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MRC Laboratory of Molecular Biology

MRC Laboratory of Molecular Biology

One of the world's leading research institutes, our scientists are working to advance understanding of biological processes at the molecular level - providing the knowledge needed to solve key problems in human health.

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Insight on Research

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Structure of human dynein shows the powerstroke mechanism

Dyneins are a family of motor proteins that move along microtubules powered by chemical energy from ATP. Andrew Carter and his group in the LMB’s Structural Studies Division have solved the structure of a dynein protein bound to a chemical that mimics the shape of ATP, and have shown for the first time how the dynein can ‘walk’ along the microtubule.
Dynein proteins carry various important cargos to different parts of the cell, and are crucial to correct cell function.

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Published on 2nd December, 2014

Evolution of catalysis: alternatives to nature’s molecules

Life on Earth depends on catalysis. Chemical transformations essential for cellular function are too sluggish to happen spontaneously at ambient temperatures and pressures, thus nature has developed myriad catalysts (enzymes) that accelerate the many key reactions necessary for life.

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Published on 1st December, 2014

Local brain “clock” revealed for the first time

Specific loss of Bmal1 (green cells)
in histaminergic cells (red cells)
within the TMN
(Images from Prof Bill Wisden lab)It is well known that all animals have an internal circadian clock that responds to daily environmental changes of light and darkness, to inform the body to rest and sleep, or wake and be active.

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Published on 17th November, 2014

Golgin proteins specify destination of vesicle traffic

Inside our cells are many small transport vesicles that act as carriers to move proteins and lipids around the cell. To maintain cell function, these vesicles have to deliver their cargo to exactly the right destination. New research by Mie Wong from Sean Munro’s group in the LMB’s Cell Biology Division has shown that when specific vesicles arrive at their correct site, they are captured and tethered by long golgin proteins, ensuring that the cargo is delivered to the right place.

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Published on 10th November, 2014

Unexpected role of Histone H3.3 in replication of damaged DNA

An unexpected finding from Julian Sale’s group in the LMB’s PNAC Division has revealed that a specialised histone protein called H3.3 is needed for packaging UV-damaged DNA during replication. Use of this histone may act as a flag to help the cell find and repair the damage once replication has been completed, potentially reducing the chance of harmful mutations.
Every time a cell divides, the double-stranded DNA needs to be copied with the DNA strands separated in a replication fork.

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Published on 16th September, 2014

New mechanism of antiviral immunity discovered

Research from the LMB’s PNAC Division has revealed a new mechanism that cells use to fight infection. Jerry Tam and other members of Leo James’s group have discovered that the protein complement C3, which covalently labels viruses and bacteria in the bloodstream, activates a potent immune response upon cell invasion.
Molecular biologists chemically modify proteins to label them for easy identification.

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Published on 5th September, 2014
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