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

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

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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
regulate apoptosis of damaged cells
None of these

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Protein Structure
Metastasis involves

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

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