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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Klf2tm1Mlkn
targeted mutation 1, Mark L Kahn
MGI:3765423
Summary 4 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
cn1
Klf2tm1Mlkn/Klf2+
Krit1tm1Kwhi/Krit1tm1Kwhi
Tg(Cdh5-cre/ERT2)1Rha/0
involves: 129S6/SvEvTac * C57BL/6NCrl MGI:6279216
cn2
Klf2tm1Mlkn/Klf2tm1Mlkn
Krit1tm1Kwhi/Krit1tm1Kwhi
Tg(Cdh5-cre/ERT2)1Rha/0
involves: 129S6/SvEvTac * C57BL/6NCrl MGI:6279217
cn3
Klf2tm1Mlkn/Klf2tm1Mlkn
Tg(Tek-cre)12Flv/?
involves: C3H * C57BL/6 MGI:3765432
cn4
Klf2tm1Mlkn/Klf2tm1Mlkn
Tg(VAV1-cre)1Graf/0
Not Specified MGI:3765433


Genotype
MGI:6279216
cn1
Allelic
Composition
Klf2tm1Mlkn/Klf2+
Krit1tm1Kwhi/Krit1tm1Kwhi
Tg(Cdh5-cre/ERT2)1Rha/0
Genetic
Background
involves: 129S6/SvEvTac * C57BL/6NCrl
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Klf2tm1Mlkn mutation (0 available); any Klf2 mutation (12 available)
Krit1tm1Kwhi mutation (0 available); any Krit1 mutation (34 available)
Tg(Cdh5-cre/ERT2)1Rha mutation (3 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cardiovascular system
• tamoxifen injected mice exhibit a marked (80%) but incomplete prevention of cerebral cavernous malformation lesion formation

nervous system
• tamoxifen injected mice exhibit a marked (80%) but incomplete prevention of cerebral cavernous malformation lesion formation




Genotype
MGI:6279217
cn2
Allelic
Composition
Klf2tm1Mlkn/Klf2tm1Mlkn
Krit1tm1Kwhi/Krit1tm1Kwhi
Tg(Cdh5-cre/ERT2)1Rha/0
Genetic
Background
involves: 129S6/SvEvTac * C57BL/6NCrl
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Klf2tm1Mlkn mutation (0 available); any Klf2 mutation (12 available)
Krit1tm1Kwhi mutation (0 available); any Krit1 mutation (34 available)
Tg(Cdh5-cre/ERT2)1Rha mutation (3 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
N
• mice exhibit 99% rescue of cerebral cavernous malformation lesion formation, with only a small amount of venule dilatation visible




Genotype
MGI:3765432
cn3
Allelic
Composition
Klf2tm1Mlkn/Klf2tm1Mlkn
Tg(Tek-cre)12Flv/?
Genetic
Background
involves: C3H * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Klf2tm1Mlkn mutation (0 available); any Klf2 mutation (12 available)
Tg(Tek-cre)12Flv mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging

cardiovascular system
• by E12.5, the myocardium of is only 1-2 cell layers thick compared to a thickness of 5 cell layers or more in littermate controls
• by E12.5, the myocardium has pulled away from the epicardium
• by E12.5, large effusions are apparent around the embryonic heart
• in E11.5 embryos, cardiac outputs are nearly 3 fold higher than in littermate controls
• in E11.5 embryos, left ventricular stroke volume is 2.5 fold higher than in controls
• no evidence of valvular regurgitation is detected, indicating that excess flow is in the outward direction
• maternal administration of a smooth muscle tone agonist rescues half of E14.5 embryos from lethality related to cardiac failure
• at E12.5, 25% of embryos lack a heartbeat with the remaining embryos having a slower heartbeat (86 bpm vs 128 bpm)
• by E14.5 all embryos have lost their heartbeat

embryo
• at E12.5, some yolk sacs are poorly perfused while others are devoid of blood

hematopoietic system
• mice have normal amounts of erthyrocytes and do not display other signs of anemia

homeostasis/metabolism
• by E12.5, large effusions are apparent around the embryonic heart

muscle
• by E12.5, the myocardium of is only 1-2 cell layers thick compared to a thickness of 5 cell layers or more in littermate controls




Genotype
MGI:3765433
cn4
Allelic
Composition
Klf2tm1Mlkn/Klf2tm1Mlkn
Tg(VAV1-cre)1Graf/0
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Klf2tm1Mlkn mutation (0 available); any Klf2 mutation (12 available)
Tg(VAV1-cre)1Graf mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
immune system
• mice lack T cells in the peripheral blood

hematopoietic system
• mice lack T cells in the peripheral blood





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last database update
04/23/2024
MGI 6.23
The Jackson Laboratory