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全部话题 - 话题: deaminase
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r********r
发帖数: 789
1
来自主题: Biology版 - Paper Help. Thanks.
Searched librarys from two universities and couldn't find them.
Please help. Thank you very much.
(1) Purine, purine nucleoside, and purine nucleotide aminohydrolases
Zielke, C.L.; Suelter, C.H.; Enzyme 4, 47-78 (1971)
(2) Guanosine deaminase and guanine deaminase from tea leaves
Negishi, O.; Ozawa, T.; Imagawa, H.; Biosci. Biotechnol. Biochem. 58, 1277-
1281 (1994)
(3) Studies on the guanosine degrading system in bacterial cell. Part III.
Purif
ication and properties of guanosine deaminase
Ishi... 阅读全帖
b*********b
发帖数: 64
2
http://www.sciencemag.org/content/343/6176/1221.abstract
Research Article
Specific and Nonhepatotoxic Degradation of Nuclear Hepatitis B Virus cccDNA
Lucifora J1, Xia Y, Reisinger F, Zhang K, Stadler D, Cheng X, Sprinzl MF,
Koppensteiner H, Makowska Z, Volz T, Remouchamps C, Chou WM, Thasler WE, Hü
ser N, Durantel D, Liang TJ, Münk C, Heim MH, Browning JL, Dejardin E,
Dandri M, Schindler M, Heikenwalder M, Protzer U
Current antiviral agents can control but not eliminate hepatitis B virus (
HBV),... 阅读全帖
j****n
发帖数: 3370
3
估计没读过文章吧?
用的是dcas9+cytodine deaminase
dcas9起定位作用 deaminase起突变作用
当然该系统也有限制 只能突变C (主要变成G和T)而且和PAM的距离也有要求
喷之前最好看看文章
S*******s
发帖数: 13043
4
Intel Science Talent Search 2013
Finalists and Research Project Titles
Name
Pr
oject Title
P
age
Paulomi Bhattacharya
A No
vel AAA-ATPase p97/VCP Inhibitor Lead for Multiple
4
My
eloma by Fragment-Based Drug Design: A Computational
Binding Model and NMR/SPR-Based V
alidation
Surya Narayanaraju Bhupatiraju
On the C
omplexity of the Marginal Satisfiability Problem
4
Adam Joseph Bowman
Appar
atus and Analysis Techniques for Portable,
5
L
ow-Voltage Pulsed Plasma Sources
Jennifer Chan
A
ctivation-In... 阅读全帖
x****6
发帖数: 4339
5
关于这个off target的问题,我觉得最靠谱的思路是 刘大卫的 deCas9-deaminase 融
合。
就是单个核苷酸的点突变。DNA链切都不切
问题点突变共有12中,现在只有酶能干1中,刘大卫在实验室进化出了一种。还有十种。
x****6
发帖数: 4339
6
来自主题: Military版 - 看看造crispr婴儿的这个he jiankui
目前crispr的安全性,有大堆数据证明风险极高。这是为什么,学界现在的研究方向是
开打deCas-deaminase等技术来降低这个风险。
这哥们直接到人上应用,太不负责了。
x****6
发帖数: 4339
7
来自主题: Military版 - he工作的意义
科学和技术的进步,靠的不是钻空子,而是靠真刀实抢的探索和创造。
我主贴里的deCas9-deaminase技术,就是人类在对付遗传疾病征程上的最新成果。已经
比he用的第一代技术要好处许多。
v****a
发帖数: 121
8
来自主题: Biology版 - Papers Help, Thank you
1 The title is: Strong enhancement of recombinant cytosine deaminase
activity in Bifidobacterium longum for tumor-targeting enzyme/prodrug
therapy
The link is: http://www.ncbi.nlm.nih.gov/pubmed/17420581
2 The title is: Tumor-targeted Salmonella as a Novel Anticancer Vector
The link is: http://cancerres.aacrjournals.org/content/57/20/4537.abstract
Please send to c***[email protected]
Thanks.
l**********1
发帖数: 5204
9
try
//creativebiomart.net/description_54358_27.htm
Cat.No.
CABT-30124HM
Product Overview
Hamster monoclonal antibody to Mouse IGF1.
Antigen Description
The protein encoded by this gene is identical to adenosine deaminase
complexing protein-2, and to the T-cell activation antigen CD26. It is an
intrinsic membrane glycoprotein and a serine exopeptidase that cleaves X-
proline dipeptides from the N-terminus of polypeptides.
