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

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

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Protein Structure
Metastasis involves

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

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Protein Structure
Cyclins are proteins that

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

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