Aph-1, short for Anterior pharynx-defective 1, is an integral component of the gamma-secretase complex, which is a multi-protein intramembrane-cleaving aspartyl protease. The gamma-secretase complex is responsible for the proteolytic cleavage of a number of transmembrane proteins, including the amyloid precursor protein (APP), from which the amyloid-beta peptide is generated, and Notch, a protein involved in cell differentiation processes. Aph-1 exists in multiple isoforms due to alternative splicing, with Aph-1a and Aph-1b being the most well-studied. The role of Aph-1 within the gamma-secretase complex is to contribute to the formation of the active site of the enzyme and to assist in the stabilization of the complex, which also includes presenilin (the catalytic subunit), nicastrin, and PEN-2. The precise function of Aph-1 within the complex is not fully elucidated, but it is believed to be essential for the proper assembly and trafficking of the gamma-secretase complex to various cellular compartments where it exerts its protease activity.
The gamma-secretase complex, including Aph-1, is embedded in the cellular membrane, and its activity can be modulated by various factors including lipid composition, post-translational modifications, and interactions with substrate and other regulatory proteins. The intricate regulation of this complex is critical, as it has a central role in cellular signaling pathways and maintaining cellular homeostasis. The study of Aph-1 and the gamma-secretase complex continues to be an area of intense research due to its relevance in cellular physiology and the pathogenesis of certain diseases.
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| Product Name | CAS # | Catalog # | QUANTITY | Price | Citations | RATING |
|---|---|---|---|---|---|---|
Forskolin | 66575-29-9 | sc-3562 sc-3562A sc-3562B sc-3562C sc-3562D | 5 mg 50 mg 1 g 2 g 5 g | $78.00 $153.00 $740.00 $1413.00 $2091.00 | 73 | |
Forskolin directly stimulates adenylyl cyclase, increasing cAMP levels in cells. Elevated cAMP activates PKA, which can phosphorylate target proteins that may include components of the gamma-secretase complex, thereby potentially enhancing the assembly or activity of Aph-1 containing complexes. | ||||||
Dibutyryl-cAMP | 16980-89-5 | sc-201567 sc-201567A sc-201567B sc-201567C | 20 mg 100 mg 500 mg 10 g | $47.00 $136.00 $492.00 $4552.00 | 74 | |
Dibutyryl cAMP is a cell-permeable cAMP analog that activates PKA. PKA activation can result in the phosphorylation of proteins within the gamma-secretase complex, which includes Aph-1, leading to an increase in its proteolytic activity. | ||||||
D-erythro-Sphingosine-1-phosphate | 26993-30-6 | sc-201383 sc-201383D sc-201383A sc-201383B sc-201383C | 1 mg 2 mg 5 mg 10 mg 25 mg | $165.00 $322.00 $570.00 $907.00 $1727.00 | 7 | |
Sphingosine-1-phosphate (S1P) is a bioactive lipid that acts through G protein-coupled receptors to activate intracellular signaling cascades. S1P receptor activation can lead to the modulation of intracellular calcium and other downstream pathways which could indirectly enhance the stability or activity of Aph-1 in the gamma-secretase complex. | ||||||
Ionomycin | 56092-82-1 | sc-3592 sc-3592A | 1 mg 5 mg | $78.00 $270.00 | 80 | |
Ionomycin is a calcium ionophore that raises intracellular calcium levels. Increased calcium can affect various calcium-dependent proteases and kinases, potentially influencing the post-translational modification of Aph-1 and indirectly enhancing its activity within the gamma-secretase complex. | ||||||
PMA | 16561-29-8 | sc-3576 sc-3576A sc-3576B sc-3576C sc-3576D | 1 mg 5 mg 10 mg 25 mg 100 mg | $41.00 $132.00 $214.00 $500.00 $948.00 | 119 | |
PMA is a PKC activator that mimics diacylglycerol. PKC can phosphorylate members of the gamma-secretase complex or associated regulatory proteins, which may lead to increased functionality or stability of Aph-1. | ||||||
Bryostatin 1 | 83314-01-6 | sc-201407 | 10 µg | $245.00 | 9 | |
Bryostatin 1 is a PKC modulator that can activate PKC isozymes. Activation of PKC has been linked to the enhancement of gamma-secretase complex activity, which includes Aph-1, thus potentially increasing its functional activity. | ||||||
Rolipram | 61413-54-5 | sc-3563 sc-3563A | 5 mg 50 mg | $77.00 $216.00 | 18 | |
Rolipram is a selective inhibitor of phosphodiesterase 4 (PDE4), leading to increased cAMP levels in cells. The rise in cAMP activates PKA, which can phosphorylate gamma-secretase complex components, potentially enhancing Aph-1 activity. | ||||||
FTY720 | 162359-56-0 | sc-202161 sc-202161A sc-202161B | 1 mg 5 mg 25 mg | $33.00 $77.00 $120.00 | 14 | |
FTY720 is a sphingosine analog that after phosphorylation can act as an S1P receptor modulator. It can influence the signaling pathways that modulate the gamma-secretase complex activity, leading to potential enhancement of Aph-1 functionality. | ||||||
Bisindolylmaleimide I (GF 109203X) | 133052-90-1 | sc-24003A sc-24003 | 1 mg 5 mg | $105.00 $242.00 | 36 | |
BIM-1 is a selective PKC inhibitor. While typically inhibitory, its selective modulation of PKC isozymes can lead to a compensatory upregulation or activation of alternative pathways that enhance the activity of the Aph-1 subunit in the gamma-secretase complex. | ||||||