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Wiktionary
dyskerin

n. A human gene, ''Dyskeratosis congenita 1'', a small nucleolar ribonucleoprotein in which mutations are responsible for Zinsser-Cole-Engman syndrome.

Wikipedia
Dyskerin

H/ACA ribonucleoprotein complex subunit 4 is a protein that in humans is encoded by the DKC1 gene.