Contacts of the helix formed by residues 108 - 138 (chain B) in PDB entry 4TKR
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.
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 GLN 108 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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103B ASN* 2.7 34.5 + - - +
106B ALA* 3.5 28.9 + - + +
107B ASN* 1.3 70.4 - - - +
109B LEU* 1.3 59.0 + - - +
110B LYS 3.4 2.9 - - - -
111B LYS* 3.4 28.6 + - + +
112B ALA* 3.0 27.5 + - - +
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Residues in contact with LEU 109 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
104B LEU* 4.2 11.9 - - + -
107B ASN* 3.2 10.8 + - - +
108B GLN* 1.3 74.9 - - - +
110B LYS* 1.3 64.0 + - - +
112B ALA* 3.2 4.5 + - + +
113B ILE* 3.0 51.2 + - + +
176B LEU* 3.7 31.9 - - + +
177B LYS* 3.6 39.5 - - + +
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Residues in contact with LYS 110 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
108B GLN 3.4 0.6 - - - -
109B LEU* 1.3 80.2 - - - +
111B LYS* 1.3 66.1 + - + +
113B ILE* 3.3 8.5 + - - +
114B GLU* 3.1 49.7 + - + +
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Residues in contact with LYS 111 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
103B ASN* 3.3 25.1 - - - +
108B GLN* 3.4 28.6 + - + +
109B LEU 3.4 0.2 - - - -
110B LYS* 1.3 80.0 - - + +
112B ALA* 1.3 65.3 + - - +
114B GLU* 3.3 16.0 + - - +
115B TRP* 3.1 36.2 + - + +
308B BGL 4.8 21.1 - - - +
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Residues in contact with ALA 112 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
100B VAL* 3.8 32.1 - - + +
103B ASN* 3.7 10.7 - - + +
104B LEU* 3.8 19.5 - - + +
108B GLN 3.0 17.9 + - - +
109B LEU* 3.5 9.9 - - + +
111B LYS* 1.3 78.1 - - - +
113B ILE* 1.3 57.8 + - - +
115B TRP* 3.5 1.2 + - - +
116B ALA* 3.0 27.6 + - - +
176B LEU* 4.4 3.6 - - + -
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Residues in contact with ILE 113 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
109B LEU* 3.0 37.5 + - + +
110B LYS* 3.7 7.6 - - - +
112B ALA* 1.3 73.2 - - - +
114B GLU* 1.3 60.9 + - - +
116B ALA* 3.2 6.7 + - - +
117B TRP* 2.9 50.1 + - + +
173B SER* 3.6 33.9 - - - +
176B LEU* 3.8 16.2 - - + -
177B LYS* 5.8 0.7 - - + -
306B BGL 4.1 17.3 - - + -
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Residues in contact with GLU 114 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
110B LYS* 3.1 44.4 + - + +
111B LYS* 3.6 15.8 - - - +
113B ILE* 1.3 76.7 - - + +
115B TRP* 1.3 61.4 + - - +
117B TRP* 3.5 0.7 + - - +
118B GLY* 3.3 9.5 + - - -
306B BGL 3.2 72.7 + - + +
308B BGL 3.2 25.9 + - - +
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Residues in contact with TRP 115 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
96B PHE* 3.7 45.5 - + - +
99B GLN* 3.4 34.7 - - + +
100B VAL* 3.7 18.8 - - + +
103B ASN* 3.5 26.6 + - - +
111B LYS* 3.1 30.8 + - + +
112B ALA 3.9 1.1 - - - +
114B GLU* 1.3 73.8 - - - +
116B ALA* 1.3 60.2 - - - +
118B GLY* 3.2 2.3 + - - -
119B THR* 2.9 30.5 + - - -
308B BGL 3.5 65.1 + - - -
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Residues in contact with ALA 116 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
47B ILE* 4.4 10.3 - - + -
100B VAL* 3.6 13.2 - - + +
112B ALA 3.0 19.1 + - - +
113B ILE* 3.3 6.7 - - + +
115B TRP* 1.3 77.6 - - - +
117B TRP* 1.3 57.3 + - + +
