Crystal Structure of human Brachyury G177D variant in complex with (S)-N-(3-aminopropyl)-3-((1-(2-fluorophenyl)-2-oxopyrrolidin-3-yl)amino)-N-methylbenzamide (CF-2-125)Crystal Structure of human Brachyury G177D variant in complex with (S)-N-(3-aminopropyl)-3-((1-(2-fluorophenyl)-2-oxopyrrolidin-3-yl)amino)-N-methylbenzamide (CF-2-125)

Structural highlights

8a7n is a 1 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.9Å
Ligands:,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

TBXT_HUMAN Thoracolumbosacral spina bifida cystica;Cervicothoracic spina bifida cystica;Lumbosacral spina bifida cystica;Cervicothoracic spina bifida aperta;Upper thoracic spina bifida aperta;Lumbosacral spina bifida aperta;Thoracolumbosacral spina bifida aperta;Cervical spina bifida cystica;Upper thoracic spina bifida cystica;Total spina bifida aperta;Chordoma;Total spina bifida cystica;Cervical spina bifida aperta;Sacral agenesis-abnormal ossification of the vertebral bodies-persistent notochordal canal syndrome. Disease susceptibility is associated with variations affecting the gene represented in this entry. Disease susceptibility is associated with variations affecting the gene represented in this entry. Susceptibility to development of chordomas is due to a T gene duplication. The disease is caused by mutations affecting the gene represented in this entry.

Function

TBXT_HUMAN Involved in the transcriptional regulation of genes required for mesoderm formation and differentiation. Binds to a palindromic site (called T site) and activates gene transcription when bound to such a site.[UniProtKB:P20293]

Publication Abstract from PubMed

Brachyury is a transcription factor that plays an essential role in tumour growth of the rare bone cancer chordoma and is implicated in other solid tumours. Brachyury is minimally expressed in healthy tissues, making it a potential therapeutic target. Unfortunately, as a ligandless transcription factor, brachyury has historically been considered undruggable. To investigate direct targeting of brachyury by small molecules, we determine the structure of human brachyury both alone and in complex with DNA. The structures provide insights into DNA binding and the context of the chordoma associated G177D variant. We use crystallographic fragment screening to identify hotspots on numerous pockets on the brachyury surface. Finally, we perform follow-up chemistry on fragment hits and describe the progression of a thiazole chemical series into binders with low microM potency. Thus we show that brachyury is ligandable and provide an example of how crystallographic fragment screening may be used to target protein classes that are difficult to address using other approaches.

Structural insights into human brachyury DNA recognition and discovery of progressible binders for cancer therapy.,Newman JA, Gavard AE, Imprachim N, Aitkenhead H, Sheppard HE, Te Poele R, Clarke PA, Hossain MA, Temme L, Oh HJ, Wells CI, Davis-Gilbert ZW, Workman P, Gileadi O, Drewry DH Nat Commun. 2025 Feb 14;16(1):1596. doi: 10.1038/s41467-025-56213-1. PMID:39952925[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. Newman JA, Gavard AE, Imprachim N, Aitkenhead H, Sheppard HE, Te Poele R, Clarke PA, Hossain MA, Temme L, Oh HJ, Wells CI, Davis-Gilbert ZW, Workman P, Gileadi O, Drewry DH. Structural insights into human brachyury DNA recognition and discovery of progressible binders for cancer therapy. Nat Commun. 2025 Feb 14;16(1):1596. PMID:39952925 doi:10.1038/s41467-025-56213-1

8a7n, resolution 1.90Å

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