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全部话题 - 话题: affinely
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b******y
发帖数: 627
1
My guess is that A protein is probably multivalent, i.e. one A protein can
bind more than on B. Even if one A can only bind one B, GST is a dimer and a
GST-A dimer can bind two B and increase the local concentration of B.
Furthermore, Glutathione bead substantiates the local concentration effect
by binding more than one GST-A dimer in the vicinity of each other. As such,
the self-assembly activity of B is greatly increased and the whole system
including all beads, all GST-A and all B forms a sin... 阅读全帖
g*********5
发帖数: 2533
2
来自主题: Biology版 - 核蛋白的Co-IP的 Protocol
Isolation of nuclei for the co-IP and whole ChIP protocols is based on the
methods of Gendrel et al. (2002, 2005), Johnson et al. (2002), and Nelson et
al. (2006).
METHOD
For extraction and co-IP of nuclear proteins, see Steps 1-39 (Fig. 1). For
the ChIP procedure, see Steps 40-69 (Fig. 2).
Figure 1.
View larger version:
In this page
In a new window
Figure 1.
Flowchart for the timeline and organization for co-IP of nuclear proteins
from Arabidopsis seedlings.
Figure 2.
View larger versio... 阅读全帖
s****9
发帖数: 932
3
Generally, short-live plasma cells are less affinity-matured and do not go
through GC. They are quick sources for antibody neutralization.
Long-Live plasma cells are generated from GC and residue in the BM. They
provide the antibody reservoir in your blood for pathogen neutralization.
Memory B cells take a few days to further differentiation into plasma cells
and cannot replace long live plasma cells.
It is a big questions in the field that which factors determine the
differentiation of shor... 阅读全帖
x********i
发帖数: 905
4
来自主题: Mathematics版 - 2016华人数学家大会Invited Lectures
http://iccm.mcm.ac.cn/dct/page/1
Invited Lectures
Group 1
Fan Qin: Cluster algebras and monoidal categorification
Fang Li: Positivity of acyclic sign-skew-symmetric cluster algebras via
unfolding method and some related topics
Cheng-Chiang Tsai: An attempt for affine Springer theory
Li Cai: The Gross-Zagier formula: arithmetic applications
Ming-Hsuan Kang: Geometric zeta functions on reductive groups over non-
archimedean local fields
Huanchen Bao: Canonical bases arising... 阅读全帖
m**********t
发帖数: 385
5
来自主题: JobMarket版 - Job Openings in Genscript (2011)
以下为该公司最新的岗位需求,请发简历给钱小姐:q*****[email protected]欢迎诸位应聘或推荐身边的朋友,这家公司的待遇还不错,别忘了在邮件里说明信息来源:mitbbs.com或未名人才;
Position: Senior Scientist in New technology
Opening: 2
Location: Nanjing, China
Responsibilities:
1. Technically coordinate all the projects in R&D Dept. Provide valuable
technical input and directions for the department.
2. Supervise the development of new products and technologies to improve the
product pipeline of R&D Dept.
3. Search patents and technical information.
4. Write paten... 阅读全帖
m**********t
发帖数: 385
6
来自主题: JobMarket版 - JD for Technical Account Manager position
有意向的可直接邮件至[email protected]或q*****[email protected] 联系人
:钱小姐,别忘了在邮件里说明信息来源:mitbbs.com或未名人才;
Position: Technical Account Manager:
Opening: 1
Location: US, Piscataway, New Jersey
Job description:
1.Technical Account Manager is the interface between our customers and our
laboratories.
2.Responsible for handling customer inquiries on our products and services
via phone and email.
3.Providing sale quotation and technical support. Managing ongoing projects
and maintaining customer relationships.... 阅读全帖
i***e
发帖数: 9429
7
来自主题: Living版 - 解答空调

For York Affinity 16 SEER, 9.0 HSPF Heat Pump
Efficiency for 2 Ton Model #: YZF02413C
1)with York Affinity Air Hander AVG36C (21" wide)
系统效率: SEER 16 HSPF 9.0
这台Air Handler 估计你无法装 , 是21寸宽度的,如果位置够可以装的话,那将是非
常好,是York 顶级Affinity系列。
估计是给你下面的型号。
2)with York LX Series Air Hander AHE24B (17.5"wide)
系统效率: SEER 15 HSPF 8.5
这台是17.5寸宽度, 出风量在800CFM左右。
3) with York LX Series Air Hander AHE30B (17.5"wide)
系统效率: SEER 15 HSPF 8.5
这台也是17.5寸宽度, 出风量在1000CFM左右。
... 阅读全帖
C*****n
发帖数: 1049
8
来自主题: shopping版 - lenovo price match policy及quote相关
上个月在lenovo美国官网买了个t420s,结果过了半个月价格降了$160左右,和客服
live chat了一下这个情形,结果他们有price match policy,给我退回$160+$10 tax
,鉴于有网友问,特此发个帖让以后要想买lenovo电脑的网友了解了解,也许可以帮你
们省到一点儿钱。
首先lenovo是不主动说他们有price protection的,我也是发现降价了给客服说我要取
消订单,理由很简单,才买一周还没寄出就降价$160,那我还不如取消重买一个(当时
离预计寄出时间还有一周,结果这么一闹第二天就给我寄出来了),客服说他们有
price match,会退给我钱。后来我就研究了一下price match policy。
http://shop.lenovo.com/us/landing_pages/affinity/program
Does Lenovo offer price protection?
