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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Mir21atm1.1Eno
targeted mutation 1.1, Eric N Olson
MGI:4881915
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Mir21atm1.1Eno/Mir21atm1.1Eno involves: C57BL/6 MGI:4881920
cx2
Krastm3Tyj/Kras+
Mir21atm1.1Eno/Mir21atm1.1Eno
involves: 129S/SvEv * 129S4/SvJae * C57BL/6 MGI:5317787


Genotype
MGI:4881920
hm1
Allelic
Composition
Mir21atm1.1Eno/Mir21atm1.1Eno
Genetic
Background
involves: C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Mir21atm1.1Eno mutation (0 available); any Mir21a mutation (8 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cardiovascular system
N
• mice exhibit largely normal cardiac morphology and physiology, including response to stress
• angiotensin II-treated mice exhibit a mildly exaggerated increased in heart weight compared with similarly treated wild-type mice

growth/size/body
• angiotensin II-treated mice exhibit a mildly exaggerated increased in heart weight compared with similarly treated wild-type mice




Genotype
MGI:5317787
cx2
Allelic
Composition
Krastm3Tyj/Kras+
Mir21atm1.1Eno/Mir21atm1.1Eno
Genetic
Background
involves: 129S/SvEv * 129S4/SvJae * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Krastm3Tyj mutation (2 available); any Kras mutation (76 available)
Mir21atm1.1Eno mutation (0 available); any Mir21a mutation (8 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
N
• unlike Krastm3Tyj heterozygotes, mice do not develop skin papillomas or lung adenomcarcinomas
• fewer than in Krastm3Tyj heterozygotes
• mice exhibit decreased total tumor area relative to lung area compared with Krastm3Tyj heterozygotes
• however, tumor cell proliferation is the same as in Krastm3Tyj heterozygotes
• mice develop fewer lung adenoma than in Krastm3Tyj heterozygotes
• mice develop fewer thymic lymphoma, lung hyperplasia and lung adenomas than in Krastm3Tyj heterozygotes
• fewer lung adenoma than in Krastm3Tyj heterozygotes

respiratory system
• mice develop fewer lung adenoma than in Krastm3Tyj heterozygotes
• mice develop fewer lung hyperplasia than in Krastm3Tyj heterozygotes

endocrine/exocrine glands
• fewer than in Krastm3Tyj heterozygotes





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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
05/07/2024
MGI 6.23
The Jackson Laboratory