Abstract
The sex-determining region Y (SRY) gene and its related Sox genes encode transcriptional regulatory factors. In this study, we isolated and sequenced a novel Sox cDNA from African clawed frog (Xenopus laevis). The Sox gene was named xSox33. xSox33 was revealed to encode 244 amino acids. Reverse transcription-polymerase chain reaction (RT-PCR) showed that xSox33 was expressed at very low levels in some frog tissues including lung, ovary, skeletal muscle, testis, brain and heart. Its embryonic expression was also studied by RT-PCR. After the mid-blastula transition, the zygotic expression was initiated during gastrulation and the level was elevated as the embryogenesis proceeded. Electrophoretic mobility shift assay (EMSA) indicated that a recombinant xSox33 polypeptide was capable of binding to the nucleotide sequence AACAAT.
Original language | English |
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Pages (from-to) | 140-145 |
Number of pages | 6 |
Journal | Biochimica et Biophysica Acta - Gene Structure and Expression |
Volume | 1628 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2003 Jul 28 |
Externally published | Yes |
Keywords
- (Xenopus laevis)
- DNA binding
- Embryogenesis
- HMG box
- SOX
- SRY
ASJC Scopus subject areas
- Structural Biology
- Biophysics
- Biochemistry
- Genetics