? Yes, Lenovo offers a 21 day price guarantee. If a lower price is
offere... 阅读全帖
b****n
发帖数: 8
9
Address:
Email:
Cell phone:
Work phone:
Oct 28, 2013
Department of Homeland Security
USCIS Nebraska Service Center
P.O. Box 87103
Lincoln, NE 68501-7103
I-140 Immigration Visa Petition Under First Preference EB-1
Petitioner/Beneficiary: XX Z., Ph.D.
Category of Petition: Alien of Extraordinary Ability
Classification Sought: 203(b)(1)(A)
Nature of Submission: Original Submission
Dear Immigration Officer,
This letter is respectfully submitted in s... 阅读全帖
b****n
发帖数: 8
10
Address:
Email:
Cell phone:
Work phone:
Oct 28, 2013
Department of Homeland Security
USCIS Nebraska Service Center
P.O. Box 87103
Lincoln, NE 68501-7103
I-140 Immigration Visa Petition Under First Preference EB-1
Petitioner/Beneficiary: XX Z., Ph.D.
Category of Petition: Alien of Extraordinary Ability
Classification Sought: 203(b)(1)(A)
Nature of Submission: Original Submission
Dear Immigration Officer,
This letter is respectfully submitted in s... 阅读全帖
S*****a
发帖数: 63
11
【 以下文字转载自 Biology 讨论区 】
发信人: Somalia (Anti-Pirates), 信区: Biology
标 题: Yeast Display/Phage Display Scientist position available in Woburn MA
发信站: BBS 未名空间站 (Fri Jul 7 09:38:52 2017, 美东)
We are seeking an experienced and highly motivated Scientist with strong
hands-on
experience in antibody display (phage/yeast) to support discovery research
projects
by screening to identify lead candidate therapeutic antibodies, as well as
engineering
molecules for improved function. The successful candidate wi... 阅读全帖
o******l
发帖数: 108
12
来自主题: Hardware版 - thinkpad 45%off
https://shop.lenovo.com/SEUILibrary/controller/e/perksoffer/
StdAffinityPortal/en_US/Lenovo:EnterStdAffinity?affinity=perksoffer&sexpired
=1&requested-affinity-cmd=StdAffinity:Home?affinity=perksoffer&home=
perksoffer
密码:NJ*PERKSEPP
s******s
发帖数: 13035
13
大家参考一下。其实我是没有精力做的,有人成功的话给我acknowledge就够了。
找你要研究的基因的BAC,然后再E.Coli里面通过homologous recombination在
有兴趣的片段(当然要比较长的)两头加rare的RE site或者ZFN一类的,随便折
腾;里面再加点strong的aptamer, 或者变态点,加一堆lacO.
这玩意儿做成转基因IPS或者ES,好处是可以多copy, 十个八个没问题吧,更多
应该也行吧? 然后做成转基因小鼠,取你有兴趣的特定组织,或者细胞培养,
做ChIP的前面部分就是fix,洗掉细胞质,然后instead of sonication, 用RE
一顿乱切,配合aptamer purification. 你可以先size select然后affinity,
或者先affinity然后size select, 或者几种不同的方法series affinity,
anyway, 拿到东西decrosslinking上ms spec, 当然前面crosslink的时候不能
用glycine quench.
这个思路欢迎大家补充。
b******y
发帖数: 627
14
In my opinion, the required protein concentrations in co-IP (using
recombinant or semi-pure proteins) experiments are dictated by the
sensitivity of your detection method and the binding affinity. There are no
gold standard. Generally, you have to try around.
