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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Pals1tm1Caw
targeted mutation 1, Christopher A Walsh
MGI:4459078
Summary 6 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Pals1tm1Caw/Pals1tm1Caw Not Specified MGI:4459294
cn2
Pals1tm1Caw/Pals1tm1Caw
Tsc2tm1.1Mjg/Tsc2tm1.1Mjg
Emx1tm1(cre)Krj/Emx1+
involves: 129S1/Sv * 129S2/SvPas * 129X1/SvJ MGI:4459298
cn3
Pals1tm1Caw/Pals1tm1Caw
Emx1tm1(cre)Krj/Emx1+
involves: 129S2/SvPas MGI:4459295
cn4
Pals1tm1Caw/Pals1+
Emx1tm1(cre)Krj/Emx1+
involves: 129S2/SvPas MGI:4459297
cn5
Pals1tm1Caw/Pals1+
Tg(rx3-icre)1Mjam/0
Not Specified MGI:5428847
cn6
Pals1tm1Caw/Pals1tm1Caw
Tg(rx3-icre)1Mjam/0
Not Specified MGI:5428846


Genotype
MGI:4459294
hm1
Allelic
Composition
Pals1tm1Caw/Pals1tm1Caw
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Pals1tm1Caw mutation (0 available); any Pals1 mutation (36 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
normal phenotype
• mice display no abnormal phenotypes




Genotype
MGI:4459298
cn2
Allelic
Composition
Pals1tm1Caw/Pals1tm1Caw
Tsc2tm1.1Mjg/Tsc2tm1.1Mjg
Emx1tm1(cre)Krj/Emx1+
Genetic
Background
involves: 129S1/Sv * 129S2/SvPas * 129X1/SvJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Emx1tm1(cre)Krj mutation (2 available); any Emx1 mutation (34 available)
Pals1tm1Caw mutation (0 available); any Pals1 mutation (36 available)
Tsc2tm1.1Mjg mutation (1 available); any Tsc2 mutation (77 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
• the medial cortex is partially restored compared to in Mpp5tm1Caw/Mpp5tm1Caw Emx1tm1(cre)Krj/Emx1+ mice




Genotype
MGI:4459295
cn3
Allelic
Composition
Pals1tm1Caw/Pals1tm1Caw
Emx1tm1(cre)Krj/Emx1+
Genetic
Background
involves: 129S2/SvPas
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Emx1tm1(cre)Krj mutation (2 available); any Emx1 mutation (34 available)
Pals1tm1Caw mutation (0 available); any Pals1 mutation (36 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
N
• mice exhibit normal survival

reproductive system
N
• mice exhibit normal reproduction

nervous system
• apoptosis in the cortex is increased beginning at E10.5 and peaks at E11 to E12 compared to in wild-type mice
• at E11 and E12, the number of postmitotic neurons is increased compared to in wild-type mice
• at E12, neuronal progenitor cells withdraw from the cell cycle 2.3-fold quicker than wild-type cells
• at E12 and E14, BrdU incorporation in neuronal progenitor cells is 2-fold less than in wild-type mice
• at E12.5 and E14.5, M-phase cell phospho-histone H3 labeling of neuronal progenitor cells is decreased compared to in wild-type mice
• mice exhibit fluid-filled cystic space contiguous with the lateral ventricle not observed in wild-type mice
• the cerebral cortex is virtually absent compared to in wild-type mice
• at E12 and E14, cortical size and morphology is abnormal compared to in wild-type mice
• in the lateral cortex

behavior/neurological
N
• mice exhibit normal reflexes and motor coordination
• initiation of exploration in an open field is decreased compared to wild-type mice
• mice fail to locate a visible platform in a Morris water maze unlike wild-type mice
• mice fail the visual forepaw reach test unlike wild-type mice
• mice perform poorly in a wire hang test compared with wild-type mice
• mice exhibit irregular and jumpy movements that disrupt their stride and gait unlike wild-type mice
• in an open field

growth/size/body

integument

cellular
• apoptosis in the cortex is increased beginning at E10.5 and peaks at E11 to E12 compared to in wild-type mice
• at E11 and E12, the number of postmitotic neurons is increased compared to in wild-type mice
• at E12, neuronal progenitor cells withdraw from the cell cycle 2.3-fold quicker than wild-type cells
• at E12 and E14, BrdU incorporation in neuronal progenitor cells is 2-fold less than in wild-type mice
• at E12.5 and E14.5, M-phase cell phospho-histone H3 labeling of neuronal progenitor cells is decreased compared to in wild-type mice




