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2016 ; 17
(1
): 438
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An analysis of simple computational strategies to facilitate the design of
functional molecular information processors
#MMPMID27793081
Lee Y
; Roslan R
; Azizan S
; Firdaus-Raih M
; Ramlan EI
BMC Bioinformatics
2016[Oct]; 17
(1
): 438
PMID27793081
show ga
BACKGROUND: Biological macromolecules (DNA, RNA and proteins) are capable of
processing physical or chemical inputs to generate outputs that parallel
conventional Boolean logical operators. However, the design of functional modules
that will enable these macromolecules to operate as synthetic molecular computing
devices is challenging. RESULTS: Using three simple heuristics, we designed RNA
sensors that can mimic the function of a seven-segment display (SSD). Ten
independent and orthogonal sensors representing the numerals 0 to 9 are designed
and constructed. Each sensor has its own unique oligonucleotide binding site
region that is activated uniquely by a specific input. Each operator was
subjected to a stringent in silico filtering. Random sensors were selected and
functionally validated via ribozyme self cleavage assays that were visualized via
electrophoresis. CONCLUSIONS: By utilising simple permutation and randomisation
in the sequence design phase, we have developed functional RNA sensors thus
demonstrating that even the simplest of computational methods can greatly aid the
design phase for constructing functional molecular devices.