PBEF/Visfatin/NAMPT Antibody [Unconjugated]

Western blot shows lysates of human heart tissue, 293T human embryonic kidney cell line, and A431 human epithelial carcinoma cell line. PVDF membrane was probed with 0.2 µg/mL of Sheep Anti-Human PBEF/Visfatin Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4335) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). A specific band was detected for PBEF/Visfatin at approximately 52 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Human peripheral blood mononuclear cells were treated for 24 hours with 50 ng/mL PMA then stained with Sheep Anti-Human PBEF/Visfatin Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4335, filled histogram) or control antibody (Catalog # 5‑001‑A, open histogram), followed by Northern­Lights™ 637-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # NL011) To facilitate intra­cellular staining, cells were fixed with paraformaldehyde and permeabilized with saponin.

Simple Western lane view shows lysates of HEK293T human embryonic kidney cell line, loaded at 0.2 mg/mL. A specific band was detected for PBEF/Visfatin at approximately 58 kDa (as indicated) using 2 µg/mL of Sheep Anti-Human PBEF/Visfatin Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4335) followed by 1:50 dilution of HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system.

• Reactivity: Hu
• Applications: WB, Simple Western, CyTOF-ready, Flow
• Clonality: Polyclonal
• Host: Sheep
• Conjugate: Unconjugated
• Concentration: LYOPH

PBEF/Visfatin/NAMPT Antibody [Unconjugated] Summary

• Immunogen: E. coli-derived recombinant human PBEF/Visfatin isoform 1
  Pro27-His491
  Accession # P43490
• Specificity: Detects human PBEF/Visfatin in direct ELISAs and Western blots. In direct ELISAs, approximately 50% cross‑reactivity with recombinant rat PBEF is observed, and approximately 25% cross-reactivity with recombinant mouse PBEF is observed.
• Source: N/A
• Isotype: IgG
• Clonality: Polyclonal
• Host: Sheep
• Gene: NAMPT
• Purity Statement: Antigen Affinity-purified

Applications/Dilutions

• Dilutions:
  • CyTOF-ready
  • Intracellular Staining by Flow Cytometry 0.25 ug/10^6 cells
  • Simple Western 2 ug/mL
  • Western Blot 0.2 ug/mL

Packaging, Storage & Formulations

• 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.
• Buffer: 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.
• Preservative: No Preservative
• Concentration: LYOPH
• Reconstitution Instructions: Reconstitute at 0.2 mg/mL in sterile PBS.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for PBEF/Visfatin/NAMPT Antibody [Unconjugated]

• 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

Background

PBEF (pre-B cell colony-enhancing factor; also visfatin and nicotinamide phosphoribosyltransferase) is a 52 kDa member of the NAPRTase family of molecules. It functions both intracellularly and extracellularly, where it participates in NAD synthesis and insulin receptor activation, respectively. Human PBEF is 491 amino acids in length and contains no signal sequence. There is at least one alternative splice form that shows a 5 aa substitution for the C-terminal 128 amino acids (aa 364-491). Over aa 27-491, human PBEF shares 96%, 97%, and 96% aa identity with mouse, porcine, and canine PBEF, respectively.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

Bioinformatics

• Gene Symbol: NAMPT
• Uniprot:
  • P43490()