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ATP8B1
Identifiers
Aliases	ATP8B1, ATPIC, BRIC, FIC1, ICP1, PFIC, PFIC1, ATPase phospholipid transporting 8B1
External IDs	OMIM: 602397; MGI: 1859665; HomoloGene: 21151; GeneCards: ATP8B1; OMA:ATP8B1 - orthologs
Gene location (Human) Chr. Chromosome 18 (human) Band 18q21.31 Start 57,646,426 bp End 57,803,315 bp
Gene location (Mouse) Chr. Chromosome 18 (mouse) Band 18|18 E1 Start 64,662,038 bp End 64,794,338 bp
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in cardia nipple renal medulla pylorus ventral tegmental area trigeminal ganglion buccal mucosa cell superior surface of tongue superior vestibular nucleus subthalamic nucleus Top expressed in epithelium of small intestine decidua left colon epithelium of stomach transitional epithelium of urinary bladder jejunum cervix ileum lobe of prostate islet of Langerhans More reference expression data BioGPS More reference expression data
Gene ontology Molecular function nucleotide binding cardiolipin binding lipid transporter activity metal ion binding protein binding ATPase-coupled intramembrane lipid transporter activity hydrolase activity ATP binding magnesium ion binding aminophospholipid flippase activity Cellular component integral component of membrane Golgi apparatus cell projection membrane plasma membrane integral component of plasma membrane stereocilium brush border membrane apical plasma membrane endoplasmic reticulum Biological process regulation of microvillus assembly lipid transport Golgi organization xenobiotic transmembrane transport bile acid metabolic process phospholipid transport hearing ion transmembrane transport inner ear receptor cell development phospholipid translocation bile acid and bile salt transport vestibulocochlear nerve formation negative regulation of transcription, DNA-templated aminophospholipid transport Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 5205 54670 Ensembl ENSG00000081923 ENSMUSG00000039529 UniProt O43520 Q148W0 RefSeq (mRNA) NM_005603 NM_001374385 NM_001374386 NM_001001488 RefSeq (protein) NP_005594 NP_001001488 Location (UCSC) Chr 18: 57.65 – 57.8 Mb Chr 18: 64.66 – 64.79 Mb PubMed search
Wikidata
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Probable phospholipid-transporting ATPase IC is an enzyme that in humans is encoded by the ATP8B1 gene. This protein is associated with progressive familial intrahepatic cholestasis type 1 as well as benign recurrent intrahepatic cholestasis.

Function

This gene encodes a member of the P-type cation transport ATPase family and specifically belongs to the subfamily of aminophospholipid-transporting ATPases. This protein is highly expressed in the small intestine, stomach, pancreas, and prostate and is also found in cholangiocytes and the canalicular membranes of hepatocytes in the liver. The aminophospholipid translocases transport phosphatidylserine and phosphatidylethanolamine from one side of a bilayer to another. Mutations in this gene may result in progressive familial intrahepatic cholestasis type 1 and in benign recurrent intrahepatic cholestasis. Exactly how mutations result in these diseases is not currently understood.

References

1. ^ GRCh38: Ensembl release 89: ENSG00000081923 – Ensembl, May 2017
2. ^ GRCm38: Ensembl release 89: ENSMUSG00000039529 – 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. Bull LN, van Eijk MJ, Pawlikowska L, DeYoung JA, Juijn JA, Liao M, et al. (Mar 1998). "A gene encoding a P-type ATPase mutated in two forms of hereditary cholestasis". Nat Genet. 18 (3): 219–24. doi:10.1038/ng0398-219. PMID 9500542. S2CID 9897047.
6. Carlton VE, Knisely AS, Freimer NB (Oct 1995). "Mapping of a locus for progressive familial intrahepatic cholestasis (Byler disease) to 18q21-q22, the benign recurrent intrahepatic cholestasis region". Hum Mol Genet. 4 (6): 1049–53. doi:10.1093/hmg/4.6.1049. PMID 7655458.
7. ^ "Entrez Gene: ATP8B1 ATPase, Class I, type 8B, member 1".
8. Klomp L.W., Vargas J.C., van Mil S.W., Pawlikowska L, Strautnieks SS, Van Eijk MJ, et al. (July 2004). "Characterization of mutations in ATP8B1 associated with hereditary cholestasis" (PDF). Hepatology. 40 (1): 27–38. doi:10.1002/hep.20285. PMID 15239083. S2CID 45979358.
9. Jansen PL, Müller M (July 2000). "The molecular genetics of familial intrahepatic cholestasis". Gut. 47 (1): 1–5. doi:10.1136/gut.47.1.1. PMC 1727973. PMID 10861251.
10. Eppens EF, van Mil SW, de Vree JM, Mok KS, Juijn JA, Oude Elferink RP, et al. (October 2001). "FIC1, the protein affected in two forms of hereditary cholestasis, is localized in the cholangiocyte and the canalicular membrane of the hepatocyte". J. Hepatol. 35 (4): 436–43. doi:10.1016/S0168-8278(01)00158-1. PMID 11682026.

