RFRP 3 (human)

NPFF1 agonist; GnIH homolog CAS# 311309-27-0

RFRP 3 (human)

Catalog No. BCC6261----Order now to get a substantial discount!

Product Name & Size Price Stock
RFRP 3 (human):1mg $148.00 In stock
RFRP 3 (human):2mg $252.00 In stock
RFRP 3 (human):5mg $592.00 In stock
RFRP 3 (human):10mg $1036.00 In stock
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Chemical structure

RFRP 3 (human)

3D structure

Chemical Properties of RFRP 3 (human)

Cas No. 311309-27-0 SDF Download SDF
PubChem ID 71451611 Appearance Powder
Formula C45H72N14O10 M.Wt 969.15
Type of Compound N/A Storage Desiccate at -20°C
Synonyms Neuropeptide NPVF
Solubility Soluble to 2 mg/ml in 20% acetonitrile / water
Sequence VPNLPQRF

(Phe-8 = C-terminal amide)

Chemical Name (2S)-2-[[(2S)-1-[(2S)-2-[[(2S)-4-amino-2-[[(2S)-1-[(2S)-2-amino-3-methylbutanoyl]pyrrolidine-2-carbonyl]amino]-4-oxobutanoyl]amino]-4-methylpentanoyl]pyrrolidine-2-carbonyl]amino]-N-[(2S)-1-[[(2S)-1-amino-1-oxo-3-phenylpropan-2-yl]amino]-5-(diaminomethylideneamino)-1-oxopentan-2-yl]pentanediamide
SMILES CC(C)CC(C(=O)N1CCCC1C(=O)NC(CCC(=O)N)C(=O)NC(CCCN=C(N)N)C(=O)NC(CC2=CC=CC=C2)C(=O)N)NC(=O)C(CC(=O)N)NC(=O)C3CCCN3C(=O)C(C(C)C)N
Standard InChIKey JFZCLMZUABKABL-GVCDGELBSA-N
Standard InChI InChI=1S/C45H72N14O10/c1-24(2)21-31(57-40(65)30(23-35(47)61)56-42(67)33-15-10-20-59(33)44(69)36(48)25(3)4)43(68)58-19-9-14-32(58)41(66)54-28(16-17-34(46)60)39(64)53-27(13-8-18-52-45(50)51)38(63)55-29(37(49)62)22-26-11-6-5-7-12-26/h5-7,11-12,24-25,27-33,36H,8-10,13-23,48H2,1-4H3,(H2,46,60)(H2,47,61)(H2,49,62)(H,53,64)(H,54,66)(H,55,63)(H,56,67)(H,57,65)(H4,50,51,52)/t27-,28-,29-,30-,31-,32-,33-,36-/m0/s1
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Biological Activity of RFRP 3 (human)

DescriptionAgonist of the NPFF1 receptor (IC50 = 0.7 nM for inhibition of forskolin-induced cAMP production). Homolog of gonadotropin-inhibitory hormone (GnIH); inhibits activity of gonadotropin-releasing hormone (GnRH) neurons.

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References on RFRP 3 (human)

Identification of human GnIH homologs, RFRP-1 and RFRP-3, and the cognate receptor, GPR147 in the human hypothalamic pituitary axis.[Pubmed:20027225]

PLoS One. 2009 Dec 22;4(12):e8400.

The existence of a hypothalamic gonadotropin-inhibiting system has been elusive. A neuropeptide named gonadotropin-inhibitory hormone (GnIH, SIKPSAYLPLRF-NH(2)) which directly inhibits gonadotropin synthesis and release from the pituitary was recently identified in quail hypothalamus. Here we identify GnIH homologs in the human hypothalamus and characterize their distribution and biological activity. GnIH homologs were isolated from the human hypothalamus by immunoaffinity purification, and then identified as MPHSFANLPLRF-NH(2) (human RFRP-1) and VPNLPQRF-NH(2) (human RFRP-3) by mass spectrometry. Immunocytochemistry revealed GnIH-immunoreactive neuronal cell bodies in the dorsomedial region of the hypothalamus with axonal projections to GnRH neurons in the preoptic area as well as to the median eminence. RT-PCR and subsequent DNA sequencing of the PCR products identified human GnIH receptor (GPR147) mRNA expression in the hypothalamus as well as in the pituitary. In situ hybridization further identified the expression of GPR147 mRNA in luteinizing hormone producing cells (gonadotropes). Human RFRP-3 has recently been shown to be a potent inhibitor of gonadotropin secretion in cultured sheep pituitary cells by inhibiting Ca(2+) mobilization. It also directly modulates GnRH neuron firing. The identification of two forms of GnIH (RFRP-1 and RFRP-3) in the human hypothalamus which targets human GnRH neurons and gonadotropes and potently inhibit gonadotropin in sheep models provides a new paradigm for the regulation of hypothalamic-pituitary-gonadal axis in man and a novel means for manipulating reproductive functions.

RFamide-related peptide-3 receptor gene expression in GnRH and kisspeptin neurons and GnRH-dependent mechanism of action.[Pubmed:22691552]

Endocrinology. 2012 Aug;153(8):3770-9.

RFamide-related peptide-3 (RFRP-3) is known to inhibit the activity of GnRH neurons. It is not yet clear whether its G protein-coupled receptors, GPR147 and GPR74, are present on GnRH neurons or on afferent inputs of the GnRH neuronal network or whether RFRP-3 can inhibit gonadotropin secretion independently of GnRH. We tested the following: 1) whether GnRH is essential for the effects of RFRP-3 on LH secretion; 2) whether RFRP-3 neurons project to GnRH and rostral periventricular kisspeptin neurons in mice, and 3) whether Gpr147 and Gpr74 are expressed by these neurons. Intravenous treatment with the GPR147 antagonist RF9 increased plasma LH concentration in castrated male rats but was unable to do so in the presence of the GnRH antagonist cetrorelix. Dual-label immunohistochemistry revealed that approximately 26% of GnRH neurons from male and diestrous female mice were apposed by RFRP-3 fibers, and 19% of kisspeptin neurons from proestrous female mice were apposed by RFRP-3 fibers. Using immunomagnetic purification of GnRH and kisspeptin cells, single-cell nested RT-PCR, and in situ hybridization, we showed that 33% of GnRH neurons and 9-16% of rostral periventricular kisspeptin neurons expressed Gpr147, whereas Gpr74 was not expressed in either population. These data reveal that RFRP-3 can act at two levels of the GnRH neuronal network (i.e. the GnRH neurons and the rostral periventricular kisspeptin neurons) to modulate reproduction but is unable to inhibit gonadotropin secretion independently of GnRH.

New neuropeptides containing carboxy-terminal RFamide and their receptor in mammals.[Pubmed:11025660]

Nat Cell Biol. 2000 Oct;2(10):703-8.

Only a few RFamide peptides have been identified in mammals, although they have been abundantly found in invertebrates. Here we report the identification of a human gene that encodes at least three RFamide-related peptides, hRFRP-1-3. Cells transfected with a seven-transmembrane-domain receptor, OT7T022, specifically respond to synthetic hRFRP-1 and hRFRP-3 but not to hRFRP-2. RFRP and OT7T022 mRNAs are expressed in particular regions of the rat hypothalamus, and intracerebroventricular administration of hRFRP-1 increases prolactin secretion in rats. Our results indicate that a variety of RFamide-related peptides may exist and function in mammals.

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