I am suggesting some reasonable start here. For high affinity binding events
(tens of nM or tighter), a few micrograms of protein are sufficient. If you
load everything into one or two lanes, coomassie blue staining should pick
it up easily... 阅读全帖
l**********1
发帖数: 5204
15
2k USD 一支
SP1003 - Affinity Purified anti-Phosphopeptide Polyclonal Antibody - Goat
full-scale purification package - Introductory offer - $1950
如没特殊要求的话
至于特殊要求, 楼主在美国的话 直接打免费电话 到加州的人家办公室 问下吧
US office
Everest Biotech c/o Abcore
405 Maple Street, Suite A106
Ramona
CA 92065
USA
Inquiries: info (at) everestbiotech.com
Sales: usasales (at) everestbiotech.com
Technical support: support (at) everestbiotech.com
Tel: 888-320-4628 (toll free)
(from 8.00 PST to 16.30 PST)
Fax: 888-841-9041
//everestbiote... 阅读全帖
I********e
发帖数: 131
16
NJ大药厂,Job description见下,perfer Ph.D, master也考虑.有兴趣的话站内联系.
Scientist - Process Engineering Job Description:
The Scientist will involve conducting monoclonal antibody purification
process development to support the development, optimization and
manufacturing of biologics covering different therapeutic areas. Scope of
work may include, but are not limited to, protein purification, purification
process development, novel purification technologies, data analysis and
project reporting. The candidate i... 阅读全帖
s******c
发帖数: 331
17
这个就是太乐观的看法,作为一个搞结构的,稍微跟pharmacology沾点边的半外行,说
一些粗浅的理解。
首先,药物分子水平的机理太复杂,结构能看的就是,药物小分子和一种蛋白在某个位
点上的相互作用有哪些。就这些信息,仍然受很多因素的影响,很多时候都不是致命一
击,比如小分子affinity低,占有率低,或结构分辨率低,就会有很多问题,如果小分
子太小,fit电子密度可能性有很多种,或小分子太大,不是所有的部分都有清晰的密
度,这个时候就很难讲,在这上面出错的结构有很多。结构不能揭示的药物分子机理就
太多了,药物怎么代谢的(往往很多药物代谢底物才是真正结合靶点的小分子),怎么
进细胞或怎么上膜,即便是跟靶蛋白,小分子进入和离开靶蛋白的kinetics,on rate
和off rate,进入binding site的整个process(first binding site,secondary
binding site etc)都是静态结构不能看到的,而这些信息很多时候才是重要的,比如
对于很多药物,其进入binding site的通道或过程往往决定其特异性,而不是结构看到
的bind... 阅读全帖
s******c
发帖数: 331
18
这个,非磷酸化receptor都和arrestin有robust的作用,那G protein怎么办?多数的
GPCR的C terminus都是结合arrestin重要的位点,磷酸化与否是arrestin结合的关键因
素,虽然有些例外。receptor和arrestin结合不稳定并不是指affinity,而是整个过程
非常的dynamic,传统的观念,也是这篇文章的point,就是arrestin结合C terminus,
然后再构象变化结合到G protein结合位点上。但实际上,很多receptor结合arrestin
但是不internalize,或者结合arrestin但是没有arrestin signaling,这些都不是这
个简单的模型可以回答的,实际结合过程可能更为复杂,不是一个单一或均一affinity
的状态,甚至还有可能需要其它蛋白的帮助。如果真affinity很高,这篇文章里也不会
把他们fuse在一起。另外lipid肯定是有作用的,很多细胞外研究他们相互作用的都要
把receptor构建到lipid bilayer的环境里,可能我孤陋寡闻,但是我还没见过直接在
d... 阅读全帖

发帖数: 1
19
No matter how the kon/koff ratio favors the complex formation, a non-
covalent binding will definitely go through a on/off equilibrium. The
Antibody-
antigen interaction may be the highest affinity (0.1-1 nM of Kd) complex
that people have ever studied in biological systems, however the equilibrium
does exist in the Ab-
Ag complex. That's how SPR analysis is working to assess the affinity.
I do not believe that non-covalent complex will last forever when the
effective
concentration of substance ... 阅读全帖
f***x
发帖数: 1524
20
来自主题: Biology版 - 请问一下yeast display的前景
hybridomas筛的是🐭源抗体,需要人源化。前期需要免疫动物。immune
response 是个问题。优点是有in Vivo quality control,一般不再需要affinity
Maturation and solubility/stability optimization.
相比较,display 可以从人工库筛,库可以很大(10e7-10e11),用时短,不用考虑免疫
问题。但是往往需要affinity maturation.
Phage display 筛fragment.
yeast display可以 筛full length antibody.
方法上,phage display 简单。主要是Elisa and affinity binding/washing.
yeast display 用到FACS,可以对筛选有很好的控制,同时筛Antibody expression/
stability 和antibody-antigen binding.
z*t
发帖数: 863
21
来自主题: Biology版 - 请问一下yeast display的前景
受教了!您怎么看alpaca里搞得nanobody?

:hybridomas筛的是🐭源抗体,需要人源化。前期需要免疫动物。immune
:response 是个问题。优点是有in Vivo quality control,一般不再需要affinity
:Maturation and solubility/stability optimization.
