推荐产品
等级
primary reference standard
产品线
phyproof® Reference Substance
检测方案
≥98.0% (HPLC)
制造商/商品名称
PhytoLab
应用
food and beverages
格式
neat
储存温度
2-8°C
SMILES字符串
O=C1OCC2=C1CC[C@]3(C)[C@]4(O5)[C@@H]5[C@H]6[C@@](O6)(C(C)C)[C@@H](O)[C@]4(O7)[C@@H]7C[C@]32[H]
InChI
1S/C20H24O6/c1-8(2)18-13(25-18)14-20(26-14)17(3)5-4-9-10(7-23-15(9)21)11(17)6-12-19(20,24-12)16(18)22/h8,11-14,16,22H,4-7H2,1-3H3/t11?,12-,13-,14-,16+,17-,18-,19+,20+/m0/s1
InChI key
DFBIRQPKNDILPW-KTGKZQHOSA-N
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一般描述
This substance is a primary reference substance with assigned absolute purity (considering chromatographic purity, water, residual solvents, inorganic impurities). The exact value can be found on the certificate. Produced by PhytoLab GmbH & Co. KG
生化/生理作用
雷公藤内酯是一种二萜三环氧化物，是中草药雷公藤（Tripterygium wilfordii） （TwHF）提取物中的主要活性成分 。它是一种有效的免疫抑制剂和抗炎药。雷公藤内酯已被证明在嘌呤盒/核因子和NF-κB介导的转录激活水平上抑制活化T细胞中IL-2的表达。它与环孢菌素A协同可促进动物模型中的移植物的存活，和抑制同种异体骨髓移植中的移植物抗宿主病。此外，它可诱导肿瘤细胞凋亡，并可部分通过抑制c-IAP2和c-IAP1，来增强肿瘤坏死因子（TNFα）诱导的细胞凋亡。
法律信息
phyproof is a registered trademark of PhytoLab GmbH & Co. KG
警示用语：
Danger
危险分类
Acute Tox. 1 Inhalation - Acute Tox. 1 Oral - Repr. 2
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
Yicheng Long et al.
Nature genetics, 52(9), 931-938 (2020-07-08)
Many chromatin-binding proteins and protein complexes that regulate transcription also bind RNA. One of these, Polycomb repressive complex 2 (PRC2), deposits the H3K27me3 mark of facultative heterochromatin and is required for stem cell differentiation. PRC2 binds RNAs broadly in vivo
Tsung-Han S Hsieh et al.
Molecular cell, 78(3), 539-553 (2020-03-28)
Whereas folding of genomes at the large scale of epigenomic compartments and topologically associating domains (TADs) is now relatively well understood, how chromatin is folded at finer scales remains largely unexplored in mammals. Here, we overcome some limitations of conventional
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