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Sino Biological™ CD19 Recombinant Human Protein, His Tag DFS Item


This recombinant protein is expressed from a DNA sequence encoding the extracellular domain (Met 1-Lys 291) of human CD19 (AAB60697) fused to a polyhistidine tag at the C-terminus

Manufacturer: life technologies  LS11880H08H250

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 Disclaimers

For Research Use Only. Not for use in diagnostic procedures.

Catalog No. 11880H08HL

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Description & Specifications

Specifications

Gene ID (Entrez) 930
Format Lyophilized
Validated Application Assay Standard
Quantity 5 x 50μg
Common Name CD19 molecule
Expression System Mammalian
Protein Family CD Proteins
Gene Symbol CD19
Protein Subtype Other Proteins
Protein Tag His Tag
Molecular Weight 31.6kDa
Purity ≥90% by SDS-PAGE
Storage Requirements Store at -20° to -70°C. Store aliquots under sterile conditions at -20°C. Avoid repeated freeze-thaw cycles. Expires one year from date of receipt when stored as instructed.
Gene Alias B4, mgC12802
For Use With (Application) Proteins, Expression, Isolation & Analysis; Enzyme & Protein Activity Assays; Protein Assay Controls, Reference Standards & Accessories
Structural Form Truncated/Recombinant/Cell Surface Protein
Endotoxin Concentration <1 EU/μg

Cluster of Differentiation 19 (CD19) recombinant human protein is supplied as a lyophilized powder. This protein is suitable for use in analysis of protein structure the study of protein-protein interactions, and cell biology research applications. It can also be used as an immunogen, or as a protein standard.&line-break;Background: Cluster of Differentiation 19 (CD19), is a single-pass type I membrane protein which contains two Ig-like C2-type (immunoglobulinlike) domains. CD19 forms a complex with CD21, CD81 and CD225 in the membrane of mature B cells. It interacts with VAV. It interacts with GRB2 and SOS when phosphorylated on Tyr-348 and/or Tyr-378. CD19 also interacts with PLCG2 when phosphorylated on Tyr-409. CD19 is an important pan B cell marker and co-stimulatory protein in humans and mice. CD19 is a hallmark differentiation antigen of the B cell lineage and positively regulates antigen receptor signal transduction in mature B cells. CD19 defines signaling thresholds for the Ag receptor as well as other cell surface receptors that regulate B lymphocyte selection, activation, and differentiation. Defects in CD19 are a cause of hypogammaglobulinemia.

  • N-terminal Sequence Analysis: Pro 20
  • Activity: Measured by its binding ability in a functional ELISA; immobilized human CD19 at 2μg/mL (100μL/well) has been shown to bind biotinylated human CD9 with a linear range of 0.032-0.8μg/mL
  • Formulation: lyophilized in PBS, pH 7.4, 5% mannitol, 5% trehalose, and 0.02% Tween®-80
  • Reconstitution: Dissolve the protein in sterile double-distilled water to a concentration of 0.2mg/mL or lower; aliquot and use as soon as possible

Shipping Condition: Room Temperature. Manufactured by Sino Biological (China).