z*******o 发帖数: 1794 | 1 我就觉得奇怪了,有人好心上来贴个出坑的帖子你冷嘲热讽干什么?每个大药厂因为筛
选antibody或者蛋白需要构建大量的载体提供测试,相应的会出来专门做clone的,专
门做细胞转化的和专门做纯化以及专门做assay的职位。理论上这些职位是不需要phd的
,但根据组员配备和公司要求这些职位中会有一些需要博士学位,一方面博士经验更加
丰富,另一方面博士也是潜在的快速升职对象。既然是大药厂,工资和其它的package
一般和当地大学的AP相当或者略高,这种职位对于在坑了呆久了的博后是一个非常好的
机会,当然也同样意味着激烈的竞争。希望坑里的博后们放低身段,别觉得自己一定要
拿20万以上的年薪,你的实际工作时间工资其实已经比马工高了。
说起找工作,还有一点。千万别眼高手低,你看着职位描述和自己很合,但你真正去面
了悲剧了才会知道自己的竞争对手有多厉害,这个市场上永远有比你合适的应聘者,你
要是能拿到offer只是说明那个时段你合hiring manager的意,没有拿到offer那就继续
加油因为总会有一个喜欢你的hiring manager在等你。 |
|
t*********1 发帖数: 70 | 2 求教各位大神推荐下cloning和分子生物学基础理论入门的课程 谢谢大家 |
|
发帖数: 1 | 3 《Gene Clone and DNA Analysis》,这是我读过的最好的一本书,清晰明了,图文并茂。
Amazon上书评目前是满分。你自己可以下到PDF版本。 |
|
N*********e 发帖数: 293 | 4 生物最没用的技能就是cloning,放到简历上都嫌寒碜
有功夫学这个,还不如去学cs |
|
l******u 发帖数: 2314 | 5 【原文请参见《纳米豆腐的世界》】
【http://nanotofu.blogspot.com/2007/12/exploration-of-swnt-cloning-continues.html】
Amplification of Single-Walled Carbon Nanotubes from Designed Seeds:
Separation of Nucleation and Growth
Douglas Ogrin, Robin E. Anderson, Ramon Colorado, Jr., Benji Maruyama, Mark
J. Pender, Valerie C. Moore, Sean T. Pheasant, Laura McJilton, Howard K.
Schmidt, Robert H. Hauge, W. Edward Billups, James M. Tour, Richard E.
Smalley, and Andrew R. Barron
J. Phys. Chem. C, 2007, 111 (48), 17804-17806 |
|
c**********e 发帖数: 21 | 6 recall that i did that in college. u can search online by {clone excel vba} |
|
c*****t 发帖数: 1879 | 7 Easy, I will just point a region on a bacterial chromosome and
say that's a gene. Unless you could give a precise definition of
gene cloning in 1950s, I wouldn't even bother. |
|
c*****g 发帖数: 1856 | 8 我觉得clone gene don't need to cut the DNA off ba.
i think some ribozyme can work on this. |
|
g******k 发帖数: 188 | 9
I don't know the correct answer either, that is why I am asking,
one of my committee member asked me about this
I think there are some tricky part, he mentioned about using lacZ opern
this is realy a tough question for those whose major in Molecular Biology.May
be only some guys from Harvard or MIT etc. could answer it,or it is very bad
question.
the question is"how would you clone a gene in 1950's, when the endonuclease
has not been dicovered yet?" |
|
s**********i 发帖数: 711 | 10
3 people won 1978 Nobel price for discovering endonuclease.
