What is CD45R a marker for?
CD19 and B220 (CD45R), an isoform of CD45, are surface markers of mature, resting B cells. CD45 is a tyrosine phosphatase that participates in the modulation of the immune response in both B and T cells.
Is CD45 the same as CD45R?
As a result of the variability of the N-terminal region of CD45, antibodies raised against the CD45 protein recognize either all of the CD45 isoforms or only a subset of them (CD45R).

What is B220 a marker for?
B220 can be used as a marker for mouse B cells and not a pan B cell marker in humans.
What cells express CD45R?
CD45RA is located on naive T cells and CD45RO is located on memory T cells. CD45 is also highly glycosylated. CD45R is the longest protein and migrates at 200 kDa when isolated from T cells.
Do all T cells have cd3?
CD3 (cluster of differentiation 3) is a protein complex and T cell co-receptor that is involved in activating both the cytotoxic T cell (CD8+ naive T cells) and T helper cells (CD4+ naive T cells). It is composed of four distinct chains….CD3 (immunology)

CD3d molecule, delta | |
---|---|
Identifiers | |
HGNC | 1673 |
OMIM | 186790 |
PDB | 1XIW |
Is CD45 on all immune cells?
CD45 is a major transmembrane glycoprotein expressed on all nucleated hematopoietic cells. Eight isoforms of CD45 are distributed through the immune system according to cell type and degree of cellular differentiation.
What is gr1 marker?
The mouse Gr-1 antigen is a GPI-linked myeloid differentiation marker also known as Ly-6G. Its cellular expression is restricted to monocytes within bone and on neutrophils in peripheral organs.
What is GL7 marker?
GL7 is commonly used as a marker for mouse germinal center B cells. The epitope of GL7 has been identified as a sialic acid glycan moiety called Neu5Ac. This moiety is recognized by CD22.
Is B220 the same as CD45?
CD45 also known as B220, Ly-5 and T200 is a member of the protein tyrosine phosphatase (PTP) family with a molecular weight of approximately 220 kDa.
What are CD38 cells?
CD38 (cluster of differentiation 38), also known as cyclic ADP ribose hydrolase is a glycoprotein found on the surface of many immune cells (white blood cells), including CD4+, CD8+, B lymphocytes and natural killer cells. CD38 also functions in cell adhesion, signal transduction and calcium signaling.
What is the main function of CD3?
The multi-chain T cell receptor/CD3 complex (TCR/CD3) plays a key role in antigen recognition, T cell activation and in consequence in triggering an antigen specific immune response.
What is CD45R and where is it found?
CD45R specifically has been shown to be essential in B cell receptor and T cell receptor signaling. It is primarily found on all developmental B cells including: Pro-B cell, Pre-B cell and up to mature B cells but is also found on T cell & NK cell subsets. Anti-mouse CD45R clone RA3-6B2 (MCA1258)
What is b220/cd45r?
B220 antigens represent a subset of mouse CD45 isoforms predominantly expressed on all B lymphocytes, including pro-, mature and activated B cells. The level of B220 antigen expression on the B cell lineage is developmentally regulated and this antibody is commonly used as a B cell marker. ” B220/CD45R ” has 17 results in Products.
What are the different isotypes of CD45?
There are many different isotypes of CD45 family, with CD45R being the longest protein and with more glycosylation when expressed on B cell. For further information about CD45 and its isoforms refer to the CD45 mini-review . CD45R specifically has been shown to be essential in B cell receptor and T cell receptor signaling.
What does CD45 do in hematopoietic cells?
The exclusive presence of the tyrosine phosphatase, CD45, on the surface of hematopoietic cells coupled with the differential expression of its various isoforms has enabled the selection of lymphocyte subsets based on their reactivity with monoclonal antibodies (mAbs) specific for one or more CD45 s …