Unraveling genetic networks

If genes are the currency of life, then the whole economies are genetic networks, which include genes as well as the complex webs of interactions and interconnections between them. Genetic networks are integrally important ...

Stem cell clues uncovered

Proper tissue function and regeneration is supported by stem cells, which reside in so-called niches. New work from Carnegie's Yixian Zheng and Haiyang Chen identifies an important component for regulating stem cell niches, ...

Human Argonaute proteins: To slice or not to slice?

What makes one Argonaute a slicer and another one not? Human Argonaute proteins are key players in the gene regulation process known as RNA interference, RNAi. Professor Joshua-Tor's group of Cold Spring Harbor Laboratory ...

DNA gridlock: Cells undo glitches to prevent mutations

Roughly six feet of DNA are packed into every human cell, so it is not surprising that our genetic material occasionally folds into odd shapes such as hairpins, crosses and clover leafs. But these structures can block the ...

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