Biological chemistry

Smart liquid. Credit: The Science website via DALEE. The picture is not a scientific picture

For the first time: "smart liquids" will be used as sensitive biological sensors

The team of researchers explained that the uniqueness of the smart liquids is that, as a result of their chemical properties, the liquids maintain separation from each other, thus creating distinct droplets
The different location of different opsins on a human sperm cell, as seen under a microscope, revealed by fluorescent antibody labeling (in bright yellow)

Sperm cells navigate their way using vision proteins

  • One response
proteins inside the cell. Image: Courtesy Nicolle Rager and National Science Foundation

Scissors for removing proteins

  • One response
From the right: Prof. Avraham Ben-Nun, Prof. Yehiel Shai, Dr. Nathalie Kaushensky and Omari Fingold. Inhibitory effect

To take advantage of the infection mechanism of the AIDS virus to fight autoimmune diseases

  • No comments
The AIDS virus in the bloodstream. Illustration: shutterstock

The antiviral molecules - which also fight the HIV virus

  • No comments
Right: Maria Pozshi Levy, Dr. Michal Sharon, Yishai Levin and Gili Ben-Nisan. Flexibility. Photo: Weizman Institute

recycled proteins

  • No comments
lung cancer. Image: Shutterstock

Early detection of lung cancer risk

  • 3 תגובות
Danit Oz Levy and Amir Gelman. Standing in the back, from the right: Prof. Doron Lantz and Prof. Zebulon Elazar. rare mutations

Mistakes on the way to recycling

  • No comments
Targeted medicine. Illustration: shutterstock

It is possible to 'recycle' drugs that have been disqualified for use and use them as targeted drugs

  • 2 תגובות
Cellulose fibers in a plant cell wall magnified 50,000 times using an atomic force microscope

Breaking down barriers

  • One response
The institute's scientists have developed a preliminary treatment that allows the lignin in the plant to be removed without damaging the sugars
Right: structure of a single ring (A) and structure of a double ring (B), known as hexadecameric catenane. Left: The structure of the hexadecameric catenane can be visualized as two interlocking rings.

An enzyme with an unusual and surprising structure

  • No comments
An adult fruit fly exposed to an environmental challenge (poison) during its development (left), compared to a fly that developed in a favorable environment (right)

challenges in the environment

  • One response
Prof. David and Lech. Photo: Weizmann Institute

A warning call

  • One response
A rat uses the bathroom as a Royal Dane

Small and maddening services

  • No comments
From the right: Dalia Ellinger, Dr. Yael Leitner-Dagan, Dr. Ziv Seville, Dr. Tamar Paz-Elitzur and Prof. Zvi Livna. Increased sensitivity

added risk

  • One response
the blood-brain barrier. Photo: Ben Brahim Mohammed via Wikimedia Commons

The gates of hope - it turns out that the AIDS virus can actually help introduce drugs into the brain

  • No comments
Prof. Rebecca Dickstein. Continuous activity. Photo: Weizmann Institute magazine

The principle of continuity

  • No comments
Prof. Mike Feinzylver and Dr. Ida Rischel. Transportation

size matters (in cell)

  • No comments
The interaction between the proteasome and NQO1 is based on mutual inhibition: the proteasome breaks down unstructured NQO1 enzymes (which are not bound to FAD), while the enzyme, when bound to FAD, prevents the proteasome from breaking down other proteins - including itself

Save the lifeguard

  • One response
The molecular structure of the Spanish flu virus protein (hemagglutinin), as it is tightly bound to the protein (in green) developed using the new computerized method

the matchmaker

  • No comments
Right: Prof. Gideon Schreiber and Yael Philip. real time. Photo: Weizmann Institute

Meetings

  • No comments
The woman in the picture has a magnificent mane of hair, partially covering her naked body. This is not a recently discovered unknown work of art, but part of a plant cell, magnified more than 20,000 times.

see the light

  • One response
From the right: Dr. Adi Rowe, Raz Pelti, Ruth Meler, Prof. Eitan Reuvani and Ido Kaminsky. Concentrations. Photo: Weizman Institute

