About   Help   FAQ
Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Cert1Gt(RRF047)Byg
gene trap RRF047, BayGenomics
MGI:3837565
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Cert1Gt(RRF047)Byg/Cert1Gt(RRF047)Byg involves: 129P2/OlaHsd * C57BL/6 MGI:3837568


Genotype
MGI:3837568
hm1
Allelic
Composition
Cert1Gt(RRF047)Byg/Cert1Gt(RRF047)Byg
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cert1Gt(RRF047)Byg mutation (0 available); any Cert1 mutation (28 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Cardiac defects in Cert1Gt(RRF047)Byg/Cert1Gt(RRF047)Byg embryos

mortality/aging

cardiovascular system
• at E9.5 the truncus arteriosus appears thin, transparent and swollen
• at E9.5 in some embryos the entire heart appears swollen with thin transparent walls
• the cardiac jelly is enlarged in many embryos
• at E10.5, walls are thin and fragile
• some embryos show complete regurgitation of the blood into the heart during diastole
• at E9.5 ventricular contractions appear weaker and blood accumulates in the ventricles of some embryos

cellular
N
• no increase in apoptosis is detected in embryos at E10.5
• at E9.5 endoplasmic reticuli from cells in the heart and optic cup show signs of engorgement and vesiculation
• at E10.5 endoplasmic reticulum from cells in the endocardial, muscular and epicardial regions of the heart show proliferation, vesiculation and engorgement
• engorged endoplasmic reticuli are accompanied by an accumulation of lipoid bodies
• at E9.5 mitochondrial changes are visible in cells from the heart and optic cup
• at E10.5 mitochondria in the heart appear pale and engorged and many lack cristae
• at E10.5 degenerating mitochondria are seen in the optic cup
• at E10.5 plasma membrane ceramide levels are reduced while in the endoplasmic reticulum ceramide levels are increased
• however, plasma membrane fluidity is similar to controls
• in embryos at E10.5
• ceramide levels are elevated
• assays suggest that mitochondrial function is impaired

homeostasis/metabolism
• reduced sphingomyelin levels at E10.5
• total hexosylceramide content is reduced at E10.5

embryo
• at E7.5 - E10.5

growth/size/body
• at E7.5 - E10.5

muscle
• at E9.5 ventricular contractions appear weaker and blood accumulates in the ventricles of some embryos





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)
Citing These Resources
Funding Information
Warranty Disclaimer, Privacy Notice, Licensing, & Copyright
Send questions and comments to User Support.
last database update
10/29/2024
MGI 6.24
The Jackson Laboratory