Contacts of the helix formed by residues 949 - 972 (chain F) in PDB entry 5F28


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 GLU 949 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    941E  LYS*     3.1    32.9    +      -       -      +
    946F  PRO*     2.9    41.6    +      -       +      +
    947F  PRO      3.1     1.0    +      -       -      -
    948F  GLU*     1.3    72.4    -      -       -      +
    950F  TYR*     1.3    62.8    +      -       -      +
    951F  VAL      3.1     2.5    -      -       -      -
    952F  PRO*     3.2    22.9    -      -       +      +
    953F  MET*     3.2    17.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 950 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    938E  MET*     6.2     0.2    -      -       +      -
    942E  ILE*     3.7    22.5    -      -       +      +
    945F  ALA*     3.0    45.8    +      -       +      +
    946F  PRO      4.2     1.6    -      -       -      -
    947F  PRO*     3.8    25.7    -      -       +      +
    948F  GLU      3.2     4.0    -      -       -      +
    949F  GLU*     1.3    77.5    -      -       -      +
    951F  VAL*     1.3    64.8    +      -       +      +
    953F  MET*     2.9    32.2    +      -       +      +
    954F  VAL*     3.0    13.7    +      -       +      +
   1001F  MET*     3.7    22.2    -      -       +      -
   1004F  ALA*     4.0     9.6    -      -       +      -
   1005F  GLN*     5.0     0.4    -      -       +      -
   1017F  LYS*     3.3    28.2    -      -       +      +
   1020F  MET*     3.6    35.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 951 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61B  ASP*     4.6     1.1    -      -       -      +
     63B  ASP*     3.8    32.3    -      -       +      +
     64B  LYS*     4.0    27.6    -      -       +      +
     67B  LEU*     4.4    10.8    -      -       +      +
    948F  GLU*     3.6    14.4    -      -       -      +
    950F  TYR*     1.3    76.2    -      -       -      +
    952F  PRO*     1.3    70.9    -      -       +      +
    954F  VAL*     3.5     1.9    +      -       -      +
    955F  LYS*     3.0    21.7    +      -       -      +
   1001F  MET*     4.0    18.4    -      -       +      -
   1005F  GLN*     3.6    24.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 952 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63B  ASP*     3.3    28.7    -      -       -      +
    948F  GLU      4.2     3.1    -      -       -      +
    949F  GLU*     3.2    23.3    -      -       +      +
    951F  VAL*     1.3    94.7    -      -       +      +
    953F  MET*     1.3    61.8    -      -       +      +
    955F  LYS*     3.4    13.9    +      -       +      +
    956F  GLU*     3.1    32.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 953 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    934E  ALA      5.0     0.7    -      -       -      +
    937E  GLU*     4.9     2.2    -      -       +      +
    938E  MET*     3.8    34.4    -      -       +      +
    941E  LYS*     3.5    53.6    -      -       +      +
    942E  ILE*     5.0     0.2    -      -       -      -
    945F  ALA*     5.5     2.2    -      -       +      -
    949F  GLU*     3.2    32.1    -      -       +      +
    950F  TYR*     2.9    30.2    +      -       +      +
    952F  PRO*     1.3    80.9    -      -       +      +
    954F  VAL*     1.3    62.0    +      -       -      +
    956F  GLU*     3.4     7.9    +      -       -      +
    957F  VAL*     3.3    24.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 954 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67B  LEU*     3.7    21.4    -      -       +      +
    938E  MET*     3.7    23.1    -      -       +      -
    950F  TYR*     3.0    11.0    +      -       +      +
    951F  VAL      4.1     1.1    -      -       -      +
    953F  MET*     1.3    72.6    -      -       -      +
    955F  LYS*     1.3    65.5    +      -       -      +
    957F  VAL*     3.2     9.2    +      -       -      +
    958F  GLY*     3.0    18.0    +      -       -      -
    994F  LEU*     4.7     2.6    -      -       +      +
    997F  LEU*     4.0    20.4    -      -       +      -
