Jan 23, 2014

An Improved Search Algorithm to Find G-Quadruplexes in Genome Sequences

BioRxiv : the Preprint Server for Biology
Anna VarizhukGalina Pozmogova


A growing body of data suggests that the secondary structures adopted by G-rich polynucleotides may be more diverse than previously thought and that the definition of G-quadruplex-forming sequences should be broadened. We studied solution structures of a series of naturally occurring and model single-stranded DNA fragments defying the G3+NL1G3+NL2G3+NL3G3+ formula, which is used in most of the current GQ-search algorithms. The results confirm the GQ-forming potential of such sequences and suggest the existence of new types of GQs. We developed an improved (broadened) GQ-search algorithm (<http://niifhm.ru/nauchnye-issledovanija/otdel-molekuljarnoj-biologii-i-genetiki/laboratorija-iskusstvennogo-antitelogeneza/497-2/>) that accounts for the recently reported new types of GQs.

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Mentioned in this Paper

Synapsin I
Genome Assembly Sequence
probe gene fragment
HLA-G3 Isoform
G-Quadruplexes, DNA

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