At the time the article was created Joachim Feger had no recorded disclosures.
View Joachim Feger's current disclosuresAt the time the article was last revised Ciléin Kearns had no financial relationships to ineligible companies to disclose.
View Ciléin Kearns's current disclosuresCalponin is an actin-binding protein regulating actin/myosin interaction in smooth muscle and non-muscle cells 1,2. It inhibits actin-activated myosin ATPase and stabilizes the actin cytoskeleton. It also serves as a target in immunohistochemistry where it can be used for the identification of myoepithelial cells or the characterization of tumors.
Immunohistochemistry stains might be positive in the following lesions:
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