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EFTUD2 gene
URL of this page: https://medlineplus.gov/genetics/gene/eftud2/

EFTUD2 gene

elongation factor Tu GTP binding domain containing 2

Normal Function

The EFTUD2 gene provides instructions for making one part (subunit) of two complexes called the major and minor spliceosomes. Spliceosomes help process messenger RNA (mRNA), which is a chemical cousin of DNA that serves as a genetic blueprint for making proteins. The spliceosomes recognize and then remove regions called introns to help produce mature mRNA molecules.

Health Conditions Related to Genetic Changes

Mandibulofacial dysostosis with microcephaly

More than 50 EFTUD2 gene mutations have been identified in people who have mandibulofacial dysostosis with microcephaly (MFDM). This disorder causes malformations of the head and face, intellectual disability, and abnormalities affecting other areas of the body. These abnormalities include esophageal atresia, which is a blockage of the esophagus, and tracheoesophageal fistula, which is an abnormal connection between the esophagus and the trachea that allows fluids from the esophagus to get into the airways and interfere with breathing.

The EFTUD2 gene mutations that cause MFDM result in the production of little or no functional enzyme from one copy of the gene in each cell. A shortage of this enzyme likely impairs mRNA processing. The relationship between these mutations and the specific symptoms of MFDM is not well understood.

More About This Health Condition

Other Names for This Gene

  • 116 kDa U5 small nuclear ribonucleoprotein component
  • elongation factor Tu GTP-binding domain-containing protein 2
  • hSNU114
  • MFDGA
  • MFDM
  • SNRNP116
  • Snrp116
  • Snu114
  • SNU114 homolog
  • U5 snRNP-specific protein, 116 kDa
  • U5-116KD

Additional Information & Resources

Tests Listed in the Genetic Testing Registry

  • Tests of EFTUD2 From the National Institutes of Health

Scientific Articles on PubMed

  • PubMed From the National Institutes of Health

Catalog of Genes and Diseases from OMIM

  • ELONGATION FACTOR Tu GTP-BINDING DOMAIN-CONTAINING 2; EFTUD2

Gene and Variant Databases

  • NCBI Gene From the National Institutes of Health
  • ClinVar From the National Institutes of Health

References

  • Gordon CT, Petit F, Oufadem M, Decaestecker C, Jourdain AS, Andrieux J, Malan V, Alessandri JL, Baujat G, Baumann C, Boute-Benejean O, Caumes R, Delobel B, Dieterich K, Gaillard D, Gonzales M, Lacombe D, Escande F, Manouvrier-Hanu S, Marlin S, Mathieu-Dramard M, Mehta SG, Simonic I, Munnich A, Vekemans M, Porchet N, de Pontual L, Sarnacki S, Attie-Bitach T, Lyonnet S, Holder-Espinasse M, Amiel J. EFTUD2 haploinsufficiency leads to syndromic oesophageal atresia. J Med Genet. 2012 Dec;49(12):737-46. doi: 10.1136/jmedgenet-2012-101173. Citation on PubMed
  • Guion-Almeida ML, Zechi-Ceide RM, Vendramini S, Ju Nior AT. A new syndrome with growth and mental retardation, mandibulofacial dysostosis, microcephaly, and cleft palate. Clin Dysmorphol. 2006 Jul;15(3):171-174. doi: 10.1097/01.mcd.0000220603.09661.7e. Citation on PubMed
  • Lehalle D, Gordon CT, Oufadem M, Goudefroye G, Boutaud L, Alessandri JL, Baena N, Baujat G, Baumann C, Boute-Benejean O, Caumes R, Decaestecker C, Gaillard D, Goldenberg A, Gonzales M, Holder-Espinasse M, Jacquemont ML, Lacombe D, Manouvrier-Hanu S, Marlin S, Mathieu-Dramard M, Morin G, Pasquier L, Petit F, Rio M, Smigiel R, Thauvin-Robinet C, Vasiljevic A, Verloes A, Malan V, Munnich A, de Pontual L, Vekemans M, Lyonnet S, Attie-Bitach T, Amiel J. Delineation of EFTUD2 haploinsufficiency-related phenotypes through a series of 36 patients. Hum Mutat. 2014 Apr;35(4):478-85. doi: 10.1002/humu.22517. Epub 2014 Mar 5. Citation on PubMed
  • Lines M, Hartley T, MacDonald SK, Boycott KM. Mandibulofacial Dysostosis with Microcephaly. 2014 Jul 3 [updated 2023 Apr 6]. In: Adam MP, Feldman J, Mirzaa GM, Pagon RA, Wallace SE, Amemiya A, editors. GeneReviews(R) [Internet]. Seattle (WA): University of Washington, Seattle; 1993-2025. Available from http://www.ncbi.nlm.nih.gov/books/NBK214367/ Citation on PubMed
  • Lines MA, Huang L, Schwartzentruber J, Douglas SL, Lynch DC, Beaulieu C, Guion-Almeida ML, Zechi-Ceide RM, Gener B, Gillessen-Kaesbach G, Nava C, Baujat G, Horn D, Kini U, Caliebe A, Alanay Y, Utine GE, Lev D, Kohlhase J, Grix AW, Lohmann DR, Hehr U, Bohm D; FORGE Canada Consortium; Majewski J, Bulman DE, Wieczorek D, Boycott KM. Haploinsufficiency of a spliceosomal GTPase encoded by EFTUD2 causes mandibulofacial dysostosis with microcephaly. Am J Hum Genet. 2012 Feb 10;90(2):369-77. doi: 10.1016/j.ajhg.2011.12.023. Epub 2012 Feb 2. Citation on PubMed or Free article on PubMed Central
  • Voigt C, Megarbane A, Neveling K, Czeschik JC, Albrecht B, Callewaert B, von Deimling F, Hehr A, Falkenberg Smeland M, Konig R, Kuechler A, Marcelis C, Puiu M, Reardon W, Riise Stensland HM, Schweiger B, Steehouwer M, Teller C, Martin M, Rahmann S, Hehr U, Brunner HG, Ludecke HJ, Wieczorek D. Oto-facial syndrome and esophageal atresia, intellectual disability and zygomatic anomalies - expanding the phenotypes associated with EFTUD2 mutations. Orphanet J Rare Dis. 2013 Jul 24;8:110. doi: 10.1186/1750-1172-8-110. Citation on PubMed or Free article on PubMed Central
DNA helix

Genomic Location

The EFTUD2 gene is found on chromosome 17.

Related Health Topics

  • Genes and Gene Therapy
  • Genetic Disorders

MEDICAL ENCYCLOPEDIA

  • Genes
  • Genetics

Understanding Genetics

  • What is DNA?
  • What is a gene?
  • What is a gene variant and how do variants occur?

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