Cells package proteins into vesicles for secretion to the extracellular milieu. A study has now identified an enzyme that modifies the packaging machinery to encapsulate unusually large proteins, such as collagen. See Article p.495
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Stephens, D. Collagen secretion explained. Nature 482, 474–475 (2012). https://doi.org/10.1038/482474a
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DOI: https://doi.org/10.1038/482474a
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