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Species of Origin
Human
Expression System
CHO
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Affinity Tag
His-Avi Tag(N-term)
Human IgG1 Fc Tag (C-term)Storage Buffer
Lyophilized from a 0.2 µm filtered solution of PBS, pH 7.4.
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Purity
>90% as determined by SDS-PAGE analysis.
Molecular weight
The protein has a calculated MW of 58.72 kDa.
The protein migrates as 62-75 kDa under reducing condition (SDS-PAGE analysis). -
Endotoxin Level
<0.1 EU per 1 μg of the protein by the LAL method.
Form
Lyophilized
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Specifications
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Background
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Background
Human CD19 is a B-lymphocyte-specific cell surface glycoprotein and a key regulator of B-cell receptor signaling. It plays a critical role in B-cell development, activation, and immune response modulation. CD19 is widely used as a biomarker for B-cell malignancies and autoimmune diseases, and serves as a therapeutic target for monoclonal antibody and CAR-T cell therapies.
Synonyms
B-lymphocyte antigen CD19, CVID3, Leu-12, T-cell surface antigen Leu-12, B-cell surface antigen CD19, CD19, B4, MGC12802
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Uniprot ID
P15391
Sequence Note
Glu21-Lys291
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Instruction
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Reconstitution
It is recommended to reconstitute the lyophilized protein in sterile H₂O to a concentration of 200 μg/mL and incubate the stock solution for at least 20 min to ensure sufficient re-dissolved.
Shipping
The product is shipped with polar packs. Upon receipt, store it immediately at -20°C or lower for long term storage.
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Stability & Storage
This product is stable after storage at:
- -20°C for 12 months in lyophilized state from date of receipt.
- -20°C or -80°C for 1 month under sterile conditions after reconstitution.
Avoid repeated freeze/thaw cycles.
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Image
![SDS-PAGE analysis of recombinant Human CD19.]()
SDS-PAGE analysis of recombinant Human CD19.
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Publication
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Datasheet & Documents
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Disclaimer：For Research Use or Further Manufacturing Only.