    998F  ILE*     4.1    15.9    -      -       +      -
   1001F  MET*     3.7    32.5    -      -       +      -
   1020F  MET*     4.2     7.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 955 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69A  TYR*     4.1    20.8    +      -       -      -
     63B  ASP*     2.9    32.3    +      -       -      +
     66B  LEU*     3.6    37.7    -      -       +      +
     67B  LEU*     3.8    24.6    -      -       +      +
     70B  THR*     4.4     1.0    -      -       -      +
    951F  VAL      3.0    18.5    +      -       -      +
    952F  PRO*     3.5    18.8    -      -       +      +
    953F  MET      3.2     0.2    -      -       -      -
    954F  VAL*     1.3    77.5    -      -       -      +
    956F  GLU*     1.3    72.5    +      -       -      +
    958F  GLY*     2.9     4.0    +      -       -      -
    959F  LEU*     2.8    41.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 956 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70A  THR*     5.1    14.2    -      -       +      +
     73A  ASN*     5.8     0.3    -      -       -      +
    934E  ALA*     3.9    12.9    -      -       +      +
    937E  GLU*     5.4     8.0    -      -       -      +
    952F  PRO*     3.1    19.1    +      -       -      +
    953F  MET*     3.8     8.0    -      -       -      +
    954F  VAL      3.3     0.2    -      -       -      -
    955F  LYS*     1.3    93.2    +      -       -      +
    957F  VAL*     1.3    62.0    +      -       -      +
    959F  LEU*     3.8    11.0    -      -       +      +
    960F  ALA*     3.1    25.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 957 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    931E  LEU*     3.6    10.2    -      -       +      +
    934E  ALA*     3.8    33.4    -      -       +      +
    935E  VAL*     4.0    15.9    -      -       +      +
    938E  MET*     4.4    11.9    -      -       +      -
    953F  MET      3.3    14.6    +      -       -      +
    954F  VAL*     3.2    13.6    +      -       -      +
    955F  LYS      3.1     0.6    -      -       -      -
    956F  GLU*     1.3    78.7    -      -       -      +
    958F  GLY*     1.3    57.3    +      -       -      +
    961F  LEU*     3.0    27.2    +      -       +      +
    994F  LEU*     4.4     6.3    -      -       +      -
    997F  LEU*     4.2     8.7    -      -       +      -
   1027F  LEU*     4.1    27.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 958 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70B  THR*     3.6    18.4    -      -       -      -
    954F  VAL      3.0     9.6    +      -       -      -
    955F  LYS      2.9     7.1    +      -       -      -
    957F  VAL*     1.3    77.8    -      -       -      +
    959F  LEU*     1.3    61.5    +      -       -      +
    961F  LEU*     3.4     3.8    +      -       -      +
    962F  ARG*     3.1    21.8    +      -       -      +
    994F  LEU*     3.8    28.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 959 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66A  LEU*     4.7    26.2    -      -       +      -
     69A  TYR*     5.1     5.4    -      -       +      -
     70A  THR*     3.6    33.0    -      -       +      -
     66B  LEU*     4.9    13.9    -      -       +      +
     69B  TYR*     5.0     4.3    -      -       +      -
     70B  THR*     3.7    19.7    -      -       +      -
    955F  LYS*     2.8    48.3    +      -       +      +
    956F  GLU*     4.0     8.7    -      -       +      +
    957F  VAL      3.3     0.2    -      -       -      -
    958F  GLY*     1.3    70.4    -      -       -      +
    960F  ALA*     1.3    65.7    +      -       -      +
    962F  ARG*     3.0    17.8    +      -       +      +
    963F  THR*     3.3    17.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 960 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70A  THR*     5.8     0.2    -      -       -      +
    927E  ASN*     4.5     3.1    -      -       -      +
    930E  GLY      3.9    23.3    -      -       -      +
    931E  LEU*     4.0    17.0    -      -       +      +
    934E  ALA*     4.4     4.7    -      -       +      -
    956F  GLU      3.1    18.5    +      -       -      +
