Contacts of the helix formed by residues 704 - 726 (chain D) in PDB entry 6VVT


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 PRO 704 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    702D  ARG      4.7     0.4    -      -       -      +
    703D  PHE*     1.3    94.4    -      -       +      +
    705D  MET*     1.3    64.9    +      -       -      +
    706D  ILE*     4.4     3.6    -      -       +      +
    707D  VAL*     2.9    31.6    +      -       +      +
    708D  VAL*     3.2     7.3    +      -       -      +
     26E  TYR*     5.4     9.0    -      -       +      -
     38E  ASP*     2.9    38.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with MET 705 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    562D  SER      4.3     8.5    -      -       -      +
    563D  ASN*     3.0    34.5    -      -       -      +
    565D  ILE*     4.2    18.1    -      -       +      +
    566D  LEU*     4.2    18.6    -      -       +      -
    700D  ALA*     5.8     4.5    -      -       +      +
    703D  PHE      3.7     1.3    +      -       -      +
    704D  PRO*     1.3    73.9    -      -       -      +
    706D  ILE*     1.3    51.1    +      -       -      +
    708D  VAL*     2.8    13.4    +      -       +      -
    709D  ALA*     2.3    40.0    +      -       -      +
    983D  ALA      2.9    29.8    -      -       -      +
    984D  THR*     4.0    16.4    -      -       -      +
     37E  ILE*     4.9    11.9    -      -       +      -
     38E  ASP*     4.0     5.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 706 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    562D  SER*     6.0     2.0    -      -       -      +
    563D  ASN*     5.3     3.1    -      -       -      +
    704D  PRO*     3.2     3.9    +      -       +      +
    705D  MET*     1.3    77.1    -      -       -      +
    707D  VAL*     1.3    58.3    +      -       -      +
    709D  ALA*     3.7     6.4    -      -       -      +
    710D  GLN*     3.0    45.1    +      -       +      +
     26E  TYR*     3.7    30.1    -      -       +      -
     29E  PRO*     5.1     5.4    -      -       +      -
     33E  THR*     3.5    28.7    -      -       -      +
     36E  PRO*     3.1    44.9    -      -       +      -
     37E  ILE*     4.5    14.3    -      -       +      +
     38E  ASP*     4.4     3.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 707 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    677D  PRO*     3.6    24.7    -      -       +      -
    699D  LEU*     5.9     1.1    -      -       +      -
    703D  PHE*     3.6    32.1    -      -       +      -
    704D  PRO*     2.9    29.8    +      -       +      +
    706D  ILE*     1.3    77.3    -      -       -      +
    708D  VAL*     1.3    54.9    +      -       +      +
    710D  GLN*     3.6     4.0    +      -       -      +
    711D  THR*     2.7    37.4    +      -       -      +
     25E  ALA      4.0    13.0    -      -       -      +
     26E  TYR*     3.6    26.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 708 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    565D  ILE*     4.7    16.2    -      -       +      -
    696D  ILE*     4.5    10.3    -      -       +      -
    699D  LEU*     3.6    32.8    -      -       +      +
    700D  ALA*     3.6    33.4    -      -       +      +
    703D  PHE*     4.1     4.5    -      -       +      +
    704D  PRO      3.2    12.3    +      -       -      +
    705D  MET*     2.8    20.9    +      -       +      +
    707D  VAL*     1.3    71.1    -      -       -      +
    709D  ALA*     1.3    65.2    +      -       -      +
    711D  THR*     3.2     1.1    +      -       -      -
    712D  VAL*     2.9    42.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 709 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    438D  LEU*     4.4    16.3    -      -       +      +
    562D  SER*     4.0    33.9    -      -       -      +
    565D  ILE*     5.0     4.2    -      -       -      +
    705D  MET      2.3    29.6    +      -       -      +
    706D  ILE*     3.7     9.2    -      -       +      +
    708D  VAL*     1.3    69.5    -      -       -      +
