CD19 Mouse Monoclonal Antibody [Clone ID: 4G7]

Specifications

Product Data
Clone Name	4G7
Applications	FC, IF
Recommend Dilution	Flow Cytometry: 1 μg/ml. Immunocytochemistry.
Reactivity	Human
Host	Mouse
Clonality	Monoclonal
Immunogen	Human CCL (chronic lymphocytic leukemia) cells
Specificity	This antibody recognizes CD19 (B4), a 95 kDa type I transmembrane glycoprotein of immunoglobulin superfamily, expressed on B lymphocytes and follicular dendritic cells; it is lost on plasma cells.
Formulation	PBS, pH~7.4 with 15 mM Sodium Azide as preservative State: Purified State: Liquid purified Ig fraction (> 95% pure by SDS-PAGE)
Concentration	lot specific
Purification	Protein-A affinity chromatography
Conjugation	Unconjugated
Storage Condition	Store undiluted at 2-8°C. DO NOT FREEZE!
Gene Name	CD19 molecule
Database Link	Entrez Gene 930 Human UniProt ID P15391
Background	CD19 is a transmembrane glycoprotein of Ig superfamily expressed by B cells from the time of heavy chain rearrangement until plasma cell differentiation. It forms a tetrameric complex with CD21 (complement receptor type 2), CD81 (TAPA-1) and Leu13. Together with BCR (B cell antigen receptor), this complex signals to decrease B cell treshold for activation by the antigen. Besides being signal-amplifying coreceptor for BCR, CD19 can also signal independently of BCR coligation and it turns out to be a central regulatory component upon which multiple signaling pathways converge. Mutation of the CD19 gene results in hypogammaglobulinemia, whereas CD19 overexpression causes B cell hyperactivity.
Synonyms	Leu-12, B-cell marker
Reference Data
Protein Families	Druggable Genome, Transmembrane
Protein Pathways	B cell receptor signaling pathway, Hematopoietic cell lineage, Primary immunodeficiency

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