:相比较,display 可以从人工库筛,库可以很大(10e7-10e11),用时短,不用考虑免
疫问题。但是往往需要affinity maturation.
:Phage display 筛fragment.
:yeast display可以 筛full length antibody.
:方法上,phage display 简单。主要是Elisa and affinity binding/washing.
:yeast display 用到FACS,可以对筛选有很好的控制,同时筛Antibody expression/
:stability 和antibody-antigen binding.
S*****a
发帖数: 63
22
We are seeking an experienced and highly motivated Scientist with strong
hands-on
experience in antibody display (phage/yeast) to support discovery research
projects
by screening to identify lead candidate therapeutic antibodies, as well as
engineering
molecules for improved function. The successful candidate will be self-
motivated, enthusiastic, hard-working, detail-oriented, and able to work in
a fast-paced environment.
Responsibilities:
• Drive efforts to isolate, clone, build, and ... 阅读全帖
L*m
发帖数: 235
23
近十年JAMS上的华人作者,JAMS上的文章相对更多,搜的没那么仔细,有可能不完全。
大家也看看有没有漏的
2015
Kähler-Einstein metrics on Fano manifolds. I: Approximation of metrics
with cone singularities
Xiuxiong Chen, Simon Donaldson and Song Sun.
Kähler-Einstein metrics on Fano manifolds. II: Limits with cone angle
less than 2π
Xiuxiong Chen, Simon Donaldson and Song Sun.
Kähler-Einstein metrics on Fano manifolds. III: Limits as cone angle
approaches 2π and completion of the main proof
Xiuxiong Chen, Simon Donaldson... 阅读全帖
I********e
发帖数: 131
24
【 以下文字转载自 Biology 讨论区 】
发信人: Islandtime (歇着呢), 信区: Biology
标 题: Contractor postion - Protein purifiecation process development
发信站: BBS 未名空间站 (Wed May 21 13:59:52 2014, 美东)
NJ大药厂,Job description见下,perfer Ph.D, master也考虑.有兴趣的话站内联系.
Scientist - Process Engineering Job Description:
The Scientist will involve conducting monoclonal antibody purification
process development to support the development, optimization and
manufacturing of biologics covering different therapeutic areas. Scope of
work may ... 阅读全帖
R********n
发帖数: 3601
25
【 以下文字转载自 Military 讨论区 】
发信人: youdu (青青子衿), 信区: Military
标 题: 蒙古举行国际匈奴后裔大聚会
发信站: BBS 未名空间站 (Sun May 25 11:10:49 2014, 美东)
蒙古举行国际匈奴后裔大聚会
不久以前,认为自己是匈奴后裔的一些人在蒙古举行了国际匈奴后裔大会。库里尔台,
蒙古语为Khuraldai,突厥语为Kurultai,匈牙利语为Kurultaj,意思是“集会”。
今天说阿尔泰语和乌拉尔语的人们,被称为“图兰(Turan)”,他们都是匈奴的后裔
,包括今天的蒙古人、满洲人、突厥人、日本人、匈牙利人等。
东京国立博物馆里关于日本人的起源,就认为自己的祖先就是来自大陆草原的匈奴 。
蒙古国北部额金河(Egiin Gol)发现2000年前的匈奴古墓,根据对古墓中219具尸体的
DNA检测,匈奴的基因成分与现代蒙古人和日本人的基因高度匹配,以蒙古人种为主,
另有11%的欧洲人成分。
无论匈奴、鲜卑、柔然、突厥原本都不是草原民族的概念,而是草原中人们的政治集
团的概念,他们本身在语言、习俗和基因上都是相通并且一脉... 阅读全帖
n*****2
发帖数: 358
26
【 以下文字转载自 WaterWorld 讨论区 】
发信人: freeangle (华夏后裔), 信区: WaterWorld
标 题: 方舟子美国专利真相调查(ZT)
发信站: BBS 未名空间站 (Mon Feb 20 00:36:48 2012, 美东)
本帖最后由 jshi6210 于 2010-7-13 11:58 编辑
方舟子美国专利真相调查(ZT)
万维读者网络>教育与学术
美国永久居民、所谓“打假斗士”方舟子常常在中美之间飞来飞去,他经营的美国网站
新语丝,据说每天点击五六十万。他何以为生、维持网站运营,是长期以来大家比较感
兴趣的一个问题。今天因为甘怀远同学的揭露,进行了一番饶有趣味的搜索。
1. 方舟子的博士后在索尔克生物研究院进行 方舟子,本名方是民,1967年9月生于
