Contacts of the helix formed by residues 814 - 835 (chain A) in PDB entry 3E0D


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 ASN 814 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    425A  GLY      3.2     4.7    -      -       -      -
    426A  SER*     3.1    29.0    +      -       -      +
    452A  ARG*     3.0    33.7    +      -       -      +
    744A  GLN*     3.6    12.5    +      -       -      +
    745A  GLU*     2.0    37.8    +      -       -      +
    813A  PHE*     1.3    84.4    -      -       +      +
    815A  LYS*     1.3    62.8    +      -       -      +
    816A  SER*     2.9    22.7    +      -       -      +
    817A  HIS*     3.4     8.2    +      -       +      +
    818A  ALA      3.2    15.8    +      -       -      -
   1222A  DTP      3.8     5.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 815 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    446A  PHE*     4.0    12.6    -      -       -      +
    447A  GLY*     2.9    38.2    -      -       -      +
    448A  LEU*     3.9    12.6    -      -       +      -
    688A  GLU*     5.7     3.8    -      -       -      +
    691A  ILE*     4.4    25.8    -      -       +      -
    736A  GLU*     3.7    32.6    +      -       -      -
    743A  TYR*     4.6    24.9    -      -       +      -
    745A  GLU*     2.4    31.9    +      -       +      +
    813A  PHE      3.2     1.5    +      -       -      -
    814A  ASN*     1.3    64.8    -      -       -      +
    816A  SER*     1.3    54.6    +      -       -      +
    818A  ALA*     4.2     5.6    -      -       -      -
    819A  ALA*     2.7    35.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 816 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    425A  GLY      3.3     8.0    +      -       -      -
    426A  SER*     3.5     6.8    +      -       -      -
    428A  ALA*     3.8     8.3    -      -       -      +
    429A  GLY*     3.7    19.9    -      -       -      -
    448A  LEU*     3.2    34.6    -      -       -      +
    449A  LEU      5.5     0.7    -      -       -      -
    745A  GLU*     3.7     0.4    +      -       -      -
    814A  ASN*     2.9    25.6    +      -       -      +
    815A  LYS*     1.3    76.3    -      -       -      +
    817A  HIS*     1.3    64.5    +      -       -      +
    819A  ALA*     3.9     0.9    -      -       -      +
    820A  ALA*     3.0    26.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 817 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    424A  ARG*     3.6     8.7    -      -       +      -
    425A  GLY*     2.8    43.5    +      -       -      +
    669A  GLN*     5.4     3.4    -      -       -      -
    813A  PHE*     4.1    18.9    -      +       +      -
    814A  ASN*     3.4    15.9    +      -       +      +
    815A  LYS      3.2     0.4    -      -       -      -
    816A  SER*     1.3    82.5    +      -       -      +
    818A  ALA*     1.3    62.9    +      -       -      +
    820A  ALA*     3.6     2.6    +      -       -      +
    821A  TYR*     3.1    51.3    +      +       +      +
   1222A  DTP      2.7    39.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 818 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    669A  GLN*     4.8     0.7    -      -       -      +
    691A  ILE*     3.7    14.8    -      -       +      +
    694A  VAL*     5.5     6.6    -      -       +      +
    695A  SER*     3.4    26.2    -      -       -      +
    813A  PHE*     3.6    17.0    -      -       +      -
    814A  ASN      3.2     5.9    +      -       -      +
    815A  LYS*     3.1     9.9    +      -       -      +
    817A  HIS*     1.3    79.4    +      -       -      +
    819A  ALA*     1.3    53.9    +      -       -      +
    821A  TYR*     3.4     3.9    +      -       -      +
    822A  SER*     2.6    38.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 819 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    441A  ILE*     3.7    19.9    -      -       +      +
    446A  PHE*     4.7     9.0    -      -       +      -
    448A  LEU*     4.3    15.7    -      -       +      -
    687A  LEU*     5.2     2.1    -      -       -      +
    691A  ILE*     3.7    30.2    -      -       +      +
    815A  LYS*     2.7    21.4    +      -       +      +
    816A  SER      3.9     2.5    -      -       -      +
