Fibrocystin

Mammalian protein
Fibrocystin
Identifiers
SymbolFibrocystin
InterProIPR029927
Membranome632
PKHD1
Identifiers
AliasesPKHD1, ARPKD, FCYT, TIGM1, polycystic kidney and hepatic disease 1 (autosomal recessive), fibrocystin/polyductin, FPC, PKD4, PKHD1 ciliary IPT domain containing fibrocystin/polyductin
External IDsOMIM: 606702; MGI: 2155808; HomoloGene: 16336; GeneCards: PKHD1; OMA:PKHD1 - orthologs
Gene location (Human)
Chromosome 6 (human)
Chr.Chromosome 6 (human)[1]
Chromosome 6 (human)
Genomic location for PKHD1
Genomic location for PKHD1
Band6p12.3-p12.2Start51,615,299 bp[1]
End52,087,613 bp[1]
Gene location (Mouse)
Chromosome 1 (mouse)
Chr.Chromosome 1 (mouse)[2]
Chromosome 1 (mouse)
Genomic location for PKHD1
Genomic location for PKHD1
Band1|1 A4Start20,128,003 bp[2]
End20,688,288 bp[2]
RNA expression pattern
Bgee
HumanMouse (ortholog)
Top expressed in
  • renal medulla

  • pancreatic epithelial cell

  • body of pancreas

  • corpus epididymis

  • human kidney

  • testicle

  • tibialis anterior muscle

  • caput epididymis

  • islet of Langerhans

  • right lobe of liver
Top expressed in
  • transitional epithelium of urinary bladder

  • human kidney

  • renal calyx

  • efferent ductule

  • medullary collecting duct

  • inner renal medulla

  • right kidney

  • left lobe of liver

  • morula

  • pancreas
More reference expression data
BioGPS
n/a
Gene ontology
Molecular function
  • protein binding
  • signaling receptor activity
Cellular component
  • cytoplasm
  • integral component of membrane
  • ciliary basal body
  • centrosome
  • cell projection
  • membrane
  • plasma membrane
  • spindle
  • chromosome
  • apical plasma membrane
  • anchored component of external side of plasma membrane
  • perinuclear region of cytoplasm
  • mitotic spindle
  • chromosome, centromeric region
  • extracellular exosome
  • cytoskeleton
  • cilium
Biological process
  • negative regulation of protein kinase B signaling
  • regulation of centrosome duplication
  • regulation of TOR signaling
  • kidney development
  • cellular calcium ion homeostasis
  • negative regulation of apoptotic process
  • positive regulation of cell population proliferation
  • regulation of ERK1 and ERK2 cascade
  • negative regulation of NF-kappaB transcription factor activity
  • homeostatic process
  • cilium assembly
  • cell-cell adhesion
Sources:Amigo / QuickGO
Orthologs
SpeciesHumanMouse
Entrez

5314

241035

Ensembl

ENSG00000170927

ENSMUSG00000043760

UniProt

P08F94

E9PZ36

RefSeq (mRNA)

NM_138694
NM_170724

NM_153179

RefSeq (protein)

NP_619639
NP_733842

NP_694819

Location (UCSC)Chr 6: 51.62 – 52.09 MbChr 1: 20.13 – 20.69 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Fibrocystin is a large, receptor-like protein that is thought to be involved in the tubulogenesis and/or maintenance of duct-lumen architecture of epithelium.[5] FPC associates with the primary cilia of epithelial cells and co-localizes with the Pkd2 gene product polycystin-2 (PC2), suggesting that these two proteins may function in a common molecular pathway.[6]

Pathology

Mutations of its encoding gene (chromosomal locus 6p12.2) can cause autosomal recessive polycystic kidney disease. PKHD1 gene codes for fibrocystin. Fibrocystin is found in the epithelial cell of both the renal tubule and the bile ducts. A mutation in PKHD1 (can be autosomal recessive pattern or spontaneous mutations) leading to a deficiency in fibrocystin causes characteristic polycystic dilation of both structures.

References

  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000170927 – Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000043760 – Ensembl, May 2017
  3. ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. ^ Zhang M, Mai W, Li C, Cho S, Hao C, Moeckel G, Zhao R, Kim I, Wang J, Xiong H, Wang H, Sato Y, Wu Y, Nakanuma Y, Lilova M, Pei Y, Harris R, Li S, Coffey R, Sun L, Wu D, Chen X, Breyer M, Zhao Z, McKanna J, Wu G (2004). "PKHD1 protein encoded by the gene for autosomal recessive polycystic kidney disease associates with basal bodies and primary cilia in renal epithelial cells". Proc Natl Acad Sci USA. 101 (8): 2311–2316. Bibcode:2004PNAS..101.2311Z. doi:10.1073/pnas.0400073101. PMC 356947. PMID 14983006.
  6. ^ Kim, Ingyu; Fu, Yulong; Hui, Kwokyin; Moeckel, Gilbert; Mai, Weiyi; Li, Cunxi; Liang, Dan; Zhao, Ping; Ma, Jie; Chen, Xing-Zhen; George, Alfred L.; Coffey, Robert J.; Feng, Zhong-Ping; Wu, Guanqing (March 2008). "Fibrocystin/Polyductin Modulates Renal Tubular Formation by Regulating Polycystin-2 Expression and Function". Journal of the American Society of Nephrology. 19 (3): 455–468. doi:10.1681/ASN.2007070770. PMC 2391052. PMID 18235088.
  • GeneReviews/NIH/NCBI/UW entry on Polycystic Kidney Disease, Autosomal Recessive
  • fibrocystin+protein,+human at the U.S. National Library of Medicine Medical Subject Headings (MeSH)
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