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N4143

Sigma-Aldrich

Neurokinin B

≥95% (HPLC)

Synonym(s):

β-Neurokinin, Neuromedin K

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About This Item

Empirical Formula (Hill Notation):
C55H79N13O14S2
CAS Number:
86933-75-7
Molecular Weight:
1210.42
MDL number:
MFCD00133665
UNSPSC Code:
51111800
PubChem Substance ID:
24897694
NACRES:
NA.32

Quality Level

200

Assay

≥95% (HPLC)

form

powder

UniProt accession no.

Q9UHF0

storage temp.

−20°C

SMILES string

CSCCC(NC(=O)C(CC(C)C)NC(=O)CNC(=O)C(NC(=O)C(Cc1ccccc1)NC(=O)C(Cc2ccccc2)NC(=O)C(CC(O)=O)NC(=O)C(Cc3cnc[nH]3)NC(=O)C(CCSC)NC(=O)C(N)CC(O)=O)C(C)C)C(N)=O

InChI

1S/C55H79N13O14S2/c1-30(2)21-38(50(77)62-36(47(57)74)17-19-83-5)61-43(69)28-59-55(82)46(31(3)4)68-54(81)40(23-33-15-11-8-12-16-33)65-51(78)39(22-32-13-9-7-10-14-32)64-53(80)42(26-45(72)73)67-52(79)41(24-34-27-58-29-60-34)66-49(76)37(18-20-84-6)63-48(75)35(56)25-44(70)71/h7-16,27,29-31,35-42,46H,17-26,28,56H2,1-6H3,(H2,57,74)(H,58,60)(H,59,82)(H,61,69)(H,62,77)(H,63,75)(H,64,80)(H,65,78)(H,66,76)(H,67,79)(H,68,81)(H,70,71)(H,72,73)

InChI key

NHXYSAFTNPANFK-UHFFFAOYSA-N

Gene Information

human ... TAC3(6866)

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Amino Acid Sequence

Asp-Met-His-Asp-Phe-Phe-Val-Gly-Leu-Met-NH2

Biochem/physiol Actions

Neurokinin B is a ten-residue peptide. It is an endogenous tachykinin agonist with preference for the NK-3 receptor. It is a potent bronchoconstrictor and may have a neuromodulatory role in the brain. Neurokinin B has a role in slow synaptic or non-synaptic communication.

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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Neurokinin B Acts via the Neurokinin-3 Receptor in the Retrochiasmatic Area to Stimulate Luteinizing Hormone Secretion in Sheep
Endocrinology (2010)
The Tachykinin Peptide Neurokinin B Binds Copper Forming an Unusual [CuII(NKB)2] Complex and Inhibits Copper Uptake into 1321N1 Astrocytoma Cells
ACS Chemical Neuroscience (2013)
Neurokinin B and the hypothalamic regulation of reproduction.
Rance NE
Brain Research (2010)
Michael N Lehman et al.
Endocrinology, 151(8), 3479-3489 (2010-05-27)
Recently, a subset of neurons was identified in the arcuate nucleus of the hypothalamus that colocalize three neuropeptides, kisspeptin, neurokinin B, and dynorphin, each of which has been shown to play a critical role in the central control of reproduction.
F Ruiz-Pino et al.
Endocrinology, 153(10), 4818-4829 (2012-07-24)
Neurokinin B (NKB), encoded by Tac2 in rodents, and its receptor, NK3R, have recently emerged as important regulators of reproduction; NKB has been proposed to stimulate kisspeptin output onto GnRH neurons. Accordingly, NKB has been shown to induce gonadotropin release
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