119B THR* 3.2 5.9 - - - +
120B MET* 2.9 46.7 + - + +
172B ILE* 4.8 0.2 - - + -
176B LEU* 3.8 21.5 - - + -
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Residues in contact with TRP 117 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
113B ILE* 2.9 36.3 + - + +
114B GLU 3.9 4.7 - - - +
115B TRP 3.3 0.2 - - - -
116B ALA* 1.3 73.2 - - - +
118B GLY* 1.3 60.9 + - - +
120B MET* 3.7 11.4 - - + +
121B ILE* 2.9 40.8 + - + +
165B VAL* 3.6 28.9 - - + -
166B LEU* 3.8 9.6 - - - -
169B GLY* 3.4 32.1 - - - -
170B ILE* 3.6 8.5 - - + -
173B SER* 2.9 19.3 + - - -
306B BGL 3.5 37.6 - - + +
307B BGL 4.4 7.4 - - + -
310B BGL 3.7 57.7 - - + -
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Residues in contact with GLY 118 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
96B PHE* 4.0 9.6 - - - -
114B GLU 3.3 8.3 + - - -
115B TRP* 3.2 6.5 + - - -
117B TRP* 1.3 79.1 - - - +
119B THR* 1.3 59.5 + - - +
121B ILE* 3.9 2.1 - - - +
122B ILE* 3.2 30.3 + - - +
306B BGL 4.2 5.1 + - - -
308B BGL 4.2 27.0 - - - +
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Residues in contact with THR 119 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
43B TYR* 6.0 0.2 - - + -
47B ILE* 4.5 11.4 - - + -
92B PHE 3.5 0.3 - - - +
93B SER* 2.5 52.2 + - - +
94B GLY* 3.7 0.5 - - - -
95B VAL* 3.3 6.1 + - - -
96B PHE* 3.2 36.9 + - - -
97B SER* 5.3 0.4 - - - +
100B VAL* 4.5 8.3 - - + -
115B TRP 2.9 14.7 + - - +
116B ALA* 3.2 23.1 - - - +
118B GLY* 1.3 76.2 - - - +
120B MET* 1.3 65.5 + - + +
122B ILE 4.2 0.4 - - - -
123B GLY 3.3 6.9 + - - -
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Residues in contact with MET 120 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
43B TYR* 2.8 68.3 + - + -
47B ILE* 5.6 1.6 - - + -
116B ALA* 2.9 45.9 + - + +
117B TRP* 3.7 18.6 - - + +
118B GLY 3.2 0.2 - - - -
119B THR* 1.3 82.3 - - + +
121B ILE* 1.3 59.5 - - - +
124B GLY* 3.0 16.3 + - - -
165B VAL* 4.1 10.2 - - + +
169B GLY* 3.6 35.9 - - - +
172B ILE* 3.7 19.7 - - + -
173B SER* 4.7 0.9 - - - +
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Residues in contact with ILE 121 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
117B TRP* 2.9 24.8 + - + +
118B GLY* 3.9 3.8 - - - +
120B MET* 1.3 73.2 - - - +
122B ILE* 1.3 67.2 + - - +
124B GLY* 3.2 1.6 + - - -
125B VAL* 2.9 41.1 + - + +
165B VAL* 3.9 23.4 - - + +
307B BGL 4.2 19.5 - - + -
308B BGL 4.2 21.1 - - + -
309B BGL 5.0 9.4 - - + -
310B BGL 3.8 31.4 - - + -
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Residues in contact with ILE 122 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
92B PHE* 3.6 31.9 - - + +
95B VAL* 3.9 13.5 - - + -
96B PHE* 3.9 26.7 - - + -
118B GLY 3.2 16.6 + - - +
119B THR 4.4 0.2 - - - +
121B ILE* 1.3 77.9 - - + +
123B GLY* 1.3 57.6 + - - +
125B VAL* 3.4 5.3 + - - +
126B ALA* 2.9 28.3 + - + +
308B BGL 4.5 18.2 - - + -
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Residues in contact with GLY 123 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
39B MET* 4.8 2.3 - - - +
43B TYR* 4.8 0.2 - - - -
89B PHE 3.8 5.4 - - - +
90B ILE* 4.5 1.6 - - - -
92B PHE* 3.4 6.7 + - - -
93B SER* 3.4 39.5 + - - -
119B THR 3.3 9.2 + - - -
120B MET 4.1 0.2 - - - -
121B ILE 3.3 0.4 - - - -
122B ILE* 1.3 77.9 - - - +
124B GLY* 1.3 62.1 + - - +
126B ALA* 3.3 2.9 + - - +
127B ARG* 3.2 21.3 + - - +
