NH2-PEG9-acid 是一种不可降解 (non-cleavable) 的含 9 个单元 PEG 的 ADC 连接子,可用于合成抗体偶联药物 (ADC)。它也是一种 PROTAC 连接子,属于 PEG 类,适用于合成 PROTAC 分子。
靶点特性 | 说明 |
---|---|
不可降解 | |
PEGs |
ADCs 是由抗体组成的,通过 ADC 连接子连接有细胞毒性药物。PROTACs 包含两种不同的配体,它们通过一个连接子相连;一种是与 E3 泛素连接酶的配体,另一种是目标蛋白的配体。PROTACs 通过利用细胞内的泛素-蛋白酶体系统来选择性地降解目标蛋白质。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
27-氨基-4,7,10,13,16,19,22,25-八氧杂二十七烷酸叔丁酯 | tert-butyl 1-amino-3,6,9,12,15,18,21,24-octaoxaheptacosan-27-oate | 756526-06-4 | C23H47NO10 | 497.627 |
羟基-PEG8-叔丁酯 | tert-butyl 1-hydroxy-3,6,9,12,15,18,21,24-octaoxaheptacosan-27-oate | 1334177-84-2 | C23H46O11 | 498.612 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 1-bromo-2-oxo-6,9,12,15-octaoxa-3-azatriacontan-30-oic acid | —— | C21H40BrNO11 | 562.453 |
—— | 3-{2-[2-(2-{2-[2-(2-{2-[2-(2-bromo-acetylamino)-ethoxy]-ethoxy}-ethoxy)-ethoxy]-ethoxy}-ethoxy)-ethoxy]-ethoxy}-propionic acid methyl ester | 1283659-02-8 | C22H42BrNO11 | 576.48 |
—— | 3-[2-(2-{2-[2-(2-bromo-acetylamino)-ethoxy]-ethoxy}-ethoxy)-ethoxy]-propionic acid methyl ester | 1283658-88-7 | C14H26BrNO7 | 400.267 |
Modified 2′-deoxyribonucleotide triphosphates (dNTPs) have widespread applications in both existing and emerging biomolecular technologies. For such applications it is an essential requirement that the modified dNTPs be substrates for DNA polymerases. To date very few examples of C5-modified dNTPs bearing negatively charged functionality have been described, despite the fact that such nucleotides might potentially be valuable in diagnostic applications using Si-nanowire-based detection systems. Herein we have synthesised C5-modified dUTP and dCTP nucleotides each of which are labelled with an dianionic reporter group. The reporter group is tethered to the nucleobase via a polyethylene glycol (PEG)-based linkers of varying length. The substrate properties of these modified dNTPs with a variety of DNA polymerases have been investigated to study the effects of varying the length and mode of attachment of the PEG linker to the nucleobase. In general, nucleotides containing the PEG linker tethered to the nucleobase via an amide rather than an ether linkage proved to be the best substrates, whilst nucleotides containing PEG linkers from PEG6 to PEG24 could all be incorporated by one or more DNA polymerase. The polymerases most able to incorporate these modified nucleotides included Klentaq, Vent(exo-) and therminator, with incorporation by Klenow(exo-) generally being very poor.