Rat PBEF/Visfatin Antibody

Catalog #: AF6384 Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
AF6384
AF6384-SP

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Summary Data Examples Preparation and Storage Reconstitution Calculator Background Product Datasheets Related Research Areas

Rat PBEF/Visfatin Antibody Summary

Species Reactivity

Rat

Specificity

Detects rat PBEF/Visfatin in direct ELISAs and Western blots. In direct ELISAs, approximately 25% cross‑reactivity with recombinant mouse PBEF and recombinant human PBEF is observed.

Source

Polyclonal Goat IgG

Purification

Antigen Affinity-purified

Immunogen

S. frugiperda insect ovarian cell line Sf 21derived recombinant rat PBEF/Visfatin
Gln25-His491
Accession # Q80Z29

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Applications

Recommended Concentration

Sample

Western Blot

1 µg/mL

See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Western Blot

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Detection of Rat PBEF by Western Blot. Western blot shows lysates of H4-II-E-C3 rat hepatoma cell line and rat liver tissue. PVDF Membrane was probed with 1 µg/mL of Goat Anti-Rat PBEF Antigen Affinity-purified Polyclonal Antibody (Catalog # AF6384) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF019). A specific band was detected for PBEF at approximately 54 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 8.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Reconstitute at 0.2 mg/mL in sterile PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: PBEF/Visfatin

PBEF (pre-B cell colony-enhancing factor; also visfatin and nicotinamide phosphoribosyltransferase/Nampt) is a 52‑54 kDa member of the NAPRTase family of molecules. It is a dimer that is found both intracellularly and extracellularly, where it participates in NAD synthesis and induces proinflammatory cytokine synthesis, respectively. PBEF has also been reported to show insulin-like effects on adipocytes by binding to the insulin receptor. Cells known to express PBEF include visceral adipocytes, neutrophils, and capillary endothelium. Rat PBEF is 491 amino acids in length. It contains no signal sequence but is secreted. Potential phosphorylation sites exist at Tyr34, Tyr188 and Ser398. Full‑length (aa 1‑491) rat PBEF shares 99% and 95% aa identity with mouse and human PBEF, respectively.

Long Name

Pre-B-Cell Colony-Enhancing Factor 1

Entrez Gene IDs

10135 (Human); 59027 (Mouse); 297508 (Rat)

Alternate Names

EC 2.4.2.12; MGC117256; NAmPRTase; NAMPT; nicotinamide phosphoribosyltransferase; NMPRTase; PBEF; PBEF1; PBEF1110035O14Rik; PBEF1DKFZp666B131; Pre-B cell-enhancing factor; pre-B-cell colony enhancing factor 1; Pre-B-cell colony-enhancing factor 1; VF; Visfatin