    957F  VAL      4.0     2.7    -      -       -      +
    959F  LEU*     1.3    76.2    -      -       -      +
    961F  LEU*     1.3    59.5    +      -       -      +
    963F  THR*     3.2    17.5    +      -       -      -
    964F  LEU*     3.6    12.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 961 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    931E  LEU*     3.7    28.2    -      -       +      +
    957F  VAL*     3.0    17.9    +      -       +      +
    958F  GLY      3.6     5.6    -      -       -      +
    959F  LEU      3.1     0.4    -      -       -      -
    960F  ALA*     1.3    75.5    -      -       -      +
    962F  ARG*     1.3    64.8    +      -       -      +
    964F  LEU*     3.3     5.1    +      -       +      +
    965F  LEU*     3.0    40.0    +      -       +      +
    990F  LEU*     3.8    43.5    -      -       +      +
    991F  ASN*     4.4     8.5    -      -       -      +
    994F  LEU*     3.8    29.6    -      -       +      -
   1027F  LEU*     4.8     6.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 962 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54A  LEU*     5.9     0.6    -      -       -      +
     63A  ASP*     5.8     4.3    -      -       -      +
     69B  TYR*     3.7    41.6    +      -       -      -
     70B  THR*     3.4    32.4    +      -       -      +
     72B  TYR*     2.0    38.0    +      -       -      +
     73B  ASN*     3.9    10.5    +      -       -      +
     74B  GLU      4.5     2.6    +      -       -      +
     76B  HIS*     5.3     8.9    -      -       -      -
    958F  GLY      3.1     7.5    +      -       -      +
    959F  LEU*     3.0    13.5    +      -       +      +
    961F  LEU*     1.3    77.6    -      -       -      +
    963F  THR*     1.3    65.2    +      -       +      +
    965F  LEU*     3.2     9.3    +      -       +      +
    966F  ALA*     2.9    25.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 963 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63A  ASP*     4.9    22.9    -      -       +      +
     66A  LEU*     6.5     0.7    -      -       +      -
     67A  LEU*     4.9    20.4    -      -       +      +
    927E  ASN*     4.1    14.1    +      -       -      -
    959F  LEU      3.3    11.4    +      -       -      +
    960F  ALA*     3.2    15.8    +      -       -      -
    962F  ARG*     1.3    75.9    -      -       +      +
    964F  LEU*     1.3    53.9    +      -       -      +
    966F  ALA*     3.9     5.6    -      -       -      +
    967F  THR*     2.7    38.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 964 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    924E  VAL*     4.1     8.7    -      -       +      +
    927E  ASN*     3.6    29.1    +      -       +      +
    928E  VAL*     3.7    33.4    -      -       +      +
    931E  LEU*     3.7    26.9    -      -       +      -
    960F  ALA      3.6    10.3    +      -       -      +
    961F  LEU*     3.3     9.8    +      -       +      +
    962F  ARG      3.1     0.6    -      -       -      -
    963F  THR*     1.3    81.6    +      -       -      +
    965F  LEU*     1.3    58.8    +      -       +      +
    967F  THR*     3.2     3.9    +      -       -      -
    968F  VAL*     2.9    45.0    +      -       +      +
    990F  LEU*     4.4     7.4    -      -       +      -
   1031F  ALA*     5.0     0.9    -      -       +      -
   1034F  LEU*     4.1    19.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 965 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73B  ASN*     5.1     2.5    -      -       -      +
    961F  LEU*     3.0    39.4    +      -       +      +
    962F  ARG*     3.8     7.2    -      -       +      +
    964F  LEU*     1.3    77.6    -      -       +      +
    966F  ALA*     1.3    58.0    +      -       -      +
    968F  VAL*     3.2     3.9    +      -       +      +
    969F  ASP*     2.8    36.4    +      -       -      +
    987F  GLN*     3.7    41.4    +      -       +      +
    990F  LEU*     4.6     8.1    -      -       +      -
    991F  ASN*     3.2    33.9    -      -       -      +
   1034F  LEU*     4.7     6.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 966 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63A  ASP*     4.0    23.8    -      -       -      +
