Contacts of the helix formed by residues 228 - 249 (chain K) in PDB entry 1F1H


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 MET 228 (chain K).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108K  ALA*     3.3    38.1    -      -       +      +
    111K  ALA*     4.1     7.9    -      -       +      -
    112K  GLU*     3.8    20.0    +      -       +      +
    124K  VAL*     3.0    14.9    +      -       +      -
    126K  PHE*     3.5    41.7    -      -       +      -
    226K  ASN      3.5     0.8    +      -       -      -
    227K  THR*     1.3    74.1    -      -       -      +
    229K  THR*     1.3    65.3    +      -       -      +
    231K  LYS*     3.2     2.9    +      -       -      +
    232K  ALA*     3.1    16.8    +      -       -      +
    371K  PHE*     3.6    35.3    -      -       +      +
    372K  ALA*     3.7    16.4    -      -       -      +
    375K  LEU*     4.2    13.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 229 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105K  ARG*     4.3    14.6    -      -       +      +
    108K  ALA*     3.4    37.7    +      -       +      +
    109K  LYS*     3.7    26.1    +      -       +      -
    112K  GLU*     3.1    21.9    +      -       -      +
    228K  MET*     1.3    75.3    -      -       -      +
    230K  LYS*     1.3    64.6    +      -       -      +
    232K  ALA*     3.1     7.8    +      -       -      +
    233K  ASP*     3.1    22.9    +      -       -      +
    368K  TYR*     4.3    11.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 230 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72K  SER*     5.7     7.2    +      -       -      -
    112K  GLU*     4.6     0.2    +      -       -      -
    226K  ASN*     3.4    29.4    -      -       -      +
    227K  THR*     3.2    20.7    +      -       -      +
    229K  THR*     1.3    77.3    -      -       -      +
    231K  LYS*     1.3    58.0    +      -       -      +
    233K  ASP*     3.1    19.0    -      -       +      +
    234K  GLU*     2.9    35.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 231 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126K  PHE*     3.4    25.4    -      -       +      +
    128K  PRO*     3.3    36.1    -      -       +      -
    204K  LEU*     5.0     0.8    -      -       -      +
    223K  THR*     3.1    26.6    +      -       -      -
    224K  ARG      2.8    22.2    +      -       -      +
    226K  ASN*     4.0    16.7    -      -       +      +
    227K  THR      2.8    16.5    +      -       -      +
    228K  MET      3.5     5.2    -      -       -      +
    230K  LYS*     1.3    77.9    -      -       -      +
    232K  ALA*     1.3    57.2    +      -       -      +
    234K  GLU*     2.8    34.8    +      -       +      +
    235K  ILE*     2.9    31.8    +      -       -      +
    371K  PHE*     4.1     2.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 232 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228K  MET      3.1     7.8    +      -       -      +
    229K  THR*     3.1     5.1    +      -       -      +
    231K  LYS*     1.3    74.4    -      -       -      +
    233K  ASP*     1.3    63.8    +      -       -      +
    235K  ILE*     3.3     3.9    +      -       -      +
    236K  GLN*     3.2    25.8    +      -       -      +
    367K  PRO*     3.7    21.9    -      -       +      +
    368K  TYR*     3.3    37.7    -      -       +      +
    371K  PHE*     3.8    18.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 233 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73K  THR*     4.3     6.0    -      -       +      +
     88K  ARG*     3.4    20.2    +      -       -      +
    105K  ARG*     2.9    34.3    +      -       -      -
    229K  THR*     3.1    15.2    +      -       -      +
    230K  LYS*     3.1    19.3    +      -       +      +
    232K  ALA*     1.3    78.1    -      -       -      +
    234K  GLU*     1.3    63.8    +      -       +      +
    236K  GLN*     3.0    15.5    +      -       -      +
    237K  ILE*     3.0    20.9    +      -       +      +
    368K  TYR*     2.6    34.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 234 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    203K  GLY      4.0    14.1    -      -       -      +
    204K  LEU*     3.8    30.6    -      -       +      +
    205K  VAL      5.3     1.2    +      -       -      -
    224K  ARG*     3.9     4.9    +      -       -      +
    226K  ASN*     3.0    27.8    +      -       -      -
    230K  LYS*     2.9    22.9    +      -       +      +
    231K  LYS*     2.8    40.8    +      -       +      +
    233K  ASP*     1.3    77.1    -      -       +      +
    235K  ILE*     1.3    51.3    +      -       -      +
    237K  ILE*     3.1    13.0    +      -       +      +
    238K  TYR*     2.6    36.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 235 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128K  PRO*     3.9    30.7    -      -       +      -
    130K  PRO*     3.8    30.7    -      -       +      -
    223K  THR*     5.8     1.3    -      -       -      +
    231K  LYS*     2.9    20.2    +      -       +      +
    232K  ALA      3.5     8.1    -      -       -      +
    233K  ASP      3.2     0.2    -      -       -      -
    234K  GLU*     1.3    75.5    -      -       -      +
    236K  GLN*     1.3    63.8    +      -       -      +