    818A  ALA*     1.3    72.5    -      -       -      +
    820A  ALA*     1.3    64.4    +      -       -      +
    822A  SER*     3.2    12.4    +      -       -      -
    823A  LEU*     3.2     8.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 820 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    422A  PRO*     3.5    18.0    -      -       +      +
    423A  GLY*     3.5    35.7    -      -       -      +
    428A  ALA*     4.7     2.0    -      -       +      -
    441A  ILE*     3.9    21.9    -      -       +      +
    816A  SER      3.0    17.3    +      -       -      +
    817A  HIS*     3.9     3.4    -      -       -      +
    819A  ALA*     1.3    76.2    -      -       -      +
    821A  TYR*     1.3    64.5    +      -       -      +
    823A  LEU*     3.3    16.6    +      -       -      +
    824A  LEU*     3.8     1.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 821 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    422A  PRO*     6.0     0.2    -      -       +      -
    423A  GLY      3.4    13.2    -      -       -      -
    424A  ARG*     2.7    56.7    +      -       +      -
    467A  ASP*     3.0    21.2    +      -       -      -
    620A  LEU*     4.5     0.5    -      -       -      +
    622A  LEU*     4.4     7.5    -      -       +      +
    668A  PHE*     3.4    33.7    -      +       -      -
    669A  GLN*     3.4    25.8    -      -       -      +
    817A  HIS*     3.1    40.1    +      +       +      +
    818A  ALA*     4.0     2.9    -      -       -      +
    820A  ALA*     1.3    78.5    -      -       -      +
    822A  SER*     1.3    63.8    +      -       -      +
    824A  LEU*     2.8    25.7    +      -       +      +
    825A  SER*     3.3     9.4    +      -       -      -
      7C    G      4.7     5.6    +      +       -      -
----------------------------------------------------------
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Residues in contact with SER 822 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    669A  GLN*     3.7     5.3    +      -       -      -
    687A  LEU*     4.0    10.3    -      -       -      +
    690A  ILE*     3.8    16.3    +      -       -      +
    691A  ILE*     3.3    36.8    +      -       -      -
    694A  VAL*     4.8     2.4    -      -       -      +
    818A  ALA*     2.6    25.3    +      -       -      -
    819A  ALA      3.2     6.9    +      -       -      -
    821A  TYR*     1.3    75.3    -      -       -      +
    823A  LEU*     1.3    57.6    +      -       -      +
    825A  SER*     3.0    13.7    +      -       -      -
    826A  TYR*     2.9    27.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 823 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    422A  PRO*     4.3    20.6    -      -       +      -
    440A  ASN      4.6     6.1    -      -       -      +
    441A  ILE*     3.7    27.8    -      -       +      -
    446A  PHE*     6.3     0.2    -      -       +      -
    645A  TYR      5.3     1.6    -      -       -      +
    650A  LEU*     3.9    29.2    -      -       +      -
    687A  LEU*     4.4     9.6    -      -       +      +
    819A  ALA      3.2     5.8    +      -       -      +
    820A  ALA      3.3    10.5    -      -       -      +
    821A  TYR      3.1     0.2    -      -       -      -
    822A  SER*     1.3    79.9    -      -       -      +
    824A  LEU*     1.3    57.1    +      -       +      +
    826A  TYR*     3.4     9.0    +      -       +      +
    827A  GLN*     2.9    66.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 824 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    421A  GLY*     5.4     0.4    -      -       -      -
    422A  PRO*     4.2    26.5    -      -       +      -
    467A  ASP*     5.4     1.6    -      -       -      +
    622A  LEU*     3.9    27.6    -      -       +      -
    624A  THR*     4.1     8.4    -      -       +      +
    625A  LEU*     3.6    27.8    -      -       +      -
    628A  LEU*     3.9     7.7    -      -       +      +
    668A  PHE*     3.6    22.9    -      -       +      -
    820A  ALA      4.5     2.0    -      -       -      +
    821A  TYR*     2.8    22.8    +      -       +      +
    823A  LEU*     1.3    70.2    -      -       -      +
    825A  SER*     1.3    60.6    +      -       -      +
