Plakophilin-1

Plakophilin-1 is a protein that in humans is encoded by the PKP1 gene.

PKP1
Available structures PDB Ortholog search: PDBe RCSB List of PDB id codes 1XM9
Identifiers
Aliases	PKP1, B6P, plakophilin 1, EDSFS
External IDs	OMIM: 601975; MGI: 1328359; HomoloGene: 253; GeneCards: PKP1; OMA:PKP1 - orthologs
Gene location (Human) Chr. Chromosome 1 (human) Band 1q32.1 Start 201,283,452 bp End 201,332,993 bp
Gene location (Mouse) Chr. Chromosome 1 (mouse) Band 1|1 E4 Start 135,799,133 bp End 135,846,945 bp
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in skin of arm skin of abdomen skin of leg skin of thigh gums gingival epithelium vulva skin of hip human penis nipple Top expressed in skin of external ear hair follicle lip skin of back esophagus conjunctival fornix skin of abdomen molar corneal stroma condyle More reference expression data BioGPS n/a
Gene ontology Molecular function structural constituent of skin epidermis protein binding intermediate filament binding signal transducer activity lamin binding cadherin binding Cellular component intracellular membrane-bounded organelle cell junction intermediate filament nucleoplasm plasma membrane nucleus desmosome cornified envelope ficolin-1-rich granule membrane messenger ribonucleoprotein complex cytoplasm cell-cell junction Biological process multicellular organism development intermediate filament bundle assembly signal transduction cell adhesion keratinization neutrophil degranulation cornification positive regulation of gene expression negative regulation of mRNA catabolic process cell-cell adhesion cell-cell junction assembly Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 5317 18772 Ensembl ENSG00000081277 ENSMUSG00000026413 UniProt Q13835 P97350 RefSeq (mRNA) NM_001005337 NM_000299 NM_019645 NM_001313701 RefSeq (protein) NP_000290 NP_001005337 NP_001300630 NP_062619 Location (UCSC) Chr 1: 201.28 – 201.33 Mb Chr 1: 135.8 – 135.85 Mb PubMed search
Wikidata
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Function

This gene encodes a member of the arm-repeat (armadillo) and plakophilin gene families. Plakophilin proteins contain numerous armadillo repeats, localize to cell desmosomes and nuclei, and participate in linking cadherins to intermediate filaments in the cytoskeleton. This protein may be involved in molecular recruitment and stabilization during desmosome formation. Mutations in this gene have been associated with the ectodermal dysplasia/skin fragility syndrome.

Interactions

PKP1 has been shown to interact with Desmoplakin.