    238K  TYR*     3.3     8.3    -      -       +      +
    239K  LYS*     2.8    44.9    +      -       +      +
    268K  MET*     4.2    10.5    -      -       +      -
    365K  ALA      5.7     0.4    -      -       -      +
    367K  PRO*     3.8    23.8    -      -       +      -
    371K  PHE*     4.2    10.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 236 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22K  THR*     2.8    29.4    +      -       -      +
     26K  GLY      3.1    27.7    +      -       -      +
     28K  GLU*     3.2    35.3    -      -       -      +
     88K  ARG*     3.7    17.9    -      -       -      +
    232K  ALA      3.2    13.0    +      -       -      +
    233K  ASP      3.0     8.5    +      -       -      +
    235K  ILE*     1.3    79.0    -      -       -      +
    237K  ILE*     1.3    55.9    +      -       -      +
    239K  LYS*     3.5    21.6    +      -       -      +
    240K  TYR*     3.0    22.0    +      -       -      +
    367K  PRO*     3.7    16.5    -      -       +      +
    368K  TYR*     4.1    10.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 237 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28K  GLU*     5.1     1.8    -      -       -      +
     73K  THR      5.9     1.1    -      -       -      +
     75K  VAL*     5.0    12.1    -      -       +      -
     88K  ARG*     3.8    21.1    -      -       -      +
    199K  MET*     5.2     0.4    -      -       -      +
    202K  MET*     3.8    49.4    -      -       +      +
    204K  LEU*     3.6    25.6    -      -       +      -
    233K  ASP*     3.0    21.2    +      -       +      +
    234K  GLU*     3.5    11.0    -      -       +      +
    236K  GLN*     1.3    72.1    -      -       -      +
    238K  TYR*     1.3    59.4    +      -       -      +
    240K  TYR*     3.2     7.3    +      -       -      +
    241K  VAL*     2.9    32.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 238 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130K  PRO*     2.9    44.4    +      -       +      -
    132K  PHE*     3.6     6.6    -      +       -      -
    199K  MET*     3.5    31.8    -      -       +      +
    204K  LEU*     4.2     7.2    -      -       +      -
    221K  VAL*     2.9    46.3    +      -       +      -
    223K  THR*     4.0    17.5    -      -       +      -
    234K  GLU      2.6    21.3    +      -       -      +
    235K  ILE*     3.3    13.5    -      -       +      +
    237K  ILE*     1.3    73.8    -      -       -      +
    239K  LYS*     1.3    67.6    +      -       +      +
    241K  VAL*     3.2     2.6    +      -       -      +
    242K  VAL*     2.9    36.9    +      -       +      +
    255K  PHE*     3.8    22.9    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 239 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    468E  VAL*     3.3    31.4    +      -       -      +
     26K  GLY*     4.1     9.5    +      -       -      -
     27K  LYS*     6.1     0.4    -      -       -      +
    235K  ILE*     2.8    31.7    +      -       +      +
    236K  GLN*     3.8    28.8    +      -       -      +
    238K  TYR*     1.3    72.9    -      -       +      +
    240K  TYR*     1.3    58.3    +      -       -      +
    242K  VAL*     3.8     0.3    -      -       -      +
    243K  HIS*     2.9    43.6    +      -       +      +
    255K  PHE*     3.7    36.6    -      -       +      -
    268K  MET*     6.4     0.4    -      -       -      -
    363K  PRO*     3.2    27.7    +      -       -      -
    364K  ALA      5.0     2.4    +      -       -      -
    365K  ALA      4.0    11.9    +      -       -      -
    367K  PRO*     4.5     1.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 240 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20K  ARG*     3.4    28.0    +      -       -      +
     28K  GLU*     3.9     6.9    +      -       -      +
     77K  ASP*     2.6    32.5    +      -       -      -
     79K  PHE*     3.4    26.1    -      +       -      +
     80K  PHE*     3.2    20.3    -      -       -      -
    202K  MET*     4.3    17.7    -      -       +      -
    236K  GLN      3.0    15.8    +      -       -      +
    237K  ILE*     3.2    10.1    +      -       -      +
    239K  LYS*     1.3    76.7    -      -       -      +
    241K  VAL*     1.3    60.1    +      -       -      +
    243K  HIS*     3.8     3.5    -      -       -      +
    244K  ASN*     2.9    58.5    +      -       -      +
    182L  VAL*     4.1    12.8    -      -       +      -
    183L  PRO*     3.7    24.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 241 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79K  PHE*     4.1     8.3    -      -       +      -
    195K  MET*     3.6    28.7    -      -       +      +
    198K  VAL*     3.8    15.7    -      -       +      -
    199K  MET*     3.8    18.6    -      -       +      -
    202K  MET*     3.6    29.2    -      -       -      -
    237K  ILE*     2.9    21.2    +      -       +      +
    238K  TYR      3.8     3.1    -      -       -      +
    240K  TYR*     1.3    76.1    -      -       +      +
    242K  VAL*     1.3    59.6    +      -       -      +
    245K  VAL*     2.8    52.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 242 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    132K  PHE*     3.8    32.1    -      -       +      -
    195K  MET*     3.7    13.9    -      -       +      +