Further reading

• Knisely AS (2000). "Progressive familial intrahepatic cholestasis: a personal perspective". Pediatr. Dev. Pathol. 3 (2): 113–25. doi:10.1007/s100240050016 (inactive 1 November 2024). PMID 10679031.{{cite journal}}: CS1 maint: DOI inactive as of November 2024 (link)
• Harris MJ, Le Couteur DG, Arias IM (2006). "Progressive familial intrahepatic cholestasis: genetic disorders of biliary transporters". J. Gastroenterol. Hepatol. 20 (6): 807–17. doi:10.1111/j.1440-1746.2005.03743.x. PMID 15946126. S2CID 21480442.
• Clayton RJ, Iber FL, Ruebner BH, McKusick VA (1969). "Byler disease. Fatal familial intrahepatic cholestasis in an Amish kindred". Am. J. Dis. Child. 117 (1): 112–24. doi:10.1001/archpedi.1969.02100030114014. PMID 5762004.
• Houwen RH, Baharloo S, Blankenship K, Raeymaekers P, Juyn J, Sandkuijl LA, et al. (1995). "Genome screening by searching for shared segments: mapping a gene for benign recurrent intrahepatic cholestasis". Nat. Genet. 8 (4): 380–6. doi:10.1038/ng1294-380. hdl:1765/55192. PMID 7894490. S2CID 8131209.
• Halleck MS, Pradhan D, Blackman C, Berkes C, Williamson P, Schlegel RA (1998). "Multiple members of a third subfamily of P-type ATPases identified by genomic sequences and ESTs". Genome Res. 8 (4): 354–61. doi:10.1101/gr.8.4.354. PMID 9548971.
• Tygstrup N, Steig BA, Juijn JA, Bull LN, Houwen RH (1999). "Recurrent familial intrahepatic cholestasis in the Faeroe Islands. Phenotypic heterogeneity but genetic homogeneity". Hepatology. 29 (2): 506–8. doi:10.1002/hep.510290214. PMID 9918928. S2CID 37536841.
• Halleck MS, Lawler JF JR, Blackshaw S, Gao L, Nagarajan P, Hacker C, et al. (2001). "Differential expression of putative transbilayer amphipath transporters". Physiol. Genomics. 1 (3): 139–50. doi:10.1152/physiolgenomics.1999.1.3.139. PMID 11015572. S2CID 762447.
• Klomp LW, Bull LN, Knisely AS, Vanderdoelen M, Juijn J, Berger R, et al. (2001). "A missense mutation in FIC1 is associated with greenland familial cholestasis". Hepatology. 32 (6): 1337–41. doi:10.1053/jhep.2000.20520. PMID 11093741. S2CID 31234172.
• Strausberg RL, Feingold EA, Grouse LH, Derge JG, Klausner RD, Collins FS, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. Bibcode:2002PNAS...9916899M. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
• Harris MJ, Arias IM (2003). "FIC1, a P-type ATPase linked to cholestatic liver disease, has homologues (ATP8B2 and ATP8B3) expressed throughout the body". Biochim. Biophys. Acta. 1633 (2): 127–31. doi:10.1016/S1388-1981(03)00107-0. PMID 12880872.
• Chen F, Ananthanarayanan M, Emre S, Neimark E, Bull LN, Knisely A, et al. (2004). "Progressive familial intrahepatic cholestasis, type 1, is associated with decreased farnesoid X receptor activity". Gastroenterology. 126 (3): 756–64. doi:10.1053/j.gastro.2003.12.013. PMID 14988830.
• Gerhard DS, Wagner L, Feingold EA, Shenmen CM, Grouse LH, Schuler G, et al. (2004). "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)". Genome Res. 14 (10B): 2121–7. doi:10.1101/gr.2596504. PMC 528928. PMID 15489334.
• Demeilliers C, Jacquemin E, Barbu V, Mergey M, Paye F, Fouassier L, et al. (2006). "Altered hepatobiliary gene expressions in PFIC1: ATP8B1 gene defect is associated with CFTR downregulation". Hepatology. 43 (5): 1125–34. doi:10.1002/hep.21160. PMID 16628629. S2CID 19185288.

External links

• ATP8B1+protein,+human at the U.S. National Library of Medicine Medical Subject Headings (MeSH)
• Human ATP8B1 genome location and ATP8B1 gene details page in the UCSC Genome Browser.

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