See also

• Skin fragility syndrome

Further reading

• Hatzfeld M, Kristjansson GI, Plessmann U, Weber K (1995). "Band 6 protein, a major constituent of desmosomes from stratified epithelia, is a novel member of the armadillo multigene family". J. Cell Sci. 107. ( Pt 8) (8): 2259–70. doi:10.1242/jcs.107.8.2259. PMID 7527055.
• Heid HW, Schmidt A, Zimbelmann R, Schäfer S, Winter-Simanowski S, Stumpp S, Keith M, Figge U, Schnölzer M, Franke WW (1995). "Cell type-specific desmosomal plaque proteins of the plakoglobin family: plakophilin 1 (band 6 protein)". Differentiation. 58 (2): 113–31. doi:10.1046/j.1432-0436.1995.5820113.x. PMID 7890138.
• McGrath JA, McMillan JR, Shemanko CS, Runswick SK, Leigh IM, Lane EB, Garrod DR, Eady RA (1997). "Mutations in the plakophilin 1 gene result in ectodermal dysplasia/skin fragility syndrome". Nat. Genet. 17 (2): 240–4. doi:10.1038/ng1097-240. PMID 9326952. S2CID 23284411.
• Schmidt A, Langbein L, Rode M, Prätzel S, Zimbelmann R, Franke WW (1998). "Plakophilins 1a and 1b: widespread nuclear proteins recruited in specific epithelial cells as desmosomal plaque components". Cell Tissue Res. 290 (3): 481–99. doi:10.1007/s004410050956. PMID 9369526. S2CID 6183059.
• Smith EA, Fuchs E (1998). "Defining the interactions between intermediate filaments and desmosomes". J. Cell Biol. 141 (5): 1229–41. doi:10.1083/jcb.141.5.1229. PMC 2137181. PMID 9606214.
• Bonné S, van Hengel J, van Roy F (1998). "Chromosomal mapping of human armadillo genes belonging to the p120(ctn)/plakophilin subfamily". Genomics. 51 (3): 452–4. doi:10.1006/geno.1998.5398. PMID 9721216.
• Schmidt A, Langbein L, Prätzel S, Rode M, Rackwitz HR, Franke WW (1999). "Plakophilin 3--a novel cell-type-specific desmosomal plaque protein". Differentiation. 64 (5): 291–306. doi:10.1046/j.1432-0436.1999.6450291.x. PMID 10374265.
• Hofmann I, Mertens C, Brettel M, Nimmrich V, Schnölzer M, Herrmann H (2000). "Interaction of plakophilins with desmoplakin and intermediate filament proteins: an in vitro analysis". J. Cell Sci. 113. ( Pt 13) (13): 2471–83. doi:10.1242/jcs.113.13.2471. PMID 10852826.
• Hofmann I, Mücke N, Reed J, Herrmann H, Langowski J (2000). "Physical characterization of plakophilin 1 reconstituted with and without zinc". Eur. J. Biochem. 267 (14): 4381–9. doi:10.1046/j.1432-1327.2000.01483.x. PMID 10880961.
• Whittock NV, Haftek M, Angoulvant N, Wolf F, Perrot H, Eady RA, McGrath JA (2000). "Genomic amplification of the human plakophilin 1 gene and detection of a new mutation in ectodermal dysplasia/skin fragility syndrome". J. Invest. Dermatol. 115 (3): 368–74. doi:10.1046/j.1523-1747.2000.00082.x. PMID 10951270.
• Chen X, Bonne S, Hatzfeld M, van Roy F, Green KJ (2002). "Protein binding and functional characterization of plakophilin 2. Evidence for its diverse roles in desmosomes and beta -catenin signaling". J. Biol. Chem. 277 (12): 10512–22. doi:10.1074/jbc.M108765200. PMID 11790773.
• Hamada T, South AP, Mitsuhashi Y, Kinebuchi T, Bleck O, Ashton GH, Hozumi Y, Suzuki T, Hashimoto T, Eady RA, McGrath JA (2002). "Genotype-phenotype correlation in skin fragility-ectodermal dysplasia syndrome resulting from mutations in plakophilin 1". Exp. Dermatol. 11 (2): 107–14. doi:10.1034/j.1600-0625.2002.110202.x. PMID 11994137. S2CID 37777985.
• McMillan JR, Haftek M, Akiyama M, South AP, Perrot H, McGrath JA, Eady RA, Shimizu H (2003). "Alterations in desmosome size and number coincide with the loss of keratinocyte cohesion in skin with homozygous and heterozygous defects in the desmosomal protein plakophilin 1". J. Invest. Dermatol. 121 (1): 96–103. doi:10.1046/j.1523-1747.2003.12324.x. PMID 12839569.
• South AP, Wan H, Stone MG, Dopping-Hepenstal PJ, Purkis PE, Marshall JF, Leigh IM, Eady RA, Hart IR, McGrath JA (2004). "Lack of plakophilin 1 increases keratinocyte migration and reduces desmosome stability". J. Cell Sci. 116 (Pt 16): 3303–14. doi:10.1242/jcs.00636. PMID 12840072.
• Cheng X, Mihindukulasuriya K, Den Z, Kowalczyk AP, Calkins CC, Ishiko A, Shimizu A, Koch PJ (2004). "Assessment of splice variant-specific functions of desmocollin 1 in the skin". Mol. Cell. Biol. 24 (1): 154–63. doi:10.1128/MCB.24.1.154-163.2004. PMC 303333. PMID 14673151.
• Choi HJ, Weis WI (2005). "Structure of the armadillo repeat domain of plakophilin 1". J. Mol. Biol. 346 (1): 367–76. doi:10.1016/j.jmb.2004.11.048. PMID 15663951.
• Wahl JK (2005). "A role for plakophilin-1 in the initiation of desmosome assembly". J. Cell. Biochem. 96 (2): 390–403. doi:10.1002/jcb.20514. PMID 15988759. S2CID 25717190.
• Zheng R, Bu DF, Zhu XJ (2006). "Compound heterozygosity for new splice site mutations in the plakophilin 1 gene (PKP1) in a Chinese case of ectodermal dysplasia-skin fragility syndrome". Acta Derm. Venereol. 85 (5): 394–9. doi:10.1080/00015550510037684. PMID 16159729.