Recombinant Human Tumor necrosis factor ligand superfamily member 13B (TNFSF13B), partial (Active)

Product Specifications

Product Name Alternative

B lymphocyte stimulator, B-cell-activating factor, BAFF, Dendritic cell-derived TNF-like molecule, TNF- and APOL-related leukocyte expressed ligand 1

Abbreviation

Recombinant Human TNFSF13B protein, partial (Active)

Gene Name

TNFSF13B

UniProt

Q9Y275

Expression Region

M+134-285aa

Organism

Homo sapiens (Human)

Target Sequence

M+AVQGPEETVTQDCLQLIADSETPTIQKGSYTFVPWLLSFKRGSALEEKENKILVKETGYFFIYGQVLYTDKTYAMGHLIQRKKVHVFGDELSLVTLFRCIQNMPETLPNNSCYSAGIAKLEEGDELQLAIPRENAQISLDGDVTFFGALKLL

Tag

Tag-Free

Type

Active Protein & In Stock Protein

Source

E.Coli

Field of Research

Cancer

Relevance

Cytokine that binds to TNFRSF13B/TACI and TNFRSF17/BCMA. TNFSF13/APRIL binds to the same 2 receptors. Together, they form a 2 ligands -2 receptors pathway involved in the stimulation of B- and T-cell function and the regulation of humoral immunity. A third B-cell specific BAFF-receptor (BAFFR/BR3) promotes the survival of mature B-cells and the B-cell response. {ECO:0000269|PubMed:10973284}.; Isoform 2 seems to inhibit isoform 1 secretion and bioactivity. {ECO:0000250}.; Isoform 3: Acts as a transcription factor for its own parent gene, in association with NF-kappa-B p50 subunit, at least in autoimmune and proliferative B-cell diseases. The presence of Delta4BAFF is essential for soluble BAFF release by IFNG/IFN-gamma-stimulated monocytes and for B-cell survival. It can directly or indirectly regulate the differential expression of a large number of genes involved in the innate immune response and the regulation of apoptosis. {ECO:0000269|PubMed:10973284}.

Endotoxin

Less than 1.0 EU/μg as determined by LAL method.

Purity

>95% as determined by SDS-PAGE.

Activity

Yes

Bioactivity

Fully biologically active when compared to standard. The ED50 as determined by a mouse splenocyte survival assay is 0.5-2 µg/ml.

Form

Lyophilized powder

Buffer

Lyophilized from a 0.2 μm filtered concentrated solution in PBS, pH 7.0.

Reconstitution

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.

Function

Molecular Weight

17.2 kDa

Storage Conditions

The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.