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Catalog Number | orb248519 |
---|---|
Category | Antibodies |
Description | This antibody recognizes a protein of 205kDa-220kDa, identified as CD45RA, an isoform of the human leukocyte common antigen (CD45). Human CD45 contains three exons which encode peptide segments designated A, B and C. The differential splicing of the exons generates at least five isoforms, ABC, AB, BC, B and O. This antibody reacts with ABC and BC isoforms. CD45RA is expressed on 40-50% of peripheral CD4+ Tcells, 50% of peripheral CD8+ T-cells, B-cells, and leukemic B-cell lines. T-cells expressing CD45RA are naive or virgin Tcells. T-cells expressing CD45RO are memory Tcells. CD45RA and CD45RO define complementary, predominantly non-overlapping populations of resting peripheral Tcells. This CD45RA antibody is useful in the study of the subpopulation of CD4+ or CD8+ T-cells. It is especially useful in differentiating T-cell lymphomas (CD45RO +ve) from B cell lymphomas (CD45RA +ve). |
Species/Host | Mouse |
Clonality | Monoclonal |
Clone Number | 158-4D3 |
Tested applications | FACS, IF, IHC-P, WB |
Reactivity | Human |
Isotype | Mouse IgG2a, kappa |
Immunogen | Stimulated human leukocytes were used as the immunogen for this CD45RA antibody. |
Dilution range | Flow cytometry: 0.5-1ug/million cells,Immunofluorescence: 1-2ug/ml,Western blot: 1-2ug/ml,Immunohistochemistry (FFPE): 0.5-1ug/ml for 30 min at RT |
Purity | Protein G affinity chromatography |
Conjugation | Unconjugated |
Formula | 0.2 mg/ml in 1X PBS with 0.1 mg/ml BSA (US sourced) and 0.05% sodium azide |
Hazard Information | This CD45RA antibody is available for research use only. |
Entrez | 5788 |
Storage | Store the CD45RA antibody at 2-8°C (with azide) or aliquot and store at -20°C or colder (without azide). |
Buffer/Preservatives | 0.2 mg/ml in 1X PBS with 0.1 mg/ml rAlbumin (US sourced) and 0.05% sodium azide |
Note | For research use only |
Application notes | The concentration stated for each application is a general starting point. Variations in protocols, secondaries and substrates may require the CD45RA antibody to be titered up or down for optimal performance.1. The prediluted format is supplied in a dropper bottle and is optimized for use in IHC. After epitope retrieval step (if required), drip mAb solution onto the tissue section and incubate at RT for 30 min. |
Expiration Date | 12 months from date of receipt. |
FACS staining of PBMCs using CD45RA antibody
Immunohistochemical analysis of formalin-fixed and paraffin-embedded human spleen tissue using CD45RA antibody
FACS, IF, IHC, WB | |
Human | |
Mouse | |
Monoclonal | |
Unconjugated |
FACS, IF, IHC-P | |
Human | |
Mouse | |
Monoclonal | |
Unconjugated |
FACS, IF, IHC-P | |
Human | |
Mouse | |
Monoclonal | |
Unconjugated |
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