Contacts of the helix formed by residues 48 - 71 (chain H) in PDB entry 3SDI


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 THR 48 (chain H).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47H  GLY*     1.3    67.5    -      -       -      -
     49H  ALA*     1.3    68.0    +      -       -      +
     50H  ALA*     4.5     1.3    -      -       +      +
     51H  ASP*     3.0    42.9    +      -       -      +
     52H  THR*     3.1    14.3    +      -       -      +
     96H  GLY*     3.0    16.8    +      -       -      -
     91I  ARG*     4.0    13.2    +      -       -      +
    114I  ASP*     5.8     2.2    -      -       -      +
    116I  ILE*     4.0    17.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 49 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20H  SER*     6.0     2.0    -      -       -      +
     47H  GLY      3.0     9.0    +      -       -      +
     48H  THR*     1.3    71.7    -      -       -      +
     50H  ALA*     1.3    63.9    +      -       -      +
     52H  THR*     3.1    22.1    +      -       -      -
     53H  GLU*     3.2    12.7    +      -       -      +
    114I  ASP*     5.3     2.4    +      -       -      +
    118I  CYS*     3.5    25.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 50 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48H  THR*     3.4     1.0    -      -       -      +
     49H  ALA*     1.3    78.8    -      -       -      +
     51H  ASP*     1.3    56.7    +      -       -      +
     53H  GLU*     3.7     4.2    +      -       -      +
     54H  ALA*     3.0    30.7    +      -       -      +
     88I  TYR*     3.8     7.3    -      -       +      -
    114I  ASP*     4.6     1.9    +      -       -      +
    116I  ILE*     3.7    40.6    -      -       +      +
    117I  GLY      4.5     0.4    -      -       -      -
    118I  CYS*     3.6    31.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 51 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48H  THR*     3.0    19.9    +      -       -      +
     50H  ALA*     1.3    77.3    -      -       -      +
     52H  THR*     1.3    59.9    +      -       -      +
     54H  ALA*     3.3     1.4    +      -       -      +
     55H  VAL*     2.9    33.4    +      -       -      +
     95H  ILE*     3.4    20.1    -      -       +      +
     96H  GLY      2.8    29.6    +      -       -      +
     97H  ALA*     4.5     1.8    -      -       -      -
     88I  TYR*     3.0    19.0    +      -       -      -
     91I  ARG*     2.8    42.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 52 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35H  HIS*     4.9     9.1    +      -       -      -
     45H  GLY*     4.0    20.3    +      -       -      -
     46H  ALA      3.7    25.4    -      -       -      +
     48H  THR      3.1    10.9    +      -       -      +
     49H  ALA*     3.1    14.4    +      -       -      -
     51H  ASP*     1.3    75.5    -      -       -      +
     53H  GLU*     1.3    61.0    +      -       -      +
     55H  VAL*     3.5     8.0    -      -       -      +
     56H  THR*     3.0    32.9    +      -       -      -
     96H  GLY      4.3     0.2    -      -       -      +
     97H  ALA*     3.8    18.8    -      -       +      -
     99H  LEU*     3.9    12.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 53 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35H  HIS*     3.8    34.7    +      -       -      +
     49H  ALA      3.2    12.4    +      -       -      +
     50H  ALA*     4.0     4.5    -      -       -      +
     52H  THR*     1.3    81.4    +      -       -      +
     54H  ALA*     1.3    58.0    +      -       -      +
     56H  THR*     3.5     6.3    +      -       -      +
     57H  GLN*     3.0    66.8    +      -       -      +
    118I  CYS*     6.4     2.0    -      -       -      -
    119I  ILE*     5.9     5.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 54 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50H  ALA      3.0    19.7    +      -       -      +
     51H  ASP      3.3     1.5    +      -       -      +
     53H  GLU*     1.3    74.3    -      -       -      +
     55H  VAL*     1.3    61.5    +      -       -      +
     56H  THR      3.0     1.8    -      -       -      -
     57H  GLN*     3.2     4.3    +      -       -      +
     58H  LEU*     2.8    33.3    +      -       -      +
     88I  TYR*     3.5    39.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 55 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51H  ASP      2.9    16.5    +      -       -      +
     52H  THR*     3.5    11.2    -      -       -      +
     54H  ALA*     1.3    77.7    -      -       -      +
     56H  THR*     1.3    61.6    +      -       -      +
     58H  LEU*     4.6     4.3    -      -       -      -
     59H  ILE*     3.3    28.3    +      -       +      +
     83H  LEU*     3.5    15.0    -      -       +      +
     86H  HIS*     3.5    33.7    -      -       +      +
     87H  LEU*     4.0    15.9    -      -       +      -
     95H  ILE*     4.8     4.7    -      -       +      -
     97H  ALA*     4.1    11.2    -      -       +      -
     99H  LEU*     3.9    26.5    -      -       +      -
     88I  TYR*     5.3     0.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 56 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35H  HIS*     3.6    31.7    -      -       +      -
