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全部话题 - 话题: frt
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n***w
发帖数: 2405
1
来自主题: Biology版 - conditional KO动物的育种方法?
http://ko.cwru.edu/services/chimeras.shtml
Check this page. I haven't never used FLP-FRT system.
s*****i
发帖数: 315
2
来自主题: Biology版 - 也问一个knockout小鼠的问题
some times knockout first may have leakage, and still result in GOI
expression.
Breeding with Cre makes it is a real knockout.
FRT makes it conditional.

and
is
t******k
发帖数: 5617
3
来自主题: Biology版 - 也问一个knockout小鼠的问题
理论上用KO老鼠做实验需要用fl/fl的litter mates做control. 不用FRT切的话,你的
control老鼠就依然是KO fist,而不是fl/fl的老鼠。这样你做实验就成了whole body
KO vs conditional KO了。
D*a
发帖数: 6830
4
来自主题: Biology版 - 也问一个knockout小鼠的问题
已经有很多人都发现他们带着neo的老鼠本身就造成了allele的表达受影响了。包括我
们以前用的。wt和有neo的蛋白量差很多,表型也有影响。可能是因为rna长度变了影响
了剪切。
FRT的影响不知道。
不知道啥叫leakage。
你要真想知道,就自己跑个蛋白看看。不过这种报道出来的都好几个了。
q******i
发帖数: 457
5
来自主题: Biology版 - 也问一个knockout小鼠的问题
你的老鼠拿到手就是whole body Het,因为在exon前面插入了几千bp的片段,干扰了
target gene的表达,如果你直接breed het to het, 理论上可以得到 whole body KO
,当然你需要检测protein level以确认。如果你想要得到conditional KO, 就必须先
和flp的老鼠交配,去掉两个FRT之间的部分,得到的就是一个正常的flox老鼠,这时候
再和不同的cre交配就可以得到conditional KO。这种方法可以更快的得到whole body
KO,因为给你的就相当于Het了。
w*********1
发帖数: 27
6
Try FLIP-IN system. pcDNA5-FRT/TO
s******s
发帖数: 13035
7
来自主题: Biology版 - 许田为啥不行了?
许田phd做的FRT/FLP这个就够超重量级的工作了。这种级别的多做几个估计就能碰上
诺贝尔奖了。大家expectation太高。
h******y
发帖数: 351
8
为啥需要两个抗性基因?
x********e
发帖数: 35261
n***g
发帖数: 5027
10
已被占用了。
x********e
发帖数: 35261
11
loxp variants
搜brainbow
o**4
发帖数: 35028
12
我有个ES细胞系,里面有FLP/FRT系统,有能直接处理细胞的Flippase吗?
是不是都得用病毒之类的flippase?这样会整合到基因组吧?
非常感谢,
o**4
发帖数: 35028
13
还有什么别的系统可以用呢?
谢谢。
w***w
发帖数: 6301
g***e
发帖数: 577
15
来自主题: Quant版 - QTS_Research Updates (转载)
【 以下文字转载自 Stock 讨论区 】
发信人: geome (老网友), 信区: Stock
标 题: QTS_Research Updates
发信站: BBS 未名空间站 (Tue Mar 7 18:00:08 2017, 美东)
Hi,
Continue on the project, I would like to post the preliminary result of
backtest for all SP500 underlyers using Moving Average Stategy for the last
10 years: (ie, buy/sell signal by crossing of 10day and 25day average ).
Sorry for the messy format - you can get a cleaner download of the csv file
in-
http://www.icanbeatmarket.com/research_reports.html
ticker return ... 阅读全帖
y***k
发帖数: 1078
16
来自主题: _Stockcafeteria版 - GAME seems bottom out
Anyone plays GAME? It seems in a good shape. Today it is added in
nasdaq china index. It is a short term boost.
ZT a post in yahoo message board:
http://messages.finance.yahoo.com/Stocks_(A_to_Z)/Stocks_S/threadview?
m=tm&bn=99506&tid=3657&mid=3657&tof=2&frt=2
GAME's forward P/E is 7, which makes this stock ridiculously cheap
because its growth story is still intact--as demonstrated by the
institutional ownership rising from 29.5 to over 32% since Friday.