福建云霄县。1985年考入中国科技大学生物系。1990年本科毕业后赴美留学。1995年获
美国密歇根州立(Michigan State)大学生物化学博士学位,先后在罗切斯特(
Rochester)大学生物系、索尔克(Salk)生物研究院做博士后 …
scitec... 阅读全帖
d******a
发帖数: 32122
27
☆─────────────────────────────────────☆
cynic (cynic@mitbbs 1998->2010->?) 于 (Mon Feb 27 19:45:05 2012, 美东) 提到:
她到外地读的高中,还是省重点,但是在一个城市远郊的地方。高一下学期被社会上混
混轮奸,然后就精神失常了。她父母现在都早退休了,身体也不怎么好。很为这个女儿
担心。好在还有几个兄弟姐妹,因此父母不至于如独生子女父母那么担心万一自己死了
这个孩子怎么办。那几个小混混也不知道怎么判的。没有敢问过。
上次我回国,遇到她家人,正在给她办理养老保险。
比我大几届的一个男生,在我们那里被本地小混混打得厉害,伤到头了,退学休息了1
年多。后来有点呆,但是没有太严重。
有一段时间社会治安非常差,我们校长那个时候在大门口和社会的混混打架,保护学生
。痞子就在学校外面等着学生放学去断人。
我高一的时候也被一帮喝醉的痞子给群殴。我本着毛主席断其一指的策略,抗着被揍,
专打一个。后来见机就跑,凉鞋跑掉一个。
☆────────────────────────────────────... 阅读全帖
b******i
发帖数: 4776
28
来自主题: Military版 - Wooing China’s Big Spenders With Luxury
http://www.nytimes.com/2012/04/15/business/global/american-bran
Over five days in January, a group of visitors to New York was treated to a
private concert with the pianist Lang Lang at the Montblanc store, cocktails
and a fashion show attended by the designers Oscar de la Renta and Diane
Von Furstenberg, and a tour of Estée Lauder’s original office.
The pianist Lang Lang in a Mont Blanc catalog, which is available in
Mandarin and Cantonese.
They were not celebrities. They were not government of... 阅读全帖
y***u
发帖数: 7039
29
来自主题: Military版 - 蒙古举行国际匈奴后裔大聚会
蒙古举行国际匈奴后裔大聚会
不久以前,认为自己是匈奴后裔的一些人在蒙古举行了国际匈奴后裔大会。库里尔台,
蒙古语为Khuraldai,突厥语为Kurultai,匈牙利语为Kurultaj,意思是“集会”。
今天说阿尔泰语和乌拉尔语的人们,被称为“图兰(Turan)”,他们都是匈奴的后裔
,包括今天的蒙古人、满洲人、突厥人、日本人、匈牙利人等。
东京国立博物馆里关于日本人的起源,就认为自己的祖先就是来自大陆草原的匈奴 。
蒙古国北部额金河(Egiin Gol)发现2000年前的匈奴古墓,根据对古墓中219具尸体的
DNA检测,匈奴的基因成分与现代蒙古人和日本人的基因高度匹配,以蒙古人种为主,
另有11%的欧洲人成分。
无论匈奴、鲜卑、柔然、突厥原本都不是草原民族的概念,而是草原中人们的政治集
团的概念,他们本身在语言、习俗和基因上都是相通并且一脉相承的。
中国人常常强调“文化”和“认同感”,而这些匈奴后裔对祖先的认同,却是真正
超越文化、超越种族的。
萨满祭祀,萨满文化今天仍然存在于蒙古国与土耳其。
蒙古代表,匈奴本部的后裔,所谓游牧民族,历史上这片土地的人几乎全部迁徙出
去,他们去到俄... 阅读全帖
w******9
发帖数: 1604
30
Submitted
Missel AR, Bai M, Klug WS, Levine AJ, The Affine to Non-affine Transition in
Anisotropic Semiflexible Networks.
Roos WH, Gibbons MM, Arkhipov A, Uetrecht C, Watts NR, Wingfield PT, Steven
AC, Heck AJR, Schulten K, Klug WS, Wuite GJL, Squeezing protein shells: how
continuum elastic models, moleculardynamics simulations and experiments
coalesce at the nanoscale.
Published
Morozov AY, Rudnick J, Bruinsma RF and Klug WS, Assembly and Disassembly of
Deltahedral Viral Shells. In: Stockley, P... 阅读全帖
b**********5
发帖数: 7881
31
【 以下文字转载自 JobHunting 讨论区 】
发信人: beefcurtain5 (beefcurtain5), 信区: JobHunting
标 题: Elite K-8 school teaches white students they’re born racist
发信站: BBS 未名空间站 (Fri Jul 1 17:17:34 2016, 美东)
An elite Manhattan school is teaching white students as young as 6 that they
’re born racist and should feel guilty benefiting from “white privilege,”
while heaping praise and cupcakes on their black peers.
