Journal
DALTON TRANSACTIONS
Volume 39, Issue 39, Pages 9245-9249Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/b921640e
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Funding
- Deutsche Forschungsgemeinschaft (DFG) [1420]
- Konrad Adenauer-Foundation
- European Commission
- Bundesministerium fur Bildung und Forschung Germany (Center of Excellence)
- International Human Frontier Science Program
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The sponge-restricted enzyme silicatein-alpha catalyzes in vivo silica formation from monomeric silicon compounds from sea water (i.e. silicic acid) and plays the pivotal role during synthesis of the siliceous sponge spicules. Recombinant silicatein-alpha, which was cloned from the demosponge Suberites domuncula (phylum Porifera), is shown to catalyze in vitro condensation of alkoxy silanes during a phase transfer reaction at neutral pH and ambient temperature to yield silicones like the straight-chained polydimethylsiloxane (PDMS). The reported condensation reaction is considered to be the first description of an enzymatically enhanced organometallic condensation reaction.
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