Strain Data Sheet



BRC No.RBRC09910
TypeTargeted MutationCartagena
SpeciesMus musculus
Strain nameC57BL/6N-Sik3<tm1.1Iiis>
Former Common nameSik3<Slp>
H-2 Haplotype
ES Cell lineRENKA [C57BL/6NCrlCrlj]
Background strainC57BL/6NJcl
Strain developmentWe induced random point mutations by ethylnitrosourea (ENU) and screened for dominant sleep and wakefulness abnormalities through EEG/EMG-based sleep staging. Through our screening, we established a mutant pedigree, which we termed Sleepy (Slp), with a markedly prolonged sleep time. Whole-exome sequencing of Sleepy mutants identified a heterozygous single nucleotide substitution at the splice donor site for intron 13 of the Sik3 gene. To confirm genetically that the Sik3 splice mutation is the sole cause of the long-sleep phenotype, we introduced the Sik3 exon 13-skipping allele into wild-type mice by using conventional knock-in in embryonic stem (ES) cells. As expected, these mouse lines exhibited markedly reduced wake time, similar to the original Sleepy pedigree.
Strain descriptionThis mouse line exhibited markedly reduced wake time.
Colony maintenance
ReferencesNature, 539, 378-383 (2016). 27806374

Health Report

Examination Date / Room / Racknull


Gene info
Gene symbolGene nameChr.Allele symbolAllele nameCommon namesPromoter
Sik3SIK family kinase 39Sik3<tm1.1Iiis>targeted mutation 1.1, Masashi Yanagisawa and Hiromasa Funato

Gene symbolGene nameChr.Allele symbolAllele nameCommon namesPromoter
Frtyeast FRT (flippase recombination target) site9Frt


Donor DNAyeast FRT (flipase recombination target) site, mouse Sik3 genomic DNA
Research applicationFLP/frt system
Specific Term and ConditionsIn publishing the research results obtained by use of the BIOLOGICAL RESOURCE, a citation of the following literature(s) designated by the DEPOSITOR is requested. Nature, 539, 378-383 (2016).Prior to requesting the BIOLOGICAL RESOURCE, the RECIPIENT must obtain approval from Dr. Masashi Yanagisawa. The availability of the BIOLOGICAL RESOURCE is limited to a RECIPIENT of a not-for profit institution for a not-for-profit research.
DepositorDrs. Hiromasa Funato and Masashi Yanagisawa (University of Tsukuba)
Strain Statusan icon for Frozen embryosFrozen embryos
an icon for Frozen spermFrozen sperm
Strain AvailabilityRecovered litters from cryopreserved embryos (2 to 4 months)
Cryopreserved sperm (within 1 month)
Cryopreserved embryos (within 1 month)
Additional Info.Mouse of the Month Mar 2019
Necessary documents for ordering:
  1. Approval form (Japanese / English)
  2. Order form (Japanese / English)
  3. Category I MTA: MTA for distribution with RIKEN BRC (Japanese / English)
  4. Acceptance of responsibility for living modified organism (Japanese / English)

Genotyping protocol -PCR-

BRC mice in Publications

No Data