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Key Documents

N5017

Sigma-Aldrich

Neuropeptide Y human

≥95% (HPLC), powder, synthetic

Synonym(s):

NPY, hNPY

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About This Item

Empirical Formula (Hill Notation):
C189H285N55O57S
CAS Number:
Molecular Weight:
4271.68
MDL number:
UNSPSC Code:
12352200
NACRES:
NA.32

biological source

synthetic

Quality Level

Assay

≥95% (HPLC)

form

powder

color

white

solubility

H2O: 1 mg/mL

UniProt accession no.

storage temp.

−20°C

InChI

1S/C189H285N55O57S/c1-15-93(7)148(179(295)234-128(81-140(193)254)168(284)226-123(74-92(5)6)171(287)239-149(94(8)16-2)180(296)240-150(99(13)247)181(297)222-115(31-22-67-208-189(202)203)156(272)220-117(56-59-139(192)253)161(277)218-113(29-20-65-206-187(198)199)157(273)224-121(151(195)267)76-101-38-48-107(249)49-39-101)238-172(288)126(79-104-44-54-110(252)55-45-104)229-167(283)127(80-105-86-204-90-210-105)230-159(275)114(30-21-66-207-188(200)201)219-164(280)122(73-91(3)4)225-154(270)96(10)212-173(289)133(88-245)236-166(282)125(78-103-42-52-109(251)53-43-103)228-165(281)124(77-102-40-50-108(250)51-41-102)227-158(274)112(28-19-64-205-186(196)197)216-152(268)95(9)211-155(271)119(62-72-302-14)221-169(285)130(84-146(263)264)232-162(278)118(58-61-144(259)260)217-153(269)97(11)213-176(292)136-33-24-68-241(136)182(298)98(12)214-163(279)129(83-145(261)262)231-160(276)116(57-60-143(257)258)215-142(256)87-209-175(291)135-32-23-70-243(135)185(301)132(82-141(194)255)235-170(286)131(85-147(265)266)233-177(293)138-35-26-71-244(138)184(300)120(27-17-18-63-190)223-174(290)134(89-246)237-178(294)137-34-25-69-242(137)183(299)111(191)75-100-36-46-106(248)47-37-100/h36-55,86,90-99,111-138,148-150,245-252H,15-35,56-85,87-89,190-191H2,1-14H3,(H2,192,253)(H2,193,254)(H2,194,255)(H2,195,267)(H,204,210)(H,209,291)(H,211,271)(H,212,289)(H,213,292)(H,214,279)(H,215,256)(H,216,268)(H,217,269)(H,218,277)(H,219,280)(H,220,272)(H,221,285)(H,222,297)(H,223,290)(H,224,273)(H,225,270)(H,226,284)(H,227,274)(H,228,281)(H,229,283)(H,230,275)(H,231,276)(H,232,278)(H,233,293)(H,234,295)(H,235,286)(H,236,282)(H,237,294)(H,238,288)(H,239,287)(H,240,296)(H,257,258)(H,259,260)(H,261,262)(H,263,264)(H,265,266)(H4,196,197,205)(H4,198,199,206)(H4,200,201,207)(H4,202,203,208)/t93-,94-,95-,96-,97-,98-,99+,111-,112-,113-,114-,115-,116-,117-,118-,119-,120-,121-,122-,123-,124-,125-,126-,127-,128-,129-,130-,131-,132-,133-,134-,135-,136-,137-,138-,148-,149-,150-/m0/s1

InChI key

XKWCTHKJQNUFOQ-HRPSIEBRSA-N

Gene Information

human ... NPY(4852)

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Amino Acid Sequence

Tyr-Pro-Ser-Lys-Pro-Asp-Asn-Pro-Gly-Glu-Asp-Ala-Pro-Ala-Glu-Asp-Met-Ala-Arg-Tyr-Tyr-Ser-Ala-Leu-Arg-His-Tyr-Ile-Asn-Leu-Ile-Thr-Arg-Gln-Arg-Tyr-NH2

General description

Neuropeptide Y is a regulatory molecule encoded by a gene mapped to human chromosome 7p15. Neuropeptide Y is a 36 amino acid protein with C-terminal α-amide structure. It is ubiquitously distributed in heart and brain, but at high levels in paraventricular hypothalamic nucleus, hypothalamic arcuate nucleus, suprachiasmatic nucleus, median eminence, dorsomedial, hypothalamic nucleus, paraventricular thalamic nuclei. NPY is a member of antimicrobial peptide family, which also include dermaseptins, cecropins or magainins.

Application

Neuropeptide Y (NPY) human has been used:
  • to study the effect of antiepileptic effects on pentylenetetrazole (PTZ) rats.
  • as a standard in high-performance liquid chromatography (HPLC) standard and control to verify specificity of the antibodies.
  • to study the effect of NPY on motor and electroencephalographic (EEG) seizures induced by kainic acid.

Biochem/physiol Actions

Neuropeptide Y (NPY) plays a vital role in various processes including feeding behaviour, anxiety, epilepsy, circadian, as well as rhythm memory processing, sleep, pain and drug addiction. In addition, it is also implicated in regulation of appetite, body weight and obesity. It controls central endocrine secretion and has potent vasoactive effects on the cardiovascular system. NPY is involved in the pathogenesis of atherosclerosis and coronary artery disease. NPY exhibits antimicrobial activity against Cryptococcus neoformans, Candida albicans and Arthroderma simii.
Vasoconstrictor; brain peptide that inhibits Ca2+-activated K+ channels in vascular smooth muscle. Implicated in the control of blood pressure, sexual behavior and food intake. Inhibits cholecystokinin- and secretin-stimulated pancreatic secretion.

Other Notes

Lyophilized from 0.1% TFA in H2O

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Enhancement of antimicrobial activity of neuropeptide Y by N-terminal truncation.
Shimizu M
Antimicrobial Agents and Chemotherapy, 42(10), 2745-2746 (1998)
Powerful inhibition of kainic acid seizures by neuropeptide Y via Y5-like receptors.
Woldbye DP
Nature Medicine, 3(7), 761-764 (1997)
Antiepileptic effects of NPY on pentylenetetrazole seizures.
Woldbye DP
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Wufei Dai et al.
Scientific reports, 9(1), 9500-9500 (2019-07-03)
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