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Neuropeptide SF (mouse, rat)

* Please kindly note that our products are not to be used for therapeutic purposes and cannot be sold to patients.

Neuropeptide SF (mouse, rat) is a neuropeptide FF receptor agonist (Ki= 48.4 and 12.1 nM for NPFF1 and NPFF2, respectively). NPSF may play a physiologic role in the regulation of such circadian functions as the activity of motor centers and the HPA axis, through the release of CRH.

Category

Peptide Inhibitors

Catalog number

BAT-016340

CAS number

230960-31-3

Molecular Formula

C40H65N13O10

Molecular Weight

888.03

Specification
Reference Reading

IUPAC Name

(2S)-2-[[(2S)-1-[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-amino-3-hydroxypropanoyl]amino]-4-methylpentanoyl]amino]propanoyl]amino]propanoyl]pyrrolidine-2-carbonyl]amino]-N-[(2S)-1-[[(2S)-1-amino-1-oxo-3-phenylpropan-2-yl]amino]-5-(diaminomethylideneamino)-1-oxopentan-2-yl]pentanediamide

Synonyms

Ser-Leu-Ala-Ala-Pro-Gln-Arg-Phe-NH2

Appearance

White lyophilised solid

Sequence

SLAAPQRF
(Modifications: Phe-8 = C-terminal amide)

Storage

Store in a cool and dry place (or refer to the Certificate of Analysis).

Solubility

Soluble to 1 mg/ml in 20% acetonitrile / water

InChI

InChI=1S/C40H65N13O10/c1-21(2)18-29(52-34(58)25(41)20-54)37(61)47-22(3)33(57)48-23(4)39(63)53-17-9-13-30(53)38(62)50-27(14-15-31(42)55)36(60)49-26(12-8-16-46-40(44)45)35(59)51-28(32(43)56)19-24-10-6-5-7-11-24/h5-7,10-11,21-23,25-30,54H,8-9,12-20,41H2,1-4H3,(H2,42,55)(H2,43,56)(H,47,61)(H,48,57)(H,49,60)(H,50,62)(H,51,59)(H,52,58)(H4,44,45,46)/t22-,23-,25-,26-,27-,28-,29-,30-/m0/s1

InChI Key

OLOSAWFREOVGQW-CJKZIAQFSA-N

Canonical SMILES

CC(C)CC(C(=O)NC(C)C(=O)NC(C)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(CO)N

1. NPFFR2 Activates the HPA Axis and Induces Anxiogenic Effects in Rodents

Wei-Chen Hong,Ting-Shiuan Yeh,Ting-Chun Chen,Ya-Tin Lin,Yu-Lian Yu,Jin-Chung Chen Int J Mol Sci . 2017 Aug 21;18(8):1810. doi: 10.3390/ijms18081810.

Neuropeptide FF (NPFF) belongs to the RFamide family and is known as a morphine-modulating peptide. NPFF regulates various hypothalamic functions through two receptors, NPFFR1 and NPFFR2. The hypothalamic-pituitary-adrenal (HPA) axis participates in physiological stress response by increasing circulating glucocorticoid levels and modulating emotional responses. Other RFamide peptides, including neuropeptide AF, neuropeptide SF and RFamide related peptide also target NPFFR1 or NPFFR2, and have been reported to activate the HPA axis and induce anxiety- or depression-like behaviors. However, little is known about the action of NPFF on HPA axis activity and anxiety-like behaviors, and the role of the individual receptors remains unclear. In this study, NPFFR2 agonists were used to examine the role of NPFFR2 in activating the HPA axis in rodents. Administration of NPFFR2 agonists, dNPA (intracerebroventricular, ICV) and AC-263093 (intraperitoneal, IP), time-dependently (in rats) and dose-dependently (in mice) increased serum corticosteroid levels and the effects were counteracted by the NPFF receptor antagonist, RF9 (ICV), as well as corticotropin-releasing factor (CRF) antagonist, α-helical CRF(9-41) (intravenous, IV). Treatment with NPFFR2 agonist (AC-263093, IP) increased c-Fos protein expression in the hypothalamic paraventricular nucleus and induced an anxiogenic effect, which was evaluated in mice using an elevated plus maze. These findings reveal, for the first time, that the direct action of hypothalamic NPFFR2 stimulates the HPA axis and triggers anxiety-like behaviors.