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Residues in contact with GLY 124 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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39B MET* 4.5 8.1 - - - -
43B TYR* 3.9 10.4 + - - -
120B MET 3.0 16.0 + - - -
121B ILE 3.7 2.7 - - - -
123B GLY* 1.3 73.5 - - - +
125B VAL* 1.3 59.3 + - - +
127B ARG* 3.3 2.4 + - - +
128B TYR* 3.0 38.7 + - - -
161B CYS* 3.8 7.6 - - - -
164B THR* 6.6 0.2 - - - -
165B VAL* 4.2 10.3 - - - -
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Residues in contact with VAL 125 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
302A BGL 5.5 6.7 - - + -
121B ILE* 2.9 33.8 + - + +
122B ILE* 3.8 6.1 - - - +
124B GLY* 1.3 74.9 - - - +
126B ALA* 1.3 63.0 + - - +
128B TYR 3.8 0.6 - - - +
129B PHE* 3.0 25.9 + - + +
161B CYS* 4.0 15.2 - - - -
304B BGL 4.2 20.8 - - + +
309B BGL 4.5 14.4 - - + -
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Residues in contact with ALA 126 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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302A BGL 4.0 19.1 - - + +
89B PHE* 3.2 37.6 - - + +
92B PHE* 3.8 22.2 - - + -
122B ILE* 2.9 19.4 + - + +
123B GLY 3.5 2.5 - - - +
124B GLY 3.2 0.4 - - - -
125B VAL* 1.3 79.4 - - - +
127B ARG* 1.3 58.8 + - - +
129B PHE* 3.8 4.3 - - - +
130B TRP* 3.4 13.3 + - - -
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Residues in contact with ARG 127 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
36B SER* 3.3 20.8 + - - -
39B MET* 3.4 32.6 - - + +
61B TRP* 3.6 5.5 - - - -
86B ALA* 3.3 40.6 - - - +
87B PHE* 3.5 24.1 - - - +
89B PHE* 4.1 0.6 + - - -
90B ILE* 4.3 14.1 - - + -
123B GLY 3.2 11.7 + - - +
124B GLY* 3.7 6.7 - - - +
126B ALA* 1.3 75.0 - - - +
128B TYR* 1.3 79.9 + - - +
129B PHE 3.0 9.8 + - - -
130B TRP* 3.1 12.8 + - - +
131B HIS* 3.1 27.6 + - + +
301B TPP 3.2 32.1 + - - -
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Residues in contact with TYR 128 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
34B SER 4.1 5.0 + - - -
36B SER* 3.8 14.7 - - - -
39B MET* 5.4 1.3 - - + -
124B GLY* 3.0 30.0 + - - +
125B VAL 3.8 0.4 - - - -
127B ARG* 1.3 102.9 + - - +
129B PHE* 1.3 58.9 + - - +
130B TRP 3.3 0.4 - - - -
131B HIS* 3.7 26.9 - + + +
132B TYR* 3.0 27.9 + - - +
157B ASN* 3.6 18.8 - - + +
160B SER* 3.7 27.7 + - - -
161B CYS* 3.6 17.9 - - + -
164B THR* 3.2 27.8 + - + -
165B VAL* 6.1 0.2 - - + -
301B TPP 4.6 9.2 + - - -
304B BGL 3.6 24.0 - - + +
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Residues in contact with PHE 129 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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51A PHE* 3.7 31.0 - + - -
52A TRP* 4.0 14.8 - + + -
302A BGL 3.9 39.3 - - + -
125B VAL* 3.0 18.2 + - + +
126B ALA 3.8 7.4 - - - +
127B ARG 3.0 0.2 + - - -
128B TYR* 1.3 77.4 - - - +
130B TRP* 1.3 79.4 + + - +
132B TYR* 3.3 5.4 + + - +
133B VAL* 2.9 49.3 + - + +
304B BGL 4.0 53.4 - - + -
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Residues in contact with TRP 130 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
51A PHE* 3.8 20.4 - + - -
52A TRP* 3.3 51.6 - + + -
55A GLY* 4.0 14.6 - - - -
56A PHE* 5.3 0.4 - - + -
91A ALA* 4.1 4.3 - - + -
81B ILE* 3.7 19.6 - - + +
82B GLU* 4.8 0.4 - - - +
85B LEU* 3.6 30.3 - - + -
86B ALA* 3.7 31.4 - - + -
89B PHE* 3.4 38.7 - + - -
126B ALA 3.4 17.0 + - - -
127B ARG 3.1 4.7 + - - -
129B PHE* 1.3 85.4 - + - +
131B HIS* 1.3 61.8 + - - +
