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Phenotypes Associated with This Genotype
Genotype
MGI:3721920
cn4
Allelic
Composition
Hhextm1Cwb/Hhextm2Cwb
Tg(Alb1-cre)1Khk/?
Genetic
Background
involves: 129S1/Sv * 129X1/SvJ * C57BL/6 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hhextm1Cwb mutation (0 available); any Hhex mutation (15 available)
Hhextm2Cwb mutation (1 available); any Hhex mutation (15 available)
Tg(Alb1-cre)1Khk mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
liver/biliary system
• intrahepatic bile duct morphogenesis is abnormal and results in hepatic cysts
• at E18.5, the portal tracts are often surrounded by many irregular biliary duct-like structures/cysts
• mice exhibit a ductal plate malformation
• in the liver, the portal vein is surrounded by multiple cysts (likely of biliary cell origin) and irregular duct-like structures
• at E18.5, the portal tracts are often surrounded by many irregular biliary duct-like structures/cysts
• cysts present in the parenchymal tissue appear to form in the absence of a branch of the portal vein
• at 8 weeks, 24 of 26 mice have cysts and four of these mice have more than 50 visible cysts
• cysts are seen in all lobes of the liver, multioculated, almost all filled with a clear fluid, range in size from 0.5mm to 8mm, and worsen with age
• hepatic cysts are a result of abnormal morphogenesis of the intrahepatic bile duct

endocrine/exocrine glands
• intrahepatic bile duct morphogenesis is abnormal and results in hepatic cysts

growth/size/body
• at E18.5, the portal tracts are often surrounded by many irregular biliary duct-like structures/cysts
• cysts present in the parenchymal tissue appear to form in the absence of a branch of the portal vein
• at 8 weeks, 24 of 26 mice have cysts and four of these mice have more than 50 visible cysts
• cysts are seen in all lobes of the liver, multioculated, almost all filled with a clear fluid, range in size from 0.5mm to 8mm, and worsen with age
• hepatic cysts are a result of abnormal morphogenesis of the intrahepatic bile duct


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
01/06/2026
MGI 6.24
The Jackson Laboratory