HGNC Approved Gene Symbol: TCFL5
Cytogenetic location: 20q13.33 Genomic coordinates (GRCh38) : 20:62,841,005-62,861,822 (from NCBI)
Transcription factors containing basic helix-loop-helix (bHLH) motifs play important roles in the regulation of neurogenesis, myogenesis, cardiogenesis, cell proliferation, and differentiation. By differential display analysis of PCR products from mRNAs isolated from 9 different human tissues, Maruyama et al. (1998) identified a testis-specific cDNA, which they designated transcription factor-like-5 (TCFL5), encoding a 452-amino acid protein that contains a bHLH motif. Immunohistochemical staining located the gene product exclusively in cell nuclei of primary spermatocytes at the pachytene stage. The authors concluded that TCFL5 may function as a transcription factor in spermatogenesis through binding to a specific DNA sequence.
Maruyama et al. (1998) determined that the TCFL5 gene contains 6 exons and spans approximately 24 kb of genomic DNA.
By fluorescence in situ hybridization, Maruyama et al. (1998) mapped the TCFL5 gene to chromosome 20q13.3-qter.
Maruyama, O., Nishimori, H., Katagiri, T., Miki, Y., Ueno, A., Nakamura, Y. Cloning of TCFL5 encoding a novel human basic helix-loop-helix motif protein that is specifically expressed in primary spermatocytes at the pachytene stage. Cytogenet. Cell Genet. 82: 41-45, 1998. [PubMed: 9763657] [Full Text: https://doi.org/10.1159/000015061]