One can directly inject the plasmid and guide RNA into mouse embryo to
make knockout mice.
Researchers
make knockout mice by disrupting the function of individual genes across the animal's genome.
«NIH is committed to
making knockout mouse models more widely accessible to the biomedical research community,» said James Battey, M.D., Ph.D., director of the National Institute on Deafness and Other Communication Disorders (NIDCD), who is also the co-chair of the Trans - NIH Mouse Initiative.
Not exact matches
The
knockout mice, which will be
made available to academic researchers at low cost, should help efforts to figure out what newly discovered genes do in the body.
We generated
knockout mice lacking synaptobrevin / VAMP 2, the vesicular SNARE protein responsible for synaptic vesicle fusion in forebrain synapses, to
make use of the exquisite temporal resolution of electrophysiology in measuring fusion.
Normally, these substances
make mice scratch nonstop, but the
knockout mice hardly scratched themselves at all after the injection, showing that Nppb was required to produce the sensation of itch, the authors report online today in Science.
Because
mice lacking both genes would not be born alive, the scientists followed up this lead by
making «conditional
knockout mice,» in which Esrp1 and Esrp2 activity was normal early in fetal development, but then was switched off in skin epithelial cells.
In an attempt to increase sensitivity for sepsis, Canaan aged these FAT10
knockout mice and
made the discovery that
mice lacking the gene were lean and aged more slowly.
CRISPR genome editing has
made it easier to create
knockout alleles in a variety of species, including the standard laboratory
mouse.
Both the
knockout and normal phenotype data will be
made available through the KOMP2 data coordination center so that researchers who acquire and study the
knockout mice can compare various phenotypes.
For a fact sheet describing what
knockout mice are, how they are made and what they are used for, go to Knocko
knockout mice are, how they are made and what they are used for, go to Knockout M
mice are, how they are
made and what they are used for, go to
KnockoutKnockout MiceMice.
What's more, researchers have
made advances over the last several years in improving the efficiency and decreasing the cost of generating
knockout mice.
«Our decision to procure these
knockout mouse lines and data and
make them available to the research community will yield tremendous benefits, both in the short and long terms,» said NIH Director Elias A. Zerhouni, M.D. «This trans - NIH initiative will place important
mouse models into the hands of researchers, speeding advances in the understanding of human disease and the development of new therapies.
For more information on what
knockout mice are, how they are made and what they are used for, go to Knocko
knockout mice are, how they are made and what they are used for, go to Knockout M
mice are, how they are
made and what they are used for, go to
KnockoutKnockout MiceMice.
But CRISPR's speed, efficiency and ability to target multiple genes simultaneously are
making it the new standard for
knockouts in
mice, zebrafish and many other species.
The University of California, Davis (UC Davis) and Children's Hospital Oakland Research Institute (CHORI) in Oakland, Calif., will collaborate to preserve, protect, and
make available about 8,500 types of
knockout mice and related products available to the research community.