Keratin 9

KRT9
Identifiers
Aliases	KRT9, CK-9, EPPK, K9, keratin 9
External IDs	OMIM: 607606; MGI: 96696; HomoloGene: 133554; GeneCards: KRT9; OMA:KRT9 - orthologs
Gene location (Human)
Chr.	Chromosome 17 (human)
End	41,572,059 bp
Gene location (Mouse)
Chr.	Chromosome 11 (mouse)
End	100,084,072 bp
RNA expression pattern
	Top expressed in
	testicle; ; gonad; ; human penis; ; amniotic fluid; ; gingival epithelium; ; vulva; ; skin of thigh; ; skin of hip; ; skin of abdomen; ; muscle tissue;
	Top expressed in
	genital tubercle; ; dentate gyrus of hippocampal formation granule cell; ; striatum of neuraxis; ; superior frontal gyrus; ; hippocampus proper; ; primary visual cortex; ; olfactory bulb; ; cerebellar cortex; ; thymus;
	More reference expression data
	n/a
Gene ontology
Molecular function	structural constituent of cytoskeleton; structural molecule activity;
Cellular component	extracellular exosome; intermediate filament; membrane; nucleus; extracellular space; cytosol;
Biological process	intermediate filament organization; spermatogenesis; skin development; epidermis development; keratinization; cornification;
	Sources:Amigo / QuickGO
Orthologs
	3857
	107656
	ENSG00000171403
	ENSMUSG00000051617
	P35527
	Q6RHW0
	NM_000226
	NM_201255
	NP_000217
	NP_957707
	Wikidata
View/Edit Human	View/Edit Mouse

Keratin 9 is a protein that in humans is encoded by the KRT9 gene.

Keratin 9 is a type I cytokeratin. It is found only in the terminally differentiated epidermis of palms and soles. Mutations in the gene encoding this protein cause epidermolytic palmoplantar keratoderma.