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一种可逆的竞争性蛋白酶抑制剂,已显示可抑制组织蛋白酶B,H,L和S,钙蛋白酶和胰蛋白酶。
编号:171007
CAS号:103476-89-7/24365-47-7/54577-99-0/ 55123-66-5
单字母:Ac-LLR-CHO
| 编号: | 171007 |
| 中文名称: | 亮肽素,亮抑酶肽 |
| 英文名: | Leupeptin, Leupeptins |
| CAS号: | 103476-89-7/24365-47-7/54577-99-0/ 55123-66-5 |
| 单字母: | Ac-LLR-CHO |
| 三字母: | Ac N端乙酰化封端,一种常见的修饰方式,常用于模拟蛋白质中的肽片段。 -LeuL-亮氨酸:leucine。系统命名为(2S)-氨基-4-甲基戊酸。是编码氨基酸。是哺乳动物的必需氨基酸。符号:L,Leu。 -LeuL-亮氨酸:leucine。系统命名为(2S)-氨基-4-甲基戊酸。是编码氨基酸。是哺乳动物的必需氨基酸。符号:L,Leu。 -ArgL-精氨酸:arginine。系统命名为(2S)-氨基-5-胍基戊酸。在生理条件下带正电荷,为编码氨基酸。是幼小哺乳动物的必需氨基酸。符号:R,Arg。 -CHOC端醛基化,醛基亦称甲酰基。 |
| 氨基酸个数: | 3 |
| 分子式: | C20H38O4N6 |
| 平均分子量: | 426.55 |
| 精确分子量: | 426.3 |
| 等电点(PI): | - |
| pH=7.0时的净电荷数: | 1 |
| 平均亲水性: | -0.2 |
| 疏水性值: | 1.03 |
| 消光系数: | - |
| 来源: | 人工化学合成,仅限科学研究使用,不得用于人体。 |
| 盐体系: | 可选TFA、HAc、HCl或其它 |
| 储存条件: | 负80℃至负20℃ |
| 标签: | 醛肽 三肽 |
A reversible compeptitive protease inhibitor, which was shown to inhibit cathepsins B, H, L, and S, calpain and trypsin. Ac-LLR-CHO inhibits the trypsin-like activity of the proteasome endopeptidase complex. CAS Number (hemisulfate): 103476-89-7.
Leupeptin is a protease inhibitor that inhibits the activity of proteases in cells. It has been shown to inhibit transcriptional regulation and apoptosis pathway, as well as possessing anti-inflammatory properties. Leupeptin has been shown to have inhibitory properties against a variety of proteases, including group P2 metalloproteases, cathepsin D, and proteinase 3. This drug has also been shown to prevent neuronal death in experimental models by inhibiting cell lysis. Leupeptin binds to the active site of the enzyme by forming hydrogen bonds with conserved amino acid residues and steric interactions with nearby amino acid residues. The redox potentials of leupeptin are not known, but it is assumed that they are low enough for its antioxidant properties to be effective.
Leupeptin is an ion channel blocker that belongs to the group of protease inhibitors. It blocks the passage of ions across cell membranes by binding to the active site of a variety of enzymes in the membrane. Leupeptin is used as a research tool for studying protein interactions, and can be used for antibody production. Leupeptin is also useful in cell biology studies, because it inhibits the activation of many proteins involved in signal transduction and cell division.
Leupeptin is a naturally occurring protease inhibitor that has been synthetically produced for use as an experimental tool. Leupeptin inhibits the activity of basic proteins and enzymes by binding to them at the active site, preventing their access to substrate. This inhibition can be reversed with reducing agents (e.g., dithiothreitol). Leupeptin has been shown to inhibit neuronal death during anoxia in experimental models and has also been shown to have neurotrophic effects, which may be due to its ability to prevent protein aggregation.
| DOI | 名称 | |
|---|---|---|
| 10.2174/092986706777935122 | Inhibitors of cathepsin B | 下载 |
| 10.1021/cb400137p | Pyrimidyn compounds: dual-action small molecule pyrimidine-based dynamin inhibitors | 下载 |
| 10.1111/tra.12272 | Phenothiazine-derived antipsychotic drugs inhibit dynamin and clathrin-mediated endocytosis | 下载 |
| 10.1039/c5ob00751h | 1,8-Naphthalimide derivatives: new leads against dynamin I GTPase activity | 下载 |
| 10.7164/antibiotics.22.558 | Biological activities of leupeptins | 下载 |