any paper on molecular cloning before early 70s should have no
endonuclease mentioned... |
|
y***m 发帖数: 7027 | 11 mit=不要提多差
站内转信丢信问题n久不能发现不能解决,什么破技术,老邢太抠整天打广告,发枪文
,钻的钱还舍不得提高服务.钻风等clone所有数据代码办个新站好了 |
|
d*****r 发帖数: 39446 | 12 【此篇文章是由自动发信系统所张贴】
clonee 已经退出本俱乐部, 特此通知. |
|
d*****r 发帖数: 39446 | 13 【此篇文章是由自动发信系统所张贴】
clonee 已经退出本俱乐部, 特此通知. |
|
d*****r 发帖数: 39446 | 14 【此篇文章是由自动发信系统所张贴】
clonee 已经成为本俱乐部的正式成员, 特此通知. |
|
d*****r 发帖数: 39446 | 15 【此篇文章是由自动发信系统所张贴】
clonee 已经退出本俱乐部, 特此通知. |
|
d*****r 发帖数: 39446 | 16 【此篇文章是由自动发信系统所张贴】
clonee 已经退出本俱乐部, 特此通知. |
|
|
|
d*****r 发帖数: 39446 | 19 【此篇文章是由自动发信系统所张贴】
clonee 已经退出本俱乐部, 特此通知. |
|
|
d*****r 发帖数: 39446 | 21 【此篇文章是由自动发信系统所张贴】
clonee 已经退出本俱乐部, 特此通知. |
|
|
b*z 发帖数: 48 | 23 i like to compare the development of atomic bomb and cloning.
when atomic bom was developed, scientists knew:
1. how much power an atomic bomb made of certain amount of materials
could give off.
2. how the power could be controlled.
3. there was a need to end ww2 as quick as possible. (you may argue
there were other ways to end the war. but these arguments don't fit
here.)
4. there was great potential using atomic energy peacefully. and indeed
we are using atomic energy safely. (you may argue ag |
|
发帖数: 1 | 24
Download pdf published by SfN (Chapter from 'The History of Neuroscience in
Autobiography, Volume 8' edited by Larry R. Squire)
Yuh-Nung Jan's CV
Lily Jan's CV
Yuh-Nung Jan and Lily Jan
Birth
Family History and Growing Up
National Taiwan University
The Hiking Trip to Shitou in the Spring of 1967
Graduate School Application
Graduate Study at Caltech (1968锟974)
Seymour Benzer Lab (1974锟977)
Steve Kuffler锟絪 Lab at H... 阅读全帖 |
|
r******g 发帖数: 600 | 25 看到 很多大牛们出来讨论 那个克隆的问题~ 我也来征求一下大家的suggestions~
我们实验室 研究一个 mitochondrial protein的功能。 是一个mitochondrial
transmembrane protein。我的实验目的 是,克隆表达 这个蛋白的 5'-HA tag-Nter
region-Transmembrane-3' (缩写HA-Nter clone) 和 5'-HA tag-transmembrane-C-ter
region-3' (HA-Cter clone) 两个truncated protein.
clone挺简单,因为 克隆cDNA,并且,蛋白很小,只有200氨基酸。我克隆的片段也挺
小的,没有经历太多难度。我把 Nter clone 和 Cter clone 都克隆到 一个
retroviral vector,coding region后面有一个IRES-GFP。plasmid 8.6kb。
接下来,我把这个HA-Nter clone 和HA-Cter clone,用293 cell 表达(CaCl2
transfection).
... 阅读全帖 |
|
l****z 发帖数: 29846 | 26 看看这个吧,应该更快更有疗效.
Embryonic Cloning Shows Promise in Diabetes Treatment
Healthy Stem Cells Extracted From Embryonic Clone and Changed Into Cells
That Produce Insulin
For the second time in recent weeks researchers said they used cloning
technology on adult tissue, rather than from a fetus or infant, to create
stem cells that potentially could be used to treat a range of diseases.
Researchers said Monday they created an embryonic clone of a 32-year-old
woman with diabetes, extracted healthy stem ce... 阅读全帖 |
|
W*****B 发帖数: 4796 | 27 她会不会哪天把自己丈夫给克隆了?她有丈夫没?
