| Revista: | Genetics and molecular biology |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000459180 |
| ISSN: | 1415-4757 |
| Autores: | Aygün, Ilkin1 Rzepczak, Alicja1 Miki, Takashi S1 |
| Instituciones: | 1Polish Academy of Sciences, Institute of Bioorganic Chemistry, Poznan. Polonia |
| Año: | 2023 |
| Periodo: | Ene |
| Volumen: | 46 |
| Número: | 2 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, analítico |
| Resumen en inglés | XRN2 is an evolutionarily conserved 5’-to-3’ exoribonuclease, which degrades or trims various types of RNA in the nucleus. Although XRN-2 is essential for embryogenesis, larval development and reproduction in Caenorhabditis elegans, relevant molecular pathways remain unidentified. Here we create a germline-specific xrn-2 conditional mutant and perform a mutagenesis screen for suppressors of sterility. Loss-of-function alleles of dpy-10, osr-1, ptr-6 and C34C12.2 genes are identified. Depletion of DPY-10, OSR-1 or PTR-6 increases expression of gpdh-1 that encodes a glycerol-3-phosphate dehydrogenase, thereby elevates glycerol accumulation to suppress sterility of the mutant. The C34C12.2 protein is predominantly localized in the nucleolus of germ cells and shows a similarity to Saccharomyces cerevisiae Net1, which is involved in rDNA silencing. Depletion of NRDE-2, a putative interacting partner of C34C12.2 and a component of the nuclear RNAi machinery, restores fertility to the xrn-2 conditional mutant. These results may help to identify an essential role of XRN-2 in germline development |
| Disciplinas: | Biología |
| Palabras clave: | Helmintos, Genética, Nematoda, Caenorhabditis elegans, Mutagénesis |
| Keyword: | Helminths, Genetics, Nematoda, Caenorhabditis elegans, Mutagenesis |
| Texto completo: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
