Testing Data
(The specific activity of PDE4A was determined to be 1082 nmol/min/mg as per activity assay protocol.)
PDE4A active protein
PDE4A, Active
Store product at -70 degree C. For optimal storage, aliquot target into smaller quantities after centrifugation and store at recommended temperature. For most favorable performance, avoid repeated handling and multiple freeze/thaw cycles.
Testing Data
(The specific activity of PDE4A was determined to be 1082 nmol/min/mg as per activity assay protocol.)
Testing Data
(The specific activity of PDE4A was determined to be 1082 nmol/min/mg as per activity assay protocol.)
Testing Data #2
(The purity was determined to be > 95% by densitometry.)
Testing Data #2
(The purity was determined to be > 95% by densitometry.)
Scientific Background: PDE4A is a member of the phosphodiesterase family of proteins that play a critical role in regulating intracellular levels of cAMP. In vitro phosphorylation of PDE4A by the PKA-catalytic subunit increases the enzyme's sensitivity to Mg (2+), leading to a 4-fold increase in cAMP hydrolysis without affecting the Km. PDE4 is widely expressed in brain tumors and promotes their growth and treatment with PDE4A inhibitor Rolipram overcomes tumor resistance and mediates tumor regression (1). PDE4A expression is altered in patients with bipolar disorder and is a new therapeutic avenue for treatment of this disorder (2).
NCBI and Uniprot Product Information
NCBI Description
The protein encoded by this gene belongs to the cyclic nucleotide phosphodiesterase (PDE) family, and PDE4 subfamily. This PDE hydrolyzes the second messenger, cAMP, which is a regulator and mediator of a number of cellular responses to extracellular signals. Thus, by regulating the cellular concentration of cAMP, this protein plays a key role in many important physiological processes. Alternatively spliced transcript variants encoding different isoforms have been described for this gene.[provided by RefSeq, Jul 2011]
Uniprot Description
PDE4A: Hydrolyzes the second messenger cAMP, which is a key regulator of many important physiological processes. Isoform 1 interacts with LYN. Isoform 2 and isoform 6 interact weakly with LYN. Isoform 1, isoform 2 and isoform 6 interact with ARRB2. Isoform 1 is widely expressed. Isoform 2 is abundant in liver, stomach, testis, thyroid and adrenal glands. It is also found in placenta, kidney, pancreas, ovary, uterus, skin, monocytes, mast cells, macrophages, as well as in bronchial smooth muscle. Isoform 6 is expressed at high levels in the heart and small intestine. It is also found in the brain, kidney, spleen, colon, salivary gland, ovary and peripheral blood lymphocytes. Isoform 7 is expressed predominantly in skeletal muscle and brain and at lower levels in the testis. Isoform 7 is expressed in the brain. Found in specific neuronal subpopulations in cortex, spinal cord and cerebellum. Isoform 1, isoform 2, isoform 6 and isoform 7 are inhibited by rolipram and cilomilast. Isoform 1, isoform 2 and isoform 6 are inhibited by 4-[(3-butoxy-4-methoxyphenyl)-methyl]- 2-imidazolidinone (Ro 20-1724), roflumilast and denbufylline. Belongs to the cyclic nucleotide phosphodiesterase family. PDE4 subfamily. 7 isoforms of the human protein are produced by alternative splicing.
Protein type: EC 3.1.4.53; Nucleotide Metabolism - purine; Phosphodiesterase
Chromosomal Location of Human Ortholog: 19p13.2
Cellular Component: cytosol; membrane; nucleoplasm; perinuclear region of cytoplasm; plasma membrane
Molecular Function: 3',5'-cyclic-AMP phosphodiesterase activity; cAMP binding; protein binding
Biological Process: cAMP catabolic process
Research Articles on PDE4A
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Product Notes
The PDE4A pde4a (Catalog #AAA515634) is an Active Protein produced from Sf9 cells and is intended for research purposes only. The product is available for immediate purchase. It is sometimes possible for the material contained within the vial of "PDE4A, Active Protein" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
All products in the AAA Biotech catalog are strictly for research-use only, and are absolutely not suitable for use in any sort of medical, therapeutic, prophylactic, in-vivo, or diagnostic capacity. By purchasing a product from AAA Biotech, you are explicitly certifying that said products will be properly tested and used in line with industry standard. AAA Biotech and its authorized distribution partners reserve the right to refuse to fulfill any order if we have any indication that a purchaser may be intending to use a product outside of our accepted criteria.Disclaimer
Though we do strive to guarantee the information represented in this datasheet, AAA Biotech cannot be held responsible for any oversights or imprecisions. AAA Biotech reserves the right to adjust any aspect of this datasheet at any time and without notice. It is the responsibility of the customer to inform AAA Biotech of any product performance issues observed or experienced within 30 days of receipt of said product. To see additional details on this or any of our other policies, please see our Terms & Conditions page.Item has been added to Shopping Cart
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