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Strain Detail: Junko mice

Strain information
Resource No. nbio189
Strain name Junko
Strain Nomenclature ICR×(ICR×B6C3F1)N2-Tg(pT2A-3907NLS)#3
Common name/Synonyms JNKAREV mice
Strain types mutant
Background strain
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

Junko mice are transgenic mice expressing nucleus-localized förster (or fluorescence) resonance energy transfer (FRET) biosensor JNKAREV-NLS monitoring PKA kinase activity under the control of CAG promoter in whole body. The c-Jun N-terminal kinase (JNK) is belong to MAPK family and activated by environmental stress such as UV or temperature, inflammatory cytokine, growth factor, etc. It's possible to measure JNK kinase activity spatially and temporally in fetal or adult various tissues by live imaging observation of this strain in the two-photon microscopy. This strain expects not only to analyze the signal transduction cascade in live animals, but also apply drug development such as the pharmacodynamic analysis targeting signal molecules, because these mice are showed rich expression in primary cultured cells derived from various tissues. In the case of using epithelial tissues when you detect the difference of JNK activity in cell lines, nucleus-localized FRET biosensor is easier to use. However, this strain is difficult to observe cell forms, therefore it's necessary to coincidentally express the marker for identifing cells in some tissues. FRET biosensor generally can't use for fixed samples.

  1. Kamioka Y, Sumiyama K, Mizuno R, Sakai Y, Hirata E, Kiyokawa E, and Matsuda M. (2012) Live imaging of protein kinase activities in transgenic mice expressing FRET biosensors. Cell Struct Funct 37(1):65-73. [PMID:22277578]
Resource information
Cryopreserved sperm In-house Genotype
From other institutions Genotype
Cryopreserved embryo In-house Mating System
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
Gene name Cyan Fluorescent Protein, Yellow Fluorescent Protein
Genotyping information