Contacts of the helix formed by residues 77 - 100 (chain m) in PDB entry 5GJQ


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 LEU 77 (chain m).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    437M  TYR*     5.9     3.4    -      -       +      -
    438M  TYR*     3.6    40.6    -      -       +      +
     15l  PHE*     4.3    12.1    -      -       +      -
     21l  LEU*     3.7    19.5    -      -       +      -
    121l  LEU*     3.0    37.7    -      -       +      -
    159l  SER      6.3     0.2    -      -       -      -
     76m  GLY*     1.3    70.0    -      -       -      -
     78m  THR*     1.3    66.1    +      -       -      +
     79m  ALA*     3.3     4.0    +      -       +      -
     80m  ASP*     3.2    27.5    -      -       +      +
     81m  ALA*     3.1    19.6    +      -       -      +
    126m  ARG*     3.7     2.7    -      -       -      +
    129m  GLY*     2.8    17.8    +      -       -      +
    130m  VAL*     3.9     2.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 78 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    437M  TYR      4.9     2.2    -      -       -      +
    438M  TYR*     5.7     0.6    -      -       -      +
    439M  ALA*     3.9    28.5    -      -       -      +
    160l  GLY      5.1     0.5    -      -       -      -
    161l  THR*     3.4    32.7    +      -       +      +
     60m  GLN*     3.9    24.4    +      -       -      +
     74m  ILE*     4.3    14.4    -      -       +      -
     76m  GLY      3.2     1.3    +      -       -      +
     77m  LEU*     1.3    69.1    -      -       -      +
     79m  ALA*     1.3    61.2    +      -       -      +
     81m  ALA*     3.2     8.9    +      -       -      +
     82m  ARG*     2.9    38.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 79 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120l  ALA*     4.8    10.3    -      -       -      +
    121l  LEU*     3.6    36.8    -      -       +      -
    159l  SER      4.8     8.5    -      -       -      -
    160l  GLY*     4.9     3.6    -      -       -      -
    161l  THR*     5.3     0.6    +      -       -      -
     77m  LEU*     4.0     2.7    -      -       +      -
     78m  THR*     1.3    83.1    +      -       -      +
     80m  ASP*     1.3    58.2    +      -       -      +
     82m  ARG*     3.2    18.3    +      -       -      +
     83m  LEU*     3.0    28.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 80 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121l  LEU*     3.6     5.5    -      -       -      +
     77m  LEU*     3.2    22.2    +      -       +      +
     78m  THR      3.4     0.4    -      -       -      -
     79m  ALA*     1.3    74.5    -      -       -      +
     81m  ALA*     1.3    65.7    +      -       -      +
     83m  LEU*     3.3    10.1    -      -       -      +
     84m  LEU*     3.0    29.3    +      -       -      +
    126m  ARG*     2.6    35.2    +      -       -      -
    128m  TYR*     3.4    20.1    -      -       +      -
    129m  GLY*     2.7    26.0    +      -       -      +
    130m  VAL*     3.8    15.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 81 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64m  LEU*     4.8     3.1    -      -       +      +
     72m  ILE*     5.0     2.6    -      -       -      +
     74m  ILE*     3.7    39.9    -      -       +      -
     77m  LEU      3.1    14.8    +      -       -      +
     78m  THR      3.3     9.2    -      -       -      +
     80m  ASP*     1.3    78.6    -      -       -      +
     82m  ARG*     1.3    52.0    +      -       -      +
     84m  LEU*     3.5     3.6    +      -       -      +
     85m  CYS*     2.8    35.4    +      -       -      +
    130m  VAL*     3.8    15.9    -      -       +      +
    132m  LEU*     5.3     2.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 82 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114l  GLN*     3.7    25.1    -      -       -      -
    117l  SER*     3.1    39.3    +      -       -      -
    118l  ASN*     1.9    40.5    +      -       -      +
    160l  GLY*     4.0    12.9    -      -       -      -
    161l  THR*     5.3     0.6    -      -       -      +
    162l  PHE*     4.2    15.8    -      -       -      -
     64m  LEU*     5.4     7.6    -      -       +      -
     78m  THR*     2.9    20.9    +      -       -      +
     79m  ALA*     3.7    16.9    +      -       -      +
     81m  ALA*     1.3    71.5    -      -       -      +
     83m  LEU*     1.3    59.6    +      -       -      +
     85m  CYS*     4.0     6.7    -      -       -      -
     86m  ASN*     2.9    41.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 83 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118l  ASN      6.1     0.4    -      -       -      +
    122l  GLN*     4.9    15.0    -      -       -      +
     79m  ALA      3.0    13.4    +      -       -      +
     80m  ASP*     3.3    15.7    -      -       -      +
     82m  ARG*     1.3    77.1    -      -       -      +
     84m  LEU*     1.3    62.7    +      -       -      +
     86m  ASN*     3.2    10.5    +      -       +      +
     87m  PHE*     3.0    21.8    +      -       -      +
    115m  LYS*     5.2     6.6    -      -       -      -
    128m  TYR*     3.5    33.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 84 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80m  ASP      3.0    12.7    +      -       -      +