     36H  ARG      3.9    14.7    -      -       -      +
     37H  ILE*     4.4    10.1    -      -       +      +
     43H  CYS*     3.2    26.3    -      -       -      -
     52H  THR      3.0    21.4    +      -       -      -
     53H  GLU*     3.5     8.7    -      -       -      +
     54H  ALA      3.0     0.4    -      -       -      -
     55H  VAL*     1.3    80.2    -      -       -      +
     57H  GLN*     1.3    65.9    +      -       +      +
     59H  ILE*     4.2     0.2    -      -       -      -
     60H  GLY*     2.9    26.5    +      -       -      -
     83H  LEU*     5.2     2.5    -      -       -      +
     99H  LEU*     4.5     3.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 57 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101A  LYS*     5.4     9.7    +      -       -      +
    102A  ARG*     6.2     0.9    -      -       -      -
    104A  GLY*     5.0    10.5    +      -       -      -
     36H  ARG      6.0     0.4    -      -       -      +
     53H  GLU*     3.0    48.2    +      -       -      +
     54H  ALA*     4.0     4.2    -      -       -      +
     56H  THR*     1.3    77.0    -      -       +      +
     58H  LEU*     1.3    65.2    +      -       -      +
     60H  GLY*     3.7     1.1    -      -       -      -
     61H  SER*     2.9    26.6    +      -       -      -
     81I  GLN*     4.5    17.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 58 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102A  ARG*     4.0    32.5    -      -       -      +
     54H  ALA      2.8    22.3    +      -       -      +
     55H  VAL*     4.2     4.0    -      -       -      +
     57H  GLN*     1.3    75.8    -      -       -      +
     59H  ILE*     1.3    71.1    +      -       +      +
     61H  SER*     3.1     5.5    +      -       -      -
     62H  ASN*     3.0    34.1    +      -       -      +
     86H  HIS*     3.6    35.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 59 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37H  ILE*     4.4    10.3    -      -       +      -
     55H  VAL*     3.3    21.4    +      -       +      +
     56H  THR      4.5     0.7    -      -       -      +
     58H  LEU*     1.3    98.3    -      -       +      +
     60H  GLY*     1.3    58.0    +      -       -      +
     62H  ASN*     3.3     9.9    +      -       -      +
     63H  ILE*     2.9    41.5    +      -       +      +
     79H  ALA*     4.2    12.3    -      -       +      +
     82H  MET*     3.8    24.7    -      -       +      +
     83H  LEU*     3.7    30.5    -      -       +      +
     86H  HIS*     4.4    21.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 60 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101A  LYS*     6.3     0.4    -      -       -      -
     36H  ARG      5.3     1.1    -      -       -      -
     37H  ILE*     3.3    31.6    -      -       -      +
     56H  THR      2.9    21.3    +      -       -      -
     57H  GLN*     3.7     1.1    -      -       -      -
     58H  LEU      3.2     0.2    -      -       -      -
     59H  ILE*     1.3    75.7    -      -       -      +
     61H  SER*     1.3    56.7    +      -       -      +
     63H  ILE*     3.4     2.3    +      -       -      +
     64H  GLU*     3.0    28.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 61 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97A  HIS*     2.7    33.0    -      -       -      +
    101A  LYS*     5.6     7.9    -      -       -      +
    102A  ARG*     3.0    33.7    +      -       -      +
     57H  GLN      2.9    18.3    +      -       -      -
     58H  LEU*     3.3     5.4    -      -       -      -
     60H  GLY*     1.3    76.5    -      -       -      +
     62H  ASN*     1.3    61.0    +      -       -      +
     64H  GLU*     3.3     6.3    +      -       -      +
     65H  LEU*     3.2    23.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 62 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102A  ARG*     3.0    21.0    +      -       -      +
     58H  LEU*     3.0    36.4    +      -       -      +
     59H  ILE*     3.9     9.7    -      -       -      +
     61H  SER*     1.3    75.7    -      -       -      +
     63H  ILE*     1.3    57.3    +      -       -      +
     65H  LEU*     3.5    11.3    +      -       -      +
     66H  HIS*     2.9    28.6    +      -       -      +
     82H  MET*     3.4    26.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 63 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37H  ILE*     4.3     9.2    -      -       +      +
     38H  SER*     4.0    17.7    -      -       -      -
     41H  ILE*     5.2     0.7    -      -       +      -
     59H  ILE*     2.9    27.5    +      -       +      +
     60H  GLY*     3.7     6.3    -      -       -      +
     62H  ASN*     1.3    74.5    -      -       -      +
     64H  GLU*     1.3    66.3    +      -       -      +
     66H  HIS*     3.3    11.9    +      -       +      +
     67H  SER*     2.9    23.4    +      -       -      -
     74H  PRO*     3.7    29.7    -      -       +      +
     75H  ARG      4.3     5.4    -      -       -      +
     78H  SER*     3.9    28.9    -      -       -      -
     79H  ALA*     4.0    10.1    -      -       +      +
