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Chromomycin A3 色霉素A3 - 苏州蚂蚁淘生物科技有限公司
Chromomycin A3 色霉素A3;Hoechst 33342 细胞核探针; Chromosome-banding 染色体分带;Protamine deficiency 精蛋白缺乏;荧光DNA染料;CAS:7059-24-7 订购信息:【进口原料,现货供应,具体咨询】: 色霉素A3(ChromomycinA3,CMA3,CAS:7059-24-7),同义名Aburamycin b,由灰色链霉菌(Streptomyces griseus)代谢纯化所得的一种蒽醌抗生素,具有抗菌、抗真菌和抗肿瘤活性。常用作一种荧光DNA染料,非常适合用来筛查精子染色质存在的精蛋白缺乏(protaminedeficiency)。在二价金属离子存在的条件下,色霉素A3(CMA3)通过与DNA特异性结合与可逆作用来阻断大分子合成。另外,通过结合到DNA小沟,色霉素A3有效调控与DNA促旋酶的竞争性抑制,从而显著影响拓扑异构酶II活性。CMA3对非小细胞性肺癌和宫颈癌呈现体外细胞毒性,作用于HCC44,A549,ME180和 HeLa细胞的IC50s分别是1,42,60和40nM。CMA3还能通过改善Sp1和Sp3转录因子结合来抑制氧化应激和DNA损伤诱导的神经损伤。具体内活性。 产品特性1) CAS NO:7059-24-72)化学名:3B-O-(4-O-acetyl-2,6-didexy-3-C-methyl-α-L-arabino-hexopyranosyl)-7-methylolivomycin 3)同义名:Toyomycin, Aburamycin B, Antibiotic69895 A, Antibiotic B 599, NSC-585144) 分子式:C57H82O265) 分子量:1183.256) 纯度: 97%(HPLC)7) 外观:类白色至黄色粉末8) Ex/Em Max:445/575 nm9) 溶解性:溶于乙醇(~20mg/ml),DMSO(~20mg/ml),乙酸乙酯(10mg/ml) 6)化学结构:\"\" 保存与运输方法保存:+4℃干燥避光稳定保存至少一年,-20℃干燥避光稳定保存至少二年。运输:常温运输。 产品使用【来自文献,仅做参考】 文献1,Esterhuizen AD et al. Chromatin packaging as an indicator of human sperm dysfunction. J Assist Reprod Genet. 2000 Oct;17(9):508-14. PMID: 11155324 体外研究: 样本类型(Sample type):Semen Preparation 应用目的(Purpose):Using CMA3 staining to determine quality chromatin packaging 实验方法(Assay):CMA3 staining thin smears were prepared, air dried, andfixed in methanol/acetic acid 3:1 at room temperature for 20 min. The slides were air-dried and stained with 60–100µl CMA3 in a dark chamber for 20 min. Slides were then washed in McIlvaine buffer and mounted using Dabco. Two hundred spermatozoa were evaluated under a Nikonfluorescent microscope. 文献2,Iranpour FG et al. Chromomycin A3 staining as a useful tool for evaluation of male fertility. J Assist Reprod Genet. 2000 Jan;17(1):60-6. PMID: 10754785 体外研究: 样本类型(Sample type):Semen aliquots 应用目的(Purpose):Using CMA3 staining to assess the packaging quality of the chromatin in sperm 实验方法(Assay):The spermatozoa were washed again, fixed in methanol/glacial acetic acid (3:1) at 4℃ for 5 min and then spread on slides. For CMA3 staining, each slide was treated for 20 min with 100µl of CMA3 solution (0.25 mg/ml in McIlvaine buffer, pH 7.0, containing 10 mM MgCl2). The slides were then rinsed in buffer and mounted with buffered glycerol. Microscopic analysis of the slides was performed on a fluorescent Zeiss axioplane microscope with the appropriate filters. 文献3,Toepfer N et al. Atorvastatin induces autophagy in prostate cancer PC3 cells through activation of LC3 transcription. Cancer Biol Ther. 2011 Oct 15;12(8):691-9. PMID: 21768780 体外研究: 细胞类型(Cell type):PC3 cells 药物配制(Preparation):Chromomycin A3 was dissolved in ethanol as 1:1000 stock solution. 实验方法(Assay):PC3 cells were seeded at indicated densities in 12-well plates in triplicates and treated with DMSO, atorvastatin (10 μM), cyclohexamide (10 μg/ml) and chromomycin A3 (5 μM) or atorvastatin plus cyclohexamide or chromomycin A3. The cells were cultured for 2, 3 and 4 d, trypsinized, and counted by the cell counter Cellometer Auto T4. 苏州蚂蚁淘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。