Researchers clear major obstacle in genetic engineering of proteins
Peer-Reviewed Publication
Updates every hour. Last Updated: 23-Oct-2026 11:17 ET (23-Oct-2026 15:17 GMT/UTC)
A new tool allows researchers to design and produce synthetic proteins faster, more safely, and at larger scale than previously possible. Each protein can contain up to 34 custom amino acids rather than the naturally occurring 20. The work promises to expand the development of novel protein-based medicines and other materials. The technology arises from a discovery that overturns decades of understanding of how transfer RNAs (tRNAs) help turn the genetic code into proteins.
What if amyloid plaques are not the whole story of Alzheimer’s disease? New research suggests that a broad range of Alzheimer’s pathologies may be orchestrated by a molecular switch called ERBB4 when it turns on in the wrong neurons. Once activated, this misplaced signal can set off a chain reaction that disrupts brain circuits, eliminates synapses, activates glial cells, increases amyloid pathology and impairs memory.
A research team led by Associate Director CHUNG Won-Suk at the Center for Vascular Research within the Institute for Basic Science (IBS) has identified aberrant ERBB4 expression in excitatory neurons as an early driver of multiple Alzheimer’s disease pathologies. The researchers found that when ERBB4, a receptor normally associated mainly with inhibitory neurons, appears in excitatory neurons, it can trigger neuronal hyperactivity, abnormal synapse loss, reactive gliosis, amyloid accumulation, and cognitive impairment.When it comes to invading healthy cells, Legionella bacteria rely on blending in rather than breaking in. New research from Van Andel Institute scientists demonstrates how a protein produced by Legionella mimics the behavior of the host cell’s own proteins. This clever ruse allows the protein, RomA, to change how the host’s genes are regulated and create conditions that help the bacteria survive and multiply. But there is a limit to RomA’s effectiveness. Although the protein can read and respond to the host’s existing epigenetic landscape, those same signals constrain what RomA can and cannot do.
A research team has uncovered fundamental molecular mechanisms governing the formation of tendons and ligaments, which are essential for musculoskeletal integration. Understanding these mechanisms could pave the way for the regeneration of tendons, ligaments, and their attachment sites, known as entheses, which have limited capacity for functional repair after injury because of their poor vascularization.
Researchers have found that HRT may reduce the risk of dementia, particularly for certain groups of women. The team followed more than 180,000 postmenopausal women in the UK for this, the largest study of its kind to date. They found that women who had used HRT had a 16 per cent lower risk of developing Alzheimer’s (the main form of dementia) compared with those who had never used it. The greatest reduction was seen in women who had undergone surgical menopause, with a 26 per cent lower risk of developing any type of dementia, compared with non‑users. The study also found that women who naturally had lower lifetime oestrogen exposure, due to starting their periods late or early menopause, seemed to benefit more from HRT - with a 16 per cent lower risk of any type of dementia.
The warming climate is reshaping populations of the snail that transmits schistosomiasis in China. Now, researchers show that 92% of studied snail populations had positive temperature sensitivity, while body size and land use shaped survival and density. Projections suggest that more than 20% of populations could increase under future warming, highlighting regions and habitats where climate-adaptive surveillance and targeted snail control should be strengthened to sustain progress toward schistosomiasis elimination and protect communities nationwide.