Biology:TWIST2

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Short description: Protein-coding gene in the species Homo sapiens


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

Twist-related protein 2 is a protein that in humans is encoded by the TWIST2 gene.[1][2][3] The protein encoded by this gene is a basic helix-loop-helix (bHLH) transcription factor and shares similarity with another bHLH transcription factor, TWIST1. bHLH transcription factors have been implicated in cell lineage determination and differentiation. It is thought that during osteoblast development, this protein may inhibit osteoblast maturation and maintain cells in a preosteoblast phenotype.[3]

Interactions

TWIST2 has been shown to interact with SREBF1.[4]

Clinical significance

Mutations in the TWIST2 gene that alter DNA-binding activity through both dominant-negative and gain-of-function effects are associated with ablepharon macrostomia syndrome and Barber–Say syndrome.[5]

References

  1. "Dermo-1: a novel twist-related bHLH protein expressed in the developing dermis". Dev Biol 172 (1): 280–92. Dec 1995. doi:10.1006/dbio.1995.0023. PMID 7589808. 
  2. "The locations of the H-twist and H-dermo-1 genes are distinct on the human genome". Biochim Biophys Acta 1360 (1): 1–2. Apr 1997. doi:10.1016/s0925-4439(96)00071-3. PMID 9061034. 
  3. 3.0 3.1 "Entrez Gene: TWIST2 twist homolog 2 (Drosophila)". https://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=117581. 
  4. Lee, Yun Sok; Lee Hyoung Ho; Park Jiyoung; Yoo Eung Jae; Glackin Carlotta A; Choi Young Il; Jeon Sung Ho; Seong Rho Hyun et al. (Dec 2003). "Twist2, a novel ADD1/SREBP1c interacting protein, represses the transcriptional activity of ADD1/SREBP1c". Nucleic Acids Res. (England) 31 (24): 7165–74. doi:10.1093/nar/gkg934. PMID 14654692. 
  5. Marchegiani, Shannon; Davis, Taylor; Tessadori, Federico; van Haaften, Gijs; Brancati, Francesco; Hoischen, Alexander; Huang, Haigen; Valkanas, Elise et al. (2015-07-02). "Recurrent Mutations in the Basic Domain of TWIST2 Cause Ablepharon Macrostomia and Barber-Say Syndromes". The American Journal of Human Genetics 97 (1): 99–110. doi:10.1016/j.ajhg.2015.05.017. ISSN 0002-9297. PMID 26119818. 

Further reading

External links

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