Protein Structure
BRACl, an inherited form of breast cancer, regulates cell division by

binding to a DNA sequence
binding to the protein RAD 51 which repairs DNA damage
complexing with cyclins
binding to the cell outer membrane

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Protein Structure
Cyclins are proteins that

None of these
regulate ability of cells to invade tissue
regulate passage from one stage of cell division to another
regulate apoptosis of damaged cells

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