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Targeted Allele Detail
Symbol: Gt(ROSA)26Sortm1(rtTA*M2)Jae
Name: gene trap ROSA 26, Philippe Soriano; targeted mutation 1, Rudolf Jaenisch
MGI ID: MGI:3702294
Synonyms: Gt(ROSA)26Sortm1(M2rtTA)Jae, M2, M2-rtTA, R26-M2rtTA, R26-rtTA, Rosa26-M2rtTA
Gene: Gt(ROSA)26Sor  Location: Chr6:113044389-113054205 bp, - strand  Genetic Position: Chr6, 52.73 cM
Alliance: Gt(ROSA)26Sortm1(rtTA*M2)Jae page
Col1a1tm1(tetO-Tcfap2c)Hsc/Col1a1+ Gt(ROSA)26Sortm1(rtTA*M2)Jae/Gt(ROSA)26Sor+ mice show increased proliferation and induced hepatic steatosis

Show the 4 phenotype image(s) involving this allele.

Germline Transmission:  Earliest citation of germline transmission: J:98920
Parent Cell Line:  KH2 (ES Cell)
Strain of Origin:  (C57BL/6 x 129S4/SvJae)F1
Allele Type:    Targeted (Transactivator)
Mutation:    Insertion
Mutation detailsAn optimized form of reverse tetracycline controlled transactivator (rtTA-M2) was inserted downstream of the Gt(ROSA)26Sor promoter and was followed by a PGK-puro selection cassette. This mutant form of rtTA termed M2 has five amino acid substitutions in the tetR moiety of tTA: S12G, E19G, A56P, D148E and H179R. This mutated form of transactivator protein has increased doxycycline sensitivity. Mice have widespread expression of the rtTA-M2 protein. (J:98920)
View phenotypes and curated references for all genotypes (concatenated display).
Disease models
Find Mice (IMSR)
Mouse strains and cell lines available from the International Mouse Strain Resource (IMSR)
Carrying this Mutation:  Mouse Strains: 29 strains available      Cell Lines: 0 lines available
Carrying any Gt(ROSA)26Sor Mutation:  830 strains or lines available
This mutation was created during the generation of mutant ES cell line KH2, which also contains a frt docking site downstream of the endogenous Col1a1 locus on Chr 11 (Col1a1). The two mutations have subsequently been bred apart.
Original:  J:98920 Hochedlinger K, et al., Ectopic expression of Oct-4 blocks progenitor-cell differentiation and causes dysplasia in epithelial tissues. Cell. 2005 May 6;121(3):465-77
All:  275 reference(s)

Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
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last database update
MGI 6.22
The Jackson Laboratory