Hydrogen bonding and packing density are factors most strongly connected to limiting sites of high flexibility in the 16S rRNA in the 30S ribosome.

BMC Struct Biol · 2009 · PMC2731775 · PMID 19643000

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closest p

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not quite significantno p-value reported

For the UV sites, the differences between the reactive and unreactive sites are smaller and are not quite significant for the 8 Å cut-off distance.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.