forum.wfido.ru  

Вернуться   forum.wfido.ru > Прочие эхи > RU.BIOLOGY

Ответ
 
Опции темы Опции просмотра
  #1  
Старый 04.10.2017, 16:00
alexander koryagin
Guest
 
Сообщений: n/a
По умолчанию (no subject)

alexander koryagin написал(а) к All в Oct 17 15:32:35 по местному времени:

Нi, all!

Новая технология позволяет наблюдать работу биомолекулярных процессов.

-----Beginning of the citation-----
Nobel prize awarded for imaging molecules

[A bacterial "motor" as seen with cryo-electron microscopy]

The 2017 Nobel Prize in chemistry has been awarded to three scientists
for improving images made of biological molecules.

Jacques Dubochet, Joachim Frank and Richard Нenderson will share the
nine million kronor (831,000) prize.

They were named at a press conference in Stockholm, Sweden.

They developed a technique called cryo-electron microscopy (cryo-EM),
which simplifies the process for looking at the machinery of life.

The process makes it possible for life's molecular building blocks to be
captured mid-movement and allowed scientists to visualise processes that
had never before been seen.

Speaking to journalists over a telephone line, Prof Frank said the
practical uses for the technique were "immense".

And the Nobel committee said the work had "moved biochemistry into a new
era".

Committee chair Sara Snogerup Linse explained: "Soon, there are no more
secrets, now, we can see the intricate details of the biomolecules in
every corner of our cells and every drop of our body fluids.

"We can understand how they are built and how they act and how they work
together in large communities. We are facing a revolution in biochemistry."

Cryo-electron microscopy has been used to capture images of Salmonella's
"injection needle" for attacking cells, proteins involved in antibiotic
resistance and the molecular structures governing circadian rhythm - the
subject of this year's medicine and physiology Nobel.

When researchers began to suspect that the Zika virus was behind the
microcephaly seen in newborns in Brazil, they turned to cry-EM to
visualise the virus. Over a few months, 3-D images of the virus at
atomic resolution were generated and researchers could start searching
for potential targets for drugs.

Joachim Frank, from Germany, made the microscope technology more easy to
apply in a general setting by processing images of the molecules in such
a way that fuzzy two-dimensional images were turned into sharp, 3-D
structures.

Swiss-born Jacques Dubochet managed to cool water so rapidly that it
solidified around a biological sample, allowing its natural shape to be
preserved.

Later, Edinburgh-born Richard Нenderson succeeded in presenting the
structure of a bacterial molecule at atomic resolution - moving the
technique on still further.

The president of the American Chemical Society (ACS), Allison A
Campbell, commented: "This discovery is like the Google Earth for
molecules in that it takes us down to the fine detail of atoms within
proteins.

"Understanding proteins in their native state is important to every
field of science as they are in every living thing. A picture truly is
worth a thousand words, and the laureates' discoveries are invaluable to
our understanding of life and the development of new therapeutics."

Richard Нenderson is the 15th Nobel laureate to work at the Medical
Research Council (MRC) Laboratory of Molecular Biology in Cambridge.

http://www.bbc.com/news/science-environment-41495621
----- The end of the citation -----


Bye, all!
Alexander Koryagin


--- FIDOGATE 5.1.7ds
Ответить с цитированием
Ответ

Опции темы
Опции просмотра

Ваши права в разделе
Вы не можете создавать новые темы
Вы не можете отвечать в темах
Вы не можете прикреплять вложения
Вы не можете редактировать свои сообщения

BB коды Вкл.
Смайлы Вкл.
[IMG] код Вкл.
HTML код Выкл.

Быстрый переход


Текущее время: 12:23. Часовой пояс GMT +4.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc. Перевод: zCarot