Contacts of the strand formed by residues 304 - 328 (chain A) in PDB entry 5U2H


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 VAL 304 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115A  GLN*     4.1    26.9    -      -       -      +
    300A  LYS*     3.3     5.8    -      -       -      +
    301A  GLU      2.9    33.9    +      -       -      +
    302A  ASN*     3.2    19.1    -      -       +      +
    303A  ASN*     1.3    79.8    -      -       -      +
    305A  GLU*     1.3    76.7    +      -       -      +
    306A  LYS*     3.4     4.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 305 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115A  GLN*     3.8    12.8    -      -       -      +
    116A  GLN      5.1     1.2    +      -       -      -
    167A  TRP*     5.5    11.1    -      -       +      -
    298A  TYR*     4.5    16.2    -      -       +      +
    299A  TYR      4.4     3.6    -      -       -      -
    300A  LYS*     4.6    10.5    -      -       -      +
    304A  VAL*     1.3    84.2    -      -       -      +
    306A  LYS*     1.3    66.2    +      -       -      +
    403A  7S1      5.0    15.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 306 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113A  GLY*     5.2     3.8    -      -       -      +
    114A  GLN      3.6    10.8    -      -       -      +
    115A  GLN*     4.6     4.3    -      -       +      +
    167A  TRP*     5.1     1.1    -      -       -      -
    298A  TYR*     3.4     7.6    -      -       -      +
    299A  TYR*     2.8    62.8    +      -       +      +
    301A  GLU*     5.0     3.8    -      -       +      +
    304A  VAL*     4.3     5.6    -      -       +      +
    305A  GLU*     1.3    79.4    -      -       -      +
    307A  ARG*     1.3    61.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 307 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113A  GLY      4.0     0.7    -      -       -      -
    114A  GLN*     2.8    40.5    +      -       +      +
    167A  TRP*     3.7    28.0    -      -       +      -
    296A  ALA*     5.1     1.3    -      -       +      -
    297A  LYS      3.7     5.6    -      -       -      -
    298A  TYR*     3.3    31.0    -      -       +      -
    299A  TYR*     4.7     2.5    -      -       -      +
    306A  LYS*     1.3    73.3    -      -       -      +
    308A  THR*     1.3    64.5    +      -       -      +
    309A  LEU*     6.0     2.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 308 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    111A  THR      3.1    21.5    -      -       -      +
    112A  GLU*     3.9    21.9    -      -       +      +
    295A  TYR      3.9     0.5    -      -       -      +
    296A  ALA*     3.0     8.9    -      -       -      -
    297A  LYS*     2.9    42.9    +      -       +      +
    299A  TYR*     3.1    25.3    +      -       -      -
    307A  ARG*     1.3    71.7    +      -       -      +
    309A  LEU*     1.3    58.6    +      -       -      +
    310A  ILE*     4.1    22.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 309 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109A  ILE      4.3     0.3    -      -       -      +
    111A  THR*     3.0    40.6    +      -       -      +
    114A  GLN*     3.3    33.5    +      -       -      +
    167A  TRP*     5.5    13.5    -      -       +      +
    171A  GLU*     3.8    28.9    -      -       +      +
    294A  ARG*     4.1    31.0    -      -       +      +
    295A  TYR      4.0     0.4    -      -       -      -
    296A  ALA*     3.6    25.1    -      -       +      +
    307A  ARG*     4.1     4.6    +      -       +      -
    308A  THR*     1.3    71.1    -      -       -      +
    310A  ILE*     1.3    61.7    +      -       -      +
    311A  LYS      4.2     0.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 310 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105A  MET*     5.5     2.2    -      -       +      -
    108A  PHE*     4.5    13.5    -      -       +      -
    109A  ILE      3.5    10.1    -      -       -      +
    110A  LYS*     4.4    15.7    -      -       +      -
    171A  GLU*     5.7     0.2    -      -       -      -
    293A  PHE      3.5     1.6    -      -       -      +
    294A  ARG*     3.6     2.3    -      -       -      -
    295A  TYR*     2.9    47.5    +      -       +      +
    297A  LYS*     6.3     2.9    -      -       +      -
    308A  THR*     4.1    19.5    -      -       +      +
    309A  LEU*     1.3    80.2    -      -       -      +
    311A  LYS*     1.3    64.2    -      -       -      +
    312A  VAL*     3.5    21.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 311 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108A  PHE*     3.3     5.2    -      -       -      +
    109A  ILE*     2.9    50.1    +      -       +      +
    171A  GLU*     3.5    28.5    +      -       -      +
    174A  LYS      5.8     0.7    -      -       -      +
    288A  TYR*     4.7    12.7    +      -       +      -
    292A  ASN*     4.2    15.5    -      -       +      +
    293A  PHE*     3.7     7.7    -      -       -      +
    294A  ARG*     3.4    36.5    -      -       +      +
    309A  LEU      4.2     0.4    -      -       -      -
    310A  ILE*     1.3    70.1    -      -       -      +
    312A  VAL*     1.3    59.9    +      -       -      +
    313A  PHE*     3.3    39.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 312 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103A  PHE*     3.7    28.9    -      -       +      -
