Type 2 diabetes mellitus (T2DM), characterized by abnormally high blood glucose levels, affects hundreds of millions of people worldwide. In the pursuit to better treat this disease, the human receptor protein GPR40 has been identified by pharmaceutical company Takeda as a potential new drug target.
Brain Receptor Structures Key to Future Therapeutics
Neurotransmitter receptor proteins are critical to learning and memory. Mutations are associated with neurological and neuropsychiatric conditions including Alzheimer’s, epilepsy, and autism. Structures of two such receptors, solved by x-ray crystallography, provide a blueprint for the development of therapeutics. Read more »
Designer Proteins Target Epstein-Barr-Virus-Associated Cancer
Researchers used new protein design approaches to develop a potential inhibitor of Epstein-Barr-Virus-associated cancer. The study shows not just how to help defeat the virus, but also opens up a whole new way to design proteins against viruses and ultimately, cancer. Read more »
Validating Computer-Designed Proteins for Vaccines
Computationally designed proteins that accurately mimic key viral structures can help produce better vaccines. The resulting protein structures, validated at the ALS, encourage the further development of this strategy for a variety of vaccine targets, including HIV and influenza. Read more »
Genentech Uses ALS Crystallography for Therapeutic Antibody Research
Genentech has developed a unique one-armed antibody, onartuzumab, which is now in late-stage clinical trials in multiple cancer types. The company used crystal structures obtained at ALS Beamline 5.0.2 to demonstrate the mechanism of action of this unique potentially therapeutic antibody. Read more »
Solving Structures with Collaborative Crystallography
The Berkeley Center for Structural Biology’s Collaborative Crystallography (CC) program is making major advancements in solving protein structures, especially for users involved in high-throughput projects. The CC program is an NIH-funded, peer-reviewed service that allows external users to apply for both beam time and the support of a crystallographer to perform experiments and subsequent data analyses. Read more »
Snapshots of Ribozyme Reaction States Reveal Structural Switch
RNA, like protein, can sometimes function as an enzyme (ribozyme) to speed biochemical reaction rates. But how does RNA, a simple polymer, enhance reaction rates by at least a million fold? Researchers obtained the structures of a ribozyme trapped in different states of its catalytic cycle, showing how a change in the RNA conformation governs the reaction mechanism. Read more »
The Path of Messenger RNA through the Ribosome
Using x-ray crystallography, researchers directly observed the path of mRNA in the 70S ribosome in Fourier difference maps at 7 Å resolution. Image depicts the view down the crystallographic 4-fold axis of the 70S ribosome-mRNA-tRNA complex, showing the head-to-tail juxtaposition of the model mRNAs (red-orange) between adjacent ribosomes. Read more »
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