ArticleThe Biochemical journal2007
Regulation of oncogenic transcription factor hTAF(II)68-TEC activity by human glyceraldehyde-3-phosphate dehydrogenase (GAPDH).
Article in The Biochemical journal, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 27 citations in OpenAlex.
- Article
- Identification of driver genes associated with chemotherapy resistance of Ewing's sarcoma.OncoTargets and therapy · 2018Article
- Protein Recognition in Drug-Induced DNA Alkylation: When the Moonlight Protein GAPDH Meets S23906-1/DNA Minor Groove Adducts.International journal of molecular sciences · 2015Review
- Direct binding of glyceraldehyde 3-phosphate dehydrogenase to telomeric DNA protects telomeres against chemotherapy-induced rapid degradation.Journal of molecular biology · 2009Article
- Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Tumour-specific chromosomal rearrangements are known to create chimaeric products with the ability to generate many human cancers. hTAF(II)68-TEC (where hTAF(II)68 is human TATA-binding protein-associated factor II 68 and TEC is translocated in extraskeletal chondrosarcoma) is such a fusion product, resulting from a t(9;17) chromosomal translocation found in extraskeletal myxoid chondrosarcomas, where the hTAF(II)68 NTD (N-terminal domain) is fused to TEC protein. To identify proteins that control hTAF(II)68-TEC function, we used affinity chromatography on immobilized hTAF(II)68 (NTD) and MALDI-TOF (matrix-assisted laser-desorption ionization-time-of-flight) MS and isolated a novel hTAF(II)68-TEC-interacting protein, GAPDH (glyceraldehyde-3-phosphate dehydrogenase). GAPDH is a glycolytic enzyme that is also involved in the early steps of apoptosis, nuclear tRNA export, DNA replication, DNA repair and transcription. hTAF(II)68-TEC and GAPDH were co-immunoprecipitated from cell extracts, and glutathione S-transferase pull-down assays revealed that the C-terminus of hTAF(II)68 (NTD) was required for interaction with GAPDH. In addition, three independent regions of GAPDH (amino acids 1-66, 67-160 and 160-248) were involved in binding to hTAF(II)68 (NTD). hTAF(II)68-TEC-dependent transcription was enhanced by GAPDH, but not by a GAPDH mutant defective in hTAF(II)68-TEC binding. Moreover, a fusion of GAPDH with the GAL4 DNA-binding domain increased the promoter activity of a reporter containing GAL4 DNA-binding sites, demonstrating the presence of a transactivation domain(s) in GAPDH. The results of the present study suggest that the transactivation potential of the hTAF(II)68-TEC oncogene product is positively modulated by GAPDH.
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