- HI100 (See other available formats)
- Regulatory Status
- IV N906
- Other Names
- GP180, L-CA, LCA, LY5, T200, PTPRC
- Mouse IgG2b, κ
- Ave. Rating
- Submit a Review
- Product Citations
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CD45RA is a 205-220 kD single chain type I glycoprotein. It is an exon 4 splice variant of the tyrosine phosphatase CD45. The CD45RA isoform is expressed on resting/naïve T cells, medullary thymocytes, B cells and monocytes. CD45RA enhances both T cell receptor and B cell receptor signaling. CD45 non-covalently associates with lymphocyte phosphatase-associated phosphoprotein (LPAP) on T and B lymphocytes. CD45 has been reported to be associated with several other cell surface antigens including CD1, CD2, CD3, and CD4. CD45 has also been reported to bind galectin-1. CD45 isoform expression can change in response to cytokines.Product Details
- Human, Cross-Reactivity: Chimpanzee
- Antibody Type
- Host Species
- Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide and BSA (origin USA).
- The antibody was purified by affinity chromatography and conjugated with Brilliant Violet 421™ under optimal conditions.
- Lot-specific (please contact technical support for concentration and total µg amount, or use our Lookup tool if you have a lot number.)
- 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.
FC - Quality tested
IHC-P - Verified
- 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 5 µl per million cells in 100 µl staining volume or 5 µl per 100 µl of whole blood. For immunohistochemistry, a concentration range of 5.0 - 10.0 µg/ml is suggested. It is recommended that the reagent be titrated for optimal performance for each application.
Brilliant Violet 421™ excites at 405 nm and emits at 421 nm. The standard bandpass filter 450/50 nm is recommended for detection. Brilliant Violet 421™ is a trademark of Sirigen Group Ltd.
Learn more about Brilliant Violet™.
This product is subject to proprietary rights of Sirigen Inc. and is made and sold under license from Sirigen Inc. The purchase of this product conveys to the buyer a non-transferable right to use the purchased product for research purposes only. This product may not be resold or incorporated in any manner into another product for resale. Any use for therapeutics or diagnostics is strictly prohibited. This product is covered by U.S. Patent(s), pending patent applications and foreign equivalents.
- Excitation Laser
Violet Laser (405 nm)
- Application Notes
Additional reported applications (for relevant formats of this clone) include: inhibition of CD45 functions2, immunohistochemical staining of frozen tissue sections3 and formalin-fixed paraffin-embedded tissue sections4, and immunocytochemistry15,16.
- Application References
- Knapp W, et al. 1989. Leucocyte Typing IV. Oxford University Press. New York.
- Yamada T, et al. 2002. J. Biol. Chem. 277:28830. (WB, Block)
- Weninger W, et al. 2003 J. Immunol. 170:4638. (IHC-F)
- Imanguli MM, et al. 2009. Blood. 113:3620 (IHC-P)
- Roque S, et al. 2007. J. Immunol. 178:8028. (FC) PubMed
- Smeltz RB. 2007. J. Immunol. 178:4786. (FC) PubMed
- Palendira U, et al. 2008. Blood (FC) PubMed
- Kuttruff S, et al. 2009. Blood 113:358. (FC) PubMed
- Thakral D, et al. 2008. J. Immunol. 180:7431. (FC) PubMed
- Alanio C, et al. 2010. Blood 115:3718. (FC) PubMed
- Iannello A, et al. 2010. J. Immunol. 184:114. (FC) PubMed
- Yoshino N, et al. 2000. Exp. Anim. (Tokyo) 49:97. (FC)
- Guereau-de-Arellan M, et al. 2011. Brain. 134:3578. PubMed
- Canque B, et al. 2000. Blood 96:3748. (ICC)
- Imanguli MM, et al. 2009. Blood 13:3620. (ICC)
- Stoeckius M, et al. 2017. Nat. Methods. 14:865. (PG)
- Peterson VM, et al. 2017. Nat. Biotechnol. 35:936. (PG)
- Product Citations
AB_10900421 (BioLegend Cat. No. 304129)
AB_10965547 (BioLegend Cat. No. 304130)
- Tyrosine phosphatases, type I transmembrane (exon 4 splicing of CD45 gene), 205-220 kD
B cells, naïve T cells, monocytes
- Enhances TCR and BCR signaling
- Galectin-1, CD2, CD3, CD4
- Cell Type
- B cells, Monocytes, T cells, Tregs
- Biology Area
- Cell Biology, Immunology, Inhibitory Molecules, Neuroscience, Neuroscience Cell Markers
- Molecular Family
- CD Molecules
- Antigen References
1. Thomas M. 1989. Annu. Rev. Immunol. 7:339.
2. Trowbridge I, et al. 1994. Annu. Rev. Immunol.12:85.
- Gene ID
- 5788 View all products for this Gene ID
- View information about CD45RA on UniProt.org
- What is the F/P ratio range of our BV421™ format antibody reagents?
It is lot-specific. On average it ranges between 2-4.
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