Newly synthesised lysosomal proteins are sorted from other cargo on the secretory pathway for delivery to endolysosomal compartments. A study now shows that the Batten disease protein, CLN8, acts as a recycling receptor to sort soluble lysosomal enzymes for export from the endoplasmic reticulum to the Golgi.
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Luzio, J.P. CLN8 safeguards lysosome biogenesis. Nat Cell Biol 20, 1333–1335 (2018). https://doi.org/10.1038/s41556-018-0240-y
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DOI: https://doi.org/10.1038/s41556-018-0240-y