Thermo Fisher Scientific Human CD19 His-tag Recombinant Protein

Applications

Tested Dilution

Publications

Western Blot (WB)

Assay-dependent

-

Immunohistochemistry (IHC)

Assay-dependent

-

ELISA (ELISA)

Assay-dependent

-

Product Specifications

Expression System

HEK293 cells

Class

Recombinant

Type

Protein

Conjugate

Unconjugated Unconjugated Unconjugated

Form

Lyophilized

Storage conditions

-20°C or -80°C if preferred

Shipping conditions

Ambient

Product Specific Information

Reconstitution: Dissolve the protein in sterile double-distilled water to a concentration of 0.2 mg/mL or lower. It is recommended that the protein be aliquoted and used as soon as possible. Store aliquots under sterile conditions at -20°C. Avoid repeated freeze-thaw cycles.

Target Information

CD19 is a member of the immunoglobulin superfamily and has two Ig like domains. The CD19 molecule is expressed on 100% of the peripheral B cells as defined by expression of kappa or lambda light chains. CD19 appears to be expressed on myeloid leukemia cells, particularly those of monocytic lineage. Leukemia phenotype studies have demonstrated that the earliest and broadest B cell restricted antigen is the CD19 antigen. The receptor for CD19 is an important functional regulator of normal and malignant B cell proliferation, and is expressed in all B cell precursor leukemias. Lymphocytes proliferate and differentiate in response to various concentrations of different antigens. The ability of the B cell to respond in a specific, yet sensitive manner to the various antigens is achieved with the use of low-affinity antigen receptors. CD19 is a cell surface molecule which assembles with the antigen receptor of B lymphocytes in order to decrease the threshold for antigen receptor-dependent stimulation. Besides being a signal-amplifying coreceptor for the B cell receptor (BCR), CD19 can also signal independently of BCR co-ligation and is 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.

For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.