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Phenotypes Associated with This Genotype
Genotype
MGI:3766326
Allelic
Composition
Vac14Gt(RRP155)Byg/Vac14Gt(RRP155)Byg
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Vac14Gt(RRP155)Byg mutation (0 available); any Vac14 mutation (41 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Neural tissue lesions in Vac14Gt(RRP155)Byg/Vac14Gt(RRP155)Byg mice

mortality/aging
• mice are born alive but die within 36 hours after birth

nervous system
• at P0 elevated apoptosis is detected is confined regions of the forebrain including a region of the septum immediately caudal to the corpus callosum and the cingulate cortex
• increase in apoptosis is lower in the forebrain than in the midbrain or hindbrain
• clusters of apoptotic cells are detected in confined areas particularly in areas where lesions are observed
• the increase in apoptosis is greater in the hindbrain and midbrain than in the forebrain
• clusters of apoptotic cells are detected in confined areas particularly in areas where lesions are observed
• the increase in apoptosis is greater in the hindbrain and midbrain than in the forebrain
• at P0, 2 of 3 homozygotes had enlarged lateral ventricles
• lesions are present at P0
• lesions are present at P0
• lesions are present at P0
• lesions are present at P0
• lesions are present at P0
• lesions are present at P0
• lesions may be present at P0
• this region of the brain is not as severely affected as the thalamus, hypothalamus or preoptic area
• although neurons appear relatively normal in vivo, vacuoles form in cultured cells
• lesions may be present at P0
• this region of the brain is not as severely affected as the thalamus, hypothalamus or preoptic area
• although neurons appear relatively normal in vivo, vacuoles form in cultured cells
• lesions are present at P0
• lesions are present at P0
• at P0 lesions are seen in several brain regions including the preoptic area, thalamus, hypothalamus, midbrain, superior colliculus, pons, medulla, cerebellum, and olfactory bulb
• at P0 the hippocampus and cortex are only mildly affected
• lesions appear to be neuronal cell bodies filled with a grossly enlarged vacuole and/or missing cell bodies from cells that have degenerated
• however, the overall shape of the brain is normal
• neuronal cell bodies frequently contain vacuoles ranging from multiple small cytoplasmic vacuoles to a single large vacuole that fills the entire cell bod
• neuronal cell bodies frequently contain vacuoles ranging from multiple small cytoplasmic vacuoles to a single large vacuole that fills the entire cell body

cardiovascular system
• significant degeneration of the atria with large, transparent vacuoles

cellular
• cultured fibroblasts contain multiple large vacuoles
• results suggest that vacuoles for as a result of a defect in late endosomal functions
• however, in vivo abnormalities are only detected in neuronal cells
• at P0 elevated apoptosis is detected is confined regions of the forebrain including a region of the septum immediately caudal to the corpus callosum and the cingulate cortex
• increase in apoptosis is lower in the forebrain than in the midbrain or hindbrain
• clusters of apoptotic cells are detected in confined areas particularly in areas where lesions are observed
• the increase in apoptosis is greater in the hindbrain and midbrain than in the forebrain
• clusters of apoptotic cells are detected in confined areas particularly in areas where lesions are observed
• the increase in apoptosis is greater in the hindbrain and midbrain than in the forebrain


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
04/30/2024
MGI 6.23
The Jackson Laboratory