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Home > Products > Recombinant Proteins > Recombinant Human TNFSF13B protein, Fc-tagged, FITC-Labeled

Recombinant Human TNFSF13B protein, Fc-tagged, FITC-Labeled

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Cat.No.:
TNFSF13B-1819H
Product Overview:
FITC-Labeled Human BAFF, Fc Tag is expressed from human HEK293 cells. It contains AA Ala 134 - Leu 285 (Accession # AAH20674.1). It is the FITC labeled form of Human BAFF, Fc Tag. Excitation source: 488 nm spectral line, argon-ion laser. Excitation Wavelength: 494 nm; Emission Wavelength: 518 nm. The primary amines in the side chains of lysine residues and the N-terminus of the protein are conjugated with FITC using standard chemical labeling method. The residual FITC is removed by molecular seive treatment during purification process. The FITC to protein molar ratio is 1.5-3.
Description:
B-cell activating factor (BAFF) is also known as tumor necrosis factor ligand superfamily member 13B , TNFSF13B, BAFF, B Lymphocyte Stimulator (BLyS) , cluster of differentiation 257 (CD257), DTL, TNF- and APOL-related leukocyte expressed ligand (TALL-1), THANK, TNFSF20, ZTNF4, and is a cytokine that belongs to the tumor necrosis factor (TNF) ligand family. This cytokine is a ligand for receptors TNFRSF13B/TACI, TNFRSF17/BCMA, and TNFRSF13C/BAFFR. This cytokine is expressed in B cell lineage cells, and acts as a potent B cell activator. It has been also shown to play an important role in the proliferation and differentiation of B cells. It is expressed as transmembrane protein on various cell types including monocytes, dendritic cells and bone marrow stromal cells. BAFF is the natural ligand of three unusual tumor necrosis factor receptors named BAFF-R, TACI, and BCMA, all of which have differing binding affinities for it. These receptors are expressed mainly on mature B lymphocytes (TACI is also found on a subset of T-cells and BCMA on plasma cells). TACI binds worst since its affinity is higher for a protein similar to BAFF, called a proliferation-inducing ligand (APRIL). BCMA displays an intermediate binding phenotype and will work with either BAFF or APRIL to varying degrees. Signaling through BAFF-R and BCMA stimulates B lymphocytes to undergo proliferation and to counter apoptosis. All these ligands act as heterotrimers (i.e. three of the same molecule) interacting with heterotrimeric receptors, although BAFF has been known to be active as either a hetero- or homotrimer. BAFF acts as a potent B cell activator and has been shown to play an important role in the proliferation and differentiation of B cells.
Source:
HEK293
Species:
Human
Tag :
Fc
Predicted N Terminal:
Glu
Form:
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4, 10% trehalose.
Bio-activity:
Immobilized Human BCMA, Fc Tag at 10 μg/mL (100 μL/well) can bind FITC-Labeled Human BAFF, Fc Tag with a linear range of 0.31-1.25 μg/mL.
Molecular Mass:
This protein carries a human IgG1 Fc tag at the N-terminus. The protein has a calculated MW of 44.5 kDa. The protein migrates as 55 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
Protein length:
AA Ala 134 - Leu 285
Endotoxin:
Less than 1.0 EU per μg by the LAL method.
Purity:
>95% as determined by SDS-PAGE.
Storage:
For long term storage, the product should be stored at lyophilized state at -20°C or lower. Please protect from light and avoid repeated freeze-thaw cycles. No activity loss is observed after storage at: 4-8°C for 12 months in lyophilized state; -70°C for 3 months under sterile conditions after reconstitution.
Reconstitution:
It is recommended that sterile water be added to the vial to prepare a stock solution of 0.2 ug/ul. Centrifuge the vial at 4ºC before opening to recover the entire contents.


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Optional requirements on this protein +Expand
C-fusion   N-fusion  Non-tagged
His   GST  Fc  Others
<1.0 eu/μg   <0.1 eu/μg  <0.01 eu/μg  Not required
Monomer Isolation   Dimer Isolation   Not required
>80% by SDS-PAGE   >90% by SDS-PAGE  >95% by SDS-PAGE  Others
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45-1 Ramsey Road, Shirley, NY 11967, USA
USA: 1-631-559-9269  1-631-448-7888
Europe: 44-207-097-1828
FAX: 1-631-938-8127
EMAIL: info@creative-biomart.com

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