Types of Proteins and Their Functions

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Enzyme

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A type of protein that speeds up or catalyizes a specific chemical reaction.

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Transport Protein

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A type of protein that carries small molecules and ions.

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Motor Protein

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Proteins that enable movement in cells and tissues

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Signaling Protein

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A protein type that carries signals between cells

example: Insulin

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Receptor Proteins

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A type of protein that mediates a cell response to a stimulus (many receptors interact with signaling proteins).

Example: Rhodopsin

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Antibody

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A protein involved in the immune response. They bind and inactivate foreign substances and microbes.

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Storage proteins

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Proteins that store materials lice amino acids and iron

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Structural Protein

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Provide protection and support

example: actin, keratin

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Cancer

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A non-infectous disease where cells lose the normal controls that regulate their growith and division in the cell cycle.

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cell cycle

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A sequence of phases from the end of one cell division to the end of the next.