This report describes a bifunctional protein able to associate dissimilar materials. One domain of the protein adheres to metallic gold. The other domain contains a substrate for enzymatic biotin transfer. The protein is able to assemble micron-diameter gold and streptavidin-coated polystyrene spheres in a programmed manner. Both protein domains function independently and therefore can be fused to proteins displaying a variety of binding and assembly traits.
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Stanley Brown (2001) studied this question.
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