    710D  GLN*     1.3    64.0    +      -       +      +
    712D  VAL*     3.4     4.6    +      -       -      +
    713D  ASP*     3.1    24.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 710 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    706D  ILE*     3.0    32.3    +      -       +      +
    707D  VAL*     4.1     3.7    -      -       -      +
    709D  ALA*     1.3    77.1    -      -       +      +
    711D  THR*     1.3    57.2    +      -       -      +
    713D  ASP*     3.3     7.8    +      -       -      +
    714D  LYS*     3.0    39.8    +      -       -      +
     26E  TYR*     2.6    35.5    +      -       -      +
     27E  ASP*     3.1    24.7    -      -       -      +
     28E  THR      3.6    21.0    +      -       -      -
     29E  PRO*     4.7     2.8    -      -       -      +
     30E  LEU*     5.6     1.4    -      -       -      +
     33E  THR*     6.1     0.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 711 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    675D  LEU      4.4     9.3    +      -       -      +
    676D  LEU*     4.2    24.0    -      -       +      -
    677D  PRO*     3.8    23.7    -      -       +      +
    696D  ILE*     6.2     0.9    -      -       +      -
    699D  LEU*     4.6    19.7    -      -       +      +
    707D  VAL*     2.7    24.5    +      -       -      +
    708D  VAL*     3.7     7.2    -      -       -      -
    710D  GLN*     1.3    78.3    -      -       -      +
    712D  VAL*     1.3    62.2    +      -       +      +
    714D  LYS*     3.4     3.9    +      -       -      +
    715D  LEU*     3.1    40.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 712 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    438D  LEU*     5.5     2.0    -      -       +      -
    527D  LEU*     3.2    17.7    -      -       +      +
    565D  ILE*     5.1     4.0    -      -       +      -
    575D  ALA*     2.9    38.8    -      -       +      +
    577D  PRO*     4.3     9.9    -      -       +      -
    581D  MET*     4.7     0.7    -      -       -      +
    696D  ILE*     4.5    20.6    -      -       +      -
    699D  LEU*     5.9     0.2    -      -       +      -
    708D  VAL*     2.9    31.7    +      -       +      +
    709D  ALA*     3.9     4.9    -      -       -      +
    711D  THR*     1.3    75.3    -      -       +      +
    713D  ASP*     1.3    66.5    +      -       -      +
    715D  LEU*     3.3     8.0    +      -       -      +
    716D  LYS*     3.0    21.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 713 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    437D  LYS*     3.7     8.4    -      -       -      +
    438D  LEU*     2.9    35.0    +      -       -      +
    525D  HIS*     3.1    10.9    +      -       -      -
    527D  LEU*     4.5     2.4    -      -       -      +
    709D  ALA      3.1    11.8    +      -       -      +
    710D  GLN*     3.3    11.3    +      -       -      +
    712D  VAL*     1.3    78.3    -      -       -      +
    714D  LYS*     1.3    63.1    +      -       +      +
    716D  LYS*     2.7    46.6    +      -       -      +
    717D  ASP*     3.2    20.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 714 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    674D  GLU      5.0     4.2    +      -       -      -
    675D  LEU*     3.6    47.2    +      -       +      +
    676D  LEU      5.6     0.6    +      -       -      -
    710D  GLN*     3.0    28.2    +      -       -      +
    711D  THR*     3.8     4.7    -      -       -      +
    713D  ASP*     1.3    74.9    -      -       +      +
    715D  LEU*     1.3    63.5    +      -       -      +
    717D  ASP*     3.3    13.3    +      -       -      +
    718D  ALA*     3.1    22.9    +      -       -      +
     27E  ASP*     2.9    30.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 715 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    577D  PRO*     3.9    23.8    -      -       +      -
    581D  MET*     4.5     2.7    -      -       -      +
    585D  LEU*     4.0    13.0    -      -       +      +
    672D  PHE*     3.7    35.7    -      -       +      -
    675D  LEU*     3.9    25.6    -      -       +      -
