CD5 Mouse Monoclonal Antibody [Clone ID: MEM-32]

Specifications

Product Data
Clone Name	MEM-32
Applications	ELISA, FC, IF, IHC, IP, WB
Recommend Dilution	Immunoprecipitation. Western blot (non reducing conditions): Laurylmaltoside lysing buffer, 1-2 μg/ml. Immunocytochemistry. Flow cytometry: 2 μg/ml. Immunohistochemistry (paraffin sections): 20 μg/ml. Positive tissue: spleen. ELISA: Can be used in the Sandwich ELISA as the capture antibody in pair with the detection antibody clone CRIS1.
Reactivity	Human
Host	Mouse
Clonality	Monoclonal
Immunogen	Crude thymus membrane fraction
Specificity	The antibody MEM-32 reacts with the cell surface glycoprotein CD5, a 67kDa single-chain transmembrane glycoprotein expressed on mature T-lymphocytes, most of thymocytes and B-lymphocytes subset (B-1a lymphocytes).
Formulation	Phosphate buffered saline (PBS) with 15 mM sodium azide, approx. pH 7.4 State: Purified State: Liquid Ig fraction
Concentration	lot specific
Purification	Protein A affinity chromatography; purity: > 95% (by SDS-PAGE)
Conjugation	Unconjugated
Storage Condition	Store the antibody at 2 - 8 °C up to one month or (in aliquots) at -20 °C for longer. Avoid repeated freezing and thawing.
Gene Name	CD5 molecule
Database Link	Entrez Gene 921 Human UniProt ID P06127
Background	CD5 antigen (T1; 67 kDa) is a human cell surface T-lymphocyte single-chain transmembrane glycoprotein. CD5 is expressed on all mature T-lymphocytes, most of thymocytes, subset of B-lymphocytes and on many T-cell leukemias and lymphomas. It is a type I membrane glycoprotein whose extracellular region contains three scavenger receptor cysteine-rich (SRCR) domains. The CD5 is a signal transducing molecule whose cytoplasmic tail is devoid of any intrinsic catalytic activity. CD5 modulates signaling through the antigen-specific receptor complex (TCR and BCR). CD5 crosslinking induces extracellular Ca++ mobilization, tyrosine phosphorylation of intracellular proteins and DAG production. Preliminary evidence shows protein associations with ZAP-70, p56lck, p59fyn, PC-PLC, etc. CD5 may serve as a dual receptor, giving either stimulatory or inhibitory signals depending both on the cell type and development stage. In thymocytes and B1a cells seems to provide inhibitory signals, in peripheral mature T lymhocytes it acts as a costimulatory signal receptor. CD5 is the phenotypic marker of a B cell subpopulation involved in the production of autoreactive antibodies. Disease relevance: CD5 is a phenotypic marker for some B cell lymphoproliferative disorders (B-CLL, Hairy cell leukemia, etc.). The CD5+ popuation is expanded in some autoimmune disorders (Rheumatoid Arthritis, etc.). Herpes virus infections induce loss of CD5 expression in the expanded CD8+ human T cells.
Synonyms	CD5, LEU1
Reference Data

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