... denseaccumulation of < /b> gold grains in < /b> the extraspicular space,reflecting dense packaging of < /b> silicatein molecules therealso. The silicatein molecules are arranged around thespicules in < /b> concentric rings ... silicatein gene, and, after expres-sion of < /b> silicatein and subsequent incubation with silicicacid, the bacteria had been encapsulated with bio-sil-ica, a viscous cover, which did not reduce their ... silicatein (B) , a distinct increase in < /b> chain lengthcan be observed. The distance of < /b> 7 4–7 < /b> 5 Da between each individ-ual peak corresponds to the mass of < /b> a single Si(Me)2-O unit; oligo-meric polymerization...