Transcriptional regulators can determine cell types.
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Transcriptional regulators can determine cell types.
The wide variety of cell types in a single organism can depend on different transcription factor activity in each cell type. Different transcription factors can turn on at different times during successive generations of cells. As cells mature and go through different stages (arrows), transcription factors (colored balls) can act on gene expression and change the cell in different ways. This change affects the next generation of cells derived from that cell. In subsequent generations, it is the combination of different transcription factors that can ultimately determine cell type.
This image is linked to the following Scitable pages:
In multicellular organisms, nearly all cells have the same DNA, but different cell types express distinct proteins. Learn how cells adjust these proteins to produce their unique identities.
The organized arrangement of cells in tissues relies on controlled cell division and cell death. Learn how cells are replenished by stem cells and removed by apoptosis.
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