Genomic structure and homoeologous relationship of the two alpha-subunit genes of a heterotrimeric GTP-binding protein in tobacco.

@article{Takumi2002GenomicSA,
  title={Genomic structure and homoeologous relationship of the two alpha-subunit genes of a heterotrimeric GTP-binding protein in tobacco.},
  author={Shigeo Takumi and Makiko Ida and Yoshiyuki Haisa and Seiji Ando and Chiharu Nakamura},
  journal={Genome},
  year={2002},
  volume={45 4},
  pages={626-33}
}
A heterotrimeric GTP-binding protein (G protein) plays a number of important roles in the signal-transduction pathways of eukaryotic cells. The allotetraploid tobacco genome has two alpha-subunit genes, NtGA1 and NtGA2, of the heterotrimeric G protein. In this study, we determined the nucleotide sequences and the exon-intron structures of the NtGA loci in tobacco and its ancestral diploid species. The genomic sequences of the NtGA loci were interrupted by 13 introns. The sizes of most exons (12… CONTINUE READING