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Specifications

Clone Host Grade Applications Monoclonal Rabbit Supernatant B IP IH IC

Presenilin (PS) facilitates gamma-secretase cleavage of the beta-amyloid precursor protein and the intramembraneous cleavage of Notch1 (1). Presenilin (PS) is essential for the gamma-cleavage required for the generation of the C terminus of amyloid beta-protein (Abeta). The discovery that a deficiency of presenilin 1 (PS1) decreases the production of amyloid beta-protein (Abeta) identified the presenilins as important mediators of the gamma-secretase cleavage of beta-amyloid precursor protein (APP). It has been shown that two conserved transmembrane (TM) aspartates in PS1 are critical for Abeta production, providing evidence that PS either functions as a required diaspartyl cofactor for gamma-secretase or is itself gamma-secretase. Presenilin 2 (PS2) shares substantial sequence and possibly functional homology with PS1. Here, we show that the two TM aspartates in PS2 are also critical for gamma-secretase activity, providing further evidence that PS2 is functionally homologous to PS1 (2). PS are found primarily within intracellular membranes, including the endoplasmic reticulum (ER) and the trans-Golgi network as well as the plasma membrane. PS are also expressed in most cell types throughout development (3).
Catalog #	P6300-49A
Applications	Suitable for use in Western Blot, Immunoprecipitation, Immunohistochemistry, Immunocytochemistry. Other applications not tested.
Recommended Dilution	Western Blot: 1:200,000
	Immunohistochemistry: 1:50-1:100
	mmunocytochemistry: 1:100-1:250
	Immunoprecipitation: 1:50
	Optimal dilutions to be determined by the researcher.
Storage and Stability	May be stored at 4°C for short-term only. For long-term storage, store at -20°C. Aliquots are stable for at least 12 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Clone Type	Monoclonal
Isotype	IgG
Clone No	9E468
Host	Rabbit
Source	Human
Concentration	Not determined
Form	Supplied as a liquid in 50 mM Tris-Glycine, pH 7.4, 0.15 M sodium chloride, 40% Glycerol, 0.01% sodium azide and 0.05% BSA.
Purity	Supernatant
Immunogen	A synthetic peptide corresponding to residues on the C-terminus of human Presenilin 2.
Specificity	Recognizes human Presenilin 2.
Important Note	This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.