    105A  MET*     3.5    33.2    -      -       +      -
    107A  ASN      4.1     2.2    -      -       -      -
    108A  PHE*     4.6     0.2    -      -       -      +
    292A  ASN*     2.6    34.8    -      -       -      -
    293A  PHE*     2.9    35.5    +      -       +      +
    295A  TYR*     4.3     9.0    -      -       +      -
    310A  ILE*     3.7    29.4    -      -       +      +
    311A  LYS*     1.3    72.4    -      -       -      +
    313A  PHE*     1.3    56.2    -      -       -      +
    314A  GLY      4.2     0.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 313 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105A  MET*     3.9     2.1    -      -       -      +
    106A  THR*     3.0     5.2    +      -       -      -
    107A  ASN*     2.7    58.7    +      -       +      +
    108A  PHE*     4.0     0.7    -      -       -      -
    109A  ILE*     3.7    27.8    -      -       +      -
    174A  LYS      5.4     1.8    -      -       -      -
    176A  ALA*     5.0    12.8    -      -       +      -
    247A  ILE      4.0    14.4    -      -       -      +
    248A  GLN*     3.7    22.9    -      -       -      +
    249A  GLY      4.5     0.4    -      -       -      +
    291A  TYR      3.1     6.7    -      -       -      +
    292A  ASN*     3.3    35.4    -      -       +      -
    311A  LYS*     3.3    40.2    -      -       +      -
    312A  VAL*     1.3    74.6    -      -       -      +
    314A  GLY*     1.3    57.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 314 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103A  PHE*     3.4    17.5    -      -       -      -
    104A  VAL      3.3    12.6    -      -       -      -
    106A  THR*     3.7    10.3    -      -       -      -
    249A  GLY*     3.4     1.6    -      -       -      -
    250A  GLY      2.9    19.5    +      -       -      -
    291A  TYR*     2.9    20.0    +      -       -      +
    313A  PHE*     1.3    75.4    -      -       -      +
    315A  ILE*     1.3    64.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 315 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103A  PHE*     3.9     1.6    -      -       -      -
    104A  VAL*     2.8    34.2    +      -       +      +
    106A  THR*     3.7    20.2    -      -       +      +
    231A  LEU*     6.3     0.4    -      -       +      -
    235A  PHE*     3.4    41.7    -      -       +      -
    242A  PHE*     4.0    11.4    -      -       +      -
    245A  VAL*     4.2    10.3    -      -       +      -
    246A  ALA*     4.9     4.0    -      -       -      -
    249A  GLY*     4.6     1.1    -      -       -      -
    250A  GLY*     2.6    29.4    -      -       -      +
    252A  MET*     3.9    12.3    -      -       +      +
    314A  GLY*     1.3    74.8    -      -       -      -
    316A  ARG*     1.3    60.7    +      -       -      +
    317A  PHE*     3.6    29.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 316 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102A  PHE      3.5     8.3    -      -       -      +
    103A  PHE*     4.0     8.5    -      -       +      +
    250A  GLY      2.9     7.1    +      -       -      -
    251A  ILE*     3.4    14.3    -      -       +      +
    252A  MET      2.8    30.1    +      -       -      +
    291A  TYR*     3.9    37.5    -      -       +      +
    315A  ILE*     1.3    73.6    -      -       -      +
    317A  PHE*     1.3    55.7    +      -       -      +
    318A  ASP*     4.0     6.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 317 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101A  SER*     3.0     5.5    -      -       -      -
    102A  PHE*     2.7    76.3    +      +       +      -
    104A  VAL*     4.5    10.1    -      -       +      -
    231A  LEU*     3.9    27.6    -      -       +      -
    234A  ILE*     4.1    23.8    -      -       +      -
    235A  PHE*     4.8     8.3    -      +       -      -
    252A  MET*     2.6    29.2    -      -       +      +
    253A  GLY*     5.1     0.2    -      -       -      -
    254A  ILE*     4.5    17.9    -      -       +      -
    315A  ILE*     3.6    37.9    -      -       +      -
    316A  ARG*     1.3    69.6    -      -       -      +
    318A  ASP*     1.3    64.8    +      -       -      +
    319A  ILE*     4.0     0.8    +      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 318 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100A  ASN      4.9     0.2    -      -       -      +
    101A  SER*     3.2    20.5    +      -       -      -
    251A  ILE*     4.6    13.2    -      -       -      +
    252A  MET      2.9     8.7    +      -       -      -
    253A  GLY*     3.1     8.2    -      -       -      -
    254A  ILE      2.9    23.7    +      -       -      -
    316A  ARG*     4.0    13.8    -      -       -      +
    317A  PHE*     1.3    76.9    -      -       -      +
    319A  ILE*     1.3    63.5    +      -       -      +
    320A  LEU*     3.5    20.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 319 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61A  VAL*     3.4    35.2    -      -       +      -
     63A  THR*     3.2    35.2    -      -       +      -
     97A  LEU*     5.0     1.3    -      -       +      -
    100A  ASN*     3.0    33.7    +      -       -      +
    102A  PHE*     4.1    17.0    -      -       +      -
    192A  ILE*     4.3    12.6    -      -       +      -
    254A  ILE*     3.6    21.5    -      -       +      +
    256A  ILE*     4.9    11.2    -      -       +      -
