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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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Watching neurons transmit visual information

Work in Leon Lagnado’s group in the LMB’s Neurobiology Division is showing how synapses transmit visual signals in the retina of zebrafish. The group designed fluorescent proteins that light up when synapses are active and made transgenic zebrafish expressing these proteins in retinal neurons. They then used a multiphoton microscope to directly observe the activity of synapses in the retina of live fish as they responded to different visual stimuli.

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Published on 21st May, 2013

New mechanism in the body’s timekeeping revealed

Our cycle of sleep and wakefulness is controlled by a daily (circadian) body clock in our brain. When this cycle happens in a regular way people function well, but when this cycle is disturbed it can lead to a severely disrupted life. The suprachiasmatic nucleus (SCN)  is part of the body clock and individual neurons of the SCN contain their own 24-hour clock, but they operate best when connected together in their neural circuit and run in synchrony.

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Published on 30th April, 2013

Understanding the mechanism of the nucleocytoplasmic transport cycle

New research, from a team of scientists in the LMB’s Structural Studies Division and the Texas A&M Health Science Center, illustrates the molecular mechanism behind a fundamental cellular process.
The research, published in PNAS, provides new insights into the way in which components of the nuclear protein transport machinery move through nuclear pores.

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Published on 29th April, 2013

TRIM21 senses infection and triggers immune response inside cells

New research, led by Leo James and Will McEwan from the LMB’s PNAC Division, has uncovered a previously unrecognised mechanism of intracellular pathogen detection which may provide a deeper understanding of how antibodies help fight disease and lead to the design of better vaccines and gene therapies.
Earlier research from Leo’s group showed that viruses carry antibodies into cells when they infect them [1].

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Published on 4th March, 2013

Uncovering molecular signatures of G-protein-coupled receptors

G-protein-coupled receptors (GPCRs) are a family of cell-surface proteins that are vital for various physiological functions including vision, smell, taste, and behavior. They are also the pharmacological targets of ~30% of prescribed drugs. For example, beta-blocker drugs prescribed for cardiac ailments target the β-adrenoreceptors − known GPCRs. The importance of GPCR biology was emphasised by the latest Nobel Prize in Chemistry (2012), awarded for studies of GPCRs.

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Published on 14th February, 2013

Ribosome structure determined to near-atomic resolution by cryo-EM

Determining the structure of proteins and other biomolecules at the atomic level is central to understanding many aspects of biology. X-ray crystallography is the best known technique for structural biology but, as its name suggests, it only works with samples that can be crystallized. Electron cryo-microscopy (cryo-EM) can be used to determine atomic structures of biomolecules that cannot be crystallized, but until now achieving high-resolution cryo-EM structures has been difficult.

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Published on 6th February, 2013
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