Highlights
- Quick, 5-minute clean-up of large-sized DNA from any enzymatic reaction or impure preparation without messy precipitations.
- Unique spin column for low volume elution of ultra-pure, high-yield DNA.
- Eluted DNA is ideal for PCR, endonuclease digestion, sequencing, etc.
Description
| Applicable For | Eluted DNA is ideal for ligation, sequencing, labeling, PCR, microarray, transfection, transformation, restriction digestion procedures, and any other sensitive downstream application |
|---|---|
| Elution Volume | ≥ 10 µl of DNA Elution Buffer |
| Equipment | Microcentrifuge |
| Purity | A260/A280 > 1.8, A260/A230 > 1.8 |
| Sample Source | Enzymatic reactions or impure preparations containing genomic DNA. |
| Sample Storage | Eluted DNA can be used immediately or stored at ≤ -20°C. |
| Size Range | 50 bp to 200 kb |
| Yield | Recovery of DNA ranges from 70 - 95% |
Q1: What is the lower limit and minimal amount of DNA that can be recovered?
Picogram levels of DNA can be recovered. The limitation is based on sensitivity of detection method.
Q2: How can I process naked DNA stored in DNA/RNA Shield?
Use the standard protocol (add 2 or 5 volumes of DNA binding buffer depending on DNA size).
Q3: What should I do if I did not add ethanol to the DNA Wash Buffer before starting?
The DNA will be eluted off the column during the wash step. Rebind samples using the appropriate amount of DNA Binding Buffer and wash the column with the properly prepared wash buffer.
Q4: What happens if more DNA was loaded on the columns than the stated maximum binding capacity?
Oversaturation of the column can result in total DNA loss due to clogging of silica matrix.
Q5: How many times can columns be reloaded?
Zymo Research recommends no more than 5 times, as binding efficiency might decrease.
Q6: What is the minimum input volume of DNA sample?
Working with volumes below 50 µl can result in decreased recovery. Zymo Research recommends raising the starting volume to 100 µl with water to ensure optimal binding conditions.
| Cat # | Name | Size | Price | |
|---|---|---|---|---|
| C1002-25 | Zymo-Spin IC-XL | 25 Pack | $34.00 | |
| C1002-50 | Zymo-Spin IC-XL | 50 Pack | $66.00 | |
| D5201-1-50 | ChIP DNA Binding Buffer | 50 ml | $37.00 | |
| C1001-50 | Collection Tubes | 50 Pack | $15.00 | |
| C1001-500 | Collection Tubes | 500 Pack | $52.00 | |
| C1001-1000 | Collection Tubes | 1000 Pack | $90.00 | |
| D4003-2-6 | DNA Wash Buffer (Concentrate) | 6 ml | $10.00 | |
| D4003-2-24 | DNA Wash Buffer (Concentrate) | 24 ml | $33.00 | |
| D3004-4-1 | DNA Elution Buffer | 1 ml | $11.00 | |
| D3004-4-4 | DNA Elution Buffer | 4 ml | $10.00 |
ebiomall.com
>
>
>
>
>
>
>
>
>
>
>
>
1)克隆技术减轻些能母亲性痛苦
2)克隆实验实施推遗传发展制造物器官移植辟前景
3)克隆技术用于治疗神经系统损伤神经组织再干细胞修复神经损伤
克隆许缺点避免: 1)克隆技术干扰自演化程
2)克隆技术种昂贵技术需要量资金物专业参与失败率高
3)克隆技术应用于体导致代遗传性状工控制4)克隆技术用于创建超或强壮体魄智力迟钝外克隆技术效使用类遗传男性失意义
所说科技双刃剑优点缺点并没标准答案看着使用
用引物PCR扩增目基片段;
选择合适(抗性标记、酶切位点等)克隆载体(保真扩增),并PCR片段连接入克隆载体;(般用Taq酶PCR产物末尾自带A,Solution 1作用与两端各带T线性T载体直接相连)
连接产物转化入受态肠杆菌,使含抗素培养基扩增;
肠杆菌提取质粒(即前面连接产物),酶切鉴定测序鉴定均误目基片段切并与新表达载体连接,再转化入肠杆菌扩增,再提质粒,即想要目基片段克隆.
