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Molecular Genetics

An electron microscope view of phages duplicated inside bacterial cells that possess the immune system discovered in the new study. This immune system attaches a ubiquitin-like protein (marked by black dots and white arrows) to the tails of these phages, preventing them from infecting other bacterial cells
17.07.2024

A bacterial immune system that alters the tails of phages might help clarify an immunity mechanism in humans

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15.07.2024

Why do we inherit only maternal mitochondria? A new study shows how the paternal versions are deliberately destroyed

Researchers used color-coded proteins to reveal the identity of the cells in the organoids they produced. In four organoids that simulate the embryo’s central nervous system, the magenta marks proteins associated with the development of the forebrain and the midbrain, the green, the hindbrain and the red, the center of the spinal cord
01.06.2024

Researchers from the University of Michigan and the Weizmann Institute develop the first-ever complete central nervous system on a chip; it...

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09.01.2024

Weizmann Institute of Science researchers call for a new kind of test – one that will ensure evolutionary safety – ...

A stem cell–derived human embryo model at a developmental stage equivalent to that of a human embryo at day 12 has all the compartments typical of this stage. The top sphere contains the part that will become the embryo itself, capped by the amnion; the bottom sphere is the yolk sac; the interface between them is a critical structural feature of human embryonic development. The two spheres are encapsulated by a cellular layer that will become the placenta
06.09.2023

The complete, day 14 synthetic models may open new avenues of research into infertility, drug testing and growth of tissues for transplant – as...

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17.08.2023

A newly discovered immune strategy protects bacteria and more advanced species, from corals to bees

Lung macrophages infected with the human cytomegalovirus. Cells harboring an active infection are in bright green
28.06.2023

High levels of defensive proteins offer protection against a hostile takeover by herpes viruses

Bacteriophages attacking a bacterium. Source: Prof. Graham Beards
25.10.2022

Weizmann Institute scientists reveal how viruses outwit cellular immune systems

Development of synthetic mouse embryo models inside beakers
01.08.2022

The method opens new vistas for studying how stem cells self-organize into organs and may in the future help produce transplantable...

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