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懋康生物重点推出染色体荧光探针-色霉素A3(CA3)

时间:2018-02-11      阅读:3492

Chromomycin A3 色霉素A3

 

搜索关键词:

Chromomycin A3 色霉素A3Hoechst 33342 细胞核探针; Chromosome-banding 染色体分带;Protamine deficiency 鱼精蛋白缺乏;荧光DNA染料;CAS7059-24-7

订购信息:【高品质进口原料,现货供应】:

产品名称

产品编号

规格

CAS NO.

价格(元)

Chromomycin A3 色霉素A3

MX4218-1MG

1mg

7059-24-7

880

Chromomycin A3 色霉素A3

MX4218-5MG

5mg

7059-24-7

2980

产品描述:

色霉素A3Chromomycin A3CMA3CAS7059-24-7,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,非常适合用来筛查经子染色质存在的精蛋白缺乏(protamine deficiency)。在二价金属离子存在的条件下,色霉素A3CMA3)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近癌呈现体外细胞毒性,作用于HCC44A549ME180 HeLa细胞的IC50s分别是1426040nMCMA3还能通过改善Sp1Sp3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 NO7059-24-7

2)   化学名:3B-O-(4-O-acetyl-2,6-didexy-3-C-methyl-α-L-arabino-hexopyranosyl)-7-methylolivomycin D

3)   同义名:Toyomycin, Aburamycin B, Antibiotic 69895 A, Antibiotic B 599, NSC-58514

4)   分子式:C57H82O26

5)   分子量:1183.25

6)   纯度:>97%HPLC

7)   外观:类白色至黄色粉末

8)   Ex/Em Max445/575 nm

9)   溶解性:溶于乙醇(~20mg/ml),DMSO~20mg/ml),乙酸乙酯(10mg/ml

10)化学结构式:

产品使用【来自文献,仅做参考】

文献1Esterhuizen 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, and fixed 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 Nikon fluorescent microscope.

文献2Iranpour 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3Toepfer 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.

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注意事项

1)   本品具有一定的致癌和致畸活性,操作过程中请注意防护,避免直接接触。

2)   为了您的安全和健康,请穿实验服并戴一次性手套操作。

 

 — —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产品。

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