我已经知道了这个基因在其他物种中的序列和它所编码的蛋白质的序列,导师的意思是让我把它在大豆中克隆出来。我该怎么办?
听导师说,可能要用到RT-PCR。谁能帮帮我?
感激不尽啊!
我用简并引物从鸡cDNA中扩增出一个片段,约250bp,测序后拿来BLAST时却发现,与之同源性最高的并不是其它的Mx基因,而是人的某一个基因,比对的结果中与该序列同源性较高的有人及鼠Mx基因,但是同源性并不是很高。该基因在同一种生物的不同品种中具有多态性,已经有其它的鸡的Mx基因被克隆,按道理如果该片段是Mx基因的一部分它应该与其它的鸡的Mx基因有很高的同源性才对呀,所以,我怀疑简并引物PCR扩增出来的该片段不是Mx基因,因为RACE试剂盒很贵,现在也不敢继续作下去,怕作下去得不到什么结果。现在贴上我BLAST结果中score排在最前面的部分,还请有经验的兄弟帮我分析分析。我不胜感激。
Sequencesproducingsignificantalignments:(bits)Value
gi|19807872|gb|AC087694.3|Homosapienschromosome8,clone...460.033
gi|19073805|gb|AC090733.7|Homosapienschromosome8,clone...460.033
gi|38081550|ref|XM_358891.1|MusmusculussimilartoMyxovi...440.13
gi|47026513|gb|AC024957.9|Musmusculuschromosome16,clon...440.13
gi|13435314|gb|AC090999.1|CaenorhaBDitiseleganscosmidY8...440.13
gi|21955645|emb|AL732599.5|MouseDNAsequencefromcloneR...440.13
gi|199921|gb|J03368.1|MUSMX2Mouseinterferon-inducedMx2m...440.13
gi|31442540|gb|AC138314.4|MusmusculusBACcloneRP23-218B...420.52
gi|21591808|gb|AC092491.6|Homosapiens12BACRP11-125G9(...420.52
gi|40949625|gb|AC127597.5|MusmusculusBACcloneRP23-71A1...420.52
gi|6996929|ref|NM_010846.1|Musmusculusmyxovirus(influen...402.1
gi|15029783|gb|BC011113.1|Musmusculusmyxovirus(influenz...402.1
gi|13938021|gb|BC007127.1|Musmusculusmyxovirus(influenz...402.1
gi|19705454|ref|NM_134350.1|Rattusnorvegicusmyxovirus(i...402.1
gi|16041423|gb|AC091589.8|Homosapienschromosome18,clon...402.1
gi|47104230|gb|BT012815.1|Lycopersiconesculentumclone11...402.1
gi|20270172|gb|AC114485.2|Homosapienschromosome1clone...402.1
gi|28372591|gb|AC008939.8|Homosapienschromosome5clone...402.1
gi|19310326|gb|AC105250.3|HomosapiensBACcloneRP11-39C1...402.1
gi|37537322|dbj|BS000055.1|Pantroglodyteschromosome22c...402.1
gi|37537321|dbj|BS000054.1|Pantroglodyteschromosome22c...402.1
gi|18464281|gb|AC104690.2|HomosapiensBACcloneRP11-183P...402.1
gi|15321560|gb|AC079232.7|HomosapiensBACcloneRP11-360H...402.1
gi|56724|emb|X52713.1|RNMX3RatmRNAforMx3protein402.1
gi|56722|emb|X52712.1|RNMX2RatmRNAforMx2protein402.1
gi|56720|emb|X52711.1|RNMX1RatmRNAforMx1protein402.1
内容发布在蚂蚁淘和螺旋网上,有兴趣的战友也可以去那里看一下。
内容分三部分:
一、概述
1、克隆性染色体异常是肿瘤的特征
2、染色体异常常见的类型
3、染色体异常的检测方法
二、荧光原位杂交及其探针
1、荧光原位杂交的原理
2、荧光原位杂交的探针
三、荧光原位杂交探针的制备和荧光原位杂交(按试验流程介绍)
:D
FISH.pdf(1237.91k)

