Cells can reuse the chemical messengers that carry genetic information to the machinery that makes proteins. Sometimes cells shuttle the messengers to storage and later reactivate them to make proteins, according to new research.
This image shows P-bodies, in red, surrounding the nucleus of a human tumor cell. The red color indicates that the P-bodies contain the protein RCK. Photo credit: John Bloom.
Learning how cells regulate the newly discovered "mRNA cycle" may provide insights into how the cellular machinery runs amok in diseases like cancer.
Scientists had previously thought the messenger molecules, known as mRNAs, were manufactured, used, decommissioned and then sent on a one-way journey to the garbage dump.
Mari N. Jensen | EurekAlert!
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