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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Kmt2btm1.1Afst
targeted mutation 1.1, A Francis Stewart
MGI:3623310
Summary 6 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Kmt2btm1.1Afst/Kmt2btm1.1Afst involves: 129P2/OlaHsd * C57BL/6 * SJL MGI:3626328
cn2
Kmt2btm1Afst/Kmt2btm1.1Afst
Tg(Gdf9-icre)5092Coo/0
involves: 129 * 129P2/OlaHsd * C57BL/6 MGI:4867493
cn3
Kmt2btm1Afst/Kmt2btm1.1Afst
Tg(Zp3-cre)3Mrt/0
involves: 129 * 129P2/OlaHsd * C57BL/6 * FVB/N MGI:4867494
cn4
Kmt2btm1.1Afst/Kmt2btm1.1Afst
Ndor1Tg(UBC-cre/ERT2)1Ejb/0
involves: 129P2/OlaHsd * 129S/Sv * C3H/HeH * C57BL/6 MGI:5532302
cn5
Kmt2btm1Afst/Kmt2btm1.1Afst
Amhr2tm3(cre)Bhr/Amhr2+
involves: 129P2/OlaHsd * 129S/SvEv * C57BL/6 MGI:4867492
cn6
Kmt2btm1Afst/Kmt2btm1.1Afst
Gt(ROSA)26Sortm9(cre/ESR1)Arte/Gt(ROSA)26Sor+
involves: 129P2/OlaHsd * 129S6/SvEvTac * C57BL/6 MGI:4867495


Genotype
MGI:3626328
hm1
Allelic
Composition
Kmt2btm1.1Afst/Kmt2btm1.1Afst
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Kmt2btm1.1Afst mutation (0 available); any Kmt2b mutation (63 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
normal phenotype




Genotype
MGI:4867493
cn2
Allelic
Composition
Kmt2btm1Afst/Kmt2btm1.1Afst
Tg(Gdf9-icre)5092Coo/0
Genetic
Background
involves: 129 * 129P2/OlaHsd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Kmt2btm1.1Afst mutation (0 available); any Kmt2b mutation (63 available)
Kmt2btm1Afst mutation (0 available); any Kmt2b mutation (63 available)
Tg(Gdf9-icre)5092Coo mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
reproductive system
• very few follicles at 36 weeks old
• a higher number of primary growing follicles at 2 weeks old
• a 50% decrease in primordial follicles at 3 weeks old
• an 80% reduction in primordial follicles at 8 weeks old
• increase in growing preantral follicles at 3 weeks old
• increased number of atretic follicles from 3 week of age onwards
• a higher number of primary growing follicles at 2 weeks old
• a 50% decrease in primordial follicles and an increase in growing preantral follicles at 3 weeks old
• an 80% reduction in primordial follicles at 8 weeks old
• increased number of atretic follicles from 3 week of age onwards
• very few follicles at 36 weeks old
• a small but significant fraction remains arrested in meiosis I in cultured peri-ovulatory oocytes for in vitro oocyte maturation studies
• reduced ovulation rates in 3-week-old superovulated females
• trapped oocytes in luteinizing structures in hormonally stimulated females

homeostasis/metabolism
• decreased serum estradiol levels at 8 weeks old
• increased serum FSH levels at 8 weeks old
• increased serum LH levels at 8 weeks old

cellular
• increased H4K12 acetylation
• increased mono-methylated H3K4 in oocytes
• decreased bi- and tri-methylated H3K4 in oocytes
• fail to establish transcriptional repression
• 80% of the oocytes are still transcriptionally active at the peri-ovulatory stage
• normal nucleolus configuration

endocrine/exocrine glands
• very few follicles at 36 weeks old
• a higher number of primary growing follicles at 2 weeks old
• a 50% decrease in primordial follicles at 3 weeks old
• an 80% reduction in primordial follicles at 8 weeks old
• increase in growing preantral follicles at 3 weeks old
• increased number of atretic follicles from 3 week of age onwards
• a higher number of primary growing follicles at 2 weeks old
• a 50% decrease in primordial follicles and an increase in growing preantral follicles at 3 weeks old
• an 80% reduction in primordial follicles at 8 weeks old
• increased number of atretic follicles from 3 week of age onwards
• very few follicles at 36 weeks old




