Cell Signaling Technology
XP Monoclonal Antibody

Product Pathways - Metabolism

Perilipin (D1D8) XP® Rabbit mAb #9349

Applications Reactivity Sensitivity MW (kDa) Isotype
W IP IHC-P IF-F IF-IC H M Endogenous 62 Rabbit IgG

Applications Key:  W=Western Blotting  IP=Immunoprecipitation  IHC-P=Immunohistochemistry (Paraffin)  IF-F=Immunofluorescence (Frozen)  IF-IC=Immunofluorescence (Immunocytochemistry)
Reactivity Key:  H=Human  M=Mouse
Species cross-reactivity is determined by western blot. Species enclosed in parentheses are predicted to react based on 100% sequence homology.

Protocols

Specificity / Sensitivity

Perilipin (D1D8) XP® Rabbit mAb detects endogenous levels of total perilipin protein.

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues around Ile419 of human perilipin protein.

Western Blotting

Western Blotting

Western blot analysis of extracts from human pre-adipocytes and adipocytes using Perilipin (D1D8) XP® Rabbit mAb (upper) and β-Actin Antibody #4967 (lower).

IHC-P (paraffin)

IHC-P (paraffin)

Immunohistochemical analysis of paraffin-embedded breast carcinoma using Perilipin (D1D8) XP® Rabbit mAb. Note specific staining of adipocytes.

IHC-P (paraffin)

IHC-P (paraffin)

Immunohistochemical analysis of parafin-embedded mouse brown fat using Perilipin (D1D8) XP® Rabbit mAb in the presence of control peptide (left) or antigen-specific peptide (right).


IF-IC

IF-IC

Confocal immunofluorescent analysis of 8-day differentiated 3T3-L1 cells, using Perilipin (D1D8) Rabbit mAb (green). Blue pseudocolor = DRAQ5® #4084 (fluorescent DNA dye).

IF-IC

IF-IC

Confocal immunofluorescent analysis of frozen mouse brown adipose tissue using Perilipin (D1D8) XP® Rabbit mAb (green). Blue pseudocolor = DRAQ5® #4084 (fluorescent DNA dye).

Background

Triacylglycerol is stored in lipid droplets as a primary energy reserve. Perilipin is localized at the periphery of lipid droplets and serves as a protective coating against lipases (1-3). Evidence suggests that PKA regulates lipolysis by phosphorylating perilipin (1,2,4,5). Phosphorylation of perilipin results in the conformational change that exposes lipid droplets to endogenous lipases, such as hormone-sensitive lipases (2). Hence, perilipin plays a pivotal role in lipid storage (2,5).

  1. Greenberg, A.S. et al. (1991) J Biol Chem 266, 11341-6.
  2. Brasaemle, D.L. (2007) J Lipid Res 48, 2547-59.
  3. Ducharme, N.A. and Bickel, P.E. (2008) Endocrinology 149, 942-9.
  4. Egan, J.J. et al. (1990) J Biol Chem 265, 18769-75.
  5. Brasaemle, D.L. et al. (2009) Mol Cell Biochem 326, 15-21.

Application References

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Companion Products


For Research Use Only. Not For Use In Diagnostic Procedures.

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