Molecular and Cell Biology

Embryonic stem cells (marked in green fluorescent protein) that should become sex cells, in which the gene encoding Utx is not present. Each column shows a gene needed for sex cell development (top row – marked in red, purple and orange). After 12 days (bottom row) the expression of the four genes has stopped and, rather than develop into sperm or ova, the stem cells die

Back to the Future

28.08.2012

Molecular and Cell Biology, Evolution and Development, Genetics

Weizmann scientists discover an enzyme that is crucial for turning back the development clock in cells

Stem cells (alkaline phosphatase staining) from the lab of Dr. Jacob Hanna

Switches for Stem Cells

20.08.2012

Space & Physics, Cancer, Stem Cells, Molecular and Cell Biology, Genetics

When a critical step in stem cell differentiation goes awry, it can lead to cancer

Hornstein_microprocessor

A Cellular Microprocessor Keeps Its Cool

24.07.2012

Molecular and Cell Biology, Genetics, Mathematics

A complex for activating certain RNAs must avoid cutting up the wrong strands

(l-r) Dr. Gili Ben-Nissan, Prof. Yosef Shaul, Dr. Michal Sharon and Oren Moscovitz

Rescuing the Rescuers

24.07.2012

Biochemistry, Cancer, Molecular and Cell Biology, Genetics

How does the cell keep certain vital proteins from getting recycled?

Judging DNA by Its Cover

Judging DNA by Its Cover

23.07.2012

Cancer, Stem Cells, Molecular and Cell Biology, Genetics

A newly-discovered molecular mechanism might explain the link between stem cells and cancer

Kill the Messenger

Kill the Messenger

17.07.2012

Biochemistry, Cancer, Molecular and Cell Biology

A molecule developed at the Institute can intercept potentially cancer-promoting messages before they reach the cell nucleus

Cell Reports cover: Illustration by Dr. Rita Gelin-Licht showing yeast cells mating through extensions

Yeast Side Story

16.07.2012

Biochemistry, Brain & Behavior, Molecular and Cell Biology, Genetics

When yeast cells want to mate, they grow extensions in the direction of potential partners

Living Microprocessor Tunes in to Feedback

Living Microprocessor Tunes in to Feedback

12.06.2012

Molecular and Cell Biology, Genetics, Math & Computer Science

What keeps the machinery for chopping functional pieces out of certain long RNA strands from cutting up the wrong kinds of RNA?

socks

PAIRS

11.06.2012

Molecular and Cell Biology, Genetics, Robotics and Machine Learning

Proteins must match up correctly to catch a ride from one site to another in the cell

Budding wing from irradiated fruit fly larvae, magnified about 80 times; various aspects of apoptosis in a regular fly (left column) are compared with the mutant fly lacking the drice gene (right column). Upper row: “reporter” proteins are highlighted with green fluorescent protein; middle row: the cutting up of these reporter proteins by caspases; bottom row: numerous cells die by apoptosis in the regular fruit fly (left), whereas almost no apoptosis occurs in the fly lacking the Drice caspase (right)

The Slings and Arrows of Outrageous Cellular Fortune

11.06.2012

Cancer, Molecular and Cell Biology

What separates the cells that are prone to suicide from those that are long lived?

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