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Phenotypes Associated with This Genotype
Genotype
MGI:3821752
Allelic
Composition		 Gt(ROSA)26Sortm1(Notch1)Dam/Gt(ROSA)26Sor+
Krastm4Tyj/Krastm4Tyj
Tg(Pdx1-cre/Esr1*)35.10Dam/0
Genetic
Background		 involves: 129S4/SvJae * 129S4/SvJaeSor * C57BL/6 * CBA
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gt(ROSA)26Sortm1(Notch1)Dam mutation (1 available); any Gt(ROSA)26Sor mutation (1060 available)
Krastm4Tyj mutation (11 available); any Kras mutation (69 available)
Tg(Pdx1-cre/Esr1*)35.10Dam mutation (1 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
neoplasm
increased pancreatic intraepithelial neoplasia incidence ( J:142188 )
• mice treated with tamoxifen staring at E10.5 exhibit pancreatic intraepithelial neoplasia (PanIN) that overtakes nearly all of the organ
• mice not treated with tamoxifen develop focal PanIN that are more numerous than in Krastm4Tyj/Krastm4Tyj Tg(Ipf1-cre/Esr1)35.10Dam mice
• acinar-ductal metaplasia precedes PanIN

endocrine/exocrine glands
increased pancreatic intraepithelial neoplasia incidence ( J:142188 )
• mice treated with tamoxifen staring at E10.5 exhibit pancreatic intraepithelial neoplasia (PanIN) that overtakes nearly all of the organ
• mice not treated with tamoxifen develop focal PanIN that are more numerous than in Krastm4Tyj/Krastm4Tyj Tg(Ipf1-cre/Esr1)35.10Dam mice
• acinar-ductal metaplasia precedes PanIN

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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Send questions and comments to User Support. 		last database update
12/30/2025
MGI 6.24 		The Jackson Laboratory