PR-39 - 半岛电竞官方网址

立即咨询

咨询类型：

采购售后

*姓名：

*电话：

*单位：

Email：

*留言内容：

请详细说明您的需求。

*验证码：

PR-39

本半岛bd体育手机客户端不向个人销售，仅用作科学研究，不用于任何人体实验及非科研性质的动物实验。

CAS NO:

139637-11-9

包装与价格：

包装	价格(元)
100mg	电议
250mg	电议
500mg	电议

半岛bd体育手机客户端介绍

PR-39 是富含脯氨酸和精氨酸的天然抗菌肽，是一种非竞争性，可逆和变构的蛋白酶体 ( proteasome) 抑制剂。PR-39 可逆地结合到蛋白酶体的 α7 亚基上，并通过泛素-蛋白酶体途径阻断 NF-κB 抑制剂 IκBα 的降解。PR-39 刺激小鼠的血管生成，抑制炎症反应并显着减小心肌梗死面积。

生物活性

PR-39, a natural proline- and arginine-rich antibacterial peptide, is a noncompetitive, reversible and allostericproteasomeinhibitor. PR-39 reversibly binds to the α7 subunit of theproteasomeand blocks degradation ofNF-κB inhibitorIκBα by the ubiquitin-proteasome pathway. PR-39 stimulates angiogenesis, inhibits inflammatory responses and significant reduces myocardial infarct size in mice^[1]^[2].

体外研究
(In Vitro)

PR-39, shown to selectively affect proteasomemediated protein degradation in vivo, alters the shape of the 20S and 26S cylinder and affects the binding of 19S caps in a reversible manner. PR-39 specifically blocks degradation of IκBα and HIF-1α by the proteasome^[1].
PR-39 (100 nM) blocks TNF-α-induced (1 ng/mL; for 20 minutes) activation of VCAM-1 (2 hours) and ICAM-1 (8 hours) expression in human umbilical vein endothelial cells (HUVEC)^[2].
PR-39 (10 μM) does not affect the ability to proliferate of ECV304 cell. PR39 is able to inhibit IκBα degradation without significantly affecting overall protein degradation in cells^[2].

体内研究
(In Vivo)

PR-39 (10 mg/kg, intravenously; 1 hour before Caerulein of 50μg/kg, ip) blocks IκBα degradation and NF-κB-dependent transcription in the mouse pancreas after induction of acute pancreatitis^[2].
PR-39 (1 μg/kg/day; 7-day intraperitoneal infusion) demonstrates significantly small infarct in C57BL/6 mice^[2].

分子量

4719.74

Formula

C₂₂₉H₃₄₆N₇₀O₄₀

CAS 号

139637-11-9

Sequence Shortening

RRRPRPPYLPRPRPPPFFPPRLPPRIPPGFPPRFPPRFP-NH2

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

Please store the product under the recommended conditions in the Certificate of Analysis.

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.