Stocktaking

  • One response
Sitting from the right: Liat Russo Nouri, Dr. Gad Asher, Dr. Yehudit Cohen. Standing from the right: Ziv Zweihaft, Tal Shamia, Dr. Adi Neufeld - Cohen. Day and night

around the clock

  • 14 תגובות
The three-dimensional structure of the acetylcholinesterase enzyme molecule, with acetylcholine (center, in light green) within the active site

Good delay

  • 2 תגובות
LSD molecule

The Bad Trip of Tesco the Elephant: On the History of LSD

  • No comments
The cellular "steam valve" discovered by Prof. David Valech. Illustration: Weizmann Institute

The scientists of the institute discovered a group of genes that suppress increased cell division

  • No comments
Synthetic proteins produced by bacteria. Illustration: Munich University of Technology

Luminous protein

  • No comments
David Wishard, University of British Columbia

More than four thousand new blood substances have been documented

  • 7 תגובות
Protein folding (full explanation of the image in the original article)

An innovative method for photographing proteins during their folding

  • 2 תגובות
Ronald Holtan, left, and Walter Trahanovsky, both from Iowa State University, have found a new method for making important chemicals from biomass instead of petroleum sources.

A new method for preparing important chemicals from biomass

  • 2 תגובות
Palladium in the periodic table

Bacteria that act as "green" chemists

  • 3 תגובות
PhD student Maya Shoshan. Photo: Daniel Wiseman

Researchers at Tel Aviv University have revealed the mechanism responsible for introducing copper ions into the cell

  • One response
Cancer cells that have been treated with anti-cancer agents. Yale University

An innovative method for examining cancer proteins

  • One response
Trifluoromethyl is attached to a benzene ring (the hydrogen atoms attached to the ring are not shown)

A novel synthesis method for pharmaceuticals

  • No comments
hydrogen sulfide

Poisonous gas saves lives

  • One response
Schematic diagram of HIV. From Wikipedia

Determining protein structure will help cure AIDS

  • No comments
Professor Nicholas Hood from the Technical School of Chemistry and Biochemistry (right) and graduate student Reagan Buckley discovered a pathway where the RNA building block could have formed. - Guanine in the world before the formation of life. Image: Gary Meek

Origin of life: Ultraviolet radiation helps to create guanine

  • 6 תגובות
An example of polyene - Amphotericin B

A new method for preparing important medicines

  • No comments
"By binding the 'combat head' molecule to the peptoid, we have shown that we can increase the protein's killing potential a thousandfold without requiring an expensive and lengthy optimization process," says Prof. Tom Kodadec

New substances to unload proteins

  • No comments
Researchers at the University of Gothenburg were able, using an advanced X-ray flash, to photograph the movement of atoms during photosynthesis.

Photographing the movement of atoms during photosynthesis

  • 2 תגובות
Minister of Agriculture Benjamin Ben Eliezer on the right, and the chief scientist at the ministry, Dr. Eli Ofer. Photo: Assaf Shiloh - Israel Sun

The chief scientist's research committee approved projects in the field of life sciences amounting to NIS 120 million 

  • One response
Light switches the action of the transcription factor AP-1 (blue-green) in living cells through the inhibitor (red-yellow) modified by a light-sensitive chemical adapter. Credit: Albert Ludwig University Freiburg

A new method for controlling proteins

  • No comments
Zachary Ball, Brian Popp

Synthetic enzymes will be able to recognize proteins

  • 2 תגובות
Zhihao Zhuang (second from right) and his team

An innovative method for preparing proteins

  • No comments
From the right: Prof. Mati Friedkin and Prof. Yoram Schechter.

Inventors 2009 of the Weizmann Institute

  • One response
Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

The computer we have in every cell

  • 6 תגובות
Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

This week it's happening: the ceremony of awarding the Nobel Prize in Chemistry to Prof. Ada Yonat

  • No comments
Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Fullerenes have the ability to accumulate in living tissues

  • No comments
Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

New compounds send out light signals when they trap substances in the blood

  • One response
Science website logo
SEARCH