About   Help   FAQ
Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Prkacbtm1Gsm
targeted mutation 1, G Stanley McKnight
MGI:2180946
Summary 4 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Prkacbtm1Gsm/Prkacbtm1Gsm involves: 129X1/SvJ * C57BL/6 MGI:3628814
cx2
Prkacatm1Gsm/Prkaca+
Prkacbtm1Gsm/Prkacbtm1Gsm
involves: 129X1/SvJ * C57BL/6 MGI:3628809
cx3
Prkacatm1Gsm/Prkacatm1Gsm
Prkacbtm1Gsm/Prkacb+
involves: 129X1/SvJ * C57BL/6 MGI:3628811
cx4
Prkacatm1Gsm/Prkacatm1Gsm
Prkacbtm1Gsm/Prkacbtm1Gsm
involves: 129X1/SvJ * C57BL/6 MGI:3628813


Genotype
MGI:3628814
hm1
Allelic
Composition
Prkacbtm1Gsm/Prkacbtm1Gsm
Genetic
Background
involves: 129X1/SvJ * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Prkacbtm1Gsm mutation (0 available); any Prkacb mutation (29 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
• mutants are unable to maintain a potentiated response upon high-frequency stimulation, resulting in a late phase of long-term potentiation that is only 30% of controls, however paired-pulse facilitation is unaffected
• low-frequency stimulation fails to produce lasting synaptic depression as it does in wild-type




Genotype
MGI:3628809
cx2
Allelic
Composition
Prkacatm1Gsm/Prkaca+
Prkacbtm1Gsm/Prkacbtm1Gsm
Genetic
Background
involves: 129X1/SvJ * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Prkacatm1Gsm mutation (1 available); any Prkaca mutation (22 available)
Prkacbtm1Gsm mutation (0 available); any Prkacb mutation (29 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Neural tube defects leading to spina bifida in Prkacatm1Gsm/Prkaca+ Prkacbtm1Gsm/Prkacbtm1Gsm and Prkacatm1Gsm/Prkacatm1Gsm Prkacbtm1Gsm/Prkacb+ mice

mortality/aging
• if mutant pups are kept with their parents, they are rejected and left out of the litter and die, probably from starvation

nervous system
• increase in apoptotic cells in the dorsal and lateral regions of the neural tube
• 100% show spinal neural tube defects
• E9.5-10.5 embryos exhibit a closed neural tube with an expanded alar plate and enlarged lumen in the thoracic and lumbar regions and an expanded neuroepithelium
• E10.5 or older embryos show a drastic increase in the expansion of the neural canal (enlarged lumen) and a neuroepithelium with a higher cell density
• E9.5-E10.5 embryos exhibit an expanded neuroepithelium with a higher cell density
• at the thoracic and lumbar regions
• altered neuronal identity in the neural tube posterior to the forelimb buds leading to a ventralized neural tube (appearance of ventral neuronal progenitors in the dorsal neural tube and loss of dorsal cell types)
• dorsal root ganglia form in E10.5 embryos but regress at E12.5
• significant increase in cell death in the dorsal root ganglia adjacent to the affected neural tube
• dorsal root ganglia are formed in E10.5 embryos but are disorganized

skeleton
• spinal column defects are located in the thoracic and lumbar regions
• ventral curvature of the spine at the defective region
• vertebral arches fail to fuse at the dorsal midline between forelimbs and hindlimbs

embryo
• 100% show spinal neural tube defects
• E9.5-10.5 embryos exhibit a closed neural tube with an expanded alar plate and enlarged lumen in the thoracic and lumbar regions and an expanded neuroepithelium
• E10.5 or older embryos show a drastic increase in the expansion of the neural canal (enlarged lumen) and a neuroepithelium with a higher cell density
• E9.5-E10.5 embryos exhibit an expanded neuroepithelium with a higher cell density
• at the thoracic and lumbar regions

cellular
• increase in apoptotic cells in the dorsal and lateral regions of the neural tube




Genotype
MGI:3628811
cx3
Allelic
Composition
Prkacatm1Gsm/Prkacatm1Gsm
Prkacbtm1Gsm/Prkacb+
Genetic
Background
involves: 129X1/SvJ * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Prkacatm1Gsm mutation (1 available); any Prkaca mutation (22 available)
Prkacbtm1Gsm mutation (0 available); any Prkacb mutation (29 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Neural tube defects leading to spina bifida in Prkacatm1Gsm/Prkaca+ Prkacbtm1Gsm/Prkacbtm1Gsm and Prkacatm1Gsm/Prkacatm1Gsm Prkacbtm1Gsm/Prkacb+ mice

mortality/aging

nervous system
• 75% show spinal neural tube defects
• 25% show spinal neural tube defects and exencephaly
• E9.5-10.5 embryos exhibit a closed neural tube with an expanded alar plate and enlarged lumen in the thoracic and lumbar regions and an expanded neuroepithelium
• E10.5 or older embryos show a drastic increase in the expansion of the neural canal (enlarged lumen) and a neuroepithelium with a higher cell density
• exhibit an increase in apoptotic cells in the dorsal and lateral regions of the neural tube
• E9.5-E10.5 embryos exhibit an expanded neuroepithelium with a higher cell density
• at the thoracic and lumbar regions
• 25% show spinal neural tube defects and exencephaly; exencephaly alone is not observed
• altered neuronal identity in the neural tube posterior to the forelimb buds leading to a ventralized neural tube (appearance of ventral neuronal progenitors in the dorsal neural tube and loss of dorsal cell types)
• dorsal root ganglia form in E10.5 embryos but regress at E12.5
• significant increase in cell death in the dorsal root ganglia adjacent to the affected neural tube
• dorsal root ganglia are formed in E10.5 embryos but are disorganized

skeleton
• spinal column defects are located in the thoracic and lumbar regions
• ventral curvature of the spine at the defective region
• vertebral arches fail to fuse at the dorsal midline between forelimbs and hindlimbs

embryo
• 75% show spinal neural tube defects
• 25% show spinal neural tube defects and exencephaly
• E9.5-10.5 embryos exhibit a closed neural tube with an expanded alar plate and enlarged lumen in the thoracic and lumbar regions and an expanded neuroepithelium
• E10.5 or older embryos show a drastic increase in the expansion of the neural canal (enlarged lumen) and a neuroepithelium with a higher cell density
• exhibit an increase in apoptotic cells in the dorsal and lateral regions of the neural tube
• E9.5-E10.5 embryos exhibit an expanded neuroepithelium with a higher cell density
• at the thoracic and lumbar regions




Genotype
MGI:3628813
cx4
Allelic
Composition
Prkacatm1Gsm/Prkacatm1Gsm
Prkacbtm1Gsm/Prkacbtm1Gsm
Genetic
Background
involves: 129X1/SvJ * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Prkacatm1Gsm mutation (1 available); any Prkaca mutation (22 available)
Prkacbtm1Gsm mutation (0 available); any Prkacb mutation (29 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• all double mutants found at E8.5 to E10.5 are in various stages of resorption, indicating early embryonic lethality





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
04/16/2024
MGI 6.23
The Jackson Laboratory