Barbra Streisand Explains: Why I Cloned My Dog
In a frank and lengthy interview in Variety this week, Barbra Streisand
dropped one very notable aside: that two of her dogs were clones of a
previous dog, Samantha, who had recently died. Here, Ms. Streisand explains
how this medical marvel, born of sadness, came to pass.
I was so devastated by the loss of my dear Samantha, after 14 years together
, that I just ... 阅读全帖 |
|
i***l 发帖数: 9994 | 28 google
"use acronis to clone Windows 8 to SSD"
this article below is a procedure to do it:
http://www.tomshardware.com/faq/id-1653258/migrate-windows-ssd.
In case Windows 8 is installed on a regular hard disk drive, users can
migrate the operating system to an SSD by cloning the system drive with the
help of any imaging application, and then restoring the clone to the SSD.
How to Migrate Windows 8 on a SSD Using Acronis True Image Home?
In order to migrate Windows 8 to and SSD using Acroins True... 阅读全帖 |
|
C*I 发帖数: 4736 | 29 一直在误导,现在还在误导。 说说明corona virus 不可以从蝙蝠直接传染给人,必须
经过一个中间宿体性的其它动物才能传染给人。所以,病毒发生后,就故意误导全国人
民去海鲜市场找证据,找其它野生动物的麻烦。 而且还是病毒所去找的,找完了还装
模做样化验呀,分离呀什么的。最后把责任全部推给了海鲜市场的动物。可是那种动物
,一直不敢说,说了其它相关已经在人就会去早那种动物监测。 所以压根不说,打马
虎眼。
事实上,早在2013 年,就是这个武汉病毒研究所,已经从来自云南的蝙蝠身上所携带
的corona virus中分离出第一株蝙蝠SARS类似样的冠状病毒的活病毒,其中就包含了类
似于S类型的基因。从而证实这株病毒能够使其接受和SARS病毒相同的受体,并能够感
染人的细胞。对此新发现,武汉病毒所还把它以武汉病毒研究所的英文简称命名“WIV1
”,以彰显这一发现的重要价值和属于自己第一个发现的巨大研究成果。这个成果刊载
于2013年11月的《自然》杂志。
就是说,从云南弄回来的这种蝙蝠所携带的类似于sars的 corona virus, 可以不经过
其它受体/宿体,而直接传染给人。 他们... 阅读全帖 |
|
C*I 发帖数: 4736 | 30 一直在误导,现在还在误导。 说说明corona virus 不可以从蝙蝠直接传染给人,必须
经过一个中间宿体性的其它动物才能传染给人。所以,病毒发生后,就故意误导全国人
民去海鲜市场找证据,找其它野生动物的麻烦。 而且还是病毒所去找的,找完了还装
模做样化验呀,分离呀什么的。最后把责任全部推给了海鲜市场的动物。可是那种动物
,一直不敢说,说了其它相关已经在人就会去早那种动物监测。 所以压根不说,打马
虎眼。
事实上,早在2013 年,就是这个武汉病毒研究所,已经从来自云南的蝙蝠身上所携带
的corona virus中分离出第一株蝙蝠SARS类似样的冠状病毒的活病毒,其中就包含了类
似于S类型的基因。从而证实这株病毒能够使其接受和SARS病毒相同的受体,并能够感
染人的细胞。对此新发现,武汉病毒所还把它以武汉病毒研究所的英文简称命名“WIV1
”,以彰显这一发现的重要价值和属于自己第一个发现的巨大研究成果。这个成果刊载
于2013年11月的《自然》杂志。
就是说,从云南弄回来的这种蝙蝠所携带的类似于sars的 corona virus, 可以不经过
其它受体/宿体,而直接传染给人。 他们... 阅读全帖 |
|
C*I 发帖数: 4736 | 31 Published: 30 October 2013
Isolation and characterization of a bat SARS-like coronavirus that uses the
ACE2 receptor
Xing-Yi Ge, Jia-Lu Li, Xing-Lou Yang, Aleksei A. Chmura, Guangjian Zhu,
Jonathan H. Epstein, Jonna K. Mazet, Ben Hu, Wei Zhang, Cheng Peng, Yu-Ji
Zhang, Chu-Ming Luo, Bing Tan, Ning Wang, Yan Zhu, Gary Crameri, Shu-Yi
Zhang, Lin-Fa Wang, Peter Daszak & Zheng-Li Shi
