UniprotKB/SwissProt ID: Q8BZL1 (Q8BZL1)
Gene Name:
Neu4
Organism: Mus musculus (Mouse)
Function: Exo-alpha-sialidase that catalyzes the hydrolytic cleavage of the terminal sialic acid (N-acetylneuraminic acid, Neu5Ac) of a glycan moiety in the catabolism of glycolipids, glycoproteins and oligosacharides. Efficiently hydrolyzes gangliosides including alpha-(2->3)-sialylated GD1a and GM3 and alpha-(2->8)-sialylated GD3 (PubMed:19506080, PubMed:22393058). Hydrolyzes poly-alpha-(2->8)-sialylated neural cell adhesion molecule NCAM1 likely at growth cones, suppressing neurite outgrowth in hippocampal neurons (PubMed:19506080, PubMed:22393058). May desialylate sialyl Lewis A and X antigens at the cell surface, down-regulating these glycan epitopes recognized by SELE/E selectin in the initiation of cell adhesion and extravasation (By similarity). Has sialidase activity toward mucin, fetuin and sialyllactose (PubMed:19506080, PubMed:22393058)
Other Modifications: View all modification sites in dbPTM
Protein Subcellular Localization: Cell membrane. Endoplasmic reticulum membrane. Microsome membrane. Mitochondrion inner membrane. Mitochondrion outer membrane. Cell projection, neuron projection. Lysosome lumen
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