    199K  MET*     3.6    20.4    -      -       +      -
    238K  TYR*     2.9    37.8    +      -       +      +
    239K  LYS      3.8     3.4    -      -       -      +
    241K  VAL*     1.3    75.2    -      -       -      +
    243K  HIS*     1.3    64.9    +      -       -      +
    246K  ALA*     3.0    27.5    +      -       -      +
    253K  ALA*     3.7    19.5    -      -       +      -
    255K  PHE*     3.7    17.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 243 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    467E  SER      4.3     0.7    -      -       -      -
    468E  VAL      3.5    23.8    +      -       -      -
     27K  LYS*     3.8    21.7    +      -       -      -
    239K  LYS*     2.9    29.6    +      -       +      +
    240K  TYR*     3.8     4.6    -      -       -      +
    242K  VAL*     1.3    74.1    -      -       -      +
    244K  ASN*     1.3    58.0    +      -       -      +
    246K  ALA*     3.5     3.1    -      -       -      +
    247K  HIS*     3.0    26.8    +      -       -      +
    252K  THR*     5.8     0.3    -      -       -      -
    253K  ALA*     3.2    36.3    +      -       +      -
    254K  THR*     4.6     1.6    -      -       -      -
    255K  PHE*     3.7    20.7    -      +       -      -
    171L  HIS*     3.7    20.5    -      +       -      -
    183L  PRO      5.1     0.4    -      -       -      +
    184L  PRO*     3.8    24.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 244 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79K  PHE*     3.5    35.0    -      -       +      +
     80K  PHE*     6.0     0.4    -      -       -      -
    240K  TYR*     2.9    39.9    +      -       -      +
    243K  HIS*     1.3    75.3    -      -       -      +
    245K  VAL*     1.3    58.9    +      -       -      +
    246K  ALA      3.2     0.9    -      -       -      -
    247K  HIS*     3.6    10.3    -      -       -      +
    248K  ARG*     3.0    28.2    +      -       -      +
    183L  PRO*     3.2    30.0    -      -       -      +
    184L  PRO*     3.6    21.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 245 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79K  PHE*     3.8    17.5    -      -       +      -
    191K  ILE*     4.1     4.7    -      -       +      +
    194K  GLU*     4.1    12.3    -      -       +      +
    195K  MET*     3.7    28.7    -      -       +      -
    198K  VAL*     4.4    10.1    -      -       +      -
    241K  VAL*     2.8    41.8    +      -       +      +
    242K  VAL      4.3     0.2    -      -       -      +
    244K  ASN*     1.3    70.1    -      -       -      +
    246K  ALA*     1.3    67.6    +      -       -      +
    248K  ARG*     3.2    10.3    +      -       -      +
    249K  PHE*     3.0    45.3    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 246 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134K  LEU*     3.8    26.9    -      -       +      -
    191K  ILE*     5.0     1.8    -      -       -      -
    195K  MET*     4.2     5.5    -      -       +      +
    242K  VAL      3.0    18.7    +      -       -      +
    243K  HIS      3.5     4.7    -      -       -      +
    245K  VAL*     1.3    77.6    -      -       -      +
    247K  HIS*     1.3    64.3    +      -       -      +
    249K  PHE*     2.9    10.6    +      -       -      -
    251K  LYS*     2.9    34.8    +      -       +      +
    253K  ALA*     3.9    16.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 247 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    243K  HIS      3.0    15.4    +      -       -      +
    244K  ASN*     3.6    13.9    -      -       -      +
    245K  VAL      3.2     0.2    -      -       -      -
    246K  ALA*     1.3    79.4    -      -       -      +
    248K  ARG*     1.3    59.9    +      -       -      +
    250K  GLY*     3.0    20.6    +      -       -      -
    251K  LYS      3.4    13.2    +      -       -      +
    252K  THR*     5.3     0.2    -      -       -      +
    169L  LYS*     4.7    21.3    -      -       +      +
    171L  HIS*     6.1     1.6    -      -       -      -
    184L  PRO*     4.2    26.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 248 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78K  PRO*     4.2    11.1    +      -       -      +
     79K  PHE*     3.7    33.1    -      -       +      +
    194K  GLU*     2.9    31.5    +      -       -      -
    198K  VAL*     4.5     9.1    -      -       -      +
    244K  ASN      3.0    18.1    +      -       -      +
    245K  VAL*     3.2    10.6    +      -       -      +
    247K  HIS*     1.3    79.1    -      -       +      +
    249K  PHE*     1.3    75.5    +      -       -      +
    250K  GLY      3.4     0.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 249 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    190K  ASP*     4.4    10.3    -      -       +      -
    191K  ILE*     3.7    41.1    -      -       +      -
    194K  GLU*     3.7    28.7    -      -       +      -
    245K  VAL*     3.0    35.9    +      -       +      +
    246K  ALA      2.9    11.0    +      -       -      +
    248K  ARG*     1.3    93.3    -      -       +      +
    250K  GLY*     1.3    62.2    +      -       -      +
    251K  LYS*     3.6    15.5    +      -       +      +
----------------------------------------------------------
 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