    317A  PHE*     4.0     1.3    +      -       +      +
    318A  ASP*     1.3    70.8    -      -       -      +
    320A  LEU*     1.3    67.9    +      -       -      +
    321A  VAL*     4.2    10.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 320 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    253A  GLY*     5.8     3.6    -      -       -      -
    254A  ILE      2.9    12.5    +      -       -      +
    255A  GLU*     4.3    14.4    -      -       +      -
    256A  ILE*     2.9    31.5    +      -       -      +
    318A  ASP*     3.9    23.6    -      -       +      +
    319A  ILE*     1.3    80.8    -      -       -      +
    321A  VAL*     1.3    62.6    +      -       -      +
    322A  PHE*     4.1     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 321 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57A  LEU*     4.6    16.6    -      -       +      +
     59A  SER*     3.0    41.2    +      -       -      +
     61A  VAL*     4.0    20.6    -      -       +      -
    100A  ASN*     5.8     1.1    -      -       -      +
    194A  ASN*     5.2     4.7    -      -       +      -
    196A  ILE*     6.2     0.4    -      -       +      -
    256A  ILE*     3.8    11.9    -      -       +      -
    258A  TRP*     3.7    26.0    -      -       +      +
    319A  ILE*     4.2     8.0    +      -       +      +
    320A  LEU*     1.3    79.4    -      -       -      +
    322A  PHE*     1.3    61.5    +      -       -      +
    323A  GLY      4.4     0.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 322 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    256A  ILE      2.9    16.8    +      -       -      +
    257A  TYR*     3.1     5.4    -      -       +      +
    258A  TRP*     2.9    23.4    +      -       -      -
    320A  LEU*     4.1     1.7    -      -       +      -
    321A  VAL*     1.3    74.6    -      -       -      +
    323A  GLY*     1.3    58.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 323 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55A  GLU      4.1     5.6    -      -       -      +
     56A  PRO*     4.1    10.2    -      -       -      +
     57A  LEU*     4.3    22.3    +      -       -      +
    258A  TRP*     3.4    23.5    -      -       -      -
    321A  VAL      4.3     0.6    -      -       -      -
    322A  PHE*     1.3    74.8    -      -       -      +
    324A  THR*     1.3    66.5    +      -       -      -
    325A  GLY      4.3     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 324 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54A  LYS*     4.5    14.6    -      -       +      -
     55A  GLU      3.7     4.3    -      -       -      +
     57A  LEU*     5.3     0.8    -      -       -      +
    258A  TRP*     2.9    13.3    +      -       -      +
    259A  ASP*     5.2     2.7    -      -       -      -
    260A  CYS*     2.7    38.2    +      -       -      +
    323A  GLY*     1.3    76.0    +      -       -      -
    325A  GLY*     1.3    62.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 325 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53A  LYS      2.6    17.2    -      -       -      +
     54A  LYS*     2.7    21.1    -      -       -      +
     55A  GLU*     2.9    22.1    +      -       -      -
     56A  PRO      5.8     0.7    -      -       -      -
    260A  CYS*     3.8     7.2    -      -       -      -
    323A  GLY      4.3     0.2    -      -       -      -
    324A  THR*     1.3    76.7    -      -       -      +
    326A  GLY*     1.3    52.1    +      -       -      -
    327A  LYS      4.2     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 326 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52A  GLN*     3.6    20.1    -      -       -      +
     53A  LYS      2.3    24.2    -      -       -      -
     54A  LYS*     4.5     0.4    -      -       -      -
    260A  CYS      3.7     8.6    +      -       -      -
    261A  ASN*     3.4     4.8    -      -       -      -
    262A  LEU*     2.4    37.4    +      -       -      +
    263A  ASP      3.6     2.3    +      -       -      -
    325A  GLY*     1.3    64.7    -      -       -      -
    327A  LYS*     1.3    53.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 327 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53A  LYS*     2.9    35.2    +      -       +      +
    200A  GLY      6.6     0.4    -      -       -      -
    201A  HIS*     6.6     0.2    -      -       -      -
    262A  LEU*     3.5    19.5    -      -       +      +
    325A  GLY      4.2     0.4    -      -       -      -
    326A  GLY*     1.3    71.0    -      -       -      +
    328A  PHE*     1.3    68.8    +      -       -      +
    329A  ASN*     3.3     1.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 328 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51A  TYR*     3.6    31.4    -      -       +      +
     52A  GLN*     3.7     5.9    -      -       -      +
    262A  LEU      5.1     0.8    -      -       -      -
    263A  ASP*     5.1    11.7    -      -       +      +
    326A  GLY      3.9     2.2    +      -       -      -
    327A  LYS*     1.3    73.6    -      -       -      +
    329A  ASN*     1.3    58.8    +      -       -      +
----------------------------------------------------------
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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) +   -    +    +   +   +    +    -
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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