Human CD45RA Antibody

Catalog #: MAB11446 Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
MAB11446-100
MAB11446-SP

Detection of CD45RA in PBMC lymphocytes by Flow Cytometry.

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Summary Data Examples Preparation and Storage Reconstitution Calculator Background Product Datasheets Related Research Areas

Human CD45RA Antibody Summary

Species Reactivity

Human

Specificity

Detects hCD45RA in direct ELISA.

Source

Monoclonal Mouse IgG₁ Clone # 1069248

Purification

Protein A or G purified from hybridoma culture supernatant

Immunogen

Synthetic Peptide
Accession # P08575

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Label

Unconjugated

Applications

Recommended Concentration

Sample

Flow Cytometry

0.25 µg/10⁶ cells

PBMC lymphocytes

Immunohistochemistry

5-15 µg/mL

Immersion fixed paraffin-embedded sections of Human Tonsil

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Flow Cytometry

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Detection of CD45RA in PBMC lymphocytes by Flow Cytometry. PBMC lymphocytes were stained with Mouse Anti-Human CD45RO PE‑conjugated Monoclonal Antibody (Catalog # FAB10642P) and either (A) Mouse Anti-Human CD45RA Monoclonal Antibody (Catalog # MAB11446) or (B) Mouse IgG₁ Isotype Control (Catalog # MAB002) followed by Allophycocyanin-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # F0101B). View our protocol for Staining Membrane-associated Proteins.

Immunohistochemistry

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Detection of CD45RA in Human Tonsil. CD45RA was detected in immersion fixed paraffin-embedded sections of Human Tonsil using Mouse Anti-Human CD45RA Monoclonal Antibody (Catalog # MAB11446) at 5 µg/mL for 1 hour at room temperature followed by incubation with the Anti-Mouse IgG VisUCyte™ HRP Polymer Antibody (Catalog # VC001). Before incubation with the primary antibody, tissue was subjected to heat-induced epitope retrieval using VisUCyte Antigen Retrieval Reagent-Basic (Catalog # VCTS021). Tissue was stained using DAB (brown) and counterstained with hematoxylin (blue). Specific staining was localized to cell surface in lymphocytes. View our protocol for IHC Staining with VisUCyte HRP Polymer Detection Reagents.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: CD45RA

CD45RA is a single chain type I glycoprotein that is encoded by the human PTPRC gene. In humans, CD45RA is one of six isoforms of the CD45 complex. These different isoforms are the result of alternative splicing and some of the other isoforms include CD45RO, CD45RB, and CD45RC. CD45RO, CD45RB, CD45RC, and CD45RA are primarily expressed on T cells. CD45RA contains exons 3, 4, and 7 but lacks both exons 5 and 6; CD45RC contains exons 3, 6, and 7. CD45RO contains exons 3 and 7 whereas CD45RB contains exons 3, 5, and 7. Both CD45RA and CD45RB are highly expressed on naïve T cells whereas CD45RO is expressed on activated and memory T cells in addition to some B cell subsets and activated monocytes. Both CD45RA and CD45RO are routinely used to characterize different subsets of Memory T cells.

Long Name

CD45R, A isoform

Entrez Gene IDs

5788 (Human)

Alternate Names

B220; CD45 antigen; CD45R; CD45RA; EC 3.1.3.48; L-CA; LY5; protein tyrosine phosphatase, receptor type, C; receptor-type tyrosine-protein phosphatase C; T200 glycoprotein; T200 leukocyte common antigen; T200receptor type, c polypeptide