CD45RA Antibody (Leukocyte marker)

• Catalog Number: orb699525
• Category: Antibodies
• Description: Recognizes a protein of 205kDa-220kDa, identified as CD45RA. CD45RA is isoforms of the human leukocyte common antigen (CD45). Human CD45 contains three exons which encode peptide segments designated A, B and C, respectively. 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+ T-cells, 50% of peripheral CD8+ T-cells, B-cells, and leukemic B-cell lines. T-cells expressing CD45RA are naive or virgin T-cells. T-cells expressing CD45RO are memory T-cells. CD45RA and CD45RO define complementary, predominantly non-overlapping populations of resting peripheral T-cells. This MAb is useful in study on the subpopulation of CD4+ or CD8+ T-cells. It can especially be used to differentiate T-cell lymphomas (CD45RO +ve) from B cell lymphomas (CD45RA +ve).
• Species/Host: Mouse
• Clonality: Recombinant
• Clone Number: rPTPRC/1131
• Tested applications: IHC-P, WB
• Reactivity: Human
• Isotype: Mouse IgG1, kappa
• Immunogen: Recombinant full-length human protein was used as the immunogen for the recombinant CD45RA antibody.
• Dilution range: Western blot: 1-2ug/ml,Immunohistochemistry (FFPE): 1-2ug/ml for 30 minutes 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), 0.05% sodium azide
• Hazard Information: This recombinant CD45RA antibody is available for research use only.
• UniProt ID: P08575
• Storage: Store the recombinant 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), 0.05% sodium azide
• Note: For research use only
• Application notes: Optimal dilution of the recombinant CD45RA antibody should be determined by the researcher.
• Expiration Date: 12 months from date of receipt.

Western blot testing of human spleen lysate with recombinant CD45RA antibody. Expected molecular weight: 147-220 kDa depending on glycosylation level.

IHC staining of FFPE human spleen with recombinant CD45RA antibody (clone rPTPRC/1131). HIER: boil tissue sections in pH 9 10mM Tris with 1mM EDTA for 20 min and allow to cool before testing.

SDS-PAGE analysis of purified, BSA-free recombinant CD45RA antibody (clone rPTPRC/1131) as confirmation of integrity and purity.