(Arg)9 TFA(Synonyms: Nona-L-arginine TFA Peptide R9 TFA)

发表于由

(Arg)9 TFA;(Synonyms: Nona-L-arginine TFA; Peptide R9 TFA) 纯度: 96.80%

(Arg)9 TFA (Nona-L-arginine TFA)是可渗透细胞的多肽，在谷氨酸模型实验模型中保护神经的IC50值为0.78 μM。

(Arg)9 TFAamp;;(Synonyms: Nona-L-arginine TFA; Peptide R9 TFA)

(Arg)9 TFA Chemical Structure

CAS No. : 2283335-13-5

规格 价格 是否有货 数量
1 mg ￥1300 In-stock
5 mg ￥4900 In-stock
10 mg ; 询价 ;
50 mg ; 询价 ;

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(Arg)9 TFA 相关产品

bull;相关化合物库:

  • Drug Repurposing Compound Library Plus
  • Clinical Compound Library Plus
  • Bioactive Compound Library Plus
  • Peptide Library

生物活性

(Arg)9 TFA (Nona-L-arginine TFA), a cell-penetrating peptide, exhibits neuroprotective activity with an IC50 of 0.78 μM in the glutamic acid model.

IC50 Target

IC50: 0.78 μM (neuroprotection)[1].
体外研究
(In Vitro)

Poly-arginine (e.g. (Arg)9) and arginine-rich peptides (e.g. TAT, penetratin), which belong to a class of peptides with cell-penetrating properties are neuroprotective. (Arg)9 provides significant neuroprotection in a dose–response manner following glutamic acid exposure (IC50=0.78 μM). Following kainic acid exposure, (Arg)9 is neuroprotective, but less effective than in the glutamic acid model (IC50=0.81 μM). (Arg)9 also shows neuroprotection following in vitro ischemia (IC50=6 μM)[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
体内研究
(In Vivo)

(Arg)9) (D-isoform) is neuroprotective in rat stroke models. (Arg)9) is highly neuroprotective, with efficacy increasing with increasing arginine content, has the capacity to reduce glutamic acid-induced neuronal calcium influx and requires heparan sulfate preotoglycan-mediated endocytosis to induce a neuroprotective effect[2]. (Arg)9) (D-isoform) administered intravenously at a dose of 1000 nmol/kg 30 min after permanent middle cerebral artery occlusion (MCAO) reduces infarct volume[3].

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

分子量

1537.71

Formula

C56H111N36F3O12
CAS 号

2283335-13-5
Sequence

Arg-Arg-Arg-Arg-Arg-Arg-Arg-Arg-Arg
Sequence Shortening

RRRRRRRRR
运输条件

Room temperature in continental US; may vary elsewhere.
储存方式

Sealed storage, away from moisture

Powder -80deg;C 2 years
-20deg;C 1 year

*In solvent : -80deg;C, 6 months; -20deg;C, 1 month (sealed storage, away from moisture)
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]. Meloni BP, et al. The neuroprotective efficacy of cell-penetrating peptides TAT, penetratin, Arg-9, and Pep-1 in glutamic acid, kainic acid, and in vitro ischemia injury models using primary cortical neuronal cultures. Cell Mol Neurobiol. 2014 Mar;34(2):173-81.

    [2]. Meloni BP, et al. Poly-arginine and arginine-rich peptides are neuroprotective in stroke models. J Cereb Blood Flow Metab. 2015 Jun;35(6):993-1004.

    [3]. Milani D, et al. Poly-arginine peptides reduce infarct volume in a permanent middle cerebral artery rat strokemodel. BMC Neurosci. 2016 May 3;17(1):19.