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Partially deglycosylated plasma glycoproteins and immunoglobulin IgA2 allotypes are efficiently and specificallyremoved from circulation by a receptor-mediated process. The asialoglycoprotein receptor binds to desialylated(galactosyl-terminal) glycoproteins. It transports these glycoproteins via a series of membrane vesicles and tubulesto an acidic-sorting organelle where the receptor and ligand dissociate. Then the receptor is recycled back to thecell surface and the ligand is transported to the lysosomes for degradation. (provided by RefSeq)