K9 a type I cytoskeletal keratin. The keratins are intermediate filament proteins responsible for the structural integrity of epithelial cells and are subdivided into cytokeratins and hair keratins. There are two types of cytoskeletal and microfibrillar keratin: type I (acidic; 40-55 kDa) [K9 to K20] and type II (neutral to basic; 56-70 kDa) [K1 to K8]. Both a basic and an acidic keratin are required for filament assembly. Note: This description may include information from UniProtKB.
Protein type: Cytoskeletal
Chromosomal Location of Human Ortholog: 17q21.2
Cellular Component:  cytosol; intermediate filament
Molecular Function:  structural constituent of cytoskeleton
Biological Process:  cornification; epidermis development; intermediate filament organization; keratinization; skin development; spermatogenesis
Disease: Palmoplantar Keratoderma, Epidermolytic
Reference #:  P35527 (UniProtKB)
Alt. Names/Synonyms: CK-9; cytokeratin 9; Cytokeratin-9; EPPK; K1C9; K9; keratin 9; Keratin, type I cytoskeletal 9; Keratin-9; KRT9; type I cytoskeletal 9
Gene Symbols: KRT9
Molecular weight: 62,064 Da
Basal Isoelectric point: 5.14  Predict pI for various phosphorylation states
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Protein Structure Not Found.

Cross-references to other databases:  STRING  |  cBioPortal  |  Wikipedia  |  neXtProt  |  Protein Atlas  |  BioGPS  |  Pfam  |  Phospho.ELM  |  NetworKIN  |  GeneCards  |  UniProtKB  |  Entrez-Gene  |  GenPept  |  Ensembl Gene