Technical Data
Plectin, a 500kD intermediate filament binding protein, is localized to the cytoplasm and acts to both stabilize and give strength to cells via cross-linking (1). Plectin cross-links intermediate filaments to microtubules and microfilaments, and anchors intermediate filaments to the plasma and nuclear membranes (2,3). Plectin binds many proteins, including actin, vimentin, and Lamin B. Phosphorylation by PKA or PKC results in decreased binding to Lamin B, and phosphorylation by PKA enhances the plectin-vimentin interactions (4).

Plasma membrane attachment sites of intermediate filaments and microfilaments (actin) such as desmosomes and hemidesmosomes, Z-line structures and dense plaques of striated and smooth muscle. Strong positive reaction is also found with endothelia, fibroblasts and infiltrating cells (e.g. lymphocytes).

Suitable for use Western Blot and Immunohistochemistry. Other applications not tested.

Recommended Dilutions:
Western Blot: 2ug/ml
Immunohistochemistry (Frozen): 5-10ug/ml
Optimal dilutions to be determined by the researcher.

Storage and Stability:
May be stored at 4C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20C. Aliquots are stable for 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
MabIgG16D75Highly Purified
50ug-20CBlue IceHumanMouse
Purified by Protein G affinity chromatography. 95% by SDS-PAGE.
Supplied as a liquid in PBS.
Recognizes human plectin. Species Crossreactivity: mouse and rat
Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.
1. Liu, C.G., et al. Human plectin: organization of the gene, sequence analysis, and chromosome localization (8q24). Proc Natl Acad Sci U S A. 93: 427883 (1996). 2. Wiche, G. Role of plectin in cytoskeleton organization and dynamics. J. Cell. Sci. 111: 24772486 (1998). 3. Ruhrberg, C. and F.M. Watt. The plakin family: versatile organizers of cytoskeletal architecture. Curr. Opin. Genet. Dev. 7: 392397 (1997). 4. Foisner, R., et al. Protein kinase A and protein kinase C-regulated interaction of plectin with lamin B and vimentin. Proc. Natl. Acad. Sci. USA 88: 3812-3816 (1991)