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英语炎德英才2024届雅礼中学高三下学期月考(七)试卷

时间:2024-04-18 15:44:01编辑:超级管理员来源:本站当前位置:首页>>炎德英才大联考

英语炎德英才2024届雅礼中学高三下学期月考(七)试卷

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DNA testing is one of modern medicine’s most significant breakthroughs. Today, anyone can receive personalized information about their genes and ancestry with just a little saliva (唾液). Now, a Seattle-based company is working to bring equally deep analysis to the trillions of proteins within our bodies.

Nautilus Biotechnology, a company founded in 2016 by Seattle’s Sujal Patel and the San Francisco Bay Area’s Parag Mallick, is developing a device to identify and count 95% of the different types of proteins in a biological sample.

Human cells can contain roughly 20,000 different types of proteins, with crucial functions ranging from digestion to disease protection. Each cell has a varying amount of each protein. The company wants to measure the key machinery (系统) inside cells with a level of detail that has never been done before. Existing tools, it says, can only measure up to 8% of the different types of proteins in blood samples.

So why do people count proteins? Research shows healthy cells and diseased cells have differing amounts and forms of each protein. For example, cancer cells may have more of Protein A than Protein B. Knowing that might help in two ways. First, doctors could look for higher Protein A levels to detect cancer early. Second, researchers could better design drugs to target Protein A.

Nautilus says such protein measurements, which are unique to every person and change throughout people’s lives, will not only help doctors identify more specific forms of disease but also help pharmaceutical (制药的) companies find more precise drugs with fewer side effects.

While other companies also are building new protein analysis machines, experts and prospective customers have expressed excitement over Nautilus’s approach. Mallick, chief scientist of Nautilus and the brains behind its technology, is confident. “It’s not every day that you get ... to work on something that’s the opportunity to change all of biology.”

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英语炎德英才2024届雅礼中学高三下学期月考(七)试卷

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