Biolegend, 121203, Biotin anti-mouse CD43 Activation-Associated Glycoform Antibody, 50μg

CD43, also known as Ly-48, Leukosialin, Sialophorin, Leukocyte Sialoglycoprotein, and gp115, is a large single chain of type I transmembrane glycoprotein with abundant O-glycosylation and sialylation sites. Due to variable glycosylation and sialylation, two isoforms of CD43 have been identified. The 115 kD glycoform of CD43 is expressed on most hematopietic cells including T lymphocytes, NK cells, monocytes, granulocytes, platelets, and CD5 + B cells. It is not present on resting B cells and erythrocytes. While the 130 kD glycoform is thought to be activation-associated form primarily expressed on myeloid cells, pre-B cells, and activated T cells. It has been reported that CD43 binds to CD54 and Siglec-1. CD43 plays dual roles in cell adhesion and anti-adhesion, as well as costimulation of T cell activation and survival, and induction of apoptosis of T cells and hematopoietic progenitors. The 1B11 antibody reacts with the activation-associated glycoform of CD43. The epitope recognized by 1B11 is also shared with desialylated CD45RB. This antibody is useful for differentiation of effector CD8 T cells and memory T cells.
50μg
Verified Reactivity: Mouse
Antibody Type: Monoclonal
Host Species: Rat
Immunogen: Mouse WEHI 274.3 myeloid tumor cells
Formulation: Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.
Preparation: The antibody was purified by affinity chromatography, and conjugated with biotin under optimal conditions.
Concentration: 0.5 mg/ml
Storage & Handling: The antibody solution should be stored undiluted between 2°C and 8°C. Do not freeze.
Application: FC - Quality tested
Recommended Usage: Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is ≤ 0.25 µg per million cells in 100 µl volume. It is recommended that the reagent be titrated for optimal performance for each application.
Application Notes: Additional reported applications (for the relevant formats) include: immunoprecipitation1,2, Western blotting1,2, and immunohistochemistry of acetone-fixed frozen sections.
Application References(PubMed link indicates BioLegend citation): Jones AT, et al. 1994. J. Immunol. 153:3426. (IP, WB) Carlow DA, et al. 1999. J. Immunol. 163:1441. (IP, WB) Onami TM, et al. 2002. J. Immunol. 168:6022. van der Most RG, et al. 2003. Intl. Immunol. 15:119. Chu VT, et al. 2007. J. Immunol. 179:5947. Lang A, et al. 2008. J. Immunol. 180:4848. PubMed Gibbert K, et al. 2010. J. Immunol. 185:6179. PubMed
Product Citations: Wu J, et al. 2022. Nat Commun. 13:7321. PubMed Chu V, et al. 2007. J Immunol. 179:5947. PubMed Sochalska M, et al. 2016. Oncogene. 10.1038/onc.2016.362. PubMed Hu K, Butte M 2016. J Cell Biol. 213: 535 - 542. PubMed
RRID: AB_493384 (BioLegend Cat. No. 121204)
Structure: Single chain of type I transmembrane glycoprotein with abundant O-glycosylation and sialylation sites, 115 kD and 130 kD glycoforms with different glycosylation and sialylation
Distribution: Most hematopoietic cells including peripheral T cells, NK cells, granulocytes, monocytes, thymocytes, platelets, plasma cells, CD5+ B-1 cells and activated B cells, and hemotopoietic progenitor cells.
Function: Play a dual roles in cell-cell adhesion and anti-adhesion, costimulation of cell activation and survival, induce apoptosis of T cells and hematopoietic progenitors
Ligand/Receptor: CD54, Siglec-1
Cell Type: B cells, Granulocytes, Hematopoietic stem and progenitors, Monocytes, NK cells, Plasma cells, Platelets, T cells, Thymocytes
Biology Area: Immunology
Molecular Family: Adhesion Molecules, CD Molecules
Antigen References: 1. van den Berg TK, et al. 2001. J. Immunol. 166:3637. 2. Moore T, et al. 1994. J. Immunol. 153:4978. 3. Onami TM, et al. 2002. J. Immunol. 168:6022. 4. Tong J, et al. 2004. J. Exp. Med. 199:1277. 5. Jones AT, et al. 1994. J. Immunol. 153:3426.
Gene ID: 20737
UniProt: View information about CD43 on UniProt.org
Clone: 1B11
Regulatory Status: RUO
Other Names: Ly-48, Leukosialin, Sialophorin, Leukocyte Sialoglycoprotein, gp115
Isotype: Rat IgG2a, κ
Q: How many biotin molecules are per antibody structure?
A: We don't routinely measure the number of biotins with our antibody products but the number of biotin molecules range from 3-6 molecules per antibody.