RRC ID 28962
Author Manstein DJ, Schuster HP, Morandini P, Hunt DM.
Title Cloning vectors for the production of proteins in Dictyostelium discoideum.
Journal Gene
Abstract We constructed and tested a series of cloning vectors designed to facilitate protein production and purification in Dictyostelium discoideum (Dd). These vectors carry the origin of replication of the Dd high-copy-number plasmid Ddp2, expression cassettes consisting of the strong, constitutive actin (act15) or the inducible discoidin (disI gamma) promoters, a translational start codon upstream from a multiple cloning site and sequences for the addition of epitope or affinity tags at the N- or C-termini of any protein. The affinity tag used corresponds to 7 (N-terminal fusion) or 8 (C-terminal fusion) His residues. The epitope tags correspond to an 11-amino-acid sequence from human c-myc, recognised by monoclonal antibody (mAb) 9E10, and the Glu-Glu-Phe sequence recognised by mAb YL1/2 to alpha-tubulin. Both these mAb are commercially available. The YL1/2 epitope offers a second affinity tag for the purification of proteins under native conditions. The functional competence of the vectors was tested by determining their ability to promote the expression of various Dd myosin constructs. High synthesis levels were obtained for each vector; up to 1 mg of homogenous, functional protein per g of cells was obtained after purification of the recombinant products.
Volume 162(1)
Pages 129-34
Published 1995-8-30
DOI 10.1016/0378-1119(95)00351-6
PII 0378111995003516
PMID 7557400
MeSH Amino Acid Sequence Animals Base Sequence Biomarkers Cloning, Molecular / methods* Dictyostelium / genetics* Dictyostelium / metabolism Epitopes Genetic Vectors* Molecular Sequence Data Myosins / biosynthesis* Myosins / genetics Peptide Fragments / biosynthesis Peptide Fragments / genetics Plasmids / genetics Proto-Oncogene Proteins c-myc / genetics Recombinant Fusion Proteins / biosynthesis* Replication Origin Transformation, Genetic
IF 2.984
Times Cited 188
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