Contacts of the helix formed by residues 237 - 260 (chain A) in PDB entry 1N0W


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 237 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238A  LEU*     1.3    69.0    +      -       -      +
    239A  SER*     3.3    11.8    +      -       -      +
    240A  ALA*     3.1    16.9    +      -       -      +
    241A  ARG*     2.9    61.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 238 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    237A  GLU*     1.3    80.4    -      -       -      +
    239A  SER*     1.3    59.0    +      -       -      +
    241A  ARG*     3.2    13.4    +      -       +      +
    242A  GLN*     3.0    55.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 239 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    237A  GLU      4.3     8.0    +      -       -      +
    238A  LEU*     1.3    80.0    -      -       -      +
    240A  ALA*     1.3    64.4    +      -       -      +
    242A  GLN*     3.3    14.2    +      -       -      +
    243A  MSE      3.0    40.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 240 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    237A  GLU*     3.1    22.8    +      -       -      +
    239A  SER*     1.3    83.4    +      -       -      +
    241A  ARG*     1.3    61.6    +      -       +      +
    243A  MSE      3.4    15.6    +      -       +      +
    244A  HIS*     3.1    23.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 241 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227A  LEU      5.1     1.3    +      -       -      -
    228A  TYR*     2.8    59.6    +      -       +      +
    229A  ARG*     3.3    17.8    +      -       -      +
    237A  GLU*     2.9    45.6    +      -       -      +
    238A  LEU*     3.2    13.4    +      -       +      +
    240A  ALA*     1.3    75.7    -      -       +      +
    242A  GLN*     1.3    60.7    +      -       +      +
    244A  HIS*     3.3     4.2    +      -       -      -
    245A  LEU*     2.9    30.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 242 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238A  LEU*     3.0    40.6    +      -       +      +
    239A  SER*     3.7    18.9    -      -       -      +
    240A  ALA      3.3     0.2    -      -       -      -
    241A  ARG*     1.3    77.1    -      -       +      +
    243A  MSE      1.3    57.9    +      -       +      +
    245A  LEU*     3.5     8.6    +      -       +      +
    246A  ALA*     2.9    29.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with MSE 243 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    239A  SER*     3.0    40.1    +      -       -      +
    240A  ALA*     3.8    11.4    -      -       +      +
    241A  ARG      3.3     0.2    -      -       -      -
    242A  GLN*     1.3    73.5    -      -       +      +
    244A  HIS*     1.3    65.9    +      -       -      +
    246A  ALA*     3.3     7.8    +      -       -      +
    247A  ARG*     3.0    23.9    +      -       -      +
    250A  ARG*     5.4     0.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with HIS 244 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    197A  THR*     3.4    23.8    -      -       -      -
    198A  ASP*     3.6    19.0    +      -       -      -
    201A  THR*     3.3    31.2    +      -       +      +
    228A  TYR*     2.6    29.3    +      +       +      -
    240A  ALA      3.1    17.1    +      -       -      +
    241A  ARG*     3.6     6.3    -      -       -      +
    242A  GLN      3.3     0.2    -      -       -      -
    243A  MSE      1.3    77.8    -      -       -      +
    245A  LEU*     1.3    56.4    +      -       -      +
    247A  ARG*     3.3     8.8    +      -       +      +
    248A  PHE*     3.0    22.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 245 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    224A  ALA      3.7    13.7    -      -       -      +
    225A  THR*     3.9    24.0    -      -       +      -
    228A  TYR*     3.6    38.7    +      -       +      -
    241A  ARG      2.9    17.5    +      -       -      +
    242A  GLN*     3.8     8.3    -      -       +      +
    244A  HIS*     1.3    74.3    -      -       -      +
    246A  ALA*     1.3    65.6    +      -       -      +
    248A  PHE*     3.0     9.2    +      -       +      +
    249A  LEU*     2.9    46.8    +      -       +      +
    503A  EDO      6.1     1.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 246 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    242A  GLN      2.9    17.9    +      -       -      +
    243A  MSE      3.3     8.5    +      -       -      +
    245A  LEU*     1.3    77.0    -      -       -      +
    247A  ARG*     1.3    62.9    +      -       -      +
    249A  LEU*     3.3    11.9    +      -       -      +
