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What is cytokeratin 7?

Cytokeratin 7 (CK7) is a protein that is made mostly by cells in the lung, breast, female reproductive organs (ovaries and endometrium), thyroid gland, and salivary glands (for example the parotid gland). It is also produced by some cells in the stomach and pancreas. Cytokeratin 7 is a type of protein called a keratin. These …
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