    676D  LEU*     4.6     5.8    -      -       +      -
    692D  GLN*     4.9     5.2    -      -       +      +
    695D  ILE*     6.4     1.6    -      -       +      -
    696D  ILE*     4.5    17.7    -      -       +      -
    699D  LEU*     6.3     0.9    -      -       +      -
    711D  THR*     3.1    25.3    +      -       +      +
    712D  VAL*     3.6    10.8    -      -       -      +
    713D  ASP      3.2     0.2    -      -       -      -
    714D  LYS*     1.3    75.0    -      -       -      +
    716D  LYS*     1.3    52.9    +      -       -      +
    718D  ALA*     4.0     0.2    -      -       -      +
    719D  GLY*     2.7    33.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 716 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    434D  PRO      3.2    20.1    +      -       -      +
    435D  GLN      4.5     1.4    -      -       -      -
    436D  LEU      2.6    31.9    +      -       -      +
    525D  HIS*     3.2     9.9    +      -       +      -
    526D  PRO*     3.6    19.3    -      -       +      -
    527D  LEU*     4.6     1.8    -      -       +      -
    581D  MET*     3.2    27.9    -      -       +      +
    712D  VAL      3.0    11.5    +      -       -      +
    713D  ASP*     2.7    25.5    +      -       -      +
    715D  LEU*     1.3    75.9    -      -       -      +
    717D  ASP*     1.3    84.1    +      -       -      +
    719D  GLY      3.8     0.2    -      -       -      -
    720D  PHE*     2.9    49.9    +      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 717 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    177B  LYS*     5.2     9.5    +      -       -      -
    434D  PRO      4.4     3.3    -      -       -      +
    435D  GLN*     5.8     0.5    -      -       -      -
    713D  ASP*     3.2    13.3    +      -       -      +
    714D  LYS*     3.3    12.6    +      -       -      +
    716D  LYS*     1.3    99.1    +      -       -      +
    718D  ALA*     1.3    57.5    +      -       -      +
    720D  PHE*     3.8     4.6    -      -       -      +
    721D  TYR*     2.8    33.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 718 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    585D  LEU*     3.7    13.2    -      -       +      -
    588D  LEU*     5.2     2.5    -      -       +      -
    675D  LEU*     3.4    34.5    -      -       +      -
    714D  LYS      3.1     5.9    +      -       -      +
    715D  LEU      4.0     0.7    -      -       -      +
    717D  ASP*     1.3    78.3    -      -       -      +
    719D  GLY*     1.3    64.2    +      -       -      +
    721D  TYR*     4.4     2.9    -      -       -      -
    722D  TRP*     2.9    43.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 719 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    581D  MET*     3.5    30.5    -      -       -      -
    584D  GLY*     3.2     4.0    -      -       -      -
    585D  LEU*     3.4    10.9    -      -       -      +
    715D  LEU      2.7    21.7    +      -       -      -
    718D  ALA*     1.3    74.2    -      -       -      +
    720D  PHE*     1.3    56.4    +      -       -      +
    723D  ALA*     2.8    31.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 720 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    718C  GLU*     4.2     5.1    -      -       -      +
    719C  GLY*     3.4    38.3    +      -       -      +
    722C  TYR*     3.7    29.8    -      +       -      -
    434D  PRO*     4.2    11.9    -      -       +      -
    526D  PRO*     3.8    21.8    -      -       +      -
    580D  ASP*     3.9    15.7    -      -       +      -
    581D  MET*     3.7    24.6    -      -       +      +
    716D  LYS*     2.9    45.7    +      -       +      +
    717D  ASP*     3.8     4.0    -      -       -      +
    719D  GLY*     1.3    71.8    -      -       -      +
    721D  TYR*     1.3    67.4    +      -       -      +
    723D  ALA*     3.1     9.5    +      -       +      +
    724D  THR*     3.0    22.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 721 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    718C  GLU*     5.2    11.4    -      -       -      +
