Recombinant Human PBEF/NAMPT Protein (His Tag)

Cat. No : CDRP-00430

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Target Information
Target Name	PBEF/NAMPT
Synonyms	Pre-B cell-enhancing factor; Nicotinamide phosphoribosyltransferase; NAmPRTase; Nampt; Pre-B-cell colony-enhancing factor 1; Visfatin; NAMPT; PBEF; PBEF1
UniProt ID	P12104
Accession	P43490

Product Details
Expression Host	E.coli
Species	Human
Tag	N-His
Molar Mass	57 kDa
Sequence	Ala 301-Ser 412

Background
Pre-B cell colony enhancing factor (PBEF) was originally identified as a cytokine that potentiated the clonal expansion and differentiation of pre-B cells; but it is also acknowledged to be the ubiquitous intracellular enzyme nicotinamide phosphoribosyltranferase (NAMPT) and the adipokine “visfatin”. PBEF is constitutively expressed in the fetal membranes where its greatest expression is in the amnion. It has intracellular and extracellular forms. Most of the intracellular functions of PBEF are due to its role as a Nampt which can induce angiogenesis through upregulation of VEGF and VEGFR and secretion of MCP-1. Extracellular PBEF has been shown to increase inflammatory cytokines; such as TNF-α; IL-1β; IL-16; and TGF-β1. PBEF also increases the production of IL-6; TNF-α; and IL-1β in CD14+ monocyctes; macrophages; and dendritic cells; enhances the effectiveness of T cells.

Background

Pre-B cell colony enhancing factor (PBEF) was originally identified as a cytokine that potentiated the clonal expansion and differentiation of pre-B cells; but it is also acknowledged to be the ubiquitous intracellular enzyme nicotinamide phosphoribosyltranferase (NAMPT) and the adipokine “visfatin”. PBEF is constitutively expressed in the fetal membranes where its greatest expression is in the amnion. It has intracellular and extracellular forms. Most of the intracellular functions of PBEF are due to its role as a Nampt which can induce angiogenesis through upregulation of VEGF and VEGFR and secretion of MCP-1. Extracellular PBEF has been shown to increase inflammatory cytokines; such as TNF-α; IL-1β; IL-16; and TGF-β1. PBEF also increases the production of IL-6; TNF-α; and IL-1β in CD14+ monocyctes; macrophages; and dendritic cells; enhances the effectiveness of T cells.

Properties
Purity	>85% as determined by reducing SDS-PAGE.
Formulation	Lyophilized from a 0.2 μm filtered solution of 20 mM PBS, 150 mM NaCl, pH7.4.
Reconstitution	Please refer to the printed manual for detailed information.
Shipping	This product is provided as lyophilized powder which is shipped with ice packs.
Storage	Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80 °C. Reconstituted protein solution can be stored at 4-8 °C for 2-7 days. Aliquots of reconstituted samples are stable at < -20 °C for 3 months.

! For research use only. Not intended for any clinical use.