     81m  ALA      3.8     3.1    -      -       -      +
     83m  LEU*     1.3    80.2    -      -       -      +
     85m  CYS*     1.3    57.6    +      -       -      +
     87m  PHE*     3.2     8.7    +      -       +      +
     88m  MET*     2.9    35.6    +      -       +      +
    112m  ILE*     4.2    12.1    -      -       +      -
    115m  LYS*     4.2    23.6    -      -       +      -
    116m  THR*     4.0    31.2    -      -       +      -
    128m  TYR*     4.2    16.8    -      -       +      -
    130m  VAL*     3.9    22.9    -      -       +      +
    132m  LEU*     3.9    29.2    -      -       +      -
    147m  THR*     5.6     1.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 85 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64m  LEU*     3.7    36.1    -      -       +      -
     65m  HIS      4.5     2.0    -      -       -      -
     66m  VAL*     4.6     4.0    -      -       -      -
     72m  ILE*     4.1     7.6    -      -       +      +
     81m  ALA      2.8    22.8    +      -       -      +
     82m  ARG*     3.6     9.4    -      -       -      +
     84m  LEU*     1.3    73.6    -      -       -      +
     86m  ASN*     1.3    56.5    +      -       -      +
     88m  MET*     3.2    12.8    +      -       -      +
     89m  ARG*     3.0    64.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 86 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118l  ASN*     4.9    15.2    +      -       -      +
     82m  ARG*     2.9    28.8    +      -       -      +
     83m  LEU*     3.6    11.7    +      -       +      +
     85m  CYS*     1.3    75.0    -      -       -      +
     87m  PHE*     1.3    59.1    +      -       -      +
     89m  ARG*     3.4    27.0    +      -       -      +
     90m  GLN*     2.9    29.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 87 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83m  LEU      3.0    12.9    +      -       -      +
     84m  LEU*     3.4    11.7    -      -       +      +
     86m  ASN*     1.3    77.0    -      -       -      +
     88m  MET*     1.3    63.5    +      -       +      +
     90m  GLN*     3.3    10.0    +      -       +      +
     91m  GLU*     2.9    60.9    +      -       +      +
    108m  LEU*     5.3     1.3    -      -       +      -
    111m  LEU*     4.1    35.7    -      -       +      -
    112m  ILE*     4.4     8.3    -      -       +      -
    115m  LYS*     3.5    48.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 88 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66m  VAL*     3.7    17.3    -      -       +      -
     70m  ILE*     4.7     0.2    -      -       +      -
     72m  ILE*     3.4    47.6    -      -       +      -
     84m  LEU      2.9    23.2    +      -       -      +
     85m  CYS*     3.2     6.7    +      -       -      +
     87m  PHE*     1.3    70.2    -      -       +      +
     89m  ARG*     1.3    67.5    +      -       -      +
     91m  GLU*     3.3     1.9    +      -       -      +
     92m  CYS*     3.0    29.1    +      -       -      -
    108m  LEU*     3.6    31.9    -      -       +      -
    112m  ILE*     3.4    39.3    -      -       +      -
    132m  LEU*     4.2     8.3    -      -       -      -
    134m  ILE*     4.2     8.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 89 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114l  GLN*     6.1     1.2    +      -       -      -
     64m  LEU*     4.6     9.1    -      -       -      +
     65m  HIS*     2.9    31.9    +      -       -      +
     66m  VAL*     3.8    29.6    -      -       -      +
     85m  CYS*     3.0    39.1    +      -       -      +
     86m  ASN*     3.6    23.3    +      -       -      +
     88m  MET*     1.3    77.0    -      -       -      +
     90m  GLN*     1.3    61.4    -      -       -      +
     92m  CYS*     3.3     4.2    +      -       -      +
     93m  LEU*     2.9    31.6    +      -       +      +
     77t  HIS*     3.8    49.3    +      -       +      +
     78t  SER*     5.6     0.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 90 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86m  ASN      2.9    18.2    +      -       -      +
     87m  PHE*     3.4    11.0    -      -       +      +
     89m  ARG*     1.3    77.4    -      -       -      +
     91m  GLU*     1.3    59.9    +      -       +      +
     93m  LEU*     3.2    20.2    +      -       -      +
     94m  ASP*     2.8    63.3    +      -       -      +
     74t  MET*     4.5    13.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 91 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87m  PHE*     2.9    52.9    +      -       +      +
     88m  MET      3.8     4.3    -      -       -      +
     90m  GLN*     1.3    75.4    -      -       +      +
     92m  CYS*     1.3    60.9    -      -       -      +
     94m  ASP*     3.3    19.4    +      -       -      +
     95m  SER*     3.0    27.5    +      -       -      -
    103m  LEU*     4.0    10.3    -      -       +      +
    108m  LEU*     4.3     4.7    -      -       +      -
    111m  LEU*     3.5    29.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with CYS 92 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66m  VAL*     3.9    17.3    -      -       -      +
     67m  ASP*     3.3    32.5    -      -       +      +
     69m  HIS*     4.6     3.8    -      -       -      -
     70m  ILE*     4.7     0.7    -      -       -      -
     88m  MET      3.0    21.3    +      -       -      +