Nature volume 503, pages535–538(2013)Cite this article
Abstract
The 2002–3 pandemic caused by severe acute respirator... 阅读全帖 |
|
N********n 发帖数: 8363 | 32
roughly like this:
Node duplicate (Node original) {
Node old, clone, cloneHead;
if (original == null)
return null;
old = original;
while (old != null) {
clone = new Node ();
clone.nx = old.ranx;
old.ranx = clone;
old = old.nx
} // hook clone up with old
old = original;
while (old != null) {
clone = old.ranx;
clone.ranx = clone.ranx.ranx;
old = old.nx;
} // set clone.ranx
old = original;
cloneHead = old.ranx;
while (old.nx != null) |
|
d********0 发帖数: 5142 | 33 ☆─────────────────────────────────────☆
mercuriusl (Mercurius) 于 (Thu Dec 16 00:40:36 2010, 美东) 提到:
ghetto
☆─────────────────────────────────────☆
Minsco (Love 胖P!) 于 (Thu Dec 16 01:25:35 2010, 美东) 提到:
pirate or knock-off
☆─────────────────────────────────────☆
deadpig (死猪) 于 (Thu Dec 16 01:27:48 2010, 美东) 提到:
shanzai
☆─────────────────────────────────────☆
monokeros (独角兽) 于 (Thu Dec 16 01:30:21 2010, 美东) 提到:
pirated
☆─────────────────────────────────────☆
ivanhuang881 (iv... 阅读全帖 |
|
n********k 发帖数: 2818 | 34 谢谢你的详细意见。首先要说,我做分子克隆的经验不是很多。其次,基本不会不改变
条件反复重复。
1 当初选用pQE8也是没有办法,因为pQE9我们实验室没有(pQE8和9的区别就是8在酶切
位点之间只有一个碱基,而9要长得多)。最开始的时候没有意识如此近的酶切位点很
难切下来,最起码同时酶切不可能切下来。但是只尝试过一次顺序酶切不行就没有再尝
试用pQE8了,我不记得是先切BamH1还是Hind3,后面尝试插一段片段在2个酶切位点之
间再切。
Nice alternative, shall solve the problem in this case...but I would just do
blunt ligation, nowadays, the fast ligation kits from different companies
such as Roche, takara, don't really care about whether it is sticky or blunt
ends, it works just as well...BTW, any one else ... 阅读全帖 |
|
|
M******a 发帖数: 6723 | 36 【 以下文字转载自 Mod_CHN_Hist 讨论区 】
发信人: Mayingba (吳鐘學), 信区: Mod_CHN_Hist
标 题: 奉天兵工厂
发信站: BBS 未名空间站 (Sun Jan 28 20:29:57 2018, 美东)
https://wwiiafterwwii.wordpress.com/2017/04/03/mukden-arsenal-after-wwii/
Mukden Arsenal after WWII
April 3, 2017 jwh19752 Comments
(Zhang's Gate, the old entrance to Mukden Arsenal)
For people interested in Japanese firearms of WWII, the name Mukden Arsenal
is familiar. The history of the facility after Japan's defeat is less well
known. Under various names, it did surv... 阅读全帖 |
|
c****t 发帖数: 19049 | 37 AN ORISON OF SONMI~451
On behalf of my ministry, thank you for agreeing to this final interview.
Please remember, this
isn’t an interrogation, or a trial. Your version of the truth is the only
one that matters.
