CD19 Rabbit Polyclonal Antibody

CAT#: TA332563

Rabbit anti-CD19 Polyclonal Antibody

Product Images

Western blot analysis of extracts of various cell lines, using CD19 antibody.

Specifications

Product Data

• Applications: ELISA, ICC/IF, WB
• Recommended Dilution: WB,1:500 - 1:1000
  IF/ICC,1:50 - 1:200
  ELISA,Recommended starting concentration is 1 μg/mL. Please optimize the concentration based on your specific assay requirements.
• Reactivities: Human, Mouse, Rat
• Host: Rabbit
• Isotype: IgG
• Clonality: Polyclonal
• Formulation: Buffer: PBS with 0.02% sodium azide,50% glycerol,pH7.3.
• Concentration: lot specific
• Purification: Affinity purification
• Conjugation: Unconjugated
• Storage: Store at -20℃. Avoid freeze / thaw cycles.
• Stability: Stable for 12 months from date of receipt.
• Predicted Protein Size: 61kDa
• Gene Name: CD19 molecule
• Database Link:
  NP_001761
  Entrez Gene 12478 MouseEntrez Gene 365367 RatEntrez Gene 930 Human
  UniProt ID P15391
• Background: This gene encodes a member of the immunoglobulin gene superfamily. Expression of this cell surface protein is restricted to B cell lymphocytes. This protein is a reliable marker for pre-B cells but its expression diminishes during terminal B cell differentiation in antibody secreting plasma cells. The protein has two N-terminal extracellular Ig-like domains separated by a non-Ig-like domain, a hydrophobic transmembrane domain, and a large C-terminal cytoplasmic domain. This protein forms a complex with several membrane proteins including complement receptor type 2 (CD21) and tetraspanin (CD81) and this complex reduces the threshold for antigen-initiated B cell activation. Activation of this B-cell antigen receptor complex activates the phosphatidylinositol 3-kinase signalling pathway and the subsequent release of intracellular stores of calcium ions. This protein is a target of chimeric antigen receptor (CAR) T-cells used in the treatment of lymphoblastic leukemia. Mutations in this gene are associated with the disease common variable immunodeficiency 3 (CVID3) which results in a failure of B-cell differentiation and impaired secretion of immunoglobulins. CVID3 is characterized by hypogammaglobulinemia, an inability to mount an antibody response to antigen, and recurrent bacterial infections. Alternative splicing results in multiple transcript variants encoding distinct isoforms.
• Synonyms: B4; CVID3

Reference Data

• Protein Families: Druggable Genome, Transmembrane
• Protein Pathways: B cell receptor signaling pathway, Hematopoietic cell lineage, Primary immunodeficiency