    962F  ARG*     2.9    17.4    +      -       +      +
    963F  THR*     4.0     6.7    -      -       -      +
    965F  LEU*     1.3    73.4    -      -       -      +
    967F  THR*     1.3    64.2    +      -       -      +
    969F  ASP*     3.4    10.8    +      -       -      +
    970F  GLU*     3.3    24.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 967 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    923E  LYS*     3.7    32.6    +      -       +      -
    924E  VAL*     4.1    21.8    -      -       +      +
    927E  ASN*     2.6    28.1    +      -       +      +
    963F  THR*     2.7    20.2    +      -       -      -
    964F  LEU*     3.2     5.8    +      -       +      -
    966F  ALA*     1.3    76.6    -      -       -      +
    968F  VAL*     1.3    56.8    +      -       +      +
    970F  GLU*     3.3    17.2    +      -       -      +
    971F  THR*     2.6    36.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 968 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    924E  VAL*     4.5     6.3    -      -       +      -
    964F  LEU*     2.9    33.5    +      -       +      +
    965F  LEU*     3.2     7.6    +      -       +      +
    967F  THR*     1.3    73.9    -      -       -      +
    969F  ASP*     1.3    62.0    +      -       -      +
    971F  THR*     2.9     7.4    +      -       -      -
    972F  ILE*     2.8    48.3    +      -       +      +
    983F  ILE*     3.9    14.8    -      -       +      -
    987F  GLN*     3.4    22.4    -      -       +      +
   1034F  LEU*     4.4     9.4    -      -       +      -
   1038F  ILE*     3.9    23.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 969 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    965F  LEU*     2.8    21.8    +      -       -      +
    966F  ALA*     3.7    10.1    -      -       -      +
    967F  THR      3.3     0.2    -      -       -      -
    968F  VAL*     1.3    77.8    -      -       -      +
    970F  GLU*     1.3    59.7    +      -       -      +
    972F  ILE*     4.4     7.6    -      -       -      +
    973F  PRO*     3.5    17.5    -      -       -      +
    987F  GLN*     3.1    24.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 970 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    923E  LYS*     5.3     5.5    +      -       -      +
    966F  ALA      3.3    10.2    +      -       -      +
    967F  THR*     3.3    27.6    +      -       -      +
    969F  ASP*     1.3    78.1    -      -       -      +
    971F  THR*     1.3    62.0    +      -       -      +
    973F  PRO*     4.0     8.6    -      -       -      +
    974F  ALA*     5.3     2.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 971 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    923E  LYS*     6.0     0.3    -      -       -      +
    924E  VAL*     4.6    15.2    -      -       +      +
    967F  THR*     2.6    29.6    +      -       -      +
    968F  VAL*     2.9     9.7    +      -       -      -
    970F  GLU*     1.3    81.8    -      -       -      +
    972F  ILE*     1.3    67.2    +      -       +      +
    973F  PRO*     3.4     0.9    -      -       -      -
    974F  ALA*     3.1    22.4    +      -       +      +
    975F  LEU*     3.9    21.3    +      -       +      +
   1038F  ILE*     5.6     4.0    -      -       +      -
   1042F  ARG*     5.5     7.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 972 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    968F  VAL*     2.8    41.4    +      -       +      +
    969F  ASP*     4.4     7.2    -      -       -      +
    971F  THR*     1.3    75.0    -      -       -      +
    973F  PRO*     1.3    66.2    -      -       +      +
    975F  LEU*     2.8    38.2    +      -       +      +
    980F  HIS*     3.5    34.8    +      -       +      +
    983F  ILE*     3.9    24.0    -      -       +      -
    984F  GLU*     4.3    17.3    -      -       +      +
    987F  GLN*     4.0    15.5    -      -       -      +
----------------------------------------------------------
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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