RNA-stabilized protein nanorings: high-precision adapters for biohybrid design
作者： Klara Altintoprak , Axel Seidenstücker , Peter Krolla-Sidenstein , Alfred Plettl , Holger Jeske
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摘要: The equipment of technical devices with biogenic adapter structures enables effective integration biofunctional units into advanced sensor, filtration or catalytic layouts. Plant virus-derived self-organizing supramolecular complexes are among the most promising soft-matter adapters due to their multivalence on nanometer scale, precise dimensions, high availability and compatibility routine conjugation chemistry. Bioengineering can tailor both templates’ shapes coupling sites has been applied here develop nucleoprotein ‘nanorings’ made tobacco mosaic virus (TMV) building blocks. Short RNA-scaffolded four-turn helices ≈68 protein subunits ≈9 nm length, 18 nm outer 4 nm inner diameters, were generated efficiently in vitro. A structure-directing single-stranded 204-nucleotide ribonucleic acid containing TMV origin assembly-yielded colloidal preparations that have structural integrity well dispersed a pH range from about 7 9. Two selectively a...
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