133B VAL* 3.6 7.0 - - + +
134B ALA* 2.9 29.8 + - - +
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Residues in contact with HIS 131 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
82B GLU* 3.0 48.4 + - - +
86B ALA* 3.5 10.6 - - + +
87B PHE* 4.3 0.7 - + - -
127B ARG* 3.1 37.8 + - + -
128B TYR* 3.5 25.9 + + + +
129B PHE 3.3 0.2 - - - -
130B TRP* 1.3 74.6 - - - +
132B TYR* 1.3 61.3 + - - +
135B GLY 2.9 22.0 + - - -
157B ASN* 3.2 21.6 + - - +
301B TPP 3.0 50.7 + + + +
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Residues in contact with TYR 132 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
128B TYR 3.0 14.5 + - - +
129B PHE* 3.4 11.9 - + - +
130B TRP 3.3 0.2 - - - -
131B HIS* 1.3 75.4 - - - +
133B VAL* 1.3 73.7 + - + +
136B VAL* 3.1 24.4 + - + +
150B GLN* 2.4 45.1 + - - -
153B SER* 2.5 31.3 + - - -
154B ILE* 3.7 28.0 - - + -
157B ASN* 3.3 12.5 - - + +
304B BGL 3.5 70.4 + - + -
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Residues in contact with VAL 133 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
52A TRP* 3.9 34.5 - - + -
81B ILE* 4.9 8.3 - - + -
129B PHE* 2.9 49.5 + - + +
130B TRP* 3.6 11.7 - - + +
132B TYR* 1.3 86.6 - - + +
134B ALA* 1.3 58.3 + - - +
136B VAL* 3.2 6.7 + - - +
137B LEU* 3.0 47.1 + - + +
304B BGL 5.3 1.8 - - - +
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Residues in contact with ALA 134 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
81B ILE* 4.2 8.1 - - + -
82B GLU* 3.5 35.4 - - + +
130B TRP 2.9 18.1 + - - +
131B HIS 4.0 0.2 - - - +
133B VAL* 1.3 74.6 - - - +
135B GLY* 1.3 57.4 + - - +
138B PHE* 2.7 59.1 + - + +
139B TRP* 3.4 3.6 - - + -
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Residues in contact with GLY 135 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
131B HIS 2.9 10.5 + - - -
133B VAL 3.2 0.6 - - - -
134B ALA* 1.3 77.8 - - - +
136B VAL* 1.3 57.3 + - - +
139B TRP* 3.2 32.7 + - - +
140B GLY* 3.7 0.9 + - - -
149B ALA 4.1 3.5 - - - +
152B PHE* 5.7 0.5 - - - -
153B SER* 3.3 22.5 - - - -
301B TPP 3.3 24.4 + - - +
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Residues in contact with VAL 136 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
5A ARG* 3.2 23.4 + - - +
132B TYR* 3.1 34.0 + - + +
133B VAL* 3.6 6.3 - - - +
135B GLY* 1.3 77.6 - - - +
137B LEU* 1.3 65.2 + - + +
138B PHE 3.6 0.2 + - - -
140B GLY* 4.9 1.6 + - - -
149B ALA* 3.5 19.6 - - + +
150B GLN* 3.7 29.4 - - + +
153B SER* 3.6 13.9 - - - -
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Residues in contact with LEU 137 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
5A ARG* 3.4 55.2 + - + +
8A ILE* 5.9 2.5 - - + -
9A LEU* 4.4 6.5 - - + -
52A TRP* 3.6 43.5 - - + -
81B ILE* 4.2 5.4 - - + -
133B VAL* 3.0 28.9 + - + +
136B VAL* 1.3 82.8 - - + +
138B PHE* 1.3 93.5 + - + +
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Residues in contact with PHE 138 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
9A LEU* 4.0 21.1 - - + -
74B LEU* 4.4 15.9 - - + +
75B MET* 3.7 28.7 - - + -
77B SER* 3.4 29.4 - - - -
78B GLN* 3.4 35.9 - - + -
81B ILE* 3.9 18.2 - - + -
134B ALA* 2.7 34.0 + - + +
136B VAL 3.4 0.2 - - - -
137B LEU* 1.3 95.9 - - + +
139B TRP* 1.3 64.7 + - + +
140B GLY 3.2 8.9 + - - -
141B ALA* 4.5 4.5 + - - +
142B TYR* 5.1 2.3 - - - -
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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