.1    43.7    +      -       +      -
    385C  ALA*     1.3    89.5    -      -       +      +
    387C  GLY*     1.3    63.8    +      -       -      +
    388C  PHE*     3.2    23.7    +      +       +      -
    472C  ILE*     3.7    17.0    -      -       +      -
   1105C  HEX      4.0    25.1    -      -       +      -
   1108C  D12      4.1    28.3    -      -       +      +
   1109C  DD9      4.8    24.2    -      -       +      -
----------------------------------------------------------
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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