Administrators at the Bank Street School for Children on the Upper West Side
claim it’s a novel approach ... 阅读全帖
O**W
发帖数: 58
32
翻译貌似不是完全一句一句对译
原文应该是这一段里面后半段
The phenylalanine (F) at residue 486 in the SARS-CoV-2 S protein corresponds
to L472 in the SARS-CoV Urbani strain. Notably, in SARS-CoV cell culture
experiments the L472 mutates to phenylalanine (L472F)5, which is predicted
to be optimal for binding of the SARS-CoV RBD to the human ACE2 receptor6.
However, a phenylalanine in this position is also present in several SARS-
like CoVs from bats (Figure 1a). While these analyses suggest that SARS-CoV-
2 may be capable of... 阅读全帖

发帖数: 1
33
“While the analyses above suggest that SARS-CoV-2 may bind human ACE2 with
high affinity, computational analyses predict that the interaction is not
ideal7 and that the RBD sequence is different from those shown in SARS-CoV
to be optimal for receptor binding7,11. Thus, the high-affinity binding of
the SARS-CoV-2 spike protein to human ACE2 is most likely the result of
natural selection on a human or human-like ACE2 that permits another optimal
binding solution to arise. This is strong evidence t... 阅读全帖

发帖数: 1
34
小将埋怨native speakers的英语不好?哈哈哈哈


: “While the analyses above suggest that SARS-CoV-2 may bind human ACE2
with

: high affinity, computational analyses predict that the interaction is
not

: ideal7 and that the RBD sequence is different from those shown in SARS
-CoV

: to be optimal for receptor binding7,11. Thus, the high-affinity
binding of

: the SARS-CoV-2 spike protein to human ACE2 is most likely the result
of

: natural selection on a human or human-like ACE2 that permits ... 阅读全帖
d*********o
发帖数: 6388
35
http://science.caixin.com/2020-03-20/101531574.html
【财新网】(记者 杨睿)新冠病毒在繁殖倍增的过程中若发生了基因突变,会否影响
其感染能力?3月17日,论文预印平台bioRxiv上发表了一篇与新冠病毒的受体结合结构
域(RBD)突变有关的研究,称突变增强了新冠病毒表面刺突蛋白的结构稳定性,突变
病毒株与受体结合的亲和力显著增强。论文作者强调,病毒的传染性还受其他因素的影
响,尽管如此,传染性提高应该是大概率事件。
这篇题为《从流行的新冠病毒序列中发现的RBD突变会增强刺突蛋白结构稳定性及
传染性》的论文,由南方医科大学公共卫生学院教授张其威、暨南大学生命与健康工程
研究院张弓共同担任通讯作者。研究团队从公共数据库(NCBI GenBank和GISAID等)下
载了244条新冠病毒毒株的基因序列全长,并筛选出S蛋白及其RBD区域发生突变的序列
进行分析。从研究者绘制的毒株序列分布地图来看,现阶段这244个新冠病毒毒株中绝
大多数毒株的S蛋白受体结合结构域(RBD)没有发生突变。只有10条序列在RBD区域存
在氨基酸突变,它们分别采集自... 阅读全帖
s****k
发帖数: 1384
36
来自主题: Classified版 - electric guitar for sale in Atlanta (转载)
【 以下文字转载自 MusicPlayer 讨论区 】
发信人: solidk (很伤心), 信区: MusicPlayer
标 题: electric guitar for sale in Atlanta
发信站: BBS 未名空间站 (Sat Feb 19 00:01:19 2011, 美东)
x*******[email protected]
(don't reply to this ID)
Item: Squier Affinity Series Stratocaster Electric
Guitar + cable
Color: Metallic Blue Rosewood Fretboard
SN: IC050301808
Year: 2006
Reason for sale: Almost never play since I suck at it and prefer
playing classical and acoustic more
Condition: ... 阅读全帖
s**m
发帖数: 1564
37
【 以下文字转载自 shopping 讨论区 】
发信人: slim (小时候胖), 信区: shopping
标 题: Re: Thinkpad T420 $500; X220 $555 【hot! smoking~~】
发信站: BBS 未名空间站 (Thu Jun 16 16:01:50 2011, 美东)
for T420,
which power adapter to choose? both are same price.
Country Pack North America with Line cord & 90W AC adapter
Country Pack North America with Line cord & 65W AC adapter
which wifi to choose? both same price
ThinkPad b/g/n
Intel Centrino Wireless-N 1000
thanks
http://shoplenovo.i2.com/SEUILibrary/controller/e/barnesnoblego
inityP... 阅读全帖
j*****e
发帖数: 333
38
"Cited by 1180"
TRANSFORM ANALYSIS AND ASSET PRICING FOR AFFINE JUMP-DIFFUSIONS IN ...
