Cytokeratin 20 (CK20)

What is cytokeratin 20? Cytokeratin 20 (CK20) is a protein that is made mostly by epithelial cells in the colon, rectum, bladder, ureters, and urethra. It is also made by a specialized type of cell found in the skin called a Merkle cell. What does cytokeratin 20 do? CK20 belongs to a larger family of …
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