Protein Structure
Over 50% of common cancers are associated with damage to a protein, p53. This protein

is an oncogene
regulates apoptosis
is a tumor supressor
is a cyclin

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Protein Structure
Metastasis involves

metalloprotein levels
All of these
decreased levels of proteins that regulate metalloproteins
ability of cells to dissolve cellular matrix

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Protein Structure
Cyclins are proteins that

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

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