    827A  GLN*     3.3    21.1    +      -       -      +
    828A  THR*     2.9    33.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 825 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    659A  LEU*     6.1     0.7    -      -       -      -
    667A  VAL*     3.5    11.1    -      -       -      +
    668A  PHE*     2.9    33.4    +      -       -      -
    669A  GLN*     3.3    24.4    +      -       -      +
    670A  LEU*     4.7     6.2    -      -       -      +
    690A  ILE*     4.4    14.8    -      -       -      +
    821A  TYR      3.3     1.8    +      -       -      -
    822A  SER*     3.0    12.2    +      -       -      -
    824A  LEU*     1.3    78.0    -      -       -      +
    826A  TYR*     1.3    63.1    +      -       -      -
    828A  THR*     3.2     2.8    +      -       -      -
    829A  ALA*     2.9    20.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 826 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    648A  LEU*     4.9     6.5    -      -       +      -
    649A  PRO      2.5    30.0    +      -       -      -
    650A  LEU*     3.3    24.9    -      -       +      -
    652A  ASP*     3.1    27.7    +      -       +      +
    655A  THR*     3.7    23.3    -      -       +      +
    656A  PHE*     3.5    37.7    -      +       -      -
    687A  LEU*     3.8    25.1    -      -       +      -
    690A  ILE*     4.7     7.3    -      -       +      +
    822A  SER      2.9     5.5    +      -       -      -
    823A  LEU*     3.5     9.9    -      -       +      +
    825A  SER*     1.3    75.7    -      -       -      +
    827A  GLN*     1.3    63.6    +      -       +      +
    829A  ALA*     3.1     7.9    +      -       -      +
    830A  TYR*     2.6    49.3    +      +       +      +
----------------------------------------------------------
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Residues in contact with GLN 827 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    628A  LEU*     3.7    20.4    -      -       +      +
    645A  TYR*     3.3    49.2    +      -       +      +
    646A  ASP*     4.4     6.3    +      -       -      +
    648A  LEU*     4.5    10.8    -      -       +      -
    823A  LEU*     2.9    44.7    +      -       +      +
    824A  LEU*     3.6    24.2    -      -       -      +
    826A  TYR*     1.3    78.4    -      -       +      +
    828A  THR*     1.3    64.3    +      -       -      +
    830A  TYR*     3.3     6.6    +      -       -      +
    831A  VAL*     3.0    27.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 828 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    624A  THR*     3.9    12.3    +      -       -      +
    627A  PHE*     4.6     8.7    -      -       +      -
    628A  LEU*     4.0    12.7    -      -       -      +
    666A  GLY      3.0    29.6    -      -       -      +
    667A  VAL*     3.3    15.5    -      -       +      -
    668A  PHE*     3.6    16.4    -      -       -      +
    824A  LEU      2.9    16.0    +      -       -      -
    825A  SER      3.4     8.5    -      -       -      -
    827A  GLN*     1.3    75.6    -      -       -      +
    829A  ALA*     1.3    57.9    +      -       -      +
    832A  LYS      3.2     0.2    +      -       -      -
    839A  PHE*     2.6    44.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 829 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    655A  THR*     4.0    13.9    -      -       +      -
    658A  LEU*     4.2     9.3    -      -       +      +
    659A  LEU*     3.7    32.3    -      -       +      -
    667A  VAL*     3.8    13.0    -      -       +      +
    825A  SER      2.9    17.0    +      -       -      +
    826A  TYR      3.5     6.5    -      -       -      +
    828A  THR*     1.3    73.5    -      -       -      +
    830A  TYR*     1.3    52.0    +      -       -      +
    832A  LYS*     3.2     6.3    +      -       -      +
    833A  ALA*     2.8    35.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 830 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    643A  LEU*     4.1    15.8    -      -       +      +
    648A  LEU*     3.6    44.5    -      -       +      +
    649A  PRO*     4.9    10.3    -      -       +      +
    652A  ASP*     3.6    20.2    -      -       +      -
