抗LAMP2モノクローナル抗体(Anti-LAMP2) LAMP2 antibody (GL2A7:クローン名) | StressMarq Biosciences

Distribution of lysosomes in CEC was determined using Anti-LAMP2, shown with IF.Courtesy of Dr. Kay, Doheny Eye Institute, USA.

Western blot of human lysate showing detection of ~100-110 kDa LAMP2  protein using Anti-LAMP2 , clone GL2A7 (SMC-141).

LAMP2 Antibody

Monoclonal

Anti-LAMP2

Chaperones, Organelle Markers, Trafficking

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

GL2A7

Rat

IgG1

Purified preparation of mouse liver lysosomal membranes

IP, ICC, IF

Mouse, Rabbit

NP_001017959.1

16784

P17047

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

1:500- 1:1000 (ICC)

Protein G Purified

PBS pH7.4, 50% glycerol, 0.09% sodium azide

1.0 µg/ml of SMC-141 was sufficient for detection of LAMP2 in 20µg of rat liver microsomes by ECL immunoblot analysis using Goat anti-mouse IgG:HRP as the secondary antibody.

Research 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).

References
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.