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Biological Regulation

Left: Natural control mechanism blocks the enzyme's zinc active site. Right: Novel antibody works as effectively as the natural control mechanism
19.03.2012
A synthetic molecule causes a useful immune response in mice
Prof. Yosef Yarden, Dr. Wolfgang Köstler, Amit Zeisel and Prof. Eytan Domany
11.03.2012

Bits of gene code that are normally discarded have found a surprising new use in research

Mouse cell lineage tree. Oocytes are in red, bone marrow stem cells in yellow, demonstrating that the two form separate clusters with only a distant relationship
23.02.2012

A new method is helping to resolve controversies and answer some open questions in biology. 

Mature oocyte, ready for fertilization; surrounding the oocyte are follicle cells
24.01.2012

What keeps the eggs in the ovary from maturing until the time comes for ovulation?

Dr. Yechun Xu, You-Yang and Dr. Minjun Li. Made at the Institute
04.01.2012

A pair of Chinese students found a second home at the Weizmann Institute.

Left: Natural control mechanism blocks the enzyme's zinc active site. Right: Novel antibody works as effectively as the natural control mechanism
26.12.2011

Institute scientist  “trick” the body into blocking an enzyme that abets disease processes

The adult stem cell unit: Niches are in red. Cap cells (barbed arrowhead) are tightly associated with germ-line stem cells (outlined). Germ-line stem cells carry a spherical organelle - a fusome - which is asymmetrically localized to the side of the cap cells (arrow). Once the stem cell divides, one daughter cell loses contact with the niche and differentiates (green). The fusome in a differentiating germ cell becomes branched (arrowhead)
18.12.2011

Nature has an ingenious method for orchestrating stem cell development.

Prof. Irit Sagi, Dr. Dmitry Tworowski, Moran Grossman and Dr. Benjamin Born. Water dymanics
14.12.2011

What happens when water meets protein?

Genes that delay cell division exhibit reduced levels of expression (left) after exposure to a second, delayed pulse of growth factor. Those in cells receiving a single pulse (right box) maintained high expression levels
21.07.2011

A gene that keeps cell division in check may hold clues to chemotherapy resistance. 

(l-r) Prof. Varda Rotter, Dr. Eldad Tzahor, Dr. Ariel Rinon, Alina Molchadsky and Dr. Rachel Sarig. Migration regulation
22.06.2011

A gene that protects us from cancer is also involved in the timing of a crucial stage of embryonic development.

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