- MECA-79 (See other available formats)
- Other Names
- PNAd, Peripheral Node Addressin, MECA-79
- Rat IgM, κ
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- Product Citations
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MECA-79 recognizes a carbohydrate epitope shared with a group of sulfation decorated sialomucins, including sulfated ligands for CD62L (CD34, GlyCAM-1, Sgp200, and a subset of MAdCAM-1). This set antigens has been referred to as peripheral node addressin (PNAd) with the molecular mass 50-250 kD. It has been identified that GlcNAc-6-SO4 sulfation contributes to MECA-79 binding and the core 1 β1,3-N-acetylglucosaminyltransferase is required for the generation of the MECA-79 epitope. MECA-79 is expressed on high endothelial venules (HEV) of lymphoid tissues, chronic inflamed tissues and rheumatoid synovia. The interaction of PNAd with CD62L receptor is involved in tethering and rolling of lymphocytes along HEV in lymphoid tissues. MECA-79 antibody reacts with mouse, human and many other species PNAd and blocks L-selectin-dependent lymphocyte adhesion in vitro and in vivo.Product Details
- Mouse, Human
- Antibody Type
- Host Species
- Mouse lymph node stromal cells
- Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.
- The antibody was purified by affinity chromatography and conjugated with Alexa Fluor® 647 under optimal conditions. The solution is free of unconjugated Alexa Fluor® 647.
- 0.5 mg/ml
- Storage & Handling
- The antibody solution should be stored undiluted between 2°C and 8°C, and protected from prolonged exposure to light. Do not freeze.
IHC-P - Quality tested
- Recommended Usage
Each lot of this antibody is quality control tested by formalin-fixed paraffin-embedded immunohistochemical staining. For immunohistochemistry, a concentration range of 5 - 10 µg/ml is suggested. It is recommended that the reagent be titrated for optimal performance for each application.
* Alexa Fluor® 647 has a maximum emission of 668 nm when it is excited at 633 nm / 635 nm.
Alexa Fluor® and Pacific Blue™ are trademarks of Life Technologies Corporation.
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- Excitation Laser
Red Laser (633 nm)
- Application Notes
Additional reported applications (for the relevant formats) include: in vitro and in vivo blocking1-4 of cell adhesion, immunohistochemical staining1,2,6 of acetone-fixed frozen sections and 4% paraformaldehyde-fixed paraffin-embedded sections, flow cytometry10,11, immunoprecipitation3,5, and Western blotting6,11.
(PubMed link indicates BioLegend citation)
- Streeter PR, et al. 1988. J. Cell Biol. 107:1853. (IHC, Block)
- Michie SA, et al. 1993. Amer. J. Path. 143:1688. (IHC, Block)
- Berg EL, et al. 1991. J. Cell Biol. 114:343. (IP, Block)
- Berg EL, et al. 1993. Nature 366:695. (Block)
- Hemmerich S, et al. 1994. J. Exp. Med. 180:2219. (IP)
- Samulowitz U, et al. 2002. Am. J. Path. 160:1669. (IHC, WB)
- Burke SD, et al. 2007. Diabetes 56:2919. PubMed
- Hirakawa J, et al. 2010. J. Biol. Chem. 285:40864. PubMed
- Thomas SN, et al. 2012. J. Immunol. 189:2181. PubMed.
- Izawa D, et al. 1999. Int. Immunol. 11(12):1989-98. (FC, ICC)
- Sinha RK, et al. 2006. Immunology. 119(4):461-9. (FC, IHC-F, WB)
AB_2783059 (BioLegend Cat. No. 120807)
AB_2783060 (BioLegend Cat. No. 120808)
- Sulphated CD34, GlyCAM-1 and MAdCAM-1, Sgp200, sialomucin
High endothelial venules (HEV) in lymphoid tissues, inflamed tissues and rheumatoid synovia
- Leukocyte homing, rolling
- Ligand Receptor
- Biology Area
- Cell Adhesion, Cell Biology, Immunology
- Molecular Family
- Adhesion Molecules
- Antigen References
1. Streeter PR, et al. 1988. J. Cell Biol. 107:1853.
2. Berg EL, et al. 1993. Nature 366:695.
3. Hemmerich S, et al. 1994. J. Exp. Med. 180:2219.
4. Mitoma J, et al. 2003. J. Biol. Chem. 278:9953.
5. Bruehl RE, et al. 2000. J. Biol. Chem. 275:32642.
6. Bistrup A, et al. 2004. Am. J. Pathol. 164:1635
- Gene ID
- View information about PNAd on UniProt.org
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