Navigation Links
The laws of attraction: Making magnetic yeast
Date:2/28/2012

The ability to detect and respond to magnetic fields is not usually associated with living things. Yet some organisms, including some bacteria and various migratory animals, do respond to magnetic fields. In migratory animals like fish, birds, and turtles, this behavior involves small magnetic particles in the nervous system. However, how these particles form and what they are actually doing is not fully understood.

In a new study, published February 28 in the online, open-access journal PLoS Biology, Keiji Nishida and Pamela Silver of Harvard Medical School take a major step forward in understanding these processes by making yeast magnetic and then studying how this magnetization is regulated.

Dr. Silver's lab uses 'synthetic biology' to generate organisms that do things that they don't usually do; for example, manipulating bacteria to produce fuel. In this paper, they make yeastan otherwise non-magnetic organismmagnetic.

"Magnetism exists throughout nature," explained Dr. Silver. "In particular there are magnetic bacteria and we wonder how these might have evolved." In addition, human nerve cells may also contain magnetic particles; iron deposits are seen in neurological disorders such as Alzheimer's. Yeast are a simpler system and more readily amenable to genetic manipulation, so making them magnetic also offered the opportunity to investigate the requirements for magnetization and how it is regulatedwhich not only provides significant new insights into how magnetization functions and is regulated in this system, but might also offer insights into how these particles form and what they are doing in diseases like Alzheimer's.

The researchers induced magnetization by first adding iron to the yeast cells' growth medium and then introducing the human ferritin proteins, which form a shell around iron and prevent it from being stored elsewhere in the cell. Ordinarily, yeast cells use an iron transporter to move excess i
'/>"/>

Contact: Bryan Ghosh
bghosh@plos.org
44-122-344-2837
Public Library of Science
Source:Eurekalert

Page: 1 2 3

Related biology technology :

