Tripartite motif-containing 24 (TRIM24) also known as transcriptional intermediary factor 1α (TIF1α) is a protein that, in humans, is encoded by the TRIM24gene.[1][2][3]
The protein encoded by this gene mediates transcriptional control by interaction with the activation function 2 (AF2) region of several nuclear receptors, including the estrogen, retinoic acid, and vitamin D3 receptors. The protein localizes to nuclear bodies and is thought to associate with chromatin and heterochromatin-associated factors. The protein is a member of the tripartite motif (TRIM) family. The TRIM motif includes three zinc-binding domains – a RING, a B-box type 1 and a B-box type 2 – and a coiled-coil region. Two alternatively spliced transcript variants encoding different isoforms have been described for this gene.[1]
↑Le Douarin B, Nielsen AL, You J, Chambon P, Losson R (May 1997). "TIF1 alpha: a chromatin-specific mediator for the ligand-dependent activation function AF-2 of nuclear receptors?". Biochem. Soc. Trans. 25 (2): 605–12. PMID9191165.
↑Zennaro, M C; Souque A; Viengchareun S; Poisson E; Lombès M (September 2001). "A new human MR splice variant is a ligand-independent transactivator modulating corticosteroid action". Mol. Endocrinol. United States. 15 (9): 1586–98. doi:10.1210/mend.15.9.0689. ISSN0888-8809. PMID11518808.
↑Peng, Hongzhuang; Feldman Irina; Rauscher Frank J (July 2002). "Hetero-oligomerization among the TIF family of RBCC/TRIM domain-containing nuclear cofactors: a potential mechanism for regulating the switch between coactivation and corepression". J. Mol. Biol. England. 320 (3): 629–44. doi:10.1016/S0022-2836(02)00477-1. ISSN0022-2836. PMID12096914.
↑Thénot, S; Bonnet S; Boulahtouf A; Margeat E; Royer C A; Borgna J L; Cavaillès V (Dec 1999). "Effect of ligand and DNA binding on the interaction between human transcription intermediary factor 1alpha and estrogen receptors". Mol. Endocrinol. United States. 13 (12): 2137–50. doi:10.1210/me.13.12.2137. ISSN0888-8809. PMID10598587.
↑Lee, Wen-yi; Noy Noa (February 2002). "Interactions of RXR with coactivators are differentially mediated by helix 11 of the receptor's ligand binding domain". Biochemistry. United States. 41 (8): 2500–8. doi:10.1021/bi011764. ISSN0006-2960. PMID11851396.
Further reading
Le Douarin B, Nielsen AL, You J, et al. (1997). "TIF1 alpha: a chromatin-specific mediator for the ligand-dependent activation function AF-2 of nuclear receptors?". Biochem. Soc. Trans. 25 (2): 605–12. PMID9191165.
Thénot S, Henriquet C, Rochefort H, Cavaillès V (1997). "Differential interaction of nuclear receptors with the putative human transcriptional coactivator hTIF1". J. Biol. Chem. 272 (18): 12062–8. doi:10.1074/jbc.272.18.12062. PMID9115274.
Fraser RA, Heard DJ, Adam S, et al. (1998). "The putative cofactor TIF1alpha is a protein kinase that is hyperphosphorylated upon interaction with liganded nuclear receptors". J. Biol. Chem. 273 (26): 16199–204. doi:10.1074/jbc.273.26.16199. PMID9632676.
Eng FC, Barsalou A, Akutsu N, et al. (1998). "Different classes of coactivators recognize distinct but overlapping binding sites on the estrogen receptor ligand binding domain". J. Biol. Chem. 273 (43): 28371–7. doi:10.1074/jbc.273.43.28371. PMID9774463.
Venturini L, You J, Stadler M, et al. (1999). "TIF1gamma, a novel member of the transcriptional intermediary factor 1 family". Oncogene. 18 (5): 1209–17. doi:10.1038/sj.onc.1202655. PMID10022127.
Remboutsika E, Lutz Y, Gansmuller A, et al. (1999). "The putative nuclear receptor mediator TIF1alpha is tightly associated with euchromatin". J. Cell Sci. 112 (11): 1671–83. PMID10318760.
Klugbauer S, Rabes HM (1999). "The transcription coactivator HTIF1 and a related protein are fused to the RET receptor tyrosine kinase in childhood papillary thyroid carcinomas". Oncogene. 18 (30): 4388–93. doi:10.1038/sj.onc.1202824. PMID10439047.
Thénot S, Bonnet S, Boulahtouf A, et al. (2000). "Effect of ligand and DNA binding on the interaction between human transcription intermediary factor 1alpha and estrogen receptors". Mol. Endocrinol. 13 (12): 2137–50. doi:10.1210/me.13.12.2137. PMID10598587.
Zhong S, Delva L, Rachez C, et al. (1999). "A RA-dependent, tumour-growth suppressive transcription complex is the target of the PML-RARalpha and T18 oncoproteins". Nat. Genet. 23 (3): 287–95. doi:10.1038/15463. PMID10610177.
Hellal-Levy C, Fagart J, Souque A, et al. (2001). "Crucial role of the H11-H12 loop in stabilizing the active conformation of the human mineralocorticoid receptor". Mol. Endocrinol. 14 (8): 1210–21. doi:10.1210/mend.14.8.0502. PMID10935545.
Zennaro MC, Souque A, Viengchareun S, et al. (2002). "A new human MR splice variant is a ligand-independent transactivator modulating corticosteroid action". Mol. Endocrinol. 15 (9): 1586–98. doi:10.1210/mend.15.9.0689. PMID11518808.
Lee WY, Noy N (2002). "Interactions of RXR with coactivators are differentially mediated by helix 11 of the receptor's ligand binding domain". Biochemistry. 41 (8): 2500–8. doi:10.1021/bi011764. PMID11851396.
Gandini D, De Angeli C, Aguiari G, et al. (2002). "Preferential expression of the transcription coactivator HTIF1alpha gene in acute myeloid leukemia and MDS-related AML". Leukemia. 16 (5): 886–93. doi:10.1038/sj.leu.2402452. PMID11986951.
Peng H, Feldman I, Rauscher FJ (2002). "Hetero-oligomerization among the TIF family of RBCC/TRIM domain-containing nuclear cofactors: a potential mechanism for regulating the switch between coactivation and corepression". J. Mol. Biol. 320 (3): 629–44. doi:10.1016/S0022-2836(02)00477-1. PMID12096914.