LAMP2, Monoclonal Antibody

CD107b; Igp110; Igp2; Lamp2C; LampB; MAC3; Lysosome-associated membrane glycoprotein 2; LAMP-2; Lysosome-associated membrane protein 2; CD107 antigen-like family member B; Lysosomal membrane glycoprotein type B; LGP-B

For Research Use Only. Not for use in diagnostic procedures.

Monoclonal

IgG1

GL2A7

Rat

Protein G Purified

1mg/mL (lot specific)

-20 degree C

Small volumes of anti-Lamp2 antibody vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.

Background Info: Recommended for use in ICC. The antibody will label the presumptive lysosomes and late endosomes in cells that have been permeabilized with saponin.

Scientific Background: Lysosme associated membrane proteins, or LAMP1 and LAMP2, are major constituents of the lysosomal membrane. The two have closely related structures, with 37% sequence homology (2). They are both transmembrane glycoproteins that are localized primarily in lysosomes and late endosomes. Newly synthesized molecules are mostly transported from the trans-Golgi network directly to endosomes and then to lysosomes. A second pathway involves the lamps being delivered from the Golgi to the cell surface, and then along the endocytic pathway to the lysosomes. A minor pathway involves transport via the plasma membrane (3). LAMP2 has also been detected at the plasma membrane of cells, as well as in cells that secrete lysosomal hydrolases. A study in the developmental expresses patterns of membrane LAMP2 transcripts indicate a possible involvement of this protein in cell-cell or cell-extracellular matrix interaction, and appear to reflect tissue and cell type specific roles of lysosomes during morphogenesis (4). Upon stimulation, a rapid translocation of intracellular LAMPs to the cell membrane is dependent on a carboxyl-terminal tyrosine based motif (YXXI) (5). This stimulation has also been shown to have an associated release of histamine, leukotriene C 9$) and prostaglandin D 9@), which shows that LAMP1 and LAMP2 are activation markers for normal mast cells (5). They have also been linked to the inflammatory response in that they promote adhesion of human peripheral blood mononuclear cells (PBMC) to vascular endothelium, and therefore possibly the adhesion of PBMC to the site of inflammation (6). LAMP2 has also been shown to be critical for autophagy, in conversion of early autophagic vacuoles to vacuoles which rapidly degrade their content (7).

Chaperones, Organelle Markers, Trafficking

Immunoprecipitation (IP), Immunocytochemistry (ICC), Immunofluorescence (IF)

1:500- 1:1000 (ICC)

Immunocytochemistry/Immunofluorescence analysis using Rat Anti-LAMP2 Monoclonal Antibody, Clone GL2A7. Tissue: Corneal Endothelial Cell (CEC). Species: Rabbit. Primary Antibody: Rat Anti-LAMP2 Monoclonal Antibody at 1:1000. Secondary Antibody: FITC Goat Anti-Rat (green). Courtesy of: Eunduck E.P. Kay, Doheny Eye Institute.

Western Blot analysis of Human, Mouse HEK293 and 3T3NIH cell lysates showing detection of ~100-110 kDa LAMP2 protein using Rat Anti-LAMP2 Monoclonal Antibody, Clone GL2A7. Lane 1: MW ladder. Lane 2: Human HEK293 lysate (20 ug). Lane 3: Mouse 3T3NIH lysate (10 ug). Block: 5% milk + TBST for 1 hour at RT. Primary Antibody: Rat Anti-LAMP2 Monoclonal Antibody at 1:500 for 1 hour at RT. Secondary Antibody: HRP Goat Anti-Rat at 1:100 for 1 hour at RT. Color Development: TMB solution for 5 min at RT. Predicted/Observed Size: ~100-110 kDa.

45,655 Da[Similar Products]

lysosomal-associated membrane protein 2

lysosome-associated membrane glycoprotein 2; lysosomal membrane glycoprotein 2; CD107 antigen-like family member B; lysosomal membrane glycoprotein type B

Lysosome-associated membrane glycoprotein 2

Lamp-2; LAMP-2; Lysosome-associated membrane protein 2; LGP-B  [Similar Products]

LAMP2_MOUSE

LAMP2: Implicated in tumor cell metastasis. May function in protection of the lysosomal membrane from autodigestion, maintenance of the acidic environment of the lysosome, adhesion when expressed on the cell surface (plasma membrane), and inter- and intracellular signal transduction. Protects cells from the toxic effects of methylating mutagens. Defects in LAMP2 are the cause of Danon disease (DAND); also known as glycogen storage disease type 2B (GSD2B). DAND is a lysosomal glycogen storage disease characterized by the clinical triad of cardiomyopathy, vacuolar myopathy and mental retardation. It is often associated with an accumulation of glycogen in muscle and lysosomes. Belongs to the LAMP family. 3 isoforms of the human protein are produced by alternative splicing.

Protein type: Membrane protein, integral

Cellular Component: phagocytic vesicle membrane; membrane; late endosome membrane; lysosome; lysosomal membrane; late endosome; integral to membrane; plasma membrane; platelet dense granule membrane; endosome

Molecular Function: protein domain specific binding; enzyme binding

Biological Process: protein stabilization

1. Granger B.L., et al. (1990) J. Biol. Chem. 265: 12036-12043. 2. Furuta K., et al. (1999) EMBO J. 17(5):1304-14. 3. Rohrer J., et al. (1996) J Cell Biol. 132(4): 565-76. 4. Lichter-Konecki U., et al (1999) Differentiation 65(1): 43-58. 5. Grutzkau A., et al. (2004) Cytometry A. 61(1): 62-68. 6. Kannan K., et al. (1996) Cell Immunol. 171: 10-19. 7. Tanaka Y., et al. (2000) Nature 406: 902-906.

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