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Comparison of the Tamoxifen Regulated Chimeric Cre Recombinases MerCreMer and CreMer
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Chrysi Verrou
Published/Copyright:
June 1, 2005
Abstract
The site-directed recombinase Cre can be employed to delete or assemble genes in the genome of living cells. We have constructed expression vectors for chimeric Cre recombinases carrying a mutated hormone binding domain either at the C-terminus only (CreMer) or at both the N and C-termini (MerCreMer). The chimeric Cre proteins can be activated by culturing transfected cells with 4-hydroxytamoxifen. In transfected embryonic stem (ES) cells, we compared the extent of recombination of a floxed gene with the expression levels of the chimeric Cre proteins. Our data demonstrate that the bulky MerCreMer protein is not less active than the CreMer protein. Thus, the tighter control and low background activity of the MerCreMer enzyme is not due to a generally low recombinase efficiency.
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Published Online: 2005-06-01
Published in Print: 1999-12-20
Copyright © 1999 by Walter de Gruyter GmbH & Co. KG
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- Comparison of the Tamoxifen Regulated Chimeric Cre Recombinases MerCreMer and CreMer
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- Acknowledgement
- Content Index
- Author Index
- Subject Index
Articles in the same Issue
- To Our Authors, Readers and Subscribers
- Editor's Note
- A Chimpanzee Millennium
- Molecular Genetics of Dopa-Responsive Dystonia
- In Vitro Transcription of a TATA-Less Promoter: Negative Regulation by the Not1 Protein
- Fast Control of DNA Replication in Response to Hypoxia and to Inhibited Protein Synthesis in CCRF-CEM and HeLa Cells
- The Inhibition of NF-B Activation Pathways and the Induction of Apoptosis by Dithiocarbamates in T Cells Are Blocked by the Glutathione Precursor N-Acetyl-L-Cysteine
- Xylose Utilisation: Cloning and Characterisation of the Xylose Reductase from Candida tenuis
- Xylose Utilisation: Cloning and Characterisation of the Xylitol Dehydrogenase from Galactocandida mastotermitis
- Thermodynamic Properties and DNA Binding of the ParD Protein from the Broad Host-Range Plasmid RK2/RP4 Killing System
- Dipeptidyl Peptidase III from Rat Liver Cytosol: Purification, Molecular Cloning and Immunohistochemical Localization
- Genomic Expansion Across the Albumin Gene Family on Human Chromosome 4q Is Directional
- Comparison of the Tamoxifen Regulated Chimeric Cre Recombinases MerCreMer and CreMer
- The Human Cathepsin F Gene a Fusion Product between an Ancestral Cathepsin and Cystatin Gene
- Characterization of a New Member of the TNF Family Expressed on Antigen Presenting Cells
- Vascular Endothelial Growth Factor (VEGF) and Its Receptors in Tumor-Bearing Dogs
- Molecular Cloning and Characterization of a cDNA Encoding a Transferrin Homolog from Bombyx mori
- Mitochondria-Derived and Extra-Mitochondrial Human Type-1 Porin Are Identical as Revealed by Amino Acid Sequencing and Electrophysiological Characterisation
- Acknowledgement
- Content Index
- Author Index
- Subject Index
