A protein extracted from epidermis and nervous tissue (glial fibrils), probably involved in keratinization.
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pseu·do·ker·a·tin -'ker-ət-ən n a protein (as neurokeratin) that occurs esp. in the skin and nerve sheaths and that like keratins is insoluble but is less resistant to enzymatic action than keratins
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pseu·do·ker·a·tin (soo″do-kerґə-tin) cytokeratin.Medical dictionary. 2011.