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

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

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Protein Structure
Metastasis involves

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

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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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