棕櫚?;揎棧?/span>palmitoylation或S-palmitoylation或S-acylation)根據(jù)其連接方式可以分為S-棕櫚?;?、N-棕櫚酰化和O-棕櫚?;F渲?,S-棕櫚酰化是指含有16個(gè)碳原子的飽和棕櫚酸和蛋白的半胱氨酸殘基的S端結(jié)合,形成不穩(wěn)定的硫酯鍵,這種棕櫚?;哂锌赡嫘裕稍跁r(shí)間和空間上調(diào)節(jié)蛋白質(zhì)的功能,因此棕櫚酰化修飾通常是指S-棕櫚?;?。棕櫚?;黾恿说鞍踪|(zhì)的疏水性,增強(qiáng)了蛋白與細(xì)胞膜的親和性,將胞漿蛋白瞬時(shí)靶向到細(xì)胞膜上,因而可用于研究蛋白質(zhì)的轉(zhuǎn)運(yùn)和定位。此外,棕櫚?;瘜⒌鞍踪|(zhì)束縛到膜微域中,例如脂筏,從而調(diào)節(jié)蛋白質(zhì)的活性、穩(wěn)定性和多蛋白質(zhì)復(fù)合物的形成。
技術(shù)路線(xiàn)
在所有脂質(zhì)化修飾中,棕櫚?;揎椬饔脴O為普遍,影響約20%的蛋白質(zhì)組。然而由于一般的棕櫚酰蛋白含量低,高特異性富集棕櫚酰蛋白困難以及完整的棕櫚酰肽的高疏水性等相關(guān)技術(shù)挑戰(zhàn),尚未進(jìn)行充分研究。
試劑選擇
炔基肉豆蔻酸(Alkynyl Palmitic Acid,貨號(hào):1165,品牌:ClickChemistryTools)可用于鑒定和表征翻譯后肉豆蔻蛋白 炔基棕櫚酸(15-十六炔酸或棕櫚酸(15-炔))是一種具有ω-末端炔烴的修飾棕櫚酸。炔基棕櫚酸通常用于使用強(qiáng)大的點(diǎn)擊化學(xué)來(lái)鑒定和表征蛋白質(zhì)的翻譯后 S-棕櫚?;?/span>
Alkynyl myristic acid is can be used to identify and characterize the post-translational myristylated proteins Alkynyl palmitic acid (15-hexadecynoic acid or Palmitic acid (15-yne)) is a modified palmitic acid with an ω-terminal alkyne. Alkynyl palmitic acid often used to identify and characterize the post-translational S-palmitoylation of proteins using the powerful click chemistry。
參考文獻(xiàn)
1. Gray, R. A. V., et al. (2021). Optimized Incorporation of Alkynyl Fatty Acid Analogs for the Detection of Fatty Acylated Proteins using Click Chemistry. JoVE Journal, 10 (3791), 62107.
2. Li, B., et al. (2020). TMEM132A, a Novel Wnt Signaling Pathway Regulator Through Wntless (WLS) Interaction. Front Cell Dev Biol., 8, 599890.
3. Lee, M.T., et al. (2020). Dietary sphinganine is selectively assimilated by members of themammaliangut microbiome. J Lipid Res .
4. White, F. K. H., et al. (2019). S-Palmitoylation of junctophilin-2 is critical for its role in tethering the sarcoplasmic reticulum to the plasma membrane. J Biol Chem., 294 (36), 13487-13501.
靶點(diǎn)科技是ClickChemistryTools在國(guó)內(nèi)的辦事處,也是授權(quán)總代理,點(diǎn)擊化學(xué)應(yīng)用于蛋白轉(zhuǎn)錄后修飾的試劑,常用的都是現(xiàn)貨。轉(zhuǎn)錄后試劑常見(jiàn)的有:
Alkynyl myristic acid,貨號(hào)是1165.
Alkynyl Myristic Acid,貨號(hào)是1164.
27-Alkyne Cholesterol,貨號(hào)是1410.
27-Alkyne Cholesterol,貨號(hào)是1409.
Alkynyl Stearic Acid,貨號(hào)是1166.
Alkyne Sphinganine,貨號(hào)是1452.
E-Cholesterol Alkyne,貨號(hào)是1411.
Azido Myristic Acid,貨號(hào)是1435.
Azido Palmitic Acid,貨號(hào)是1436.
使用者根據(jù)自己的需要,訂購(gòu)各種規(guī)格。最小規(guī)格是1mg和5mg。大規(guī)格可以定制。對(duì)于著急補(bǔ)實(shí)驗(yàn)的同學(xué),聯(lián)系國(guó)內(nèi)辦事處靶點(diǎn)科技,走特殊加急通道,最快一周。加急有加急費(fèi),還望理解。
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