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Biological Regulation

A three-dimensional reconstruction of the mitochondrial volume: The volume is larger (yellow and red) in blood-forming stem cells lacking MTCH2 (right), and relatively smaller (blue and green) in regular blood-forming stem cells
09.09.2015

The wake-up call for blood stem cells comes with a jolt of energy  

We share many of our genes with sea urchins, but none of the sequences for long non-coding RNAs that regulate those genes
25.05.2015

Non-coding DNA sequences on an evolutionary “fast track” may hold clues to human disease

Immortalized cells, left, pretreated with a drug that blocks the ERK signal, and right, without the pretreatment. Top cells are untreated, while the bottom ones are stimulated
30.03.2015

Weizmann Institute scientists identify a potential drug molecule that stops cancer cells, but not healthy ones, from getting their “mail”

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A metastatic breast cancer cell under a fluorescent microscope.
23.02.2015

The discovery of a new breast cancer gene holds hope for treatment

Water dynamics near an enzyme-collagen complex: The rates at which water molecules exchange hydrogen bonds with one another depend on the distance from the active site of the enzyme (gray) and on the type of collagen interacting with the enzyme; the different rates create a gradient of water motions, ranging from extremely fast (red) to very slow (blue and light-blue)
04.02.2015

Water molecules in the body keep going after the main reaction is over

receptors day and night
06.10.2014

Weizmann Institute scientists reveal that a hormone that keeps us alert also suppresses the spread of cancer

Fluid-filled structures in the placenta: maternal and fetal blood vessels and embryo-derived trophoblast cells infiltrating the mother's vasculature
29.09.2014

A new MRI technique reveals how the mother's blood flow and that of the fetus meet in the placenta
 

(l-r) Dr. Zohar Mukamel, Zohar Shipony and Prof. Amos Tanay
21.07.2014

As the body’s cell divide and age, mistakes can pile up in the genome's "tags"

Chromosomes Show Off their Shapes
25.11.2013

A new view of our chromosomes reveals a complex picture
 

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