Orexin A (human, rat, mouse)

发表于由

Orexin A (human, rat, mouse);

Orexin A human, rat, mouse 是一种 33 氨基酸兴奋性神经肽，参与多种中枢和外周过程。Orexin A human, rat, mouse 是一种特异性、高亲和力的 G 蛋白偶联受体 OX1R 激动剂，在调节摄食行为中起重要作用。Orexin A human, rat, mouse 是一种有效的抗伤害和抗痛觉过敏的药物。

Orexin A (human, rat, mouse) 

Orexin A (human, rat, mouse) Chemical Structure

CAS No. : 205640-90-0

规格 价格 是否有货
1 mg ￥4400 询问价格 & 货期
5 mg ￥18000 询问价格 & 货期

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Orexin A (human, rat, mouse) 的其他形式现货产品:

Orexin A (human, rat, mouse) (TFA)

生物活性

Orexin A human, rat, mouse, a 33 amino acid excitatory neuropeptide, orchestrates diverse central and peripheral processes. Orexin A human, rat, mouse is a specific, high-affinity agonist for G-protein-coupled receptor OX1R. Orexin A human, rat, mouse has a role in the regulation of feeding behavior. Orexin A human, rat, mouse is an effective anti-nociceptive and anti-hyperalgesic agent in mice and rats[1][2].

体外研究
(In Vitro)

Orexin A human, rat, mouse has high affinity for OX1R, with 38 nM IC50 and 34 nM EC50 values in the the [Ca2﹢]i transient assay[1].

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

Orexin A human, rat, mouse (3-30 mg/kg; i.v.; 5 min pre-test) significantly increases the latency to response at 10 and 30 mg/kg i.v. when given 5 min pre-test from 24.8±2.0 s in vehicle-treated mice to 35.0±3.7 s and 45.7±4.5 s, respectively[2].
Orexin A human, rat, mouse (3, 10 and 30 mg/kg; i.v.) was given immediately before phenylp-quinone (PPQ) and increases the latency to the first PPQ-induced constriction from 357.4±35.2 s in vehicle-treated mice to 500.3±31.2 s at 10 mg/kg and 594.5±5.5 s at 30 mg/kg[2].

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

Animal Model: Female mice (mouse carrageenan-induced thermal hyperalgesia test)[2]
Dosage: 3, 10 and 30 mg/kg
Administration: i.v.; 5 min pre-test
Result: Significantly increased the latency to response at 10 and 30 mg/kg.

分子量

3561.10

Formula

C152H243N47O44S4
CAS 号

205640-90-0
Sequence

{Glp}-Pro-Leu-Pro-Asp-Cys-Cys-Arg-Gln-Lys-Thr-Cys-Ser-Cys-Arg-Leu-Tyr-Glu-Leu-Leu-His-Gly-Ala-Gly-Asn-His-Ala-Ala-Gly-IIE-Leu-Thr-Leu-NH2 (Disulfide bridge: Cys6-Cys12, Cys7-Cys14)
Sequence Shortening

{Glp}-PLPDCCRQKTCSCRLYELLHGAGNHAAGILTL-NH2 (Disulfide bridge: Cys6-Cys12, Cys7-Cys14)
运输条件

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

Sealed storage, away from moisture

Powder -80°C 2 years
-20°C 1 year

*In solvent : -80°C, 6 months; -20°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 (<0) 1.;;Try to dissolve the peptide in water first.
2.;;If water fails, add NH4OH (<50 μL).
3.;;If the peptide still does not dissolve, add DMSO (50-100 μL) to solubilize the peptide.
Positive (>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]. Sakurai T, et al. Orexins and orexin receptors: a family of hypothalamic neuropeptides and G protein-coupled receptors that regulate feeding behavior. Cell. 1998 Feb 20;92(4):573-85.

    [2]. Bingham S, et al. Orexin-A, an hypothalamic peptide with analgesic properties. Pain. 2001 May;92(1-2):81-90.