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- 供应商：
上海圻明生物
- 规格：
2μg
绿脓假单胞菌PCR阳性对照质粒上海圻明生物优势供应。更多产品资料欢迎免费咨询。
One of the many important uses of PCR technology is that it can be used to label DNA probes with high specific activity. PCR technology has high specificity, and can synthesize probe DNA fragments in quantities within 1~2h if [α-32P]dNTP or other markers are added to the substrate
dNTPs, the probe DNA can be well labeled during DNA synthesis, and the incorporation rate of the marker can be as high as 70%~80%. Therefore, PCR labeling technology is particularly suitable for large-scale detection and non-radiolabeling. The disadvantage of this method is that a specific pair of PCR primers is synthesized.
Labeling can also be achieved by using small fragments prepared from probe DNA as primers.
Solution preparation
1. Prepare a stock solution
Unless otherwise stated, all unused stock solutions should be divided into disposable aliquots and stored at -20 °C after preparation. Avoid repeated freeze-thaw cycles.
1.1* Acid Stock Solution (125X):
Add 20 μL DMSO to *ate (component B) to make a 125X* acid stock solution.
2. Prepare standard solutions
*Salt standard solution
Add 50 μL of 1 mM KH2PO4 (Component C) to 950 μL of deionized water or enzyme reaction buffer to give a 50 μM * saline standard solution (PS7). A 50 μM * saline standard solution (PS7) was taken and serially diluted 1:2 to obtain a serially diluted phosphate standard with deionized water or enzyme reaction buffer.
3. Prepare a working solution
Add 20 μL of 125X* stock solution to 2.5 mL of sterile H2O and mix well to make a working solution of *salt. Avoid potential Pi contamination. Note: Avoid direct exposure of *salts (component B) to light. Due to the high sensitivity of this assay to Pi, it is extremely important to use Pi-free labware and reagents.
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文献和实验检验技士考试辅导 铜绿假单胞菌的的生物学特性2011年 铜绿假单胞菌属于假单胞菌属，是一种非发酵革兰阴性菌，菌体细长且长短不一，有时呈球杆状或线状，成对或短链状排列。菌体的一端有一根鞭毛，在暗视野显微镜或相差显微镜下观察可见细菌运动活泼。本菌生长温度范围25～42℃，最适生长温度为35℃，特别是该菌在4℃不生长而在42℃可以生长的特点可用以鉴别。需氧生长，在普通培养基上可以生存并能产生水溶性的色素。在血平板上会溶血。 该菌含有O抗原（菌体抗原）以及H抗原（鞭毛
代谢等而专一地杀死其他肠道细菌的功能，其分子量约 4 × 104 ~8 × 104Da 。假单胞菌属（ Pseudomonas ） 和巨大芽孢杆菌（ Bacillus megaterium ）分别含有能决定产生绿脓杆菌素（ pyocin ）和巨杆菌素（ megacin ）等细菌素（ bacteriocin ）的质粒。 Col 因子可分两类，分别以 ColEl 和 ColIb 为代表。前者分子量小，约为 5 × 106 Da ，无接合作用，是多拷贝
铜绿假单胞菌（Pseudomonas aeruginosa，PA）又称绿脓杆菌，是引起急性或慢性感染的最常见的条件致病菌之一，由其引起的院内感染往往治疗难度极大，几乎具有目前已知的细菌主要耐药机制，已成为引起院内获得性肺炎多重耐药革兰阴性菌的代表。PA 感染是治疗的难题，归其原因，在于其广泛而多重的耐药性。因此，了解铜绿假单胞菌的耐药相关基因的情况，有助于临床研发更有效的治疗铜绿假单胞菌感染性疾病的抗菌药物。PA 的耐药机制概括起来主要有以下几个方面：各种外排泵系统的过度
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