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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Ttntm1.1Her
targeted mutation 1.1, Joachim Herz
MGI:3654306
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Ttntm1.1Her/Ttntm1.1Her involves: 129S4/SvJae * 129T2/SvEms MGI:3654308


Genotype
MGI:3654308
hm1
Allelic
Composition
Ttntm1.1Her/Ttntm1.1Her
Genetic
Background
involves: 129S4/SvJae * 129T2/SvEms
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ttntm1.1Her mutation (0 available); any Ttn mutation (1455 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Ttntm1.1Her/Ttntm1.1Her embryos fail to thrive after E9

mortality/aging
• die around midgestation

cardiovascular system
• from E9.5 myofibrils fail to grow laterally however Z-disc and M-band structure is maintained through E10
• by E11 sarcomeres are disassembled with only a few disarrayed filaments remaining
• however, no increase in cardiac hypertrophic response-related genes expression is seen
• at E10 trabeculation is reduced; however heart looping is normal
• at E10
• at E11 the ventricular wall is unstable and atrophic
• seen at E11 associated with atrophy and instability of the ventricular wall

embryo
• by E10.5, apoptosis is increased throughout the embryo particularly around the peritoneal cavity, this appears to be secondary to impaired cardiac function
• detected at E11 by reduced size and a decrease in the number of somites
• at E9.5 both the head and body are reduced in size

cellular
• by E10.5, apoptosis is increased throughout the embryo particularly around the peritoneal cavity, this appears to be secondary to impaired cardiac function

growth/size/body
• detected at E11 by reduced size and a decrease in the number of somites
• at E9.5 both the head and body are reduced in size

muscle
• from E9.5 myofibrils fail to grow laterally however Z-disc and M-band structure is maintained through E10
• by E11 sarcomeres are disassembled with only a few disarrayed filaments remaining
• however, no increase in cardiac hypertrophic response-related genes expression is seen
• at E10 trabeculation is reduced; however heart looping is normal
• at E10

homeostasis/metabolism
• seen at E11 associated with atrophy and instability of the ventricular wall





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
04/16/2024
MGI 6.23
The Jackson Laboratory