LAGUNA DESIGN / SCIENCE PHOTO LIBRARY LAGUNA DESIGN / SCIENCE PHOTO LIBRARY
TFAM transcription factor bound to DNA, molecular model. Human mitochondrial transcription factor A (TFAM, pink) bound to a strand of DNA (deoxyribonucleic acid, orange and green). TFAM plays a vital role in the activation of transcription in mitochondrial DNA (mtDNA). It also plays a role in mtDNA packaging and maintenance. It does this by binding to and bending the DNA, as shown here. Mitochondria are organelles that generate energy within cells.
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