Neuromedin U-8 (porcine)
Catalog No : USB-N2171-80S
564.38€
0.00€
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| Product name | Neuromedin U-8 (porcine) | ||
|---|---|---|---|
| Catalog No | USB-N2171-80S | ||
| Supplier’s Catalog No | N2171-80S | ||
| Supplier | US Biologicals | ||
| Source antigen | Synthetic peptide | ||
| Reactivity | |||
| Cross reactivity | Porcine, | ||
| Applications | |||
| Molecular weight | |||
| Storage | -20°C | ||
|---|---|---|---|
| Other names | |||
| Grade | Highly Purified | ||
| Purity | 95+% HPLC, Mass Spec | ||
| Form | Supplied as a white to off-white lyophilized powder. | ||
| Reactivity life | 12 months | ||
| Note | For reserch purpose only | ||
| Purity | 95+% HPLC, Mass Spec | ||
| Description | Neuromedin U (or NmU) is a neuropeptide found in the brain of humans and other mammals, which has a number of diverse functions including contraction of smooth muscle, regulation of blood pressure, pain perception, appetite, bone growth, and hormone release. It was first isolated from the spinal cord in 1985, and named after its ability to cause smooth muscle contraction in the uterus. Neuromedin U is a highly conserved neuropetide present in many species, existing as multiple isoforms. For example, in humans it is a 25 amino acid peptide (U-25) in rats it is 23-aas long (U-23) and it has been found to be as low as 8-aas long in some mammals. NMU-8 is identical to the C terminus of NMU-25, thus is the most highly conserved region of the entire peptide. The relative contribution of the different isoforms to the biological function of neuromedin U is generally not well understood. Neuromedin U, like many neuroactive peptides, is amidated at the C-terminus, and all isoforms have identical C-terminal heptapeptides. The activation of NmU receptors leads to intracellular signal transduction via calcium mobilization, phosphoinositide (or PI) signaling, and the inhibition of cAMP production NmU will contract smooth muscle only in a tissue- and species-specific manner. Intracerebroventricular (or i.c.v) administration of the neuropeptide mediates stress response and increases both the arterial pressure and heart rate. i.c.v administration of NmU elevates the plamsa adrenaline levels, though has no effect on the amount of plasma noradrenaline. It has been suggested that large doses () of NmU inhibits the activity of the paraventricular nucleus of hypothalamus and/or the sympathetic preganglionic neurons, thus controlling the activity. Neuromedin U is mediated by two receptors, peripheral NmUR1 and central nervous system NmUR2. Both receptors are examples of Class A G-protein coupled receptors (or GPCRs) with a distinct sistributional pattern. NmUR1 is expressed predominantly in the peripheral nervous system, with highest levels in the gastrointestinal tract, whereas NmUR2 is mostly found in the central nervous system, with greatest expression in the hypothalamus, medulla, and spinal cord. The discovery of set distribution patterns has begun to allow assignation of specific roles of the two receptor subtypes within the body. What is known for certain is that recombinant NmU receptors will increase the internal calcium concentration, signaling via the MAPK/ERK pathway. Sequence (linear): Tyr-Phe-Leu-Phe-Arg-Pro-Arg-Asn-NH2 Storage and Stability: Lyophilized powder may be stored at 4°C for short-term only. Stable for 12 months at -20°C. Reconstitute to nominal volume (see reconstitution instructions for peptides) and store at -20°C. For maximum recovery of product, centrifuge the original vial prior to removing the cap. Further dilutions can be made in assay buffer. | ||
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