1. Making droplets drop faster
2. Genomic Health Presents Results From First Clinical Decision Making Study of Oncotype DX® Colon Cancer at the 2012 Gastrointestinal Cancers Symposium
3. Decades-old conclusion about energy-making pathway of cyanobacteria is corrected
4. IndiaMART.com to Step Up B2B Matchmaking at Global Trade Events
5. Making blood-sucking deadly for mosquitoes
6. Bayer CropScience Releases Video About Making Science Make Sense Program At Durham Performance Learning Center
7. NASA is making hot, way cool
8. Penn physicists develop scalable method for making graphene
9. Thought Leaders in Europe and US Address Challenges to Making Rare Diseases a Global Public Health Priority
10. Making a point
11. Helix BioPharma Completes Definitive GLP Toxicology Studies With L-DOS47 and is Making Final Preparations for its Planned Phase I/II Clinical Study IND/CTA Submissions
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/22/2014)... Manchester have generated a new star-shaped molecule made up of ... ever created. , Known as a ,Star of ... over a quarter of a century and the team,s findings ... , Consisting of two molecular triangles, entwined about each other ... tiny each triangle is 114 atoms in length around ...
(Date:9/22/2014)... YORK , Sept. 22, 2014 US ... US demand for specialty biocides is forecast to rise ... In volume terms, demand is projected to increase 1.3 ... same period. A strong rebound in construction expenditures will ... paint and coatings markets, while growth in consumer spending ...
(Date:9/22/2014)... September 22, 2014 Invisible Sentinel ... for the food and beverage industries, announced today ... distributed under a non-exclusive agreement by Enartis, a ... , Enartis, an Esseco Group company headquartered in ... in California and other global markets for their ...
(Date:9/22/2014)... LONDON , September 22, 2014 ... ended on a mixed note as the Dow Jones ... NASDAQ Composite closed at 4,579.79, down 0.30%. The S&P ... the trading session, six out of ten sectors finished ... Sector Index ended the day at 751.48, up 0.10%, ...
Breaking Biology Technology:US Biocides Market 2US Biocides Market 3Invisible Sentinel's Test for Wine-Spoilage Microbe to be Distributed by Enartis in Multiple Markets Globally 2Invisible Sentinel's Test for Wine-Spoilage Microbe to be Distributed by Enartis in Multiple Markets Globally 3Stock Updates on Biotech Industry - Array BioPharma, Enzon Pharma, Alkermes, Amarin, and Synergy Pharma 2Stock Updates on Biotech Industry - Array BioPharma, Enzon Pharma, Alkermes, Amarin, and Synergy Pharma 3Stock Updates on Biotech Industry - Array BioPharma, Enzon Pharma, Alkermes, Amarin, and Synergy Pharma 4Stock Updates on Biotech Industry - Array BioPharma, Enzon Pharma, Alkermes, Amarin, and Synergy Pharma 5
... National Institutes of Health have turned simple baker,s yeast into ... for drugs to treat Parkinson,s disease. In a study ... researchers showed that they can rescue yeast cells from toxic ... the cells to make very small proteins called cyclic peptides. ...
... , WILMINGTON, Del., July 13 ParagonRx, a ... medications, has launched a new website - www.paragonrx.com ... companies needing information and assistance in complying with new FDA requirements ... and dangerous side effects. , , ...
... , , LEXINGTON, Mass. and HEIDELBERG, ... announced today the launch of the first human cancer biochip for ... Sequencing (NGS). The new catalog cancer biochip features 115 important genes ... by the Wellcome Trust Sanger Institute. , , ...
Cached Biology Technology:Novel drug discovery tool could identify promising new therapies for Parkinson's disease 2Novel drug discovery tool could identify promising new therapies for Parkinson's disease 3Novel drug discovery tool could identify promising new therapies for Parkinson's disease 4ParagonRx Creates New Website Featuring REMS Help Center for Pharma 2First Catalog Cancer Biochip for Sequence Capture Now Available from febit 2
(Date:9/21/2014)... of California, San Diego, have developed a program that ... activity of genes based on sequences of DNA. They ... to human embryonic cells in a paper published in ... of our cells have the same blueprint, the same ... lead author of the report. "Skin cells protect, nerve ...
(Date:9/19/2014)... the Jimmy Durante of dinosaurs a newly ... The new dinosaur, named Rhinorex condrupus ... Brigham Young University, lived in what is now ... Late Cretaceous period. , Rhinorex, which translates roughly ... close relative of other Cretaceous hadrosaurs like Parasaurolophus ...
(Date:9/19/2014)... a species which over thousands of years has adapted to ... substance that makes the cold dangerous for you. , This ... , and the cold provoking substance, called nonylphenol, comes from ... is suspected of being a endocrine disruptor, but when entering ... worm,s ability to protect the cells in its body from ...
Breaking Biology News(10 mins):Program predicts placement of chemical tags that control gene activity 2New hadrosaur noses into spotlight 2Environmental pollutants make worms susceptible to cold 2Environmental pollutants make worms susceptible to cold 3
... belonging to the genus Daphniola was found by a ... spring covered by snow on Mt. Parnassos, central Greece. This study ... . The new species, Daphniola eptalophos , ... a black penis with a small colorless outgrowth on the left ...
... Acinetobacter baumannii (MDR-AB) was found in the ... colonized or infected with the pathogen, according to a ... American Journal of Infection Control , the official ... Infection Control and Epidemiology. The study examined ...
... of Southern California (USC) professor Mary Ann Pentz, Ph.D., shows ... are more likely to drink alcohol in high school than ... September-October 2011 issue of the journal Alcohol and Alcoholism ... that may benefit from special prevention programs. "As you ...
Cached Biology News:Acinetobacter baumannii found growing in nearly half of infected patient rooms 2Underage drinking among close friends high indicator of future alcohol use by black teens 2
Unit Definition: 1 U corresponds to the amount of enzyme which produces 1 mol protons per minute at pH 5.5 and 30C (peptin from citrus peel, Fluka-No. 76280, as substrate)...
ANTI STENOTROPHOMONAS MALTOPHILIA...
... tube handling and reagent dispensing Holds: ... - 96 x 0.3ml U-bottom Omnistrips ... Non-Skirted Plate - Thermo-Fast® 96 Semi-Skirted Plate ... Multiple workstations can be securely stacked Can be stored ...
... well Magnetic-Ring Stand is designed for paramagnetic ... microplates. The stand has a plastic base ... plate footprint. The use of 96 extremely ... easy magnetic separation. With this magnetic stand, ...
Biology Products: