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FITC Mouse Anti-Mouse CD45.1
FITC Mouse Anti-Mouse CD45.1
Differential expression of CD45.1 in RIII and C57BL/6 spleen. Single-cell suspensions of splenocytes from RIII (left panel) and C57BL/6N (right panel) mice were stained with FITC-conjugated A20 mAb. Flow cytometry was performed on a BD FACScan™ flow cytometry system.
Differential expression of CD45.1 in RIII and C57BL/6 spleen. Single-cell suspensions of splenocytes from RIII (left panel) and C57BL/6N (right panel) mice were stained with FITC-conjugated A20 mAb. Flow cytometry was performed on a BD FACScan™ flow cytometry system.
Product Details
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BD Pharmingen™
Mouse (QC Testing)
Mouse A.SW IgG2a, κ
SJL mouse thymocytes and splenocytes
Flow cytometry (Routinely Tested)
0.5 mg/ml
19264
AB_10926208
Aqueous buffered solution containing ≤0.09% sodium azide.
RUO


Preparation And Storage

The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography. The antibody was conjugated with FITC under optimum conditions, and unreacted FITC was removed. Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze.

Product Notices

  1. Since applications vary, each investigator should titrate the reagent to obtain optimal results.
  2. Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
  3. Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.
553775 Rev. 12
Antibody Details
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A20

The A20 monoclonal antibody specifically binds to CD45 (Leukocyte Common Antigen) on all leukocytes of mouse strains expressing the CD45.1 alloantigen (eg, RIII, SJL/J, STS/A, DA). This alloantigen was originally named Ly-5.2, but was later changed to Ly-5.1 to conform with the convention that the .2 alloantigen designates the C57BL/6 strain. mAb A20 has been reported not to react with leukocytes of most other mouse strains which express the CD45.2 alloantigen. CD45 is a member of the Protein Tyrosine Phosphatase (PTP) family; its intracellular (COOH-terminal) region contains two PTP catalytic domains while the extracellular region is highly variable due to alternative splicing of exons 4, 5, and 6 (designated A, B, and C,  respectively), and differing levels of glycosylation. CD45 isoforms in the mouse are cell type-, maturation-, and activation state-specific. The CD45 isoforms play complex roles in T-cell and B-cell antigen receptor signal transduction. The A20 antibody has been reported to inhibit some responses of B cells (from mice expressing the CD45.1 alloantigen) to antigens and LPS.

This antibody is routinely tested by flow cytometric analysis. Other applications were tested at BD Biosciences Pharmingen during antibody development only or reported in the literature.

553775 Rev. 12
Format Details
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FITC
Fluorescein (FITC) is part of the BD blue family of dyes. This is a small organic fluorochrome with an excitation maximum (Ex Max) at 494-nm and an emission maximum (Em Max) at 518-nm. FITC is designed to be excited by the Blue laser (488-nm) and detected using an optical filter centered near 520 nm (e.g., a 530/30-nm bandpass filter). Please ensure that your instrument’s configurations (lasers and optical filters) are appropriate for this dye.
altImg
FITC
Blue 488 nm
494 nm
518 nm
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Citations & References
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Development References (6)

  1. Johnson P, Greenbaum L, Bottomly K, Trowbridge IS. Identification of the alternatively spliced exons of murine CD45 (T200) required for reactivity with B220 and other T200-restricted antibodies. J Exp Med. 1989; 169(3):1179-1184. (Biology). View Reference
  2. Morse HC 3rd, Shen FW, Hammerling U. Genetic nomenclature for loci controlling mouse lymphocyte antigens. Immunogenetics. 1987; 25(2):71-78. (Biology). View Reference
  3. Shen FW, Tung JS, Boyse EA. Further definition of the Ly-5 system. Immunogenetics. 1986; 24(3):146-149. (Biology). View Reference
  4. Shen FW. Monoclonal antibodies to mouse lymphocyte differentiation alloantigens. In: Hammerling GJ, Hammerling U, Kearney JF, ed. Monoclonal Antibodies and T-cell Hybridomas; Perspectives and Technical Advances. 1981:25-31.
  5. Yakura H, Kawabata I, Shen FW, Katagiri M. Selective inhibition of lipopolysaccharide-induced polyclonal IgG response by monoclonal Ly-5 antibody. J Immunol. 1986; 136(8):2729-2733. (Clone-specific: Inhibition). View Reference
  6. Yakura H, Shen FW, Bourcet E, Boyse EA. On the function of Ly-5 in the regulation of antigen-driven B cell differentiation. Comparison and contrast with Lyb-2. J Exp Med. 1983; 157(4):1077-1088. (Clone-specific: Inhibition). View Reference
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553775 Rev. 12

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Comparisons, where applicable, are made against older BD Technology, manual methods or are general performance claims.  Comparisons are not made against non-BD technologies, unless otherwise noted.

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