PBEF, Recombinant, Human (Pre-B cell Colony Enhancing Factor, Pre-B cell Enhancing Factor, 1110035O14Rik, DKFZP666B131, MGC117256, Nicotinamide Phosphoribosyltransferase, NAmPRTase, NAMPT, Pre-B cell Colony Enhancing Factor 1, PBEF1, Visfatin, VF)

Supplier:

United States Biological

Cat no: P3113-97R2

PBEF, Recombinant, Human (Pre-B cell Colony Enhancing Factor, Pre-B cell Enhancing Factor, 1110035O14Rik, DKFZP666B131, MGC117256, Nicotinamide Phosphoribosyltransferase, NAmPRTase, NAMPT, Pre-B cell Colony Enhancing Factor 1, PBEF1, Visfatin, VF)

Visfatin is a putative cytokine originally identified as PBEF (Pre-B cell-enhancing factor), subsequently determined to be a nicotinamide phosphoribosyltransferase (NAMPT) enzyme and member of the NAPRTase family, involved in catalyzing the biosynthesis of NAD from nicotinamide. Visfatin is highly expressed in bone marrow, muscle and liver tissue and increases in expression in response to endotoxin, in amniotic epithelial cells following lipopolysaccharide (LPS) stimulation, and during the activation of T and B cells, dendritic cells and macrophages, suggesting a role in inflammatory processes. \n\nRecombinant corersponding to full length, human visfatin (a.a.1-491) fused at the N-terminus to a His-Tag, expressed in E. coli. \n\nBiological Activity:\nMimics insulin effects in differentiating 3T3-L1 cells.\n\nStorage and Stability:\nLyophilized powder may be stored at -20 degrees C. Stable for 12 months at -20 degrees C. Reconstitute with sterile PBS. Aliquot to avoid repeated freezing and thawing. Store at -20 degrees C. Reconstituted product is stable for 6 months at -20 degrees C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.\n

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SPECIFICATIONS

Catalog Number

P3113-97R2

Size

10ug

Form

Supplied as a lyophilized powder with no additives. Reconstitute with sterile PBS to 0.1-1mg/ml.

Purity

~95% (SDS-PAGE). Endotoxin: (same/less than)0.1ng/ug.

Alternative Names

EC=2.4.2.12

Read more on Supplier website

SUPPLIER INFO

United States Biological

Address:

4 Technology Way, Salem, MA 01970, US

Phone:

+1 800 520 3011

Website:

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