     82H  MET*     3.9    15.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 64 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72A  PRO*     4.9     3.8    -      -       -      +
     97A  HIS*     3.1    27.5    +      -       -      +
    101A  LYS*     4.5     6.1    +      -       -      -
    106A  TYR*     2.5    32.8    +      -       -      -
     60H  GLY      3.0    14.2    +      -       -      +
     61H  SER*     3.4    10.5    -      -       -      +
     63H  ILE*     1.3    77.0    -      -       -      +
     65H  LEU*     1.3    62.6    +      -       -      +
     67H  SER*     3.0     8.4    +      -       -      -
     68H  LEU*     2.9    40.4    +      -       +      +
     74H  PRO*     6.1     0.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 65 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93A  ARG*     3.6    39.0    -      -       +      +
     94A  LYS*     4.1    28.5    -      -       +      +
     97A  HIS*     3.7    21.8    -      -       +      +
    102A  ARG*     4.1    19.5    -      -       -      +
     61H  SER      3.2    14.6    +      -       -      +
     62H  ASN*     3.7    13.7    -      -       -      +
     63H  ILE      3.3     0.2    -      -       -      -
     64H  GLU*     1.3    74.3    -      -       -      +
     66H  HIS*     1.3    56.2    +      -       -      +
     68H  LEU*     3.4     9.7    +      -       +      +
     69H  TYR*     2.9    32.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 66 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99G  PHE*     3.5    16.2    -      +       -      -
    103G  TYR*     3.5    49.6    -      +       +      -
    105G  TYR*     2.8    42.1    +      +       -      -
     62H  ASN      2.9    17.8    +      -       -      +
     63H  ILE*     3.3    14.6    +      -       +      +
     65H  LEU*     1.3    74.1    -      -       -      +
     67H  SER*     1.3    58.9    +      -       -      +
     69H  TYR*     3.3     6.5    +      +       +      +
     70H  THR*     2.9    47.7    +      -       +      +
     74H  PRO*     5.9     4.0    -      -       -      +
     78H  SER*     4.7     6.3    +      -       -      -
     82H  MET*     5.4     0.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 67 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63H  ILE      2.9    18.0    +      -       -      -
     64H  GLU*     3.0     7.8    +      -       -      -
     66H  HIS*     1.3    74.3    +      -       -      +
     68H  LEU*     1.3    65.6    +      -       -      +
     70H  THR*     3.9     1.8    -      -       -      -
     71H  SER*     2.9    26.3    +      -       -      -
     72H  ARG      2.7    31.1    +      -       -      -
     73H  GLU*     4.3     1.2    +      -       -      -
     74H  PRO*     3.7    24.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 68 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69A  LEU*     4.7    25.6    -      -       +      +
     70A  LEU      4.8     3.4    -      -       -      +
     93A  ARG*     3.5    61.1    +      -       +      +
     97A  HIS*     5.6     2.2    -      -       +      -
    114G  LYS*     4.6     1.4    +      -       -      -
     64H  GLU*     2.9    37.3    +      -       +      +
     65H  LEU*     3.6     9.2    -      -       +      +
     67H  SER*     1.3    82.7    -      -       -      +
     69H  TYR*     1.3    60.8    +      -       -      +
     70H  THR      3.5     0.2    +      -       -      -
     71H  SER*     3.7    10.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 69 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90A  ASP*     3.7    35.9    -      -       +      -
     93A  ARG*     4.8     2.0    -      -       -      +
    111G  VAL*     4.3    18.4    -      -       +      +
    114G  LYS*     3.0    45.7    +      -       +      +
    115G  ARG*     3.6    37.1    +      -       +      -
    118G  ASN*     3.6    12.3    +      -       -      -
     65H  LEU      2.9    18.9    +      -       -      +
     66H  HIS*     3.6     7.6    -      +       +      +
     68H  LEU*     1.3    79.1    -      -       -      +
     70H  THR*     1.3    69.0    +      -       +      +
     71H  SER*     4.5     2.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 70 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99G  PHE*     4.4     1.8    -      -       +      -
    105G  TYR*     4.2     9.7    +      -       -      +
    110G  ASP*     4.0     2.0    -      -       -      +
    111G  VAL*     3.7    36.5    -      -       +      +
     66H  HIS*     2.9    52.5    +      -       +      +
     67H  SER*     3.7     2.6    +      -       -      -
     69H  TYR*     1.3    82.6    -      -       +      +
     71H  SER*     1.3    72.5    +      -       -      +
     72H  ARG*     3.1    40.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 71 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110G  ASP*     5.3     2.7    -      -       -      -
     67H  SER      2.9    10.2    +      -       -      -
     68H  LEU      3.7     9.2    +      -       -      -
     69H  TYR      3.5     3.6    +      -       -      -
     70H  THR*     1.3    81.9    -      -       -      +
     72H  ARG*     1.3    63.4    +      -       -      +
----------------------------------------------------------
 Back to top of page


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