TRUTH IS SINGULAR. ITS “VERSIONS” ARE MISTRUTHS.
… Good. Ordinarily, I begin by asking prisoners to recall their earliest
memories to provide a
context for corpocratic historians of the future. Fabricants have no
earliest memories,
Archivist. One twenty-four-hour cycle in Papa Song’s is i... 阅读全帖 |
|
r****o 发帖数: 105 | 38 IMAGE clones估计是没戏的。IMAGE 是Integrated Molecular
Analysis of Genomes and their Expression 的缩写。网址http://
image.llnl.gov. 实际上是一个EST cDNA clones library. 你可以
在invitrogen订购,http://clones.invitrogen.com/
收得倒挺全,但是序列可能会有问题,在3'端常常有错误,出现stop
codon什么的。你这个基因这么大,很难保证有完全正确的cDNA.
当然你也可以选择一些测过全长,甚至可以直接表达的clone库,
同样是http://clones.invitrogen.com. 但是这种库clone十分有限,
你要的基因不一定在里面。另外日本有个免费的克隆库,
http://www.kazusa.or.jp/huge/ , 你可以去找找。
另外,实际序列与网上序列库序列有微小的不一致,其实一点也不
奇怪。我就遇到过这种情况。建议你先问问给你clone的实验室,看
他们的意见 |
|
l**********1 发帖数: 5204 | 39 U sure?
even Yeast xxx better than non xxxx
Coelho MA, Gonçalves P, Sampaio JP.
Evidence for maintenance of sex determinants but not of sexual stages in red yeasts, a group of early
diverged basidiomycetes.
BMC Evol Biol. 2011 Aug 31;11:249
Abstract
BACKGROUND:
The red yeasts are an early diverged group of basidiomycetes comprising sexual and asexual species.
link:
//www.ncbi.nlm.nih.gov/pubmed/21880139
and
Pound GE, Doncaster CP, Cox SJ.
A lotka-volterra model of coexistence between a sexu... 阅读全帖 |
|
m*********D 发帖数: 1727 | 40 哈哈,是啊,sequencing gel跑了多年,压那些X-光片,都是美好的回忆。
读博士的时候,在国内给Bio-rad纯化一种高温DNA polymerase,能解决sequecing反应
时不少二级结构的问题,还挣过几千外快呢。S-35是后来的吧,记得前面用p-32,后来
是P-33,再到S-35。
NEB的catalog确实是一本分子克隆的好书。在国内虽然是作分子生物学出生,克隆没少
作,但来美国作博士后,要作knockout construct时,才真正变成cloning expert:
pUC18里要塞进一个20kb的片断,找合适的restriction enzyme都困难呀。记得当时就
一个Not I是识别八个bp的酶,很有用,另一个是Sal I。Sal I是识别六个bp,但在老鼠
genome里,不知什么原因,位点很少,几个constructs的最后一步,三片断连接都是两
边用Sal I和中间另一个酶。有一个cloning strategy, 整整两天都没有想出来,只好
周末放弃了,去钓鱼,突然想出来的。那时候NEB catalog是比Molecular Cloning还... 阅读全帖 |
|
m*********D 发帖数: 1727 | 41 哈哈,是啊,sequencing gel跑了多年,压那些X-光片,都是美好的回忆。
读博士的时候,在国内给Bio-rad纯化一种高温DNA polymerase,能解决sequecing反应
时不少二级结构的问题,还挣过几千外快呢。S-35是后来的吧,记得前面用p-32,后来
是P-33,再到S-35。
NEB的catalog确实是一本分子克隆的好书。在国内虽然是作分子生物学出生,克隆没少
作,但来美国作博士后,要作knockout construct时,才真正变成cloning expert:
pUC18里要塞进一个20kb的片断,找合适的restriction enzyme都困难呀。记得当时就
一个Not I是识别八个bp的酶,很有用,另一个是Sal I。Sal I是识别六个bp,但在老鼠
genome里,不知什么原因,位点很少,几个constructs的最后一步,三片断连接都是两
边用Sal I和中间另一个酶。有一个cloning strategy, 整整两天都没有想出来,只好
周末放弃了,去钓鱼,突然想出来的。那时候NEB catalog是比Molecular Cloning还... 阅读全帖 |
|
M******a 发帖数: 6723 | 42 来自主题: Mod_CHN_Hist版 - 奉天兵工厂 https://wwiiafterwwii.wordpress.com/2017/04/03/mukden-arsenal-after-wwii/
Mukden Arsenal after WWII
April 3, 2017 jwh19752 Comments
(Zhang's Gate, the old entrance to Mukden Arsenal)
For people interested in Japanese firearms of WWII, the name Mukden Arsenal
is familiar. The history of the facility after Japan's defeat is less well
known. Under various names, it did survive for some time, producing an odd
mix of WWII weapons after the war's end.