- Feb 25
File Format: PDF/Adobe Acrobat - Quick View
by D DUFFIE - 2000 - Cited by 1180 - Related articles
68, No. 6 November, 2000 , 13431376. TRANSFORM ANALYSIS AND ASSET PRICING.
FOR AFFINE JUMP-DIFFUSIONS. BY DARRELL DUFFIE, JUN PAN, AND KENNETH
SINGLETON ...
citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.139.6955...
你觉得这篇文章不是金融?看来Stanford这两个大牛asset pricing教授听了会很郁闷,呵呵

Finance
n****b
发帖数: 744
39
来自主题: Family版 - 聊聊娶犹太女人做老婆
Chosen Women Choosing Chinese Men
A tradition of love?
by Jocelyn Eikenburg
Are you Jewish?" I am asked. This is not new to me. I hear this all the time
because my last name ends in "burg," a common Jewish suffix.
So I wasn't surprised when I heard it from Arnold, a new friend of mine from
the local gym in Cleveland Heights, Ohio. He knew my last name because I
had handed him my business card weeks before. And he was, after all, as bold
as the espresso in the coffee shop where I met him.
When he... 阅读全帖
s****k
发帖数: 1384
40
来自主题: FleaMarket版 - electric guitar for sale in Atlanta (转载)
【 以下文字转载自 MusicPlayer 讨论区 】
发信人: solidk (很伤心), 信区: MusicPlayer
标 题: electric guitar for sale in Atlanta
发信站: BBS 未名空间站 (Sat Feb 19 00:01:19 2011, 美东)
x*******[email protected]
(don't reply to this ID)
Item: Squier Affinity Series Stratocaster Electric
Guitar + cable
Color: Metallic Blue Rosewood Fretboard
SN: IC050301808
Year: 2006
Reason for sale: Almost never play since I suck at it and prefer
playing classical and acoustic more
Condition: ... 阅读全帖
b**********5
发帖数: 7881
41
An elite Manhattan school is teaching white students as young as 6 that they
’re born racist and should feel guilty benefiting from “white privilege,”
while heaping praise and cupcakes on their black peers.
Administrators at the Bank Street School for Children on the Upper West Side
claim it’s a novel approach to fighting discrimination, and that several
other private New York schools are doing it, but even liberal parents aren’
t buying it.
A slide from the Bank School shows the different goals... 阅读全帖
s*****a
发帖数: 349
42
来自主题: Living版 - 哪一种yoke furnace值得换呢?
家里的heat exchanger被查出来crack了,号称会有一氧化碳漏入家里。
检修的人员建议换furnace。家里的已经有10年了。
看了他们给的brochure,比较糊涂,不知道换哪一种的比较好。。。
1. [1999+tax]Latitude series TG8S/TGLS Model ... 80% AFUE
2. [4656+tax]LX Series TM9V Model (LX 2-stage). 96% AFUE... (about 300$ less
than #5)

3. LX Series TM9X Model (LX 1-stage)....... 95.5% AFUE
4. [3299+tax]Affinity Series YPLC Model ... 80% AFUE
5. [5000+tax]Affinity Series YP9C Model ... up to 98% AFUE .. best but most
expensive.
上来问问大家的经验。。。。
t*********u
发帖数: 26311
43
来自主题: Money版 - Radpad交房租
1st Advantage FCU
1st Financial FCU
1st United CU
A+ Federal Credit Union
Achieva Credit Union
ACU of Texas
Advia Credit Union
Affinity Federal Credit Union
Affinity Plus Federal Credit Union
Alaska Airlines/Horizon Air Employees FCU
Alcoa Tenn Federal Credit Union
Alliant Credit Union
Ally Bank
Alma Bank
Alpine Credit Union
Alternatives federal credit union
Altra Federal Credit Union
Altura Credit Union
Amalgamated Bank of Chicago
Amarillo National Bank
Amegy Bank
America First Federal Credit U... 阅读全帖
g*******e
发帖数: 64
44
来自主题: NextGeneration版 - 向备受堵奶困扰的mm超级强烈推荐!!
感谢楼主分享这个方法,尤其是这个原理,反正我原来不知道。
另外,shuangseyun你堵奶都到了乳腺炎的地步了,卵磷脂肯定没用了,毕竟是营养品
,不是药。
Lecithin has been recommended to combat recurrent plugged ducts. The usual
recommended dosage for recurrent plugged ducts is 3600-4800 mg lecithin per
day, or 1 capsule (1200 milligram) 3-4 times per day. After a week or two
with no blockage, mom can reduce the dosage by one capsule. If there is no
blockage within another 2 weeks she can reduce it again by one. Mom may need
to continue taking 1-2 capsules per day if s... 阅读全帖
y*****5
发帖数: 614
45
来自主题: NextGeneration版 - United Healthcare breast pump
Genadyne (Lucina) - 我电话ORDER- lucinacare.com
Melodi Advanced Breast Pump Hospital level
This pump is only available if your baby has been admitted to the NICU or
diagnosed with any of the following feeding anomalies: tongue tie, cleft
palate or lip, or Down Syndrome. It is imperative to have proper diagnosis
code on the prescription for insurances to cover this pump.
