TGFB induced factor homeobox 1
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A TGIF1 gene provides instructions for making a protein called TG-interacting factor. This protein is important for normal development of the front part of the brain (forebrain). TG-interacting factor is a transcription factor, which means that it regulates the activity of certain genes. This protein turns off genes by attaching (binding) to specific regions of DNA or by interacting with other DNA-binding proteins.
Normal function
A TGIF1 gene provides instructions for making a protein called TG-interacting factor. This protein is important for normal development of the front part of the brain (forebrain). TG-interacting factor is a transcription factor, which means that it regulates the activity of certain genes. This protein turns off genes by attaching (binding) to specific regions of DNA or by interacting with other DNA-binding proteins.
TG-interacting factor regulates signaling pathways that are important for embryonic development. This protein blocks the signals of the transforming growth factor beta (TGF-β) pathway. This signaling pathway transmits chemical signals from the cell surface to the nucleus, which allows the environment outside the cell to affect how the cell produces other proteins. TG-interacting factor also blocks a molecule called retinoic acid from regulating gene activity. Retinoic acid, a form of vitamin A, binds to a group of transcription factors that regulate a number of genes important for early development. By blocking these signaling pathways, TG-interacting factor ensures that certain genes are turned off at the proper time.
Conditions referring to this gene or chromosome
Other names
5'-TG-3' interacting factor
5'-TG-3'-interacting factor 1
homeobox protein TGIF
homeobox protein TGIF1
HPE4
MGC39747
MGC5066
TALE homeobox TG-interacting factor
TGFB-induced factor homeobox 1
TGIF
TGIF1_HUMAN
transforming growth factor-beta-induced factor
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Leitura adicional e referências
- TGFB induced factor homeobox 1; MedlinePlus, National Library of Medicine.
- Aguilella C, Dubourg C, Attia-Sobol J, Vigneron J, Blayau M, Pasquier L, Lazaro L, Odent S, David V. Molecular screening of the TGIF gene in holoprosencephaly: identification of two novel mutations. Hum Genet. 2003 Feb;112(2):131-4. doi: 10.1007/s00439-002-0862-8. Epub 2002 Nov 21.
- Dubourg C, Bendavid C, Pasquier L, Henry C, Odent S, David V. Holoprosencephaly. Orphanet J Rare Dis. 2007 Feb 2;2:8. doi: 10.1186/1750-1172-2-8.
- El-Jaick KB, Powers SE, Bartholin L, Myers KR, Hahn J, Orioli IM, Ouspenskaia M, Lacbawan F, Roessler E, Wotton D, Muenke M. Functional analysis of mutations in TGIF associated with holoprosencephaly. Mol Genet Metab. 2007 Jan;90(1):97-111. doi: 10.1016/j.ymgme.2006.07.011. Epub 2006 Sep 7.
- Gripp KW, Wotton D, Edwards MC, Roessler E, Ades L, Meinecke P, Richieri-Costa A, Zackai EH, Massague J, Muenke M, Elledge SJ. Mutations in TGIF cause holoprosencephaly and link NODAL signalling to human neural axis determination. Nat Genet. 2000 Jun;25(2):205-8. doi: 10.1038/76074.
- Roessler E, Muenke M. The molecular genetics of holoprosencephaly. Am J Med Genet C Semin Med Genet. 2010 Feb 15;154C(1):52-61. doi: 10.1002/ajmg.c.30236.
- Solomon BD, Mercier S, Velez JI, Pineda-Alvarez DE, Wyllie A, Zhou N, Dubourg C, David V, Odent S, Roessler E, Muenke M. Analysis of genotype-phenotype correlations in human holoprosencephaly. Am J Med Genet C Semin Med Genet. 2010 Feb 15;154C(1):133-41. doi: 10.1002/ajmg.c.30240.
- Tekendo-Ngongang C, Muenke M, Kruszka P. Holoprosencephaly Overview. 2000 Dec 27 [updated 2026 Jun 9]. In: Adam MP, Bick S, Mirzaa GM, Wallace SE, Amemiya A, editors. GeneReviews(R) [Internet]. Seattle (WA): University of Washington, Seattle; 1993-2026. Available from http://www.ncbi.nlm.nih.gov/books/NBK1530/
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