     89m  ARG*     3.6     6.5    -      -       -      +
     91m  GLU*     1.3    78.1    -      -       -      +
     93m  LEU*     1.3    56.9    +      -       +      +
     95m  SER*     3.2     5.0    +      -       -      -
     96m  ARG*     2.9    32.5    +      -       -      +
    103m  LEU*     4.1    25.9    +      -       +      +
    108m  LEU*     4.2    10.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 93 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67m  ASP*     6.5     0.2    -      -       -      -
     89m  ARG*     2.9    23.9    +      -       +      +
     90m  GLN*     3.5    21.3    -      -       -      +
     92m  CYS*     1.3    76.1    -      -       +      +
     94m  ASP*     1.3    62.6    +      -       -      +
     96m  ARG*     3.2     7.0    +      -       -      +
     97m  PHE*     2.8    31.4    +      -       -      +
     70t  ALA*     4.0    33.4    -      -       +      +
     73t  LYS*     4.2    29.4    -      -       +      +
     74t  MET*     3.3    39.9    -      -       +      -
     77t  HIS*     6.3     2.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 94 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90m  GLN*     2.8    52.4    +      -       -      +
     91m  GLU*     3.5    23.7    -      -       -      +
     93m  LEU*     1.3    77.5    -      -       -      +
     95m  SER*     1.3    56.5    +      -       -      +
     97m  PHE*     3.2     7.1    +      -       -      +
     98m  VAL*     2.9    36.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 95 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91m  GLU      3.0    13.6    +      -       -      -
     92m  CYS      3.4     8.1    -      -       -      -
     94m  ASP*     1.3    77.6    -      -       -      +
     96m  ARG*     1.3    58.5    +      -       -      +
     98m  VAL*     5.0     0.2    -      -       -      -
     99m  PHE*     3.0    37.9    +      -       -      +
    100m  ASP      3.6     0.5    +      -       -      -
    101m  ARG*     3.3    32.1    +      -       -      +
    103m  LEU*     3.6    30.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 96 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67m  ASP*     2.9    38.0    +      -       -      +
     68m  ASN*     4.3    16.6    -      -       -      +
     69m  HIS*     3.8     6.3    +      -       -      +
     92m  CYS      2.9    17.5    +      -       -      +
     93m  LEU*     3.2     5.6    +      -       -      +
     95m  SER*     1.3    76.1    -      -       -      +
     97m  PHE*     1.4    60.3    +      -       -      +
    100m  ASP*     2.9    33.8    +      -       -      +
    101m  ARG*     4.1    12.3    -      -       -      +
    102m  PRO*     3.4    42.0    -      -       +      +
     66t  LYS*     5.1     4.3    -      -       -      +
     73t  LYS*     3.5    29.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 97 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93m  LEU*     2.8    15.6    +      -       +      +
     94m  ASP*     3.4    11.7    -      -       -      +
     96m  ARG*     1.4    79.9    -      -       -      +
     98m  VAL*     1.3    68.0    +      -       +      +
     63t  THR*     4.4    14.1    -      -       +      -
     66t  LYS*     4.0    25.9    -      -       +      +
     67t  ILE*     3.6    40.4    -      -       +      -
     70t  ALA*     5.2     9.2    -      -       +      -
     90u  SER*     4.0     3.3    +      -       -      -
     94u  ARG*     3.8    39.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 98 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94m  ASP*     2.9    18.6    +      -       +      +
     95m  SER*     5.0     0.2    -      -       -      -
     97m  PHE*     1.3    91.9    -      -       +      +
     99m  PHE*     1.3    74.8    +      -       +      +
     90u  SER*     2.8    14.6    +      -       -      +
     91u  TRP*     3.0    53.0    +      -       +      +
     94u  ARG*     4.4    10.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 99 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95m  SER*     3.0    20.7    +      -       -      +
     98m  VAL*     1.3    88.9    -      -       +      +
    100m  ASP*     1.3    69.7    +      -       -      +
    101m  ARG*     3.0    34.6    +      -       +      +
     70u  MET*     3.0    38.6    -      -       +      -
     83u  TYR*     3.2    33.9    -      +       -      -
     87u  ALA*     3.3    39.4    -      -       +      +
     88u  ILE*     5.4     1.3    -      -       +      -
     90u  SER*     3.5     5.6    -      -       -      -
     91u  TRP*     3.9    17.7    -      +       +      -
----------------------------------------------------------
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Residues in contact with ASP 100 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95m  SER      3.6     0.8    +      -       -      -
     96m  ARG*     2.9    27.7    +      -       -      +
     99m  PHE*     1.3    78.2    -      -       -      +
    101m  ARG*     1.3    58.5    +      -       -      +
    102m  PRO*     4.6     1.6    -      -       -      +
     66t  LYS*     5.2    11.9    -      -       -      -
     86u  ARG*     3.9    24.2    +      -       +      +
     90u  SER*     3.6    16.7    +      -       -      +
----------------------------------------------------------
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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