Genotype
MGI:4867494
cn3
Allelic
Composition
Kmt2btm1Afst/Kmt2btm1.1Afst
Tg(Zp3-cre)3Mrt/0
Genetic
Background
involves: 129 * 129P2/OlaHsd * C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Kmt2btm1.1Afst mutation (0 available); any Kmt2b mutation (63 available)
Kmt2btm1Afst mutation (0 available); any Kmt2b mutation (63 available)
Tg(Zp3-cre)3Mrt mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
reproductive system
• increased number of secondary and preantral follicles at 3 weeks old
• decreased number of preantral follicles at 8 weeks old
• decreased number of primordial follicles at 3 and 8 weeks old
• increased number of atretic follicles at 8 weeks old
• trapped oocytes in luteinizing structures in hormonally stimulated females
• reduced ovulation rates (20%-25% of control rates) in 3-week-old superovulated females

embryo
• embryos generated from matings of mutant females and wild-type males become developmentally arrested between the 1-cell and 4-cell stages

cellular
• increased mono-methylated H3K4 in oocytes
• decreased tri-methylated H3K4 in oocytes

homeostasis/metabolism
• increased serum FSH levels at 8 weeks old

endocrine/exocrine glands
• increased number of secondary and preantral follicles at 3 weeks old
• decreased number of preantral follicles at 8 weeks old
• decreased number of primordial follicles at 3 and 8 weeks old
• increased number of atretic follicles at 8 weeks old




Genotype
MGI:5532302
cn4
Allelic
Composition
Kmt2btm1.1Afst/Kmt2btm1.1Afst
Ndor1Tg(UBC-cre/ERT2)1Ejb/0
Genetic
Background
involves: 129P2/OlaHsd * 129S/Sv * C3H/HeH * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Kmt2btm1.1Afst mutation (0 available); any Kmt2b mutation (63 available)
Ndor1Tg(UBC-cre/ERT2)1Ejb mutation (6 available); any Ndor1 mutation (32 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
homeostasis/metabolism
N
• tamoxifen-treated mice exhibit normal glucose homeostasis




Genotype
MGI:4867492
cn5
Allelic
Composition
Kmt2btm1Afst/Kmt2btm1.1Afst
Amhr2tm3(cre)Bhr/Amhr2+
Genetic
Background
involves: 129P2/OlaHsd * 129S/SvEv * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Amhr2tm3(cre)Bhr mutation (1 available); any Amhr2 mutation (27 available)
Kmt2btm1.1Afst mutation (0 available); any Kmt2b mutation (63 available)
Kmt2btm1Afst mutation (0 available); any Kmt2b mutation (63 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
reproductive system
• decreased number of primordial, primary, secondary and preantral follicles at 36 weeks old
• increased number of atretic follicles at 36 weeks of age
• a small reduction in fertility

cellular
• 50% decrease in global tri-methylated H3K4 levels in granulosa cells

homeostasis/metabolism
• increased serum FSH levels at 8 weeks old

endocrine/exocrine glands
• decreased number of primordial, primary, secondary and preantral follicles at 36 weeks old
• increased number of atretic follicles at 36 weeks of age




Genotype
MGI:4867495
cn6
Allelic
Composition
Kmt2btm1Afst/Kmt2btm1.1Afst
Gt(ROSA)26Sortm9(cre/ESR1)Arte/Gt(ROSA)26Sor+
Genetic
Background
involves: 129P2/OlaHsd * 129S6/SvEvTac * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gt(ROSA)26Sortm9(cre/ESR1)Arte mutation (2 available); any Gt(ROSA)26Sor mutation (942 available)
Kmt2btm1.1Afst mutation (0 available); any Kmt2b mutation (63 available)
Kmt2btm1Afst mutation (0 available); any Kmt2b mutation (63 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
reproductive system
• tamoxifen treatment provokes infertility in females regardless of genotype
• after treatment is discontinued, control animals fully recover fertility, whereas mutant females remain infertile





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