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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Rbpmstm1.1Thbr
targeted mutation 1.1, Thomas Braun
MGI:8226420
Summary 7 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
cn1
Gt(ROSA)26Sortm11(CAG-tdTomato*,-GFP*)Nat/?
Rbpmstm1.1Thbr/Rbpmstm1.1Thbr
Rbpms2tm2.1Thbr/Rbpms2tm2.1Thbr
Tg(Myh6-cre)2182Mds/0
involves: 129 * C57BL/6 * FVB/N MGI:8226709
cn2
Gt(ROSA)26Sortm11(CAG-tdTomato*,-GFP*)Nat/?
Rbpmstm1.1Thbr/Rbpmstm1.1Thbr
Rbpms2tm2.1Thbr/Rbpms2tm2.1Thbr
Tg(myl7.L-cre)1118Tmhn/0
involves: 129 * C57BL/6 * MF1 MGI:8226708
cn3
Nkx2-5tm2(cre)Rph/Nkx2-5+
Rbpmstm1.1Thbr/Rbpmstm1.1Thbr
involves: 129S1/Sv * 129S4/SvJae * C57BL/6 MGI:8226638
cn4
Rbpmstm1.1Thbr/Rbpmstm1.1Thbr
Rbpms2tm2.1Thbr/Rbpms2tm2.1Thbr
involves: 129S4/SvJae * C57BL/6 MGI:8226711
cn5
Rbpmstm1.1Thbr/Rbpmstm1.1Thbr
Rbpms2tm2.1Thbr/Rbpms2tm2.1Thbr
Tg(Myh6-cre)2182Mds/0
involves: 129S4/SvJae * C57BL/6 * FVB/N MGI:8226672
cn6
Rbpmstm1.1Thbr/Rbpmstm1.1Thbr
Tg(myl7.L-cre)1118Tmhn/0
involves: 129S4/SvJae * C57BL/6 * MF1 MGI:8226627
cn7
Rbpmstm1.1Thbr/Rbpmstm1.1Thbr
Rbpms2tm2.1Thbr/Rbpms2tm2.1Thbr
Tg(myl7.L-cre)1118Tmhn/0
involves: 129S4/SvJae * C57BL/6 * MF1 MGI:8226669


Genotype
MGI:8226709
cn1
Allelic
Composition
Gt(ROSA)26Sortm11(CAG-tdTomato*,-GFP*)Nat/?
Rbpmstm1.1Thbr/Rbpmstm1.1Thbr
Rbpms2tm2.1Thbr/Rbpms2tm2.1Thbr
Tg(Myh6-cre)2182Mds/0
Genetic
Background
involves: 129 * C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gt(ROSA)26Sortm11(CAG-tdTomato*,-GFP*)Nat mutation (1 available); any Gt(ROSA)26Sor mutation (1031 available)
Rbpms2tm2.1Thbr mutation (0 available); any Rbpms2 mutation (202 available)
Rbpmstm1.1Thbr mutation (0 available); any Rbpms mutation (493 available)
Tg(Myh6-cre)2182Mds mutation (3 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cardiovascular system
• at E16.5 the nuclei are irregular in outline and size or associated with micronuclei

muscle

cellular
• at E16.5 the nuclei of cardiomyocytes are irregular in outline and size or associated with micronuclei
• at E16.5 the nuclei of cardiomyocytes are irregular in outline and size or associated with micronuclei




Genotype
MGI:8226708
cn2
Allelic
Composition
Gt(ROSA)26Sortm11(CAG-tdTomato*,-GFP*)Nat/?
Rbpmstm1.1Thbr/Rbpmstm1.1Thbr
Rbpms2tm2.1Thbr/Rbpms2tm2.1Thbr
Tg(myl7.L-cre)1118Tmhn/0
Genetic
Background
involves: 129 * C57BL/6 * MF1
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Gt(ROSA)26Sortm11(CAG-tdTomato*,-GFP*)Nat mutation (1 available); any Gt(ROSA)26Sor mutation (1031 available)
Rbpms2tm2.1Thbr mutation (0 available); any Rbpms2 mutation (202 available)
Rbpmstm1.1Thbr mutation (0 available); any Rbpms mutation (493 available)
Tg(myl7.L-cre)1118Tmhn mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cardiovascular system
• at E12.5 the nuclei are irregular in outline and size or associated with micronuclei

cellular
• at E12.5 the nuclei of cardiomyocytes are irregular in outline and size or associated with micronuclei
• at E12.5 the nuclei of cardiomyocytes are irregular in outline and size or associated with micronuclei




