Application | Comment | Organism |
---|---|---|
molecular biology | Sleeping Beauty is a prominent Tc1/mariner superfamily DNA transposon that provides a popular genome engineering tool in a broad range of organisms. It is mobilized by a transposase enzyme that catalyses DNA cleavage and integration at short specific sequences at the transposon ends | Homo sapiens |
Cloned (Comment) | Organism |
---|---|
recombinant expression of N-terminally thioredoxinA-6xHis-tagged wild-type and mutant enzymes in Escherichia coli strain RosettaII(DE3) | Homo sapiens |
Crystallization (Comment) | Organism |
---|---|
puriifed recombinant tagged transposase catalytic domain SB100X, residues 114-340, by hanging drop vapour diffusion method, mixing of 0.002 ml of 19 mg/ml protein in 20 mM HEPES, pH 7.2, 50 mM NaCl, 2% v/v glycerol, 10 mM MgCl2, and 0.2 mM TCEP, with 0.002 ml of precipitant solution containing 0.1 M Na-citrate, pH 4.8, and 3.2 M ammonium sulfate, 4°C, 5 days, X-ray diffraction structure determination and analysis at 1.40 A resolution, PDB ID 3HOS | Homo sapiens |
Protein Variants | Comment | Organism |
---|---|---|
E279D | a catalytically inactive transposase mutant | Homo sapiens |
K339 | site-directed mutagenesis, the mutant shows 20% reduced activity compared to the wild-type enzyme | Homo sapiens |
additional information | design of two additional hyperactive transposase variants using the enzyme crystal structure, evaluation of structure-based engineering of tailored SB transposases, overview | Homo sapiens |
N280 | site-directed mutagenesis, the mutant shows 50% reduced activity compared to the wild-type enzyme | Homo sapiens |
N280/K339 | site-directed mutagenesis, almost catalytically inactive mutant | Homo sapiens |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
Mg2+ | required | Homo sapiens |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Homo sapiens | - |
- |
- |
Purification (Comment) | Organism |
---|---|
recombinant N-terminally thioredoxinA-6xHis-tagged wild-type and mutant enzymes from Escherichia coli strain RosettaII(DE3) by nickel affinity chromatography | Homo sapiens |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
additional information | Sleeping Beauty transposase excision activity is quantified using a fluorescence-activated cell sorting (FACS)-based excision assay in HeLa cells, overall SB transposition activity is also detected in HeLa cells | Homo sapiens | ? | - |
? |
Subunits | Comment | Organism |
---|---|---|
More | the SB100X catalytic domain assumes an RNaseH-fold with all catalytic residues assembled in the active site, it contains conserved alpha-helices and beta-strands, structure modeling of the SB transposase/transposon end/target DNA complex using crystal structure, PDB ID 3HOS, overview | Homo sapiens |
Synonyms | Comment | Organism |
---|---|---|
sleeping beauty transposase | - |
Homo sapiens |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
25 | - |
assay at | Homo sapiens |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
7.2 | - |
assay at | Homo sapiens |
General Information | Comment | Organism |
---|---|---|
evolution | Sleeping Beauty is a prominent Tc1/mariner superfamily DNA transposon, mobilized by a transposase enzyme that catalyses DNA cleavage and integration at short specific sequences at the transposon ends | Homo sapiens |
additional information | modeling of the SB transposase/transposon end/target DNA complex, overview | Homo sapiens |