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Strain Detail: lox-S6K mice

Strain information
Resource No. nbio269
Strain name lox-S6K
Strain Nomenclature B6.Tg(lox-Eevee-S6K)pT2A-lox-tdKeima-3568NES
Common name/Synonyms
Strain types mutant
Background strain C57BL/6J
Institution Laboratory of Bioimaging and Cell Signaling, Graduate School of Biostudies, Kyoto University
Developer Michiyuki Matsuda
Depositor Michiyuki Matsuda
Conditions of distribution It's necessary to obtain depositor's consent on use of biological resources. contact us
Animal Health Report
Strain description

The lox-S6K mice are transgenic mice expressing a probe containing lox-tdKeima and förster (or fluorescence) resonance energy transfer (FRET) biosensor Eevee-S6K for monitoring S6K activity. S6K (ribosomal protein S6 kinase) is a protein kinase, which phosphorylates ribosomal protein S6. In a downstream of PI3 kinase, S6K is activated by the phosphorylation by mTOR complex 1 and promotes translation, involving the regulation of cell cycles and protein synthesis. With this strain, S6K activity can be measured spatially and temporally in various tissues of fetuses and adults by live image observation of this strain under the two-photon microscopy. This strain is useful not only for analysis of the signal transduction cascade in live animals, but also for the application of drug development, such as the pharmacodynamic analysis targeting signal molecules, because rich expression of FRET biosensors can be observed even in primary cultured cells derived from various tissues.

Resource information
Cryopreserved sperm In-house Genotype Tg/+
From other institutions Genotype
Cryopreserved embryo In-house Mating System IVF
Genotype mix of heterozygous transgenic and wild-type
Medium EFS40
From other institutions Mating System
Strain status / Availability Cryopreserved sperm Within 1 month
Cryopreserved embryo Within 1 month
Live animals Approx. 2 months
Gene information
Mutation types transgenic
Gene symbol CFP, YFP, tdKeima
Gene name Cyan Fluorescent Protein, Yellow Fluorescent Protein, tandem dimer of Keima
Genotyping information Presence of transgenes can be checked by the emission of red fluorescence (~620 nm, Keima‚Äôs fluorescence) from the surface of mouse bodies under the blue excitation light (~450 nm).