    250A  ARG*     3.0    39.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 247 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201A  THR*     6.3     0.2    -      -       +      -
    205A  TYR*     5.6     1.0    +      -       -      -
    243A  MSE      3.0    14.0    +      -       -      +
    244A  HIS*     3.5    11.7    -      -       +      +
    246A  ALA*     1.3    75.6    -      -       -      +
    248A  PHE*     1.3    64.7    +      -       -      +
    250A  ARG*     3.1    31.3    +      -       -      +
    251A  MSE      2.9    65.1    +      -       -      +
   1546B  PHE*     2.4    37.8    +      -       -      +
   1547B  ASP*     4.6     1.6    -      -       -      +
   1548B  GLU*     3.7    26.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 248 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    160A  ILE*     5.6     1.1    -      -       +      -
    200A  GLN*     3.3    50.9    -      -       +      -
    201A  THR*     3.5    20.4    +      -       -      +
    204A  LEU*     3.4    29.6    -      -       +      -
    221A  VAL*     4.0    20.6    -      -       +      -
    224A  ALA*     4.2     5.8    -      -       +      -
    228A  TYR*     4.0     8.5    -      -       -      +
    244A  HIS      3.0    13.6    +      -       -      +
    245A  LEU*     3.0    15.5    +      -       +      +
    247A  ARG*     1.3    78.0    -      -       -      +
    249A  LEU*     1.3    69.6    +      -       +      +
    251A  MSE      3.1    12.5    +      -       -      +
    252A  LEU*     3.0    51.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 249 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122A  ILE*     4.0     9.5    -      -       +      +
    224A  ALA*     4.8     2.9    -      -       +      -
    225A  THR*     6.1     1.6    -      -       +      -
    245A  LEU*     2.9    40.1    +      -       +      +
    246A  ALA*     3.7    10.1    -      -       -      +
    248A  PHE*     1.3    84.2    -      -       +      +
    250A  ARG*     1.3    62.5    +      -       +      +
    252A  LEU*     3.3    18.5    +      -       +      +
    253A  LEU*     3.2    20.6    +      -       -      +
    265A  ILE*     3.9    28.0    -      -       +      -
    503A  EDO      3.5    33.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 250 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    243A  MSE      5.4     0.2    +      -       -      -
    246A  ALA*     3.0    34.6    +      -       -      +
    247A  ARG*     3.1    32.4    +      -       -      +
    249A  LEU*     1.3    74.9    -      -       +      +
    251A  MSE      1.3    60.7    +      -       -      +
    253A  LEU*     3.3    12.5    +      -       +      +
    254A  ARG*     3.0    26.2    +      -       -      +
   1548B  GLU*     2.8    45.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with MSE 251 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201A  THR*     3.8    24.2    -      -       +      -
    204A  LEU*     3.6    24.5    -      -       +      -
    205A  TYR*     3.8    20.0    -      -       +      +
    247A  ARG*     2.9    47.6    +      -       -      +
    248A  PHE*     3.3    14.4    -      -       -      +
    250A  ARG*     1.3    75.4    -      -       -      +
    252A  LEU*     1.3    64.9    +      -       -      +
    254A  ARG*     3.2     4.1    +      -       -      +
    255A  LEU*     3.0    20.3    +      -       -      +
   1546B  PHE*     3.5    54.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 252 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122A  ILE*     4.0    11.7    -      -       +      -
    204A  LEU*     3.8    21.1    -      -       +      -
    219A  LEU*     3.8    28.5    -      -       +      -
    221A  VAL*     4.2     4.7    -      -       +      -
    248A  PHE*     3.0    42.7    +      -       +      +
    249A  LEU*     3.5    21.3    -      -       +      +
    250A  ARG      3.2     0.2    -      -       -      -
    251A  MSE      1.3    77.2    -      -       -      +
    253A  LEU*     1.3    62.1    +      -       -      +
    255A  LEU*     3.2     7.3    +      -       +      +
    256A  ALA*     3.0    22.3    +      -       -      +
    263A  VAL*     3.9    12.1    -      -       +      +
    265A  ILE*     3.6    29.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 253 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120A  GLY      5.2     3.4    -      -       -      +
    121A  SER*     5.2     1.3    -      -       -      -
    122A  ILE*     3.9    19.9    -      -       +      +
    249A  LEU      3.2    10.8    +      -       -      +
    250A  ARG*     3.5    14.1    -      -       +      +
    252A  LEU*     1.3    79.8    -      -       -      +
    254A  ARG*     1.3    56.5    +      -       -      +
