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Plakophilin 1
Protein PKP1 PDB 1xm9.png
PDB rendering based on 1xm9.
Available structures
PDB Ortholog search: PDBe, RCSB
Symbols PKP1 ; B6P
External IDs OMIM601975 MGI1328359 HomoloGene253 GeneCards: PKP1 Gene
Species Human Mouse
Entrez 5317 18772
Ensembl ENSG00000081277 ENSMUSG00000026413
UniProt Q13835 P97350
RefSeq (mRNA) NM_000299 NM_019645
RefSeq (protein) NP_000290 NP_062619
Location (UCSC) Chr 1:
201.25 – 201.3 Mb
Chr 1:
135.87 – 135.92 Mb
PubMed search [1] [2]

Plakophilin-1 is a protein that in humans is encoded by the PKP1 gene.[1][2]


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.[2]


PKP1 has been shown to interact with Desmoplakin.[3]

See also[edit]


  1. ^ Cowley CM, Simrak D, Spurr NK, Arnemann J, Buxton RS (September 1997). "The plakophilin 1 (PKP1) and plakoglobin (JUP) genes map to human chromosomes 1q and 17, respectively". Hum Genet 100 (3-4): 486–8. doi:10.1007/s004390050539. PMID 9272178. 
  2. ^ a b "Entrez Gene: PKP1 plakophilin 1 (ectodermal dysplasia/skin fragility syndrome)". 
  3. ^ Hofmann I, Mertens C, Brettel M, Nimmrich V, Schnölzer M, Herrmann H (July 2000). "Interaction of plakophilins with desmoplakin and intermediate filament proteins: an in vitro analysis". J. Cell. Sci. 113. ( Pt 13): 2471–83. PMID 10852826.  Vancouver style error (help)

Further reading[edit]

  • 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): 2259–70. PMID 7527055. 
  • Heid HW, Schmidt A, Zimbelmann R, Schäfer S, Winter-Simanowski S, Stumpp S et al. (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.  Vancouver style error (help)
  • McGrath JA, McMillan JR, Shemanko CS, Runswick SK, Leigh IM, Lane EB et al. (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. 
  • 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.  Vancouver style error (help)
  • 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.  Vancouver style error (help)
  • 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.  Vancouver style error (help)
  • 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): 2471–83. PMID 10852826.  Vancouver style error (help)
  • 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.  Vancouver style error (help)
  • Whittock NV, Haftek M, Angoulvant N, Wolf F, Perrot H, Eady RA et al. (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 et al. (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. 
  • McMillan JR, Haftek M, Akiyama M, South AP, Perrot H, McGrath JA et al. (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 et al. (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 et al. (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. 
  • 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.