Biology:DGAT1

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Short description: Mammalian protein found in Homo sapiens


A representation of the 3D structure of the protein myoglobin showing turquoise α-helices.
Generic protein structure example


Diacylglycerol O-acyltransferase 1 is an enzyme that in humans is encoded by the DGAT1 gene.[1]

Function

This gene encodes a multipass transmembrane protein that functions as a key metabolic enzyme. The encoded protein catalyzes the conversion of diacylglycerol and fatty acyl CoA to triacylglycerol. This enzyme can also transfer acyl CoA to retinol. Activity of this protein may be associated with obesity and other metabolic diseases. [2][3] This enzyme is essential for lactation in mice,[3] and mutations in this gene affect the composition and volume of milk produced by both cattle[4] and goats.[5] Without this gene activity, infants who have a mutation in this gene are incapable of breaking down fat. This lack of capability to break down fat causes diarrhea and vomiting which eventually causes FTT (Failure to Thrive) and need of TPN (Total Parenteral Nutrition) if not given correct formula. Further this will cause protein losing enteropathy and very low albumin.[6]

See also

References

  1. "Entrez Gene: Diacylglycerol O-acyltransferase 1". https://www.ncbi.nlm.nih.gov/gene/8694. Retrieved 2016-08-28. 
  2. "Thematic review series: glycerolipids. DGAT enzymes and triacylglycerol biosynthesis". Journal of Lipid Research 49 (11): 2283–301. 2008. doi:10.1194/jlr.R800018-JLR200. PMID 18757836. 
  3. 3.0 3.1 "Obesity resistance and multiple mechanisms of triglyceride synthesis in mice lacking Dgat". Nature Genetics 25 (1): 87–90. May 2000. doi:10.1038/75651. PMID 10802663. 
  4. "Positional Candidate Cloning of a QTL in Dairy Cattle: Identification of a Missense Mutation in the Bovine DGAT1 Gene with Major Effect on Milk Yield and Composition". Genome Research 12 (2): 222–31. February 2002. doi:10.1101/gr.224202. PMID 11827942. 
  5. "A genome scan for milk production traits in dairy goats reveals two new mutations in Dgat1 reducing milk fat content". Scientific Reports 7 (1): 1872. May 2017. doi:10.1038/s41598-017-02052-0. PMID 28500343. Bibcode2017NatSR...7.1872M. 
  6. "Home". http://www.dgat1.org/. 

Further reading

  • "DGAT1 promoter polymorphism associated with alterations in body mass index, high density lipoprotein levels and blood pressure in Turkish women". Clinical Genetics 62 (1): 68–73. July 2002. doi:10.1034/j.1399-0004.2002.620109.x. PMID 12123490. 

This article incorporates text from the United States National Library of Medicine, which is in the public domain.