LAPTM4B Rabbit Polyclonal Antibody

Specifications

Product Data
Applications	IF, IHC, WB
Recommend Dilution	Recommended dilution: WB:1:500-1:5000, IHC:1:500-1:1000, IF:1:50-1:200
Reactivity	Human
Host	Rabbit
Clonality	Polyclonal
Immunogen	Recombinant Human Lysosomal-associated transmembrane protein 4B protein (174-226AA)
Formulation	Preservative: 0.03% Proclin 300 Constituents: 50% Glycerol, 0.01M PBS, pH 7.4
Concentration	lot specific
Purification	>95%, Protein G purified
Conjugation	Unconjugated
Storage Condition	Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.
Database Link	UniProt ID Q86VI4
Background	Required for optimal lysosomal function (PubMed:21224396). Blocks EGF-stimulated EGFR intraluminal sorting and degradation. Conversely by binding with the phosphatidylinositol 4,5-bisphosphate, regulates its PIP5K1C interaction, inhibits HGS ubiquitination and relieves LAPTM4B inhibition of EGFR degradation (PubMed:25588945). Recruits SLC3A2 and SLC7A5 (the Leu transporter) to the lysosome, promoting entry of leucine and other essential amino acid (EAA) into the lysosome, stimulating activation of proton-transporting vacuolar (V)-ATPase protein pump (V-ATPase) and hence mTORC1 activation (PubMed:25998567). Plays a role as negative regulator of TGFB1 production in regulatory T cells (PubMed:26126825). Binds ceramide and facilitates its exit from late endosome in order to control cell death pathways (PubMed:26280656).
Reference Data

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