CD45RA Antibody

CD45RA is an isoform 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) .

Product Specifications

CAS Number

9007-83-4

Specifications

Flow cytometry: 0.5-1ug/10^6 cells, Immunofluorescence: 1-2 µg/mL, Western blot: 1-2 µg/mL, Immunohistochemistry (FFPE) : 0.5-1 µg/mL for 30 min at RT

UniProt

P08575

Host

Mouse

Reactivity

Human

Immunogen

Stimulated human leukocytes were used as immunogen for this CD45RA antibody.

Clonality

Monoclonal

Isotype

IgG2a κ

Clone

PTPRC/818

Applications

FACS, IF, WB, IHC-P

Purity

Protein G affinity chromatography

Format

Purified

Buffer

1X PBS, pH 7.4

Reconstitution

The CD45RA antibody (with azide) can be stored at 2-8oC. The azide-free format should be aliquoted and stored at -20oC or colder.

Limitations

This CD45RA antibody is available for research use only.

Storage Conditions

The CD45RA antibody (with azide) can be stored at 2-8°C. The azide-free format should be aliquoted and stored at -20°C or colder.

Formulation

0.2 mg/mL in 1X PBS with 0.1 mg/mL BSA (US sourced) and 0.05% sodium azide

Location

Cell surface

Image Legend

IHC test of FFPE human tonsil probed with CD45RA antibody. HIER: boil tissue sections in 10mM citrate buffer, pH 6, for 10-20 min followed by cooling at RT for 20 minutes.