Neurokinin A(Synonyms: Substance K Neurokinin α Neuromedin L)

发表于由

Neurokinin A;(Synonyms: Substance K; Neurokinin α; Neuromedin L)

Neurokinin A (Substance K) 是速激肽家族的一种肽类神经递质，通过 NK-2 受体发挥作用。在人气道和胃肠道组织中作为主要的介体。

Neurokinin Aamp;;(Synonyms: Substance K; Neurokinin α; Neuromedin L)

Neurokinin A Chemical Structure

CAS No. : 86933-74-6

规格 价格 是否有货 数量
25 mg 询价
1 mg ￥1000 询价
5 mg ￥4000 询价
10 mg ￥7200 询价
50 mg ; 询价 ;
100 mg ; 询价 ;

* Please select Quantity before adding items.

生物活性

Neurokinin A (Substance K), a peptide neurotransmitter of the tachykinin family, acts via the NK-2 receptor. Neurokinin A acts as a major mediator in human airway and gastrointestinal tissues[1].

IC50 Target

NK-2 receptor[1]
体外研究
(In Vitro)

Neurokinin A (substance K) is a peptide neurotransmitter of the tachykinin family with potential as a major mediator in human airway and gastrointestinal tissues. Neurokinin A acts via the NK-2 receptor believed to be localized on smooth muscle cells and pharmacologically coupled to a GTP-binding protein. Neurokinin A is a member of a family of peptide neurotransmitters known as tachykinins. These peptides are associated with the central and peripheral nervous systems and display a wide tissue distribution. Tachykinins share the COOH-terminal structure Phe-X-Gly-Leu-Met-NH. The best known members of this family are Substance P and Neurokinin A or Substance K[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
分子量

1133.32

Formula

C50H80N14O14S
CAS 号

86933-74-6
Sequence

His-Lys-Thr-Asp-Ser-Phe-Val-Gly-Leu-Met-NH2
Sequence Shortening

HKTDSFVGLM-NH2
中文名称

神经激肽 A
运输条件

Room temperature in continental US; may vary elsewhere.
储存方式
Powder -80deg;C 2 years
-20deg;C 1 year
In solvent -80deg;C 6 months
-20deg;C 1 month
Solvent Solubility
In Vitro:;

H2O

Peptide Solubility and Storage Guidelines:

1.;;Calculate the length of the peptide.

2.;;Calculate the overall charge of the entire peptide according to the following table:

; Contents Assign value
Acidic amino acid Asp (D), Glu (E), and the C-terminal -COOH. -1
Basic amino acid Arg (R), Lys (K), His (H), and the N-terminal -NH2 +1
Neutral amino acid Gly (G), Ala (A), Leu (L), Ile (I), Val (V), Cys (C), Met (M), Thr (T), Ser (S), Phe (F), Tyr (Y), Trp (W), Pro (P), Asn (N), Gln (Q) 0

3.;;Recommended solution:

Overall charge of peptide Details
Negative (lt;0) 1.;;Try to dissolve the peptide in water first.
2.;;If water fails, add NH4OH (lt;50 μL).
3.;;If the peptide still does not dissolve, add DMSO (50-100 μL) to solubilize the peptide.
Positive (gt;0) 1.;;Try to dissolve the peptide in water first.
2.;;If water fails, try dissolving the peptide in a 10%-30% acetic acid solution.
3.;;If the peptide still does not dissolve, try dissolving the peptide in a small amount of DMSO.
Zero (=0) 1.;;Try to dissolve the peptide in organic solvent (acetonitrile, methanol, etc.) first.
2.;;For very hydrophobic peptides, try dissolving the peptide in a small amount of DMSO, and then dilute the solution with water to the desired concentration.
参考文献

  • [1]. Gerard NP, et al. The human neurokinin A (substance K) receptor. Molecular cloning of the gene, chromosome localization, and isolation of cDNA from tracheal and gastric tissues. J Biol Chem. 1990 Nov 25;265(33):20455-62.