Genotype
MGI:8226638
cn3
Allelic
Composition
Nkx2-5tm2(cre)Rph/Nkx2-5+
Rbpmstm1.1Thbr/Rbpmstm1.1Thbr
Genetic
Background
involves: 129S1/Sv * 129S4/SvJae * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Nkx2-5tm2(cre)Rph mutation (2 available); any Nkx2-5 mutation (21 available)
Rbpmstm1.1Thbr mutation (0 available); any Rbpms mutation (493 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• viable at birth but only ~25% are still alive at 40 weeks of age

cardiovascular system
• at 30 weeks of age

digestive/alimentary system
• at 30 weeks of age
• at 30 weeks of age

hematopoietic system
• at 30 weeks of age

immune system
• at 30 weeks of age




Genotype
MGI:8226711
cn4
Allelic
Composition
Rbpmstm1.1Thbr/Rbpmstm1.1Thbr
Rbpms2tm2.1Thbr/Rbpms2tm2.1Thbr
Genetic
Background
involves: 129S4/SvJae * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rbpms2tm2.1Thbr mutation (0 available); any Rbpms2 mutation (202 available)
Rbpmstm1.1Thbr mutation (0 available); any Rbpms mutation (493 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cardiovascular system
• following adeno-cre infection of isolated E14.5 cardiomyocytes, proliferating cardiomyocytes show a higher rate of nuclear defects compared to non-proliferating cells
• following adeno-cre infection of isolated E14.5 cardiomyocytes, spindle and chromosome distribution defects are seen with an increase in the percentage of cells with unaligned chromosomes, multi-polar spindle formation, chromatin bridges, and lagging chromosomes
• following adeno-cre infection of isolated E14.5 cardiomyocytes, cells with micronuclei in telophase

cellular
• following adeno-cre infection of isolated E14.5 cardiomyocytes, proliferating cardiomyocytes show a higher rate of nuclear defects compared to non-proliferating cells
• following adeno-cre infection of isolated E14.5 cardiomyocytes, spindle and chromosome distribution defects are seen with an increase in the percentage of cells with unaligned chromosomes, multi-polar spindle formation, chromatin bridges, and lagging chromosomes
• following adeno-cre infection of isolated E14.5 cardiomyocytes, spindle and chromosome distribution defects are seen with an increase in the percentage of cells with unaligned chromosomes, multi-polar spindle formation, chromatin bridges, and lagging chromosomes
• following adeno-cre infection of isolated E14.5 cardiomyocytes, cells with micronuclei in telophase
• following adeno-cre infection of isolated E14.5 cardiomyocytes, an increase in the percentage of cells with multi-polar spindle formations are seen




Genotype
MGI:8226672
cn5
Allelic
Composition
Rbpmstm1.1Thbr/Rbpmstm1.1Thbr
Rbpms2tm2.1Thbr/Rbpms2tm2.1Thbr
Tg(Myh6-cre)2182Mds/0
Genetic
Background
involves: 129S4/SvJae * C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rbpms2tm2.1Thbr mutation (0 available); any Rbpms2 mutation (202 available)
Rbpmstm1.1Thbr mutation (0 available); any Rbpms mutation (493 available)
Tg(Myh6-cre)2182Mds mutation (3 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cardiovascular system
• slight disorganization of the layer
• reduced thickness in the ventricles and septum at E16.5 and E18.5
• however, the thickness of the trabecular layer is not altered
• disruption of sarcomere integrity in cardiomyocytes at E16.5
• nuclear abnormalities
• expression analysis indicates defects in cardiomyocyte-specific alternative splicing

muscle
• slight disorganization of the layer
• reduced thickness in the ventricles and septum at E16.5 and E18.5
• however, the thickness of the trabecular layer is not altered
• disruption of sarcomere integrity in cardiomyocytes at E16.5




Genotype
MGI:8226627
cn6
Allelic
Composition
Rbpmstm1.1Thbr/Rbpmstm1.1Thbr
Tg(myl7.L-cre)1118Tmhn/0
Genetic
Background
involves: 129S4/SvJae * C57BL/6 * MF1
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rbpmstm1.1Thbr mutation (0 available); any Rbpms mutation (493 available)
Tg(myl7.L-cre)1118Tmhn mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
N
• unlike germline null mice, premature death is not seen

cardiovascular system
• premature increase in the number of binucleated cardiomyocytes at P0
• greater than 2 fold increase in multi-nucleated cardiomyocyes in the adult heart

muscle
• premature increase in the number of binucleated cardiomyocytes at P0
• greater than 2 fold increase in multi-nucleated cardiomyocyes in the adult heart




Genotype
MGI:8226669
cn7
Allelic
Composition
Rbpmstm1.1Thbr/Rbpmstm1.1Thbr
Rbpms2tm2.1Thbr/Rbpms2tm2.1Thbr
Tg(myl7.L-cre)1118Tmhn/0
Genetic
Background
involves: 129S4/SvJae * C57BL/6 * MF1
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Rbpms2tm2.1Thbr mutation (0 available); any Rbpms2 mutation (202 available)
Rbpmstm1.1Thbr mutation (0 available); any Rbpms mutation (493 available)
Tg(myl7.L-cre)1118Tmhn mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cardiovascular system
• slight disorganization of the layer
• reduced thickness in the ventricles and septum at E14.5
• however, the thickness of the trabecular layer is not altered

muscle
• slight disorganization of the layer
• reduced thickness in the ventricles and septum at E14.5
• however, the thickness of the trabecular layer is not altered





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last database update
07/22/2025
MGI 6.24
The Jackson Laboratory