Clone
SN0000-3G65
Isotype
IgG2
Immunogen
Mouse recombinant IGF1 protein
Hos... 阅读全帖
l**********1
发帖数: 5204
10
原始阶段的
RNA 如选用T 而没用U 的话
真核生物 就不可能选 poly(A)(+) tail 了
由于 poly(A)(+) tail 早在 那以后很快由于
RNA editing within post-transcriptional event 中出现Chaotic/Random/Tight
binding T==A 被淘汰了 或成了SF movie里的allian DNA喽 (possibile)
正好有篇今年的paper
Nat Biotechnol. 2012 Feb 12;30(3):253-
Comprehensive analysis of RNA-Seq data reveals extensive RNA editing in a
human transcriptome.
by Peng Z. et al
Abstract
RNA editing is a post-transcriptional event that recodes hereditary
information. Here we describe a comprehensi... 阅读全帖
l**********1
发帖数: 5204
11
来自主题: Biology版 - What's called somatic mutation?
LZ pls try go to
//www.sanger.ac.uk/genetics/CGP/cosmic/
or Cell article:
by
Nik-Zainal S et al. and Stratton MR (2012)
Mutational processes molding the genomes of 21 breast cancers.
Cell. 149: 979-93.
Abstract
All cancers carry somatic mutations. The patterns of mutation in cancer
genomes reflect the DNA damage and repair processes to which cancer cells
and their precursors have been exposed. To explore these mechanisms further,
we generated catalogs of somatic mutation from 21 breast cancer... 阅读全帖
K**4
发帖数: 1015
12
来自主题: Biology版 - 有没有人科普一下genome editing?
Genome Editing: searching for Deaminase or DNA methylase or Tet1 in PubMed
The TALEN paper listed is about DNA nuclease, for cutting, not editing.
The authors seem to lack an good understanding on DNA modifications, hehe.
E******g
发帖数: 170
13
来自主题: Biology版 - HBV治愈的新曙光
最新一期的SCIENCE报道了一篇通过上调nuclear deaminases来诱导cccDNA降解的方法
来治疗HBV的办法。
IFN-alpha通常会有副作用,但是可以通过其他的通路来解决,如LTbetaR激动剂,来
上调A3B。
n********e
发帖数: 1630
14
来自主题: Biology版 - HBV治愈的新曙光
APOBEC DEAMINASE 不是研究过很久了吗 可以突变cccDNA
v****a
发帖数: 121
15
来自主题: Chemistry版 - Papers Help, Thank you
1 The title is: Strong enhancement of recombinant cytosine deaminase
activity in Bifidobacterium longum for tumor-targeting enzyme/prodrug
therapy
The link is: http://www.ncbi.nlm.nih.gov/pubmed/17420581
2 The title is: Tumor-targeted Salmonella as a Novel Anticancer Vector
The link is: http://cancerres.aacrjournals.org/content/57/20/4537.abstract
Please send to c***[email protected]
Thanks.
w*q
发帖数: 1294
16
来自主题: Chemistry版 - Papers Help, Thank you
Strong enhancement of recombinant cytosine deaminase activity in
Bifidobacterium longum for tumor-targeting enzyme/prodrug therapy
http://www.sendspace.com/file/n9h4tc
w*****s
发帖数: 230
17
可惜还是生化专业,浪费了。我很有可能也是错的,不过这些建议估计父母也没有时间
看。明显病史长,香港没有人出来干得罪其他医生的事情。我不相信香港医生都那么笨。
这么说吧, 医生可能有错误的理由把病给排除了。 如果留在医院几个月没有找到病因
,更大的可能是医生不愿意给诊断而不是不知道。
还有就是基因检测靠不住, 而且里面猫腻更多。 比如技术的resolution, 太小的变异
看不到, 第二就是intron不检查, 。。。等等。。。 不是那么简单, 而且这个领域
的人人品非常垃圾!医生烂到渣!就我在美国的经历,基本就是拖。拖你3年后,也就
是你跟定这个医生,这一个医生拖你3年。如果你总换,你永远拿不到诊断。我看到时
间最长的等了20年。
最后就是给他们建议一本书:inherited metabolic disease, a clinical approach
(by Georg Hoffmann, Johannes Zschocke & William L Nyhan. )
按照这本书ck升高还有的症状:应该是如下原因
(大概22页的一个表)Mitochondrial disord... 阅读全帖
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