    655A  THR*     3.2    29.5    -      -       +      +
    826A  TYR*     2.6    33.1    +      +       +      +
    827A  GLN*     3.5     7.6    -      -       -      +
    829A  ALA*     1.3    72.1    -      -       -      +
    831A  VAL*     1.3    69.8    +      -       +      +
    833A  ALA*     3.2     2.6    +      -       -      +
    834A  HIS*     3.0    47.5    +      +       +      +
    835A  TYR*     5.0     5.0    -      +       -      -
----------------------------------------------------------
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Residues in contact with VAL 831 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    628A  LEU*     4.5     3.8    -      -       +      -
    631A  ALA*     4.3    10.5    -      -       +      -
    635A  VAL*     5.3     2.5    -      -       +      -
    643A  LEU*     4.2    13.0    -      -       +      -
    645A  TYR*     3.8    32.1    -      -       +      +
    827A  GLN      3.0    18.4    +      -       -      +
    830A  TYR*     1.3    81.7    -      -       +      +
    832A  LYS*     1.3    53.6    +      -       -      +
    834A  HIS      3.6     0.2    -      -       -      -
    835A  TYR*     2.7    44.4    +      -       +      +
    839A  PHE*     1.7    63.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 832 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    658A  LEU*     3.9    14.2    -      -       +      +
    663A  GLU      2.9    27.8    +      -       -      +
    665A  LYS*     3.0    60.6    -      -       -      +
    666A  GLY      3.5     5.3    -      -       -      +
    667A  VAL*     4.2     9.6    -      -       +      -
    828A  THR      3.2     1.5    +      -       -      +
    829A  ALA*     3.5     8.3    -      -       -      +
    831A  VAL*     1.3    73.5    -      -       -      +
    833A  ALA*     1.3    62.1    +      -       -      +
    835A  TYR      4.2     7.8    +      -       -      -
    836A  PRO*     4.6     3.8    -      -       -      +
    839A  PHE*     2.4    49.1    -      -       +      -
    840A  MET*     4.1    17.9    -      -       +      +
    864A  LEU*     5.3     8.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 833 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    654A  LYS*     3.5    38.3    -      -       +      +
    655A  THR*     3.9     9.4    -      -       -      +
    658A  LEU*     3.7    13.7    -      -       +      -
    829A  ALA      2.8    20.0    +      -       -      +
    830A  TYR      3.5     4.5    -      -       -      +
    831A  VAL      3.2     0.2    -      -       -      -
    832A  LYS*     1.3    75.7    -      -       -      +
    834A  HIS*     1.3    66.5    +      -       +      +
    835A  TYR      3.9     0.2    +      -       -      -
    836A  PRO*     5.2     1.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 834 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    652A  ASP*     2.8    39.9    +      -       -      -
    654A  LYS*     4.0    25.2    -      -       +      +
    830A  TYR*     3.0    46.3    +      +       +      +
    833A  ALA*     1.3    84.5    +      -       +      +
    835A  TYR*     1.3    86.1    +      -       +      +
    836A  PRO*     3.2    10.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 835 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    635A  VAL*     4.0    26.7    -      -       +      -
    639A  LYS*     3.7    36.1    -      -       +      -
    641A  VAL*     3.6    29.5    -      -       +      +
    643A  LEU*     4.6    23.1    -      -       +      -
    830A  TYR*     5.0     5.4    -      +       -      -
    831A  VAL*     2.7    24.4    +      -       +      +
    832A  LYS      4.3     3.6    -      -       -      -
    833A  ALA      3.6     0.6    -      -       -      -
    834A  HIS*     1.3    90.9    -      -       +      +
    836A  PRO*     1.1   111.0    -      -       +      +
    838A  GLU*     4.8     2.2    -      -       +      -
    839A  PHE*     2.5    28.8    +      -       +      +
----------------------------------------------------------
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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) +   -    +    +   +   +    +    -
------------------------------------------------------------
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