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:1/14/2014)... DC (PRWEB) January 14, 2014 Carahsoft ... for Thursday, January 23, 2014 at 2pm EST (11am ... Knowledge.” The topic focuses on how technology can turn ... critical decisions for government agencies. The online webinar will ...
(Date:1/14/2014)... pet owners drew up their lists of New Year,s resolutions for ... of my furry companion." Nowadays there are pet salons, dog and ... take the little canine or feline darlings along wherever mommy or ... pricey toys at the pet store. But anyone who has ever ...
(Date:1/14/2014)... BETHESDA, Md. , Jan. 14, 2014  Organovo ... institutes from the National Institutes of Health (NIH) to ... more effective treatments to patients on a faster timeline. ... Translational Sciences (NCATS) and the National Eye Institute (NEI) ...
(Date:1/14/2014)... 14, 2014  RXi Pharmaceuticals Corporation (OTCQX: RXII), a ... innovative therapies addressing major unmet medical needs using ... Notice of Allowance from the United States Patent ... compounds (sd-rxRNA®), for the treatment of fibrosis. The ...
Breaking Biology Technology:Webcast - Natural Language Processing: Converting Raw Data into Actionable Knowledge – Hosted by Carahsoft and CDS Federal Services 2New Year's Resolution: Give Pets the Gift of Top-Notch Health Care 2Organovo Announces Collaboration with National Institutes of Health 2Organovo Announces Collaboration with National Institutes of Health 3RXi Pharmaceuticals Receives US Notice of Allowance for a Key Patent Relating to its Self-Delivering Technology with sd-rxRNAs targeting CTGF, including RXI-109, for the Treatment of Fibrotic Disorders 2RXi Pharmaceuticals Receives US Notice of Allowance for a Key Patent Relating to its Self-Delivering Technology with sd-rxRNAs targeting CTGF, including RXI-109, for the Treatment of Fibrotic Disorders 3
... subsidiary in Philadelphia Area -, PHILADELPHIA, Feb. ... cellular imaging, announced today the appointment of Chris ... subsidiary of Paris-based Mauna,Kea Technologies and develops and ... improves patient care by eliminating the,need for unnecessary ...
... Prescription Rates, According ... to a New Report from Decision Resources, WALTHAM, ... leading research and advisory firms focusing on pharmaceutical and,healthcare ... ustekinumab will become the clinical gold standard,for psoriasis by ...
... the world,s leading,online bioscience job board and life ... pharmaceutical job candidates at its Biotech,Bay Career Fair ... The BioSpace Career Fair drew a steady ... career candidates from,around the Northern California region. For ...
Cached Biology Technology:Chris Tihansky Appointed President of In Vivo Cellular Imaging Leader Cellvizio Inc. 2Centocor/Janssen-Cilag's Ustekinumab Will Become the Gold Standard for Psoriasis By 2011 2BioSpace Career Fair in San Francisco Welcomes Over 1,000 Bioscience Professionals 2
(Date:4/22/2014)... London PETA International Science Consortium Ltd.,s nanotechnology expert ... strategy for nanomaterial hazard assessment" at the 7th ... 2014, in Antalya, Turkey. , Dr. Monita Sharma ... from the US National Academy of Sciences, " Toxicity ... Strategy ," which recommends use of non-animal methods involving ...
(Date:4/22/2014)... nanotechnology researchers at the University of Kentucky has discovered ... using RNA. , The research, led by Peixuan ... Nanobiotechnology at the UK College of Pharmacy and Markey ... as a Boiling-Resistant Anionic Polymer Material To Build Robust ... F. Khisamutdinov and Daniel L. Jasinski. , The article, ...
(Date:4/22/2014)... and precipitation on the global distribution of plant and ... the UV-B radiation, is often neglected. The landscape ecologists ... Universities in Olomouc (Czechia), Halle and Lneburg have processed ... such a way that they can be used to ... The basic input data were provided by a NASA ...
Breaking Biology News(10 mins):RNA shows potential as boiling-resistant anionic polymer material for nanoarchitectures 2UV-radiation data to help ecological research 2
... in Uganda who self-paid for their antiretroviral medications experienced ... or supply logistical disruptions. These treatment interruptions led ... patients. , These findings by a team led by ... Kampala, and UCSF are reported in the April 22, ...
... pediatric specialists at Baylor College of Medicine have discovered a ... that allows drugs to enter cancer cells. , The research ... and Biomolecular Chemistry. , All living cells defend themselves ... form a protective cocoon around the cell's inner machinery and ...
... cells to turnover their contents, something that they do ... and radiation, but it is not known if this ... survive the anti-cancer therapy. However, in a study using ... the University of Pennsylvania have now shown that autophagy ...
Cached Biology News:Resistance to anti-HIV drugs in Uganda developed due to drug supply problems 2Buckyballs used as 'passkey' into cancer cells 2
Recombinant Viral CCI/Fc Chimera, CF...
... DeStreak Reagent, 1 ml. ... 2-D gels by preventing streaking.Eliminates ... oxidation of proteins.Stabilizes proteins throughout ... simplified, well-resolved protein patterns.Ideal for ...
LIVE/DEAD® Cell-Mediated Cytotoxicity Kit *for animal cells* *2000 assays*...
SlowFade Antifade Kit with DAPI...
Biology Products: