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GATA6

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GATA6
Identifiers
AliasesGATA6, GATA binding protein 6
External IDsOMIM: 601656; MGI: 107516; HomoloGene: 68449; GeneCards: GATA6; OMA:GATA6 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_005257

NM_010258

RefSeq (protein)

NP_005248

NP_034388

Location (UCSC)Chr 18: 22.17 – 22.2 MbChr 18: 11.05 – 11.09 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Transcription factor GATA-6, also known as GATA-binding factor 6 (GATA6), is protein that in humans is encoded by the GATA6 gene.[5] The gene product preferentially binds (A/T/C)GAT(A/T)(A) of the consensus binding sequence.[6]

Clinical significance

Mutations in the gene have been linked with pancreatic agenesis and congenital heart defects.[7]

Lung Endodermal Epithelial Development

GATA-6, a zinc finger transcription factor, is important in the endodermal differentiation of organ tissues.[8] It is also indicated in proper lung development by controlling the late differentiation stages of alveolar epithelium and aquaporin-5 promoter activation. Furthermore, GATA-6 has been linked to the production of LIF, a cytokine that encourages proliferation of endodermal embryonic stem cells and blocks early epiblast differentiation. If left unregulated in the developing embryo, this cytokine production and chemical signal contributes to the phenotypes discussed further below.[9]

Upon the disruption of GATA-6 in an embryo, the distal lung epithelial development is stunted in transgenic mice models[8] The progenitor cells, or stem cells, for alveolar epithelial tissues develop and are specified appropriately, however further differentiation does not occur. Also the distal-proximal bronchiole development is affected, resulting in a reduced quantity of airway exchange sites.[8]

This branching deficit, which will cause bilateral pulmonary hypoplasia after birth, has been locally associated with areas lacking differentiated alveolar epithelium, implicating this phenotype as inherent to endodermal function, and thus may be indirectly linked to improper GATA-6 expression.[10][11] That is, a deficit of bronchiole branching may not be a result of direct transcriptional error in GATA-6, but rather a side effect of such an error.

See also

References

  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000141448Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000005836Ensembl, 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. ^ "Entrez Gene: GATA6 GATA binding protein 6".
  6. ^ Sakai Y, Nakagawa R, Sato R, Maeda M (1998). "Selection of DNA binding sites for human transcriptional regulator GATA-6". Biochem Biophys Res Commun. 250 (3): 682–688. doi:10.1006/bbrc.1998.9374. PMID 9784406.
  7. ^ Chao CS, McKnight KD, Cox KL, Chang AL, Kim SK, Feldman BJ (2015). "Novel GATA6 Mutations in Patients with Pancreatic Agenesis and Congenital Heart Malformations". PLOS ONE. 10 (2): e0118449. Bibcode:2015PLoSO..1018449C. doi:10.1371/journal.pone.0118449. PMC 4338276. PMID 25706805.{{cite journal}}: CS1 maint: unflagged free DOI (link)
  8. ^ a b c Yang H, Lu MM, Zhang L, Whitsett JA, Morrisey EE (May 2002). "GATA6 regulates differentiation of distal lung epithelium". Development. 129 (9): 2233–46. PMID 11959831.
  9. ^ Morgani SM, Brickman JM (October 2015). "LIF supports primitive endoderm expansion during pre-implantation development". Development. 142 (20): 3488–99. doi:10.1242/dev.125021. PMID 26395492.
  10. ^ Keijzer R, van Tuyl M, Meijers C, Post M, Tibboel D, Grosveld F, Koutsourakis M (February 2001). "The transcription factor GATA6 is essential for branching morphogenesis and epithelial cell differentiation during fetal pulmonary development". Development. 128 (4): 503–11. PMID 11171334.
  11. ^ Rennie J (2012). Rennie & Robertson's Textbook on Neonatology. Elsevier Health Sciences. ISBN 978-0-7020-3479-4.

Further reading