Genotype
MGI:4459297
cn4
Allelic
Composition
Pals1tm1Caw/Pals1+
Emx1tm1(cre)Krj/Emx1+
Genetic
Background
involves: 129S2/SvPas
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Emx1tm1(cre)Krj mutation (2 available); any Emx1 mutation (34 available)
Pals1tm1Caw mutation (0 available); any Pals1 mutation (36 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
• mice exhibit an intermediate phenotype compared with homozygous mice
• mice exhibit an intermediate phenotype compared with homozygous mice
• mice exhibit a small medial cerebral cortex compared with wild-type mice
• however, the lateral cortex is relatively spared

behavior/neurological
• mice exhibit an intermediate behavioral phenotype compared with homozygous mice

cellular
• mice exhibit an intermediate phenotype compared with homozygous mice
• mice exhibit an intermediate phenotype compared with homozygous mice




Genotype
MGI:5428847
cn5
Allelic
Composition
Pals1tm1Caw/Pals1+
Tg(rx3-icre)1Mjam/0
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Pals1tm1Caw mutation (0 available); any Pals1 mutation (36 available)
Tg(rx3-icre)1Mjam mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
vision/eye
• mice exhibit lamination defects and pseudorossette formation unlike in control mice




Genotype
MGI:5428846
cn6
Allelic
Composition
Pals1tm1Caw/Pals1tm1Caw
Tg(rx3-icre)1Mjam/0
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Pals1tm1Caw mutation (0 available); any Pals1 mutation (36 available)
Tg(rx3-icre)1Mjam mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
vision/eye
• moderately increased apoptosis in the retina at E15.5, E17.5 (8-fold), P0 (3.5-fold) and P35
• moderate-to-severe
• at E17.5, retinal folds are more frequent and prominent compared to in control mice
• at E17.5, retinal exhibit variable thickness unlike in control mice
• at P0, retina exhibit more regular pseudorossettes with mature shape unlike in control mice
• at P14, retinal lamina is locally thinner and severely disorganized compared to in control mice
• during early postnatal stages and progressively worsening at later stages
• thin and disorganized at P0
• less regular appearance compared to in control mice
• locally extruded towards the retinal pigment epithelium side
• completely absent in severely affected adult mice
• at P35 and P60, the photoreceptor layer is either partially or completely devoid unlike in control mice
• some photoreceptors lack both inner and outer segments
• in some mice at P14 and P60
• in some mice at P14 and P60
• cells are reduced in size and are rounded unlike in control cells
• in some mice at P14 and P60
• in some mice at P14 and P60
• pseudorossettes of abnormal rod aggregations contain short and distorted outer and inner segments
• during early postnatal stages and progressively worsening at later stages
• during early postnatal stages and progressively worsening at later stages, mice exhibit degeneration of retinal cells in the photoreceptor, inner nuclear and ganglion cell layers unlike in control mice
• at E17.5, retinal folds are more frequent and prominent compared to in control mice
• at P35, mice exhibit severely reduced electroretinograms compared with control mice
• at P60, mice exhibit reduced or almost undetectable a- and b-waves compared with control mice

cellular
• moderately increased apoptosis in the retina at E15.5, E17.5 (8-fold), P0 (3.5-fold) and P35
• at E15.5 and E17.5, retinas exhibit a disorganized pattern of proliferating cells unlike in control mice
• slightly in the retina at E17.5

immune system
• in the retina at P21, P35 and P60

nervous system
• in the retina at P21, P35 and P60
• in the retina at P21, P35 and P60
• during early postnatal stages and progressively worsening at later stages
• some photoreceptors lack both inner and outer segments
• in some mice at P14 and P60
• in some mice at P14 and P60
• cells are reduced in size and are rounded unlike in control cells
• in some mice at P14 and P60
• in some mice at P14 and P60
• pseudorossettes of abnormal rod aggregations contain short and distorted outer and inner segments
• during early postnatal stages and progressively worsening at later stages

hematopoietic system
• in the retina at P21, P35 and P60

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
Leber congenital amaurosis DOID:14791 OMIM:PS204000
J:184469





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last database update
05/07/2024
MGI 6.23
The Jackson Laboratory