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I don't think it's clear that they actually bind, but it is clear that they inhibit (at least if they're functional) |
Added pRNA entry (see work of P. Guo at Purdue University). |
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The [[signal recognition particle]] (SRP) is an RNA-protein complex present in the cytoplasm of cells that binds to the mRNA of proteins that are destined for secretion from the cell. The RNA component of the SRP in eukaryotes is called 4.5S RNA.
====pRNA====
At least one species of DNA-containing [[phage]]s, phi-29, uses a complex of six identical short RNA sequences as mechanical components (utilizing [[ATP]] for energy) of its DNA packaging machinery. How common this phenomenon is has yet to be determined.
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