这款只在baby入NICU或者诊断有 tongue tie, cleft palate or lip, or Down
Syndrome时可以order。 要求prescription上含有NICU或diagnosis code时才可以
否者提供给UHC学... 阅读全帖
y*****o
发帖数: 265
46
各位宝爸宝妈,以下是我好朋友的亲身经历。不知道大家有没有什么好建议?非常感谢!
---------------------------------------------
保修仅负责检查!香港荷花的奇葩保修条款!
我是一名深圳的宝妈,自从怀了宝宝以后,和很多妈妈一样总想给宝宝最好的,加上深
港又方便,很多宝宝用品都在香港购买。以为自称有购物天堂的香港,购物品质和服务
有保证,谁知道第一次遇到售后保修就让我大跌眼镜!
香港荷花母婴中心(Eugene baby)是香港比较大的母婴综合店,在香港有8家分店。去
年8月份,我们在旺角东新世纪广场荷花母婴中心买了一部Britax affinity婴儿车,购
买价格5175港币。购买时,婴儿车除了整车和配件外,只有一本厚厚的使用说明书,没
有保修卡。因为觉的婴儿车是消耗品,而且这么大的国际品牌,一般不会有质量问题,
当时又恰逢荷花bb展人很多,匆忙之下没有留意到这个问题。
我宝宝是2013年10月底出生的,现在7个多月18斤。除去坐月子不出门的时间,目前婴
儿车使用也就仅仅半年。Affinity是双向的,上面整个座位是可以取下来,座位和车架
子的衔... 阅读全帖
l*****k
发帖数: 1059
47
来自主题: Parenting版 - 数据贴
只提供数据。无论点。
Private university: Harvard.
US demographics [1] => Admitted by Harvard in 2010 [2], Affinity
White: 63.7% => 57.1%, 0.89
Black: 12.2% => 11.3%, 0.92
Latino: 16.3% => 10.3%, 0.63
Asian: 4.9% => 18.2%, 3.71
Native: 0.9% => 3.1%, 3.44
Public university: UC.
California demographics [3] => Admitted by UC in 2012 [4], affinity
White: 40.1% => 30.6%, 0.76
Black: 6.2% => 4.2%, 0.67
Latino: 37.6% => 23.3%, 0.62
Asian: 13.0% => 35.4%, 2.72
Native: ... 阅读全帖
s**m
发帖数: 1564
48
for T420,
which power adapter to choose? both are same price.
Country Pack North America with Line cord & 90W AC adapter
Country Pack North America with Line cord & 65W AC adapter
which wifi to choose? both same price
ThinkPad b/g/n
Intel Centrino Wireless-N 1000
thanks

http://shoplenovo.i2.com/SEUILibrary/controller/e/barnesnoblego
inityPortal/en_US/Lenovo:EnterStdAffinity?affinity=barnesnoblegold
http://shoplenovo.i2.com/SEUILibrary/controller/e/barnesnoblego
inityPortal/en_US/Lenovo:EnterStd... 阅读全帖
c*********o
发帖数: 1734
49
Email me at c*********[email protected]
With your name, brief background, email address.
Important: You need to register as a reviewer for European Journal of
Pharmaceutical Sciences
I will recommend first three who contact me before tonight.
Title: Hyaluronan as drug carrier. The in vitro efficacy and selectivity of
Hyaluronan-Doxorubicin complexes to affect the viability of overexpressing
CD44 receptor cells.
ABSTRACT:
We report Doxorubicin ionic complexes with hyaluronic acid (HiH-Dx) or its
sodiu... 阅读全帖
s****k
发帖数: 1384
50
【 以下文字转载自 MusicPlayer 讨论区 】
发信人: solidk (很伤心), 信区: MusicPlayer
标 题: electric guitar for sale in Atlanta
发信站: BBS 未名空间站 (Sat Feb 19 00:01:19 2011, 美东)
x*******[email protected]
(don't reply to this ID)
Item: Squier Affinity Series Stratocaster Electric
Guitar + cable
Color: Metallic Blue Rosewood Fretboard
SN: IC050301808
Year: 2006
Reason for sale: Almost never play since I suck at it and prefer
playing classical and acoustic more
Condition: ... 阅读全帖
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