bsm-60605R [Primary Antibody]
CD19 Recombinant Antibody
www.biossusa.com
[email protected]
800.501.7654 [DOMESTIC]
+1.781.569.5821 [INTERNATIONAL]
DATASHEET

Host: Rabbit

Target Protein: CD19

Clonality: Recombinant

Isotype: IgG

Entrez Gene: 930

Swiss Prot: P15391

Source: KLH conjugated synthetic peptide derived from human CD19

Purification: Purified by Protein A.

Storage Buffer: 0.01M TBS(pH7.4) with 1% BSA, 0.02% Proclin300 and 50% Glycerol.

Storage: Shipped at 4°C. Store at -20°C for one year. Avoid repeated freeze/thaw cycles.

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. [provided by RefSeq, Jul 2020]

Size: 100ul

Concentration: 1mg/ml

Applications: WB=1:500-2000
IHC-P=1:1000
ICC=1:50
IF=1:100-500
Flow-Cyt=1:100

Predicted Molecular Weight: 59


Cross Reactive Species: Human

For research use only. Not intended for diagnostic or therapeutic use.

VALIDATION IMAGES

Tissue: Human spleen Section type: Formalin fixed & Paraffin -embedded section Retrieval method: High temperature and high pressure Retrieval buffer: Tris/EDTA buffer, pH 9.0 Primary ab dilution: 1:1000 Primary ab incubation condition: 1 hour at room temperature Secondary ab: SP Kit(Rabbit) Counter stain: Hematoxylin (Blue) Comment: Color brown is the positive signal for bsm-60605R


Tissue: Human tonsil Section type: Formalin fixed & Paraffin -embedded section Retrieval method: High temperature and high pressure Retrieval buffer: Tris/EDTA buffer, pH 9.0 Primary ab dilution: 1:1000 Primary ab incubation condition: 1 hour at room temperature Secondary ab: SP Kit(Rabbit) Counter stain: Hematoxylin (Blue) Comment: Color brown is the positive signal for bsm-60605R


Lane 1: Human Raji cell Lysates. Probed with CD19 monoclonal Antibody, unconjugated (bsm-60605R) at 1:1000 dilution and 4°C overnight incubation. Followed by conjugated secondary antibody incubation at 1:20000 for 60 min at 37˚C.