Keratin 6B

Last updated
keratin 6B
Identifiers
SymbolKRT6B
NCBI gene 3854
HGNC 6444
OMIM 148042
RefSeq NM_005555
UniProt P04259
Other data
Locus Chr. 12 q12-q21

Keratin 6B is a type II cytokeratin, one of a number of isoforms of keratin 6. It is found with keratin 16 and/or keratin 17 in the hair follicles, the filiform papillae of the tongue and the epithelial lining of oral mucosa and esophagus. This keratin 6 isoform is thought be less abundant than the closely related keratin 6A protein. Mutations in the gene encoding this protein have been associated with pachyonychia congenita, an inherited disorder of the epithelial tissues in which this keratin is expressed, particularly leading to structural abnormalities of the nails, the epidermis of the palms and soles, and oral epithelia. Keratin 6B is associated with the PC-K6B subtype of pachyonychia congenita. [1] [2] [3]

Related Research Articles

Keratin 6A

Keratin 6A is one of the 27 different type II keratins expressed in humans. Keratin 6A was the first type II keratin sequence determined. Analysis of the sequence of this keratin together with that of the first type I keratin led to the discovery of the four helical domains in the central rod of keratins. In humans Keratin 6A is encoded by the KRT6A gene.

Keratin 4

Keratin, type I cytoskeletal 4 also known as cytokeratin-4 (CK-4) or keratin-4 (K4) is a protein that in humans is encoded by the KRT4 gene.

Keratin 3

Keratin 3 also known as cytokeratin 3 is a protein that in humans is encoded by the KRT3 gene. Keratin 3 is a type II cytokeratin. It is specifically found in the corneal epithelium together with keratin 12.

Keratin 13

Keratin 13 is a protein that in humans is encoded by the KRT13 gene.

Keratin 12

Keratin 12 is a protein that in humans is encoded by the KRT12 gene.

Keratin 10

Keratin, type I cytoskeletal 10 also known as cytokeratin-10 (CK-10) or keratin-10 (K10) is a protein that in humans is encoded by the KRT10 gene. Keratin 10 is a type I keratin.

Keratin 17

Keratin, type I cytoskeletal 17 is a protein that in humans is encoded by the KRT17 gene.

Keratin 16

Keratin 16 is a protein that in humans is encoded by the KRT16 gene.

IRF6

Interferon regulatory factor 6 also known as IRF6 is a protein that in humans is encoded by the IRF6 gene.

Na<sub>v</sub>1.4

Sodium channel protein type 4 subunit alpha is a protein that in humans is encoded by the SCN4A gene.

Pachyonychia congenita Medical condition

Pachyonychia congenita is a rare group of autosomal dominant skin disorders that are caused by a mutation in one of five different keratin genes. Pachyonychia congenita is often associated with thickened toenails, plantar keratoderma, and plantar pain.

Keratin 6C

Keratin 6C, is a type II cytokeratin, one of a number of isoforms of keratin 6 encoded by separate genes located within the type II keratin gene cluster on human chromosome 12q. This gene was uncovered recently by the Human Genome Project and its expression patterns in humans remains unknown.

CLCN1

The CLCN family of voltage-dependent chloride channel genes comprises nine members which demonstrate quite diverse functional characteristics while sharing significant sequence homology. The protein encoded by this gene regulates the electric excitability of the skeletal muscle membrane. Mutations in this gene cause two forms of inherited human muscle disorders: recessive generalized myotonia congenita (Becker) and dominant myotonia (Thomsen).

Tropomyosin 3

Tropomyosin alpha-3 chain is a protein that in humans is encoded by the TPM3 gene.

Laminin, gamma 2

Laminin subunit gamma-2 is a protein that in humans is encoded by the LAMC2 gene.

Endothelin 3

Endothelin-3 is a protein that in humans is encoded by the EDN3 gene.

FLNB

Filamin B, beta (FLNB), also known as Filamin B, beta , is a cytoplasmic protein which in humans is encoded by the FLNB gene.

HPS1

Hermansky–Pudlak syndrome 1 protein is a protein that in humans is encoded by the HPS1 gene.

INVS

Inversin is a protein that in humans is encoded by the INVS gene.

Sodium-dependent neutral amino acid transporter B(0)AT1

Sodium-dependent neutral amino acid transporter B(0)AT1 is a protein that in humans is encoded by the SLC6A19 gene.

References

  1. McLean WH, Rugg EL, Lunny DP, et al. (March 1995). "Keratin 16 and keratin 17 mutations cause pachyonychia congenita". Nat. Genet. 9 (3): 273–8. doi:10.1038/ng0395-273. PMID   7539673. S2CID   1873772.
  2. Bowden PE, Haley JL, Kansky A, Rothnagel JA, Jones DO, Turner RJ (July 1995). "Mutation of a type II keratin gene (K6a) in pachyonychia congenita". Nat. Genet. 10 (3): 363–5. doi:10.1038/ng0795-363. PMID   7545493. S2CID   26060130.
  3. Smith FJ, Jonkman MF, van Goor H, et al. (July 1998). "A mutation in human keratin K6b produces a phenocopy of the K17 disorder pachyonychia congenita type 2". Hum. Mol. Genet. 7 (7): 1143–8. doi: 10.1093/hmg/7.7.1143 . PMID   9618173.