TFIIA-alpha and beta-like factor is a protein that in humans is encoded by the GTF2A1Lgene.[1][2][3][4]
The assembly and stability of the RNA polymerase II transcription pre-initiation complex on a eukaryotic core promoter involve the effects of TFIIA on the interaction between TATA-binding protein (TBP) and DNA. This gene encodes a germ cell-specific counterpart of the large (alpha/beta) subunit of general transcription factor TFIIA that is able to stabilize the binding of TBP to DNA and may be uniquely important to testis biology. Alternative splicing for this locus has been observed and two variants, encoding distinct isoforms, have been identified. Co-transcription of this gene and the neighboring upstream gene generates a rare transcript (SALF), which encodes a fusion protein consisting of sequence sharing identity with each individual gene product.[4]
References
↑Upadhyaya AB, Lee SH, DeJong J (Jul 1999). "Identification of a general transcription factor TFIIAalpha/beta homolog selectively expressed in testis". J Biol Chem. 274 (25): 18040–8. doi:10.1074/jbc.274.25.18040. PMID10364255.
↑Xie W, Han S, Khan M, DeJong J (May 2002). "Regulation of ALF gene expression in somatic and male germ line tissues involves partial and site-specific patterns of methylation". J Biol Chem. 277 (20): 17765–74. doi:10.1074/jbc.M200954200. PMID11889132.
↑Huang M, Wang H, Li J, Zhou Z, Du Y, Lin M, Sha J (Mar 2006). "Involvement of ALF in human spermatogenesis and male infertility". Int J Mol Med. 17 (4): 599–604. doi:10.3892/ijmm.17.4.599. PMID16525715.
Maruyama K, Sugano S (1994). "Oligo-capping: a simple method to replace the cap structure of eukaryotic mRNAs with oligoribonucleotides". Gene. 138 (1–2): 171–4. doi:10.1016/0378-1119(94)90802-8. PMID8125298.
Suzuki Y, Yoshitomo-Nakagawa K, Maruyama K, et al. (1997). "Construction and characterization of a full length-enriched and a 5'-end-enriched cDNA library". Gene. 200 (1–2): 149–56. doi:10.1016/S0378-1119(97)00411-3. PMID9373149.
Han SY, Zhou L, Upadhyaya A, et al. (2001). "TFIIAalpha/beta-like factor is encoded by a germ cell-specific gene whose expression is up-regulated with other general transcription factors during spermatogenesis in the mouse". Biol. Reprod. 64 (2): 507–17. doi:10.1095/biolreprod64.2.507. PMID11159353.
Yoshida S, Ohbo K, Takakura A, et al. (2002). "Sgn1, a basic helix-loop-helix transcription factor delineates the salivary gland duct cell lineage in mice". Dev. Biol. 240 (2): 517–30. doi:10.1006/dbio.2001.0473. PMID11784080.
Upadhyaya AB, Khan M, Mou TC, et al. (2002). "The germ cell-specific transcription factor ALF. Structural properties and stabilization of the TATA-binding protein (TBP)-DNA complex". J. Biol. Chem. 277 (37): 34208–16. doi:10.1074/jbc.M204808200. PMID12107178.
Rual JF, Venkatesan K, Hao T, et al. (2005). "Towards a proteome-scale map of the human protein-protein interaction network". Nature. 437 (7062): 1173–8. doi:10.1038/nature04209. PMID16189514.
Howe ML, Mehmud ZF, Saha S, et al. (2006). "Transcription Factor IIA tau is associated with undifferentiated cells and its gene expression is repressed in primary neurons at the chromatin level in vivo". Stem Cells Dev. 15 (2): 175–90. doi:10.1089/scd.2006.15.175. PMID16646664.
Kim M, Li D, Cui Y, et al. (2006). "Regulatory factor interactions and somatic silencing of the germ cell-specific ALF gene". J. Biol. Chem. 281 (45): 34288–98. doi:10.1074/jbc.M607168200. PMID16966320.