    717D  ASP      2.8    23.5    +      -       -      +
    718D  ALA*     3.7     5.6    -      -       -      +
    720D  PHE*     1.3    71.7    -      -       -      +
    722D  TRP*     1.3    90.8    +      +       -      +
    724D  THR*     2.9    28.5    +      -       -      -
    725D  ARG*     3.1    53.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with TRP 722 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    584D  GLY*     3.4    23.3    -      -       -      +
    587D  TYR*     4.3    21.5    -      +       +      -
    588D  LEU*     3.5    32.2    -      -       +      +
    622D  MET*     4.7     7.2    -      -       +      -
    629D  VAL*     3.9    33.4    -      -       +      -
    671D  MET*     3.5    28.5    -      -       +      +
    718D  ALA*     2.9    38.3    +      -       +      +
    721D  TYR*     1.3    91.8    -      +       -      +
    723D  ALA*     1.3    59.5    +      -       -      +
    724D  THR      3.1     1.8    -      -       -      -
    725D  ARG*     3.4    24.8    -      -       +      +
    726D  SER*     2.7    30.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 723 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    716C  PRO*     3.3    24.9    -      -       +      +
    580D  ASP*     3.6    33.2    -      -       +      +
    583D  THR*     4.4     3.1    -      -       -      +
    584D  GLY*     3.5     8.0    -      -       -      +
    719D  GLY      2.8    20.7    +      -       -      +
    720D  PHE*     3.1     8.3    +      -       +      +
    722D  TRP*     1.3    77.7    -      -       -      +
    724D  THR*     1.3    61.2    +      -       +      +
    726D  SER*     3.2    17.7    +      -       -      -
    727D  GLY      4.5     0.9    +      -       -      -
    728D  VAL*     4.9     1.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 724 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    715C  MET*     4.8     9.5    -      -       -      +
    716C  PRO*     3.1    21.6    -      -       +      +
    717C  TRP*     4.6     1.6    -      -       -      -
    718C  GLU*     2.9    43.7    -      -       +      +
   1010C  PHE*     4.5    16.5    -      -       -      +
   1011C  PRO*     5.3     0.9    -      -       -      +
    720D  PHE      3.0    15.9    -      -       -      +
    721D  TYR      2.9     9.8    +      -       -      +
    723D  ALA*     1.3    74.1    -      -       +      +
    725D  ARG*     1.3    88.2    +      -       -      +
    726D  SER      3.0     8.0    +      -       -      -
    727D  GLY*     3.7     8.0    +      -       -      -
    728D  VAL      5.3     0.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 725 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    718C  GLU*     3.7    21.1    +      -       -      +
   1003C  ASP*     3.9    19.6    +      -       -      +
   1006C  SER*     4.7     6.9    +      -       -      -
   1010C  PHE*     4.1    18.2    -      -       -      -
   1011C  PRO*     3.3    39.6    -      -       +      +
   1012C  TYR*     3.5     7.4    -      -       -      -
    587D  TYR*     3.9     7.5    +      -       +      -
    721D  TYR*     3.1    66.5    +      -       +      +
    722D  TRP*     3.4    25.0    +      -       +      +
    724D  THR*     1.3    97.2    +      -       -      +
    726D  SER*     1.3    61.6    +      -       -      +
    727D  GLY      3.2     1.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 726 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1012C  TYR*     3.9     7.0    -      -       -      -
    583D  THR*     4.6     5.6    +      -       -      -
    587D  TYR*     3.8    40.7    -      -       -      +
    722D  TRP      2.7    17.1    +      -       -      -
    723D  ALA*     3.2    17.7    -      -       -      -
    724D  THR      3.0     1.4    -      -       -      -
    725D  ARG*     1.3    78.5    -      -       -      +
    727D  GLY*     1.3    60.4    +      -       -      +
    728D  VAL*     3.0    24.5    -      -       -      +
    800D  THR*     5.1     3.3    -      -       -      +
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  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