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      主頁 > 新聞動態(tài) > 懋康生物重點推出染色體熒光探針-色霉素A3(CA3)
      新聞動態(tài)
      懋康生物重點推出染色體熒光探針-色霉素A3(CA3)

      Chromomycin A3 色霉素A3

       

      搜索關鍵詞:

      Chromomycin A3 色霉素A3Hoechst 33342 細胞核探針; Chromosome-banding 染色體分帶;Protamine deficiency 魚精蛋白缺乏;熒光DNA染料;CAS7059-24-7

      訂購信息:【高品質進口原料,現貨供應】:

      產品名稱

      產品編號

      規(guī)格

      CAS NO.

      價格(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

      產品描述:

      色霉素A3Chromomycin A3CMA3,CAS7059-24-7,同義名Aburamycin b,由灰色鏈霉菌Streptomyces griseus)代謝純化所得的一種蒽醌抗生素,具有抗菌、抗真菌和抗腫瘤活性。常用作一種熒光DNA染料,非常適合用來篩查經子染色質存在的精蛋白缺乏(protamine deficiency)。在二價金屬離子存在的條件下,色霉素A3CMA3)通過與DNA特異性結合與可逆作用來阻斷大分子合成。另外,通過結合到DNA小溝,色霉素A3有效調控與DNA促旋酶的競爭性抑制,從而顯著影響拓撲異構酶II活性。CMA3對非小細胞性肺癌和宮近癌呈現體外細胞毒性,作用于HCC44,A549ME180 HeLa細胞的IC50s分別是1,42,6040nM。CMA3還能通過改善Sp1Sp3轉錄因子結合來抑制氧化應激和DNA損傷誘導的神經損傷。具體內活性。

      產品特性

      1)   CAS NO7059-24-7

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

      3)   同義名:Toyomycin, Aburamycin B, Antibiotic 69895 A, Antibiotic B 599, NSC-58514

      4)   分子式:C57H82O26

      5)   分子量:1183.25

      6)   純度:>97%HPLC

      7)   外觀:類白色至黃色粉末

      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)化學結構式:

      產品使用【來自文獻,僅做參考】

      文獻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

      體外研究:

      樣本類型(Sample type):Semen Preparation

      應用目的(Purpose):Using CMA3 staining to determine quality chromatin packaging

      實驗方法(Assay):CMA3 staining thin smears were prepared, air dried, and ?xed 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 ?uorescent microscope.

      文獻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

      體外研究:

      樣本類型(Sample type):Semen aliquots

      應用目的(Purpose):Using CMA3 staining to assess the packaging quality of the chromatin in sperm

      實驗方法(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.

      文獻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

      體外研究:

      細胞類型(Cell type):PC3 cells

      藥物配制(Preparation):Chromomycin A3 was dissolved in ethanol as 1:1000 stock solution.

      實驗方法(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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      注意事項

      1)   本品具有一定的致癌和致畸活性,操作過程中請注意防護,避免直接接觸。

      2)   為了您的安全和健康,請穿實驗服并戴一次性手套操作。

       

       — —Written/Edited by V. Shallan【版權歸MKBio懋康所有】

       

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