Nucleic Acids Research, 1993, Vol. 21, No. 18 4369-4371
© 1993
MOLECULAR BIOLOGY |
dHMG-Z, a second HMG-1-related protein in Drosophila melanogaster
MRC Laboratory of Molecular Biology hills Road, Cambridge CB2 2QH, UK
Received March 22, 1993. Revised July 29, 1993. Accepted July 29, 1993.
We report the Identification of dHMG-Z, a gene related to dHMG-D and encoding a second Invertebrate homologue of HMG 1 protein. The encoded proteins Is 65% identical to dHMG-D protein, and also contains a single HMG-box as the DNA recognition motif. Analgous to dHMG-D, two transcripts are observed for dHMG-Z which are differentially regulated, and are the product of zygotic transcription unlike the dHMG-D transcripts which arise from both maternal and zygotic transcription. The genes for dHMG-D and dHMG-Z are located on adjacent loci in the genome and each contains two introns. The position of the second Irrtron in the coding region is conserved between the two genes suggesting a common origin via gene duplication.
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