目录号 | MZ5810-1000UG | 售价 | 2968.00元 | ||||||||||||||||||||||||||||||||||||||||||
规格 | 1mg | 运输温度 | 室温 | ||||||||||||||||||||||||||||||||||||||||||
其他名称 | LAT-B; NSC 339663; | 保存温度 | -20ºC避光保存 | ||||||||||||||||||||||||||||||||||||||||||
CAS号 | 76343-94-7 | 有效期 | 1年 | ||||||||||||||||||||||||||||||||||||||||||
应用 | 肌动蛋白聚合抑制剂 | 订购数量 |
|
||||||||||||||||||||||||||||||||||||||||||
产品简介: Latrunculin B (Powder) 红海海绵素B
产品标签 Actin disruption 肌动蛋白破坏;Latrunculin A(LAT-A);F-actin 肌动蛋白丝(微丝);Actin polymerization inhibitor 肌动蛋白聚合抑制剂;CAS NO:76343-94-7;
产品信息
产品描述: 肌动蛋白破坏(Actin disruption)可用来研究细胞功能,体外如迁移和内吞,体内如肿瘤细胞迁移。
红海海绵素B(Latrunculin B,LAT-B),CAS NO.76343-94-7,是一种分离自红海海绵Latrunculia magnifica,具有生物活性的2-噻唑烷酮大环内酯天然产物,引起细胞形状和肌动蛋白组织发生浓度依赖性的变化。LAT-B能隔离单体肌动蛋白(G-actin)和防止肌动蛋白丝(F-actin)组装。按照1:1化学计量结合单体肌动蛋白,体外和细胞内(Kd=60nM)都可用来阻断肌动蛋白聚合。虽然LAT-B的活性稍微弱于LAT-A,但其短期效应与LAT-B相当。在一直含LAT-B的培养基内血清的存在逐渐引起LAT-B失活,以致于诱导的变化是瞬时的。正因如此,与LAT-A相比,LAT-B可能产生更少不想要的生理效应,使其更适合短期研究。
我司提供两种形式的LAT-B,一种以DMSO储存液形式提供,货号MZ5810-100UG。一种以冻干粉形式提供,对应货号为MZ5810-1000UG。
产品特性 1)化学名:4R-[(1R,4Z,8Z,10S,13R,15R)-15-hydroxy-5,10-dimethyl-3-oxo-2,14-dioxabicyclo[11.3.1]heptadeca -4,8-dien-15-yl]-2-thiazolidinone 2)同义名:LAT-B; NSC 339663; 3)CAS NO:76343-94-7 4)分子式:C20H29NO5S 5)分子量:395.5 6)纯度:≥97% 7)化学结构图:
保存与运输方法 保存:-20ºC避光保存,其中DMSO储存液1年有效,冻干粉2年有效。 运输:冰袋运输。
使用方法
1) 对于冻干粉(货号:MZ5810-1000UG),于室温回温至少20min,低速离心后,加入乙醇或DMSO配置所需浓度的储存液。两者的溶解性达50mM。 2) 对于DMSO储存液(货号:MZ5810-100UG),浓度为10mM。使用前请室温回温至少20min,低速离心,再进行后续操作。由于本身液体量比较少,保存过程中盖子要密封。也可以根据实际需要工作浓度,将本储存液用DMSO稀释到一个中间浓度,比如2mM。然后再进行后续操作。 3) 于实验前,将适量储存液用生理缓冲液,培养基或生理盐水稀释到所需的工作浓度。具体的工作浓度请根据实验要求参考文献来摸索。【注意】:工作液必须现配现用。
注意事项 1)红海海绵素B(LAT-B)据报道对光敏感,建议避光保存,且保持干燥。 2)为了您的安全和健康,请穿实验服并戴一次性手套操作。
相关产品
— —Written/Edited by V. Shallan【版权归MKBio懋康所有】
上海懋康生物科技有限公司是一家涉足于生命科学和生物技术领域研究的试剂、仪器和实验室消耗品与实验服务工作,主要从事细胞生物学、植物学、分子生物学、免疫学、生物化学、蛋白组学。生物制药与诊断试剂研发生产等领域。 本公司秉承“以人为本,以诚为信、合同守信”的经营理念。坚持"品质保障"的原则为广大客户提供优质产品。
引用文献: [1] Song, Z., Han, A. & Hu, B. Thymosin β4 promotes zebrafish Mauthner axon regeneration by facilitating actin polymerization through binding to G-actin. BMC Biol 22, 244 (2024). https://doi.org/10.1186/s12915-024-02045-2 Pharmacological treatment For continuous immersion treatment, zebrafish larvae at 6 dpf with single axon injury were exposed to 10, 20, or 50 μM latrunculin B (76343–94-7, Maokang, China) for 48 h until imaging for axon regeneration. The immersion medium was replaced every 24 h to maintain the effectiveness of the drug. The control group was treated with an equivalent concentration of DMSO (D12345, Thermo Fisher, USA).
Hello,
Our lab dissolved one vial of BODIPY™ 558/568 C12 (D3835 Lot:2581655) with 529.2ul fresh DMSO (MP biomedical, 196055, 100ml) to prepare 4mM stock solution, and aliquoted into 10-20ul EP tubes, and stored at -20℃ in aluminum foil bag this March. It worked well for trafficking fatty acid for original two-cycles experiment.
However, when we restarted the experiment this November, we found the color of some aliquots turned into purple-red not the original pink (see below Fig-1). We choose one aliquot with normal pink color to perform same experiment (same cells and experiment condition), we cannot find fatty acid transfer signal. (see below Fig-2).
Fig-1 Color of stock solution, left (blue arrow)-Color turned into purple-red; right (red arrow)-color looked similar to first use.
Fig-2 Upper row was the staining pattern taken on March. Lower row was one taken on November. Do you think the bad results caused by loss activity of stock solutions?
|