Nucleic Acids Research, 1990, Vol. 18, No. 20 6039-6043
© 1990
MOLECULAR BIOLOGY |
Characterization of a ubiquitin-fusion gene from the tobacco hawkmoth, Manduca sexta
Department of Zoology, Morrill Science Center, University of Massachusetts Amherst, MA 01003, USA
*To whom correspondence should be addressed
Received June 26, 1990. Revised September 18, 1990. Accepted September 18, 1990.
A gene encoding a ubiquitin-fusion protein was isolated from a cDNA library made from the intersegmental muscles (ISM) of the moth, Manduca sexta. The predicted amino acid sequence of this fusion protein is highly conserved when compared to the sequence of homologous proteins from diverse species. The Manduca clone encoding this ubiquitin fusion gene hybridized with a single, abundantly expressed transcript in all tissues examined. In the ISM, the transcript was present at high levels, independent of the developmental stage or hormonal treatment of these muscles. Data from other species indicate that ubiquitin-fusion genes participate in ribosome biogenesis.