Imagine a brain teaser where the challenge is to spot the difference between two nearly identical sandcastles. The only difference? The removal of three grains of sand. Scientists face a similarly exasperating challenge when looking at changes in protein levels within our cells, where small fluctuations can mean the difference between health and disease or a drug working and not working.

Imagine a brain teaser where the challenge is to spot the difference between two nearly identical sandcastles. The only difference? The removal of three grains of sand. Scientists face a similarly exasperating challenge when looking at changes in protein levels within our cells, where small fluctuations can mean the difference between health and disease or a drug working and not working.

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