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Scientists discover ‘Legos of Life’

Rutgers researchers identified a small set of simple protein building blocks (left) that likely existed at the earliest stages of life's history. Over billions of years, these "Legos of life" were assembled and repurposed by evolution into complex proteins (right) that are at the core of modern metabolism. Credit: Vikas Nanda/Rutgers Robert Wood Johnson Medical School

Rutgers researchers identified a small set of simple protein building blocks (left) that likely existed at the earliest stages of life’s history. Over billions of years, these “Legos of life” were assembled and repurposed by evolution into complex proteins (right) that are at the core of modern metabolism. Credit: Vikas Nanda/Rutgers Robert Wood Johnson Medical School

Rutgers scientists have found the “Legos of life” – 4 core chemical structures that can be stacked together to build the myriad proteins inside every organism – after smashing and dissecting nearly 10,000 proteins to understand their component parts...

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