Cloning and Characterization of a cDNA Encoding Aspartate Aminotransferase-P1 from Lupinus angustifolius Root Tips

Autor: Brett D. Reddington, Kevin J. F. Farnden, Christopher S. Winefield, William T. Jones, Paul H. S. Reynolds
Rok vydání: 1994
Předmět:
Zdroj: Plant Physiology. 104:417-423
ISSN: 1532-2548
0032-0889
Popis: A root tip cDNA library, constructed in the [lambda] Zap II expression vector, was immunoscreened with a monoclonal antibody raised against aspartate aminotransferase-P1 from Lupinus angustifolius L. var Uniharvest. One 1452-base pair clone was isolated. The encoded protein sequence had high homology to both plant and animal aspartate aminotransferase sequences. The clone was converted to the phagemid form and expressed in Escherichia coli. The expressed protein was enzymically active and could be immuno-complexed with aspartate aminotransferase-P1-specific antibodies. The complete aspartate aminotransferase-P1 cDNA was cloned into the yeast expression vector pEMBL-yex4 and transformed into Saccharomyces cerevisiae strain BRSCS6, which possesses a mutated aspartate aminotransferase gene (the asp5 mutation). Complementation of the mutation was achieved using this construct.
Databáze: OpenAIRE