Overview
CD53 is a tetraspanin family transmembrane glycoprotein expressed in the lymphoid-myeloid lineage. This molecule has been reported to form complexes with other leukocyte surface proteins such as CD2, CD19, CD21, MHC II, VLA-4 or tetraspanins CD37, CD81 and CD82, thus probably modulating various signaling processes. CD53 is involved in radioresistancy of tumour cells and its triggering has anti-apoptotic effect. In thymus, CD53 is up-regulated in response to positive selection signals during T cell development, and is strongly expressed upon macrophage exposure to bacterial lipopolysaccharide, whereas stimulation of neutrophils results in down-regulation of CD53 expression.
Specificity:
The antibody MEM-53 reacts with an extracellular epitope of CD53, a 32-40 kDa tetraspanin family glycoprotein exclusivelly expressed on leukocytes; it is not present on platelets, red blood cells and non-hematopoietic cells.
The antibody MEM-53 reacts also with deglycosylated molecule (molecular weight of the antigen is reduced by 15 kDa using endoglycosidase F) .
Antigen
CD53
Clone
MEM-53
Species Reactivity
Human
Negative Species
N/A
Isotype
Mouse IgG1
Immunogen
Leukocytes of pacient suffering from a LGL-type leukemia.
Application
FC (QC tested)
Regulatory status
RUO
Concentration
N/A
Format
PE
Storage / Stability
Store at 2-8°C. Protect from prolonged exposure to light. Do not freeze.
Storage Buffer
Stabilizing phosphate buffered saline (PBS) , pH 7.4, 15 mM sodium azide