(Mukden Arsenal proofmark during WWII)
Mukden an... 阅读全帖 |
|
n**n 发帖数: 626 | 43 from Wikipedia
United States[edit]
In 1998, 2001, 2004, and 2007, the United States House of Representatives
voted whether to ban all human cloning, both reproductive and therapeutic.
Each time, divisions in the Senate over therapeutic cloning prevented either
competing proposal (a ban on both forms or reproductive cloning only) from
passing. On March 10, 2010 a bill (HR 4808) was introduced with a section
banning federal funding for human cloning.[60] Such a law, if passed, would
not prevent re... 阅读全帖 |
|
s********n 发帖数: 2939 | 44 不是很了解来龙去脉,你是没有带有不同tags的载体么?这样做克隆效率当然会很低啊。
如果你下一次做类似的课题,我建议你用Gateway cloning system,只需要将你的基因
克隆到pENTR vector(RE cloning,LIC cloning, TOPO cloning or BR
recombination),然后你就可以随意的将你的基因克隆到其他带有不同tag的pDEST
vectors上了,效率很高。
其他的还有ligation independent cloning (T4 DNAPol)和In-fusion cloning。 |
|
n********k 发帖数: 2818 | 45 well,it is a problem-solving issue: there are always many choices and I
would think it over and over like with any complex experimentations: what
are the options and what might be a best one to approach this...As far as I
am thinking, the less passaging the better...otherwise one might be running
a risk of picking the cells from a same clone multiple times; as well, the
clonal growth/death bias over the passaging could also dramatically change
the properties of the culture over time...numerous ... 阅读全帖 |
|
c********n 发帖数: 225 | 46 谈谈和蛋白打交道的日子 (一)
序
笔者已经做了多年和蛋白相关的科研与服务,产品研发生产以及产业化。在这里分享一
下与蛋白打交道这些年带来的一些感想。其实所有的科学研究都是用来解决人类已经和
即将遇到的各种各样的问题的,只有解决了问题才会有更大的存在价值。
第一篇 DNA测序, Sanger Style - 纪念Frederick Sanger
2013年11月20号,Frederick Sanger 去世了, 享年95岁。Sanger是DNA测序之父,获
得过两次诺贝尔奖, 一个是1958年蛋白测序, 另一个是1980年DNA测序。虽然DNA结构
发现的比蛋白晚, 但毕竟是genetic code,master script。ATCG四个碱基的组合比蛋
白的20个氨基酸的天文数字组合可更容易研究找规律了。人天生就是个好奇的动物,
最喜欢找规律, 尤其喜欢从简单的地方入手,所以围绕DNA的研究在Watson-Crick的碱
基配对这个简单地规律被发现以后,起来的就比蛋白快了很多。其实DNA和蛋白, 就像
是帅才和将才, 他们的用处是不同的,需要出色的帅才(DNA)订好了方向,能干的将... 阅读全帖 |
|