Quantcast

Latest Organelles Stories

2011-12-20 22:14:38

Bacteria are able to build camouflaged homes for themselves inside healthy cells - and cause disease - by manipulating a natural cellular process. Purdue University biologists led a team that revealed how a pair of proteins from the bacteria Legionella pneumophila, which causes Legionnaires disease, alters a host protein in order to divert raw materials within the cell for use in building and disguising a large structure that houses the bacteria as it replicates. Zhao-Qing Luo, the...

2011-12-01 11:29:07

Understanding mechanism may aid in development of infection-fighting drugs In the human world of manufacturing, many companies are now applying an on-demand, just-in-time strategy to conserve resources, reduce costs and promote production of goods precisely when and where they are most needed. A recent study from Indiana University Bloomington scientists reveals that bacteria have evolved a similar just-in-time strategy to constrain production of an extremely sticky cement to exactly the...

2011-12-01 01:36:11

Researchers at the Hebrew University of Jerusalem and the University of Vienna have revealed for the first time a stress-induced machinery of protein synthesis that is involved in bringing about cell death in bacteria. Their work opens a new chapter in the understanding of protein synthesis under stress conditions, which are the conditions bacteria usually are faced with, both in humans and otherwise in nature, and could pave the way for the design of novel, new antibiotics that would help...

2011-11-18 07:08:12

Stowers researchers gain new insight into the chromosome separation process Each time a cell divides -- and it takes millions of cell divisions to create a fully grown human body from a single fertilized cell -- its chromosomes have to be accurately divvied up between both daughter cells. Researchers at the Stowers Institute for Medical Research used, ironically enough, the single-celled organism Saccharomyces cerevisiae -- commonly known as baker's yeast -- to gain new insight into the...

2011-11-18 03:12:49

Potent intracellular messengers implicated in cancer metastasis, blood clotting and inflammation Researchers at NYU Langone Medical Center have discovered a protein called TAT-5 that affects the production of extracellular vesicles, small sacs of membrane released from the surface of cells, capable of sending signals to other cells. When released extracellular vesicles can affect tumor spread, blood clotting and inflammation. Their discovery gives new insight into how extracellular...

2011-11-18 02:52:23

Reducing a protein called Siah2 in mice improves mitochondrial response to low oxygen, a condition cells experience when blood flow is restricted during a heart attack Mitochondria are often called cellular "powerhouses" because they convert nutrients into energy. But these tiny structures also help determine cellular lifespan. Scientists at Sanford-Burnham Medical Research Institute (Sanford-Burnham) are now discovering how mitochondria alternate between duplicating and fragmenting and...

2011-11-11 01:20:16

Study of hereditary Parkinson's finds that mitochondria can't be cleared out when damaged Current thinking about Parkinson's disease is that it's a disorder of mitochondria, the energy-producing organelles inside cells, causing neurons in the brain's substantia nigra to die or become impaired. A study from Children's Hospital Boston now shows that genetic mutations causing a hereditary form of Parkinson's disease cause mitochondria to run amok inside the cell, leaving the cell without a...

2011-11-04 23:04:27

The discovery of a new gene is helping researchers at Michigan State University envision more-efficient molecular factories of the future. A team of researchers, led by Katherine Osteryoung, MSU plant biologist, announced the discovery of Clumped Chloroplasts — a new class of proteins — in the current issue of the Proceedings of the National Academy of Sciences. CLMP1 plays a key role in helping chloroplasts, which carry out the life-sustaining process of photosynthesis,...


Word of the Day
bellycheer
  • Good cheer; viands.
  • To revel; to feast.
The word 'bellycheer' may come from 'belle cheer', "good cheer".
Related