Molecular Photograph of the CCA-Adding Enzyme in Complex with an RNA (IMAGE)
Caption
Researchers at Cold Spring Harbor Laboratory have uncovered a remarkable, new proofreading mechanism. In general, enzymatic machines are responsible for weeding out and correcting errors. But a team of scientists has found that the CCA-adding enzyme (shown here in blue, green, and pink) doesn't edit at all. Instead, the RNA (in orange) has a built-in mechanism that allows it to proofread itself.
Credit
L. Joshua-Tor, Cold Spring Harbor Laboratory
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