    256A  ALA*     3.3     8.9    +      -       +      +
    257A  ASP*     2.9    51.6    +      -       -      +
    294A  HIS*     3.6    38.4    -      -       +      +
    296A  SER*     4.0    20.2    -      -       -      +
    297A  THR*     5.7     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 254 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    250A  ARG      3.0    13.2    +      -       -      +
    251A  MSE      3.4    10.1    -      -       -      +
    253A  LEU*     1.3    78.5    -      -       -      +
    255A  LEU*     1.3    57.3    +      -       -      +
    257A  ASP*     3.3    18.4    +      -       -      +
    258A  GLU*     2.6    81.6    +      -       -      +
   1545B  LEU*     3.2    43.4    +      -       +      +
   1546B  PHE*     4.2    15.3    -      -       +      +
   1547B  ASP      5.8     2.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 255 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204A  LEU*     3.9    24.7    -      -       +      +
    207A  ALA*     4.6     5.8    -      -       +      -
    208A  SER*     4.0    11.4    -      -       -      -
    211A  MSE      4.5     7.9    -      -       -      -
    219A  LEU*     3.9    26.9    -      -       +      -
    251A  MSE      3.0    16.9    +      -       -      +
    252A  LEU*     3.2    10.1    +      -       +      +
    254A  ARG*     1.3    77.4    -      -       -      +
    256A  ALA*     1.3    56.8    +      -       -      +
    259A  PHE*     2.9    64.0    +      -       +      +
    261A  VAL*     4.0     6.8    -      -       +      +
    263A  VAL*     5.1     0.2    -      -       +      -
   1545B  LEU*     4.0     2.5    -      -       +      -
   1546B  PHE*     3.6    27.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 256 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120A  GLY*     3.6    32.0    -      -       -      +
    121A  SER*     3.9     8.1    -      -       -      +
    122A  ILE*     5.1     0.4    -      -       +      +
    252A  LEU      3.0    12.9    +      -       -      +
    253A  LEU*     3.3    12.5    +      -       +      +
    255A  LEU*     1.3    75.0    -      -       -      +
    257A  ASP*     1.3    59.4    +      -       -      +
    260A  GLY*     3.0    27.7    +      -       -      -
    261A  VAL*     3.7    19.7    -      -       -      +
    263A  VAL*     3.9    10.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 257 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120A  GLY      4.1    11.4    -      -       -      +
    253A  LEU*     2.9    40.1    +      -       -      +
    254A  ARG*     3.4    25.3    +      -       -      +
    255A  LEU      3.2     0.2    -      -       -      -
    256A  ALA*     1.3    79.2    -      -       -      +
    258A  GLU*     1.3    63.3    +      -       -      +
    260A  GLY*     4.1     2.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 258 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    254A  ARG*     2.6    58.1    +      -       -      +
    255A  LEU*     4.0     2.0    -      -       -      +
    257A  ASP*     1.3    76.5    -      -       -      +
    259A  PHE*     1.3    84.8    +      -       +      +
   1545B  LEU*     3.7    21.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 259 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208A  SER*     3.6    20.0    -      -       -      -
    211A  MSE      3.5    42.6    -      -       +      -
    212A  VAL*     4.0    20.9    -      -       +      -
    215A  ARG*     5.4     4.5    +      -       -      -
    216A  TYR      4.9     2.6    -      -       -      +
    255A  LEU*     2.9    42.0    +      -       +      +
    258A  GLU*     1.3    91.2    -      -       +      +
    260A  GLY*     1.3    63.4    +      -       -      +
    261A  VAL*     3.4    19.2    +      -       +      +
   1542B  VAL*     4.8     1.8    -      -       +      -
   1545B  LEU*     3.9    15.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 260 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119A  THR*     3.3    21.4    +      -       -      +
    120A  GLY*     3.9     8.1    -      -       -      -
    215A  ARG*     5.8     3.1    +      -       -      -
    216A  TYR      5.3     1.1    -      -       -      +
    217A  ALA*     5.4     1.2    -      -       -      -
    256A  ALA      3.0    15.5    +      -       -      -
    257A  ASP      4.1     2.7    +      -       -      -
    258A  GLU      3.6     1.6    -      -       -      -
    259A  PHE*     1.3    78.9    -      -       -      +
    261A  VAL*     1.3    61.4    +      -       -      +
----------------------------------------------------------
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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