DATASHEET
Host:
Rat
Target Protein:
Receptor-type tyrosine-protein phosphatase C
Clonality:
Monoclonal
Isotype:
IgG2a/Kappa
Entrez Gene:
19264
Swiss Prot:
P06800
Purification:
Affinity purified by Protein G
Storage Buffer:
0.01M PBS, 0.5%BSA, 0.02% Proclin300
Storage:
Store at 2-8°C
Background:
CD45R, also known as B220, is an isoform of CD45. It is a member of the protein tyrosine phosphatase (PTP) family with a molecular weight of approximately 180-240 kD. CD45R is expressed on B cells (at all developmental stages from pro-B cells through mature B cells), activated B cells, and subsets of T and NK cells. CD45R (B220) is also expressed on a subset of abnormal T cells involved in the pathogenesis of systemic autoimmunity in MRL-Faslpr and MRL-Fasgld mice. It plays a critical role in TCR and BCR signaling. The primary ligands for CD45 are galectin-1, CD2, CD3, and CD4. CD45R is commonly used as a pan-B cell marker; however, CD19 may be more appropriate for B cell specificity.