GAME's revenues are from the online ma
b*****h
发帖数: 3386
17
来自主题: _pennystock版 - 关于UNG的很好分析
【 以下文字转载自 Stock 讨论区 】
发信人: wagmal (超级偶像,工藤静香), 信区: Stock
标 题: 关于UNG的很好分析
发信站: BBS 未名空间站 (Fri Jun 12 19:42:01 2009, 美东)
意思就是,如果你想long 天然气,不要买UNG,而是买天然气生产企业的股票,你想浪
石油,不要买USO,而是买XLE,如果想浪农产品,不要买DBA,买MOO。
http://messages.finance.yahoo.com/Stocks_%28A_to_Z%29/Stocks_U/threadview?m=te&bn=51477&tid=34061&mid=34061&tof=4&frt=4#34061
UNG Roll 11-Jun-09 05:36 pm
I am going to try to explain objectivly to those that are confused.
If you own UNG you do not own Natural Gas per se. You own a share in... 阅读全帖
n**********6
发帖数: 558
18
来自主题: _pennystock版 - AGM
下周出Q2 ER,具体时间还没看到有权威的公告,搞不懂。我从$5拿着至今,大家还敢
追否?
整体来说上半年美国风调雨顺,Q2肯定比Q1好,再帖上yahoo message board上的一位
哥们的分析:http://messages.finance.yahoo.com/Stocks_%28A_to_Z%29/Stocks_F/threadview?m=tm&bn=27633&tid=5490&mid=5490&tof=13&frt=2
What is a proper valuation for AGM ? 29-Jul-09 11:30 am As I've
posted before, historically AGM has recieved a 10-12 PE, so why not now ?
There is really no reason at all except for the fact that skeptics likely
think AGM will start making substantially less in earnings ... 阅读全帖
b*****h
发帖数: 3386
19
来自主题: _pennystock版 - 讨论一下BPSG的FA吧
FA参数不错,不过不会是空心大萝卜吧?
刚才去yahoo看到的一个讨论
http://messages.finance.yahoo.com/Stocks_(A_to_Z)/Stocks_B/threadview?
m=te&bn=27860&tid=2359&mid=2359&tof=8&frt=2#2359
c***m
发帖数: 2630
20
来自主题: _pennystock版 - Just checked my bad positions recently
http://messages.finance.yahoo.com/Stocks_%28A_to_Z%29/Stocks_X/threadview?m=te&bn=72398&tid=3162&mid=3162&tof=8&frt=2#3162
keep watching.

funds are shorting China.
holding it, and day-trading it to lower the average cost.
N***i
发帖数: 2063
21
Best-Rated Financial Stocks Updated June 23, 2010
http://www.nasd100.com/2010/06/bestrated-financial-stocks-updated-june-23-2010.html
Ranking | Company (Ticker) | Average Rating Value | Average Rating
1 IRSA Inversiones Representaciones (ADR) (NYSE:IRS) 1.00 Strong Buy
2 Primus Guaranty, Ltd. (NYSE:PRS) 1.00 Strong Buy
3 China Life Insurance Company Ltd. (ADR) (NYSE:LFC) 1.00 Strong Buy
4 National Bank of Greece (ADR) (NYSE:NBG) 1.00 Strong Buy
5 HDFC Bank Limited (ADR) (NYSE:HDB) 1.00 ... 阅读全帖
w***y
发帖数: 2537
22
来自主题: _pennystock版 - Events and ER for week August 2-6 (转载)
【 以下文字转载自 Stock 讨论区 】
发信人: ll111 (Stealth), 信区: Stock
标 题: Events and ER for week August 2-6
发信站: BBS 未名空间站 (Sun Aug 1 22:47:17 2010, 美东)
Monday, Aug. 2
10 a.m.: ISM Manufacturing index on business activity in July, released by
the Institute for Supply Management.
10:15 a.m. Federal Reserve Chairman Ben Bernanke speaking on "challenges for
the economy and state governments."
4 p.m. Treasury Secretary Timothy Geithner speaking on the next steps for
financial reform